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1 | ced78a66 | Agata Murawska | #!/usr/bin/python
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2 | ced78a66 | Agata Murawska | #
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3 | ced78a66 | Agata Murawska | |
4 | ced78a66 | Agata Murawska | # Copyright (C) 2011 Google Inc.
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5 | ced78a66 | Agata Murawska | #
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6 | ced78a66 | Agata Murawska | # This program is free software; you can redistribute it and/or modify
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7 | ced78a66 | Agata Murawska | # it under the terms of the GNU General Public License as published by
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8 | ced78a66 | Agata Murawska | # the Free Software Foundation; either version 2 of the License, or
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9 | ced78a66 | Agata Murawska | # (at your option) any later version.
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10 | ced78a66 | Agata Murawska | #
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11 | ced78a66 | Agata Murawska | # This program is distributed in the hope that it will be useful, but
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12 | ced78a66 | Agata Murawska | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | ced78a66 | Agata Murawska | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | ced78a66 | Agata Murawska | # General Public License for more details.
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15 | ced78a66 | Agata Murawska | #
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16 | ced78a66 | Agata Murawska | # You should have received a copy of the GNU General Public License
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17 | ced78a66 | Agata Murawska | # along with this program; if not, write to the Free Software
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18 | ced78a66 | Agata Murawska | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | ced78a66 | Agata Murawska | # 02110-1301, USA.
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20 | ced78a66 | Agata Murawska | |
21 | ced78a66 | Agata Murawska | |
22 | ced78a66 | Agata Murawska | """Converter tools between ovf and ganeti config file
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23 | ced78a66 | Agata Murawska |
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24 | ced78a66 | Agata Murawska | """
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25 | ced78a66 | Agata Murawska | |
26 | 864cf6bf | Agata Murawska | # pylint: disable=F0401, E1101
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27 | 864cf6bf | Agata Murawska | |
28 | 864cf6bf | Agata Murawska | # F0401 because ElementTree is not default for python 2.4
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29 | 864cf6bf | Agata Murawska | # E1101 makes no sense - pylint assumes that ElementTree object is a tuple
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30 | 864cf6bf | Agata Murawska | |
31 | 864cf6bf | Agata Murawska | |
32 | 0963b26a | Agata Murawska | import ConfigParser |
33 | 99381e3b | Agata Murawska | import errno |
34 | 864cf6bf | Agata Murawska | import logging |
35 | 99381e3b | Agata Murawska | import os |
36 | ced78a66 | Agata Murawska | import os.path |
37 | 864cf6bf | Agata Murawska | import re |
38 | ced78a66 | Agata Murawska | import shutil |
39 | 864cf6bf | Agata Murawska | import tarfile |
40 | 864cf6bf | Agata Murawska | import tempfile |
41 | 0963b26a | Agata Murawska | import xml.dom.minidom |
42 | 864cf6bf | Agata Murawska | import xml.parsers.expat |
43 | 864cf6bf | Agata Murawska | try:
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44 | 864cf6bf | Agata Murawska | import xml.etree.ElementTree as ET |
45 | 864cf6bf | Agata Murawska | except ImportError: |
46 | 864cf6bf | Agata Murawska | import elementtree.ElementTree as ET |
47 | ced78a66 | Agata Murawska | |
48 | d6f8db24 | Guido Trotter | try:
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49 | d6f8db24 | Guido Trotter | ParseError = ET.ParseError # pylint: disable=E1103
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50 | d6f8db24 | Guido Trotter | except AttributeError: |
51 | d6f8db24 | Guido Trotter | ParseError = None
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52 | d6f8db24 | Guido Trotter | |
53 | 864cf6bf | Agata Murawska | from ganeti import constants |
54 | ced78a66 | Agata Murawska | from ganeti import errors |
55 | ced78a66 | Agata Murawska | from ganeti import utils |
56 | ced78a66 | Agata Murawska | |
57 | ced78a66 | Agata Murawska | |
58 | 864cf6bf | Agata Murawska | # Schemas used in OVF format
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59 | 864cf6bf | Agata Murawska | GANETI_SCHEMA = "http://ganeti"
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60 | 864cf6bf | Agata Murawska | OVF_SCHEMA = "http://schemas.dmtf.org/ovf/envelope/1"
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61 | 864cf6bf | Agata Murawska | RASD_SCHEMA = ("http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/"
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62 | 864cf6bf | Agata Murawska | "CIM_ResourceAllocationSettingData")
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63 | 0963b26a | Agata Murawska | VSSD_SCHEMA = ("http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/"
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64 | 0963b26a | Agata Murawska | "CIM_VirtualSystemSettingData")
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65 | 0963b26a | Agata Murawska | XML_SCHEMA = "http://www.w3.org/2001/XMLSchema-instance"
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66 | 864cf6bf | Agata Murawska | |
67 | 864cf6bf | Agata Murawska | # File extensions in OVF package
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68 | 864cf6bf | Agata Murawska | OVA_EXT = ".ova"
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69 | 864cf6bf | Agata Murawska | OVF_EXT = ".ovf"
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70 | 864cf6bf | Agata Murawska | MF_EXT = ".mf"
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71 | 864cf6bf | Agata Murawska | CERT_EXT = ".cert"
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72 | 99381e3b | Agata Murawska | COMPRESSION_EXT = ".gz"
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73 | 864cf6bf | Agata Murawska | FILE_EXTENSIONS = [ |
74 | 864cf6bf | Agata Murawska | OVF_EXT, |
75 | 864cf6bf | Agata Murawska | MF_EXT, |
76 | 864cf6bf | Agata Murawska | CERT_EXT, |
77 | 864cf6bf | Agata Murawska | ] |
78 | 864cf6bf | Agata Murawska | |
79 | 99381e3b | Agata Murawska | COMPRESSION_TYPE = "gzip"
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80 | fa337742 | Agata Murawska | NO_COMPRESSION = [None, "identity"] |
81 | 99381e3b | Agata Murawska | COMPRESS = "compression"
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82 | 99381e3b | Agata Murawska | DECOMPRESS = "decompression"
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83 | 99381e3b | Agata Murawska | ALLOWED_ACTIONS = [COMPRESS, DECOMPRESS] |
84 | 99381e3b | Agata Murawska | |
85 | fa337742 | Agata Murawska | VMDK = "vmdk"
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86 | fa337742 | Agata Murawska | RAW = "raw"
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87 | fa337742 | Agata Murawska | COW = "cow"
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88 | fa337742 | Agata Murawska | ALLOWED_FORMATS = [RAW, COW, VMDK] |
89 | fa337742 | Agata Murawska | |
90 | 7bde29b5 | Agata Murawska | # ResourceType values
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91 | 7bde29b5 | Agata Murawska | RASD_TYPE = { |
92 | 7bde29b5 | Agata Murawska | "vcpus": "3", |
93 | 7bde29b5 | Agata Murawska | "memory": "4", |
94 | 7432d332 | Agata Murawska | "scsi-controller": "6", |
95 | 7432d332 | Agata Murawska | "ethernet-adapter": "10", |
96 | 7432d332 | Agata Murawska | "disk": "17", |
97 | 7bde29b5 | Agata Murawska | } |
98 | 7bde29b5 | Agata Murawska | |
99 | fa337742 | Agata Murawska | SCSI_SUBTYPE = "lsilogic"
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100 | fa337742 | Agata Murawska | VS_TYPE = { |
101 | fa337742 | Agata Murawska | "ganeti": "ganeti-ovf", |
102 | fa337742 | Agata Murawska | "external": "vmx-04", |
103 | fa337742 | Agata Murawska | } |
104 | fa337742 | Agata Murawska | |
105 | 7bde29b5 | Agata Murawska | # AllocationUnits values and conversion
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106 | 7bde29b5 | Agata Murawska | ALLOCATION_UNITS = { |
107 | 7bde29b5 | Agata Murawska | 'b': ["bytes", "b"], |
108 | 7bde29b5 | Agata Murawska | 'kb': ["kilobytes", "kb", "byte * 2^10", "kibibytes", "kib"], |
109 | 7bde29b5 | Agata Murawska | 'mb': ["megabytes", "mb", "byte * 2^20", "mebibytes", "mib"], |
110 | 7bde29b5 | Agata Murawska | 'gb': ["gigabytes", "gb", "byte * 2^30", "gibibytes", "gib"], |
111 | 7bde29b5 | Agata Murawska | } |
112 | 7bde29b5 | Agata Murawska | CONVERT_UNITS_TO_MB = { |
113 | 7bde29b5 | Agata Murawska | 'b': lambda x: x / (1024 * 1024), |
114 | 7bde29b5 | Agata Murawska | 'kb': lambda x: x / 1024, |
115 | 7bde29b5 | Agata Murawska | 'mb': lambda x: x, |
116 | 7bde29b5 | Agata Murawska | 'gb': lambda x: x * 1024, |
117 | 7bde29b5 | Agata Murawska | } |
118 | 7bde29b5 | Agata Murawska | |
119 | 0963b26a | Agata Murawska | # Names of the config fields
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120 | 0963b26a | Agata Murawska | NAME = "name"
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121 | b179ce72 | Agata Murawska | OS = "os"
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122 | b179ce72 | Agata Murawska | HYPERV = "hypervisor"
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123 | b179ce72 | Agata Murawska | VCPUS = "vcpus"
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124 | b179ce72 | Agata Murawska | MEMORY = "memory"
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125 | b179ce72 | Agata Murawska | AUTO_BALANCE = "auto_balance"
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126 | b179ce72 | Agata Murawska | DISK_TEMPLATE = "disk_template"
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127 | b179ce72 | Agata Murawska | TAGS = "tags"
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128 | b179ce72 | Agata Murawska | VERSION = "version"
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129 | 0963b26a | Agata Murawska | |
130 | 7432d332 | Agata Murawska | # Instance IDs of System and SCSI controller
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131 | fa337742 | Agata Murawska | INSTANCE_ID = { |
132 | fa337742 | Agata Murawska | "system": 0, |
133 | fa337742 | Agata Murawska | "vcpus": 1, |
134 | fa337742 | Agata Murawska | "memory": 2, |
135 | fa337742 | Agata Murawska | "scsi": 3, |
136 | fa337742 | Agata Murawska | } |
137 | 7432d332 | Agata Murawska | |
138 | 7432d332 | Agata Murawska | # Disk format descriptions
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139 | 7432d332 | Agata Murawska | DISK_FORMAT = { |
140 | fa337742 | Agata Murawska | RAW: "http://en.wikipedia.org/wiki/Byte",
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141 | fa337742 | Agata Murawska | VMDK: "http://www.vmware.com/interfaces/specifications/vmdk.html"
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142 | 7432d332 | Agata Murawska | "#monolithicSparse",
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143 | fa337742 | Agata Murawska | COW: "http://www.gnome.org/~markmc/qcow-image-format.html",
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144 | 7432d332 | Agata Murawska | } |
145 | 7432d332 | Agata Murawska | |
146 | 487895ed | Agata Murawska | |
147 | a002ed79 | Agata Murawska | def CheckQemuImg(): |
148 | a002ed79 | Agata Murawska | """ Make sure that qemu-img is present before performing operations.
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149 | a002ed79 | Agata Murawska |
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150 | a002ed79 | Agata Murawska | @raise errors.OpPrereqError: when qemu-img was not found in the system
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151 | a002ed79 | Agata Murawska |
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152 | a002ed79 | Agata Murawska | """
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153 | a002ed79 | Agata Murawska | if not constants.QEMUIMG_PATH: |
154 | a002ed79 | Agata Murawska | raise errors.OpPrereqError("qemu-img not found at build time, unable" |
155 | a002ed79 | Agata Murawska | " to continue")
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156 | 99381e3b | Agata Murawska | |
157 | 487895ed | Agata Murawska | |
158 | 99381e3b | Agata Murawska | def LinkFile(old_path, prefix=None, suffix=None, directory=None): |
159 | 99381e3b | Agata Murawska | """Create link with a given prefix and suffix.
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160 | 99381e3b | Agata Murawska |
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161 | 99381e3b | Agata Murawska | This is a wrapper over os.link. It tries to create a hard link for given file,
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162 | 99381e3b | Agata Murawska | but instead of rising error when file exists, the function changes the name
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163 | 99381e3b | Agata Murawska | a little bit.
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164 | 99381e3b | Agata Murawska |
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165 | 99381e3b | Agata Murawska | @type old_path:string
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166 | 99381e3b | Agata Murawska | @param old_path: path to the file that is to be linked
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167 | 99381e3b | Agata Murawska | @type prefix: string
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168 | 99381e3b | Agata Murawska | @param prefix: prefix of filename for the link
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169 | 99381e3b | Agata Murawska | @type suffix: string
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170 | 99381e3b | Agata Murawska | @param suffix: suffix of the filename for the link
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171 | 99381e3b | Agata Murawska | @type directory: string
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172 | 99381e3b | Agata Murawska | @param directory: directory of the link
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173 | 99381e3b | Agata Murawska |
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174 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: when error on linking is different than
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175 | 99381e3b | Agata Murawska | "File exists"
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176 | 99381e3b | Agata Murawska |
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177 | 99381e3b | Agata Murawska | """
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178 | 99381e3b | Agata Murawska | assert(prefix is not None or suffix is not None) |
179 | 99381e3b | Agata Murawska | if directory is None: |
180 | 99381e3b | Agata Murawska | directory = os.getcwd() |
181 | 99381e3b | Agata Murawska | new_path = utils.PathJoin(directory, "%s%s" % (prefix, suffix))
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182 | 99381e3b | Agata Murawska | counter = 1
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183 | 99381e3b | Agata Murawska | while True: |
184 | 99381e3b | Agata Murawska | try:
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185 | 99381e3b | Agata Murawska | os.link(old_path, new_path) |
186 | 99381e3b | Agata Murawska | break
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187 | 99381e3b | Agata Murawska | except OSError, err: |
188 | 99381e3b | Agata Murawska | if err.errno == errno.EEXIST:
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189 | 99381e3b | Agata Murawska | new_path = utils.PathJoin(directory, |
190 | 99381e3b | Agata Murawska | "%s_%s%s" % (prefix, counter, suffix))
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191 | 99381e3b | Agata Murawska | counter += 1
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192 | 99381e3b | Agata Murawska | else:
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193 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Error moving the file %s to %s location:" |
194 | 99381e3b | Agata Murawska | " %s" % (old_path, new_path, err))
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195 | 99381e3b | Agata Murawska | return new_path
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196 | 99381e3b | Agata Murawska | |
197 | 864cf6bf | Agata Murawska | |
198 | 864cf6bf | Agata Murawska | class OVFReader(object): |
199 | 864cf6bf | Agata Murawska | """Reader class for OVF files.
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200 | 864cf6bf | Agata Murawska |
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201 | 864cf6bf | Agata Murawska | @type files_list: list
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202 | 864cf6bf | Agata Murawska | @ivar files_list: list of files in the OVF package
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203 | 864cf6bf | Agata Murawska | @type tree: ET.ElementTree
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204 | 864cf6bf | Agata Murawska | @ivar tree: XML tree of the .ovf file
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205 | 864cf6bf | Agata Murawska | @type schema_name: string
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206 | 864cf6bf | Agata Murawska | @ivar schema_name: name of the .ovf file
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207 | 864cf6bf | Agata Murawska | @type input_dir: string
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208 | 864cf6bf | Agata Murawska | @ivar input_dir: directory in which the .ovf file resides
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209 | 864cf6bf | Agata Murawska |
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210 | 864cf6bf | Agata Murawska | """
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211 | 864cf6bf | Agata Murawska | def __init__(self, input_path): |
212 | 864cf6bf | Agata Murawska | """Initialiaze the reader - load the .ovf file to XML parser.
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213 | 864cf6bf | Agata Murawska |
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214 | 864cf6bf | Agata Murawska | It is assumed that names of manifesto (.mf), certificate (.cert) and ovf
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215 | 864cf6bf | Agata Murawska | files are the same. In order to account any other files as part of the ovf
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216 | 864cf6bf | Agata Murawska | package, they have to be explicitly mentioned in the Resources section
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217 | 864cf6bf | Agata Murawska | of the .ovf file.
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218 | 864cf6bf | Agata Murawska |
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219 | 864cf6bf | Agata Murawska | @type input_path: string
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220 | 864cf6bf | Agata Murawska | @param input_path: absolute path to the .ovf file
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221 | 864cf6bf | Agata Murawska |
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222 | 864cf6bf | Agata Murawska | @raise errors.OpPrereqError: when .ovf file is not a proper XML file or some
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223 | 864cf6bf | Agata Murawska | of the files mentioned in Resources section do not exist
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224 | 864cf6bf | Agata Murawska |
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225 | 864cf6bf | Agata Murawska | """
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226 | 864cf6bf | Agata Murawska | self.tree = ET.ElementTree()
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227 | 864cf6bf | Agata Murawska | try:
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228 | 864cf6bf | Agata Murawska | self.tree.parse(input_path)
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229 | d6f8db24 | Guido Trotter | except (ParseError, xml.parsers.expat.ExpatError), err:
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230 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("Error while reading %s file: %s" % |
231 | 864cf6bf | Agata Murawska | (OVF_EXT, err)) |
232 | 864cf6bf | Agata Murawska | |
233 | 864cf6bf | Agata Murawska | # Create a list of all files in the OVF package
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234 | 864cf6bf | Agata Murawska | (input_dir, input_file) = os.path.split(input_path) |
235 | 864cf6bf | Agata Murawska | (input_name, _) = os.path.splitext(input_file) |
236 | 864cf6bf | Agata Murawska | files_directory = utils.ListVisibleFiles(input_dir) |
237 | 864cf6bf | Agata Murawska | files_list = [] |
238 | 864cf6bf | Agata Murawska | for file_name in files_directory: |
239 | 864cf6bf | Agata Murawska | (name, extension) = os.path.splitext(file_name) |
240 | 864cf6bf | Agata Murawska | if extension in FILE_EXTENSIONS and name == input_name: |
241 | 864cf6bf | Agata Murawska | files_list.append(file_name) |
242 | 864cf6bf | Agata Murawska | files_list += self._GetAttributes("{%s}References/{%s}File" % |
243 | 864cf6bf | Agata Murawska | (OVF_SCHEMA, OVF_SCHEMA), |
244 | 864cf6bf | Agata Murawska | "{%s}href" % OVF_SCHEMA)
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245 | 864cf6bf | Agata Murawska | for file_name in files_list: |
246 | 864cf6bf | Agata Murawska | file_path = utils.PathJoin(input_dir, file_name) |
247 | 864cf6bf | Agata Murawska | if not os.path.exists(file_path): |
248 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("File does not exist: %s" % file_path) |
249 | 864cf6bf | Agata Murawska | logging.info("Files in the OVF package: %s", " ".join(files_list)) |
250 | 864cf6bf | Agata Murawska | self.files_list = files_list
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251 | 864cf6bf | Agata Murawska | self.input_dir = input_dir
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252 | 864cf6bf | Agata Murawska | self.schema_name = input_name
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253 | 864cf6bf | Agata Murawska | |
254 | 864cf6bf | Agata Murawska | def _GetAttributes(self, path, attribute): |
255 | 864cf6bf | Agata Murawska | """Get specified attribute from all nodes accessible using given path.
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256 | 864cf6bf | Agata Murawska |
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257 | 864cf6bf | Agata Murawska | Function follows the path from root node to the desired tags using path,
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258 | 864cf6bf | Agata Murawska | then reads the apropriate attribute values.
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259 | 864cf6bf | Agata Murawska |
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260 | 864cf6bf | Agata Murawska | @type path: string
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261 | 864cf6bf | Agata Murawska | @param path: path of nodes to visit
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262 | 864cf6bf | Agata Murawska | @type attribute: string
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263 | 864cf6bf | Agata Murawska | @param attribute: attribute for which we gather the information
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264 | 864cf6bf | Agata Murawska | @rtype: list
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265 | 864cf6bf | Agata Murawska | @return: for each accessible tag with the attribute value set, value of the
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266 | 864cf6bf | Agata Murawska | attribute
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267 | 864cf6bf | Agata Murawska |
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268 | 864cf6bf | Agata Murawska | """
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269 | 864cf6bf | Agata Murawska | current_list = self.tree.findall(path)
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270 | 864cf6bf | Agata Murawska | results = [x.get(attribute) for x in current_list] |
271 | 864cf6bf | Agata Murawska | return filter(None, results) |
272 | 864cf6bf | Agata Murawska | |
273 | 99381e3b | Agata Murawska | def _GetElementMatchingAttr(self, path, match_attr): |
274 | 99381e3b | Agata Murawska | """Searches for element on a path that matches certain attribute value.
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275 | 99381e3b | Agata Murawska |
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276 | 99381e3b | Agata Murawska | Function follows the path from root node to the desired tags using path,
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277 | 99381e3b | Agata Murawska | then searches for the first one matching the attribute value.
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278 | 99381e3b | Agata Murawska |
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279 | 99381e3b | Agata Murawska | @type path: string
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280 | 99381e3b | Agata Murawska | @param path: path of nodes to visit
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281 | 99381e3b | Agata Murawska | @type match_attr: tuple
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282 | 99381e3b | Agata Murawska | @param match_attr: pair (attribute, value) for which we search
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283 | 99381e3b | Agata Murawska | @rtype: ET.ElementTree or None
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284 | 99381e3b | Agata Murawska | @return: first element matching match_attr or None if nothing matches
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285 | 99381e3b | Agata Murawska |
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286 | 99381e3b | Agata Murawska | """
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287 | 99381e3b | Agata Murawska | potential_elements = self.tree.findall(path)
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288 | 99381e3b | Agata Murawska | (attr, val) = match_attr |
289 | 99381e3b | Agata Murawska | for elem in potential_elements: |
290 | 99381e3b | Agata Murawska | if elem.get(attr) == val:
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291 | 99381e3b | Agata Murawska | return elem
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292 | 99381e3b | Agata Murawska | return None |
293 | 99381e3b | Agata Murawska | |
294 | 24b9469d | Agata Murawska | def _GetElementMatchingText(self, path, match_text): |
295 | 24b9469d | Agata Murawska | """Searches for element on a path that matches certain text value.
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296 | 24b9469d | Agata Murawska |
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297 | 24b9469d | Agata Murawska | Function follows the path from root node to the desired tags using path,
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298 | 24b9469d | Agata Murawska | then searches for the first one matching the text value.
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299 | 24b9469d | Agata Murawska |
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300 | 24b9469d | Agata Murawska | @type path: string
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301 | 24b9469d | Agata Murawska | @param path: path of nodes to visit
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302 | 24b9469d | Agata Murawska | @type match_text: tuple
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303 | 24b9469d | Agata Murawska | @param match_text: pair (node, text) for which we search
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304 | 24b9469d | Agata Murawska | @rtype: ET.ElementTree or None
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305 | 24b9469d | Agata Murawska | @return: first element matching match_text or None if nothing matches
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306 | 24b9469d | Agata Murawska |
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307 | 24b9469d | Agata Murawska | """
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308 | 24b9469d | Agata Murawska | potential_elements = self.tree.findall(path)
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309 | 24b9469d | Agata Murawska | (node, text) = match_text |
310 | 24b9469d | Agata Murawska | for elem in potential_elements: |
311 | 24b9469d | Agata Murawska | if elem.findtext(node) == text:
|
312 | 24b9469d | Agata Murawska | return elem
|
313 | 24b9469d | Agata Murawska | return None |
314 | 24b9469d | Agata Murawska | |
315 | 99381e3b | Agata Murawska | @staticmethod
|
316 | 99381e3b | Agata Murawska | def _GetDictParameters(root, schema): |
317 | 99381e3b | Agata Murawska | """Reads text in all children and creates the dictionary from the contents.
|
318 | 99381e3b | Agata Murawska |
|
319 | 99381e3b | Agata Murawska | @type root: ET.ElementTree or None
|
320 | 99381e3b | Agata Murawska | @param root: father of the nodes we want to collect data about
|
321 | 99381e3b | Agata Murawska | @type schema: string
|
322 | 99381e3b | Agata Murawska | @param schema: schema name to be removed from the tag
|
323 | 99381e3b | Agata Murawska | @rtype: dict
|
324 | 99381e3b | Agata Murawska | @return: dictionary containing tags and their text contents, tags have their
|
325 | 99381e3b | Agata Murawska | schema fragment removed or empty dictionary, when root is None
|
326 | 99381e3b | Agata Murawska |
|
327 | 99381e3b | Agata Murawska | """
|
328 | 99381e3b | Agata Murawska | if not root: |
329 | 99381e3b | Agata Murawska | return {}
|
330 | 99381e3b | Agata Murawska | results = {} |
331 | 99381e3b | Agata Murawska | for element in list(root): |
332 | 99381e3b | Agata Murawska | pref_len = len("{%s}" % schema) |
333 | 99381e3b | Agata Murawska | assert(schema in element.tag) |
334 | 99381e3b | Agata Murawska | tag = element.tag[pref_len:] |
335 | 99381e3b | Agata Murawska | results[tag] = element.text |
336 | 99381e3b | Agata Murawska | return results
|
337 | 99381e3b | Agata Murawska | |
338 | 864cf6bf | Agata Murawska | def VerifyManifest(self): |
339 | 864cf6bf | Agata Murawska | """Verifies manifest for the OVF package, if one is given.
|
340 | 864cf6bf | Agata Murawska |
|
341 | 864cf6bf | Agata Murawska | @raise errors.OpPrereqError: if SHA1 checksums do not match
|
342 | 864cf6bf | Agata Murawska |
|
343 | 864cf6bf | Agata Murawska | """
|
344 | 864cf6bf | Agata Murawska | if "%s%s" % (self.schema_name, MF_EXT) in self.files_list: |
345 | 864cf6bf | Agata Murawska | logging.warning("Verifying SHA1 checksums, this may take a while")
|
346 | 864cf6bf | Agata Murawska | manifest_filename = "%s%s" % (self.schema_name, MF_EXT) |
347 | 864cf6bf | Agata Murawska | manifest_path = utils.PathJoin(self.input_dir, manifest_filename)
|
348 | 864cf6bf | Agata Murawska | manifest_content = utils.ReadFile(manifest_path).splitlines() |
349 | 864cf6bf | Agata Murawska | manifest_files = {} |
350 | 864cf6bf | Agata Murawska | regexp = r"SHA1\((\S+)\)= (\S+)"
|
351 | 864cf6bf | Agata Murawska | for line in manifest_content: |
352 | 864cf6bf | Agata Murawska | match = re.match(regexp, line) |
353 | 864cf6bf | Agata Murawska | if match:
|
354 | 864cf6bf | Agata Murawska | file_name = match.group(1)
|
355 | 864cf6bf | Agata Murawska | sha1_sum = match.group(2)
|
356 | 864cf6bf | Agata Murawska | manifest_files[file_name] = sha1_sum |
357 | 864cf6bf | Agata Murawska | files_with_paths = [utils.PathJoin(self.input_dir, file_name)
|
358 | 864cf6bf | Agata Murawska | for file_name in self.files_list] |
359 | 864cf6bf | Agata Murawska | sha1_sums = utils.FingerprintFiles(files_with_paths) |
360 | 864cf6bf | Agata Murawska | for file_name, value in manifest_files.iteritems(): |
361 | 864cf6bf | Agata Murawska | if sha1_sums.get(utils.PathJoin(self.input_dir, file_name)) != value: |
362 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("SHA1 checksum of %s does not match the" |
363 | 864cf6bf | Agata Murawska | " value in manifest file" % file_name)
|
364 | 864cf6bf | Agata Murawska | logging.info("SHA1 checksums verified")
|
365 | 864cf6bf | Agata Murawska | |
366 | 99381e3b | Agata Murawska | def GetInstanceName(self): |
367 | 99381e3b | Agata Murawska | """Provides information about instance name.
|
368 | 99381e3b | Agata Murawska |
|
369 | 99381e3b | Agata Murawska | @rtype: string
|
370 | 99381e3b | Agata Murawska | @return: instance name string
|
371 | 99381e3b | Agata Murawska |
|
372 | 99381e3b | Agata Murawska | """
|
373 | 99381e3b | Agata Murawska | find_name = "{%s}VirtualSystem/{%s}Name" % (OVF_SCHEMA, OVF_SCHEMA)
|
374 | 99381e3b | Agata Murawska | return self.tree.findtext(find_name) |
375 | 99381e3b | Agata Murawska | |
376 | 99381e3b | Agata Murawska | def GetDiskTemplate(self): |
377 | 99381e3b | Agata Murawska | """Returns disk template from .ovf file
|
378 | 99381e3b | Agata Murawska |
|
379 | 99381e3b | Agata Murawska | @rtype: string or None
|
380 | 99381e3b | Agata Murawska | @return: name of the template
|
381 | 99381e3b | Agata Murawska | """
|
382 | 99381e3b | Agata Murawska | find_template = ("{%s}GanetiSection/{%s}DiskTemplate" %
|
383 | 99381e3b | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA)) |
384 | 99381e3b | Agata Murawska | return self.tree.findtext(find_template) |
385 | 99381e3b | Agata Murawska | |
386 | 7bde29b5 | Agata Murawska | def GetHypervisorData(self): |
387 | 7bde29b5 | Agata Murawska | """Provides hypervisor information - hypervisor name and options.
|
388 | 7bde29b5 | Agata Murawska |
|
389 | 7bde29b5 | Agata Murawska | @rtype: dict
|
390 | 7bde29b5 | Agata Murawska | @return: dictionary containing name of the used hypervisor and all the
|
391 | 7bde29b5 | Agata Murawska | specified options
|
392 | 7bde29b5 | Agata Murawska |
|
393 | 7bde29b5 | Agata Murawska | """
|
394 | 7bde29b5 | Agata Murawska | hypervisor_search = ("{%s}GanetiSection/{%s}Hypervisor" %
|
395 | 7bde29b5 | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA)) |
396 | 7bde29b5 | Agata Murawska | hypervisor_data = self.tree.find(hypervisor_search)
|
397 | 7bde29b5 | Agata Murawska | if not hypervisor_data: |
398 | 7bde29b5 | Agata Murawska | return {"hypervisor_name": constants.VALUE_AUTO} |
399 | 7bde29b5 | Agata Murawska | results = { |
400 | 7bde29b5 | Agata Murawska | "hypervisor_name": hypervisor_data.findtext("{%s}Name" % GANETI_SCHEMA, |
401 | 7bde29b5 | Agata Murawska | default=constants.VALUE_AUTO), |
402 | 7bde29b5 | Agata Murawska | } |
403 | 7bde29b5 | Agata Murawska | parameters = hypervisor_data.find("{%s}Parameters" % GANETI_SCHEMA)
|
404 | 7bde29b5 | Agata Murawska | results.update(self._GetDictParameters(parameters, GANETI_SCHEMA))
|
405 | 7bde29b5 | Agata Murawska | return results
|
406 | 7bde29b5 | Agata Murawska | |
407 | 7bde29b5 | Agata Murawska | def GetOSData(self): |
408 | 7bde29b5 | Agata Murawska | """ Provides operating system information - os name and options.
|
409 | 7bde29b5 | Agata Murawska |
|
410 | 7bde29b5 | Agata Murawska | @rtype: dict
|
411 | 7bde29b5 | Agata Murawska | @return: dictionary containing name and options for the chosen OS
|
412 | 7bde29b5 | Agata Murawska |
|
413 | 7bde29b5 | Agata Murawska | """
|
414 | 7bde29b5 | Agata Murawska | results = {} |
415 | 7bde29b5 | Agata Murawska | os_search = ("{%s}GanetiSection/{%s}OperatingSystem" %
|
416 | 7bde29b5 | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA)) |
417 | 7bde29b5 | Agata Murawska | os_data = self.tree.find(os_search)
|
418 | 7bde29b5 | Agata Murawska | if os_data:
|
419 | 7bde29b5 | Agata Murawska | results["os_name"] = os_data.findtext("{%s}Name" % GANETI_SCHEMA) |
420 | 7bde29b5 | Agata Murawska | parameters = os_data.find("{%s}Parameters" % GANETI_SCHEMA)
|
421 | 7bde29b5 | Agata Murawska | results.update(self._GetDictParameters(parameters, GANETI_SCHEMA))
|
422 | 7bde29b5 | Agata Murawska | return results
|
423 | 7bde29b5 | Agata Murawska | |
424 | 7bde29b5 | Agata Murawska | def GetBackendData(self): |
425 | 7bde29b5 | Agata Murawska | """ Provides backend information - vcpus, memory, auto balancing options.
|
426 | 7bde29b5 | Agata Murawska |
|
427 | 7bde29b5 | Agata Murawska | @rtype: dict
|
428 | 7bde29b5 | Agata Murawska | @return: dictionary containing options for vcpus, memory and auto balance
|
429 | 7bde29b5 | Agata Murawska | settings
|
430 | 7bde29b5 | Agata Murawska |
|
431 | 7bde29b5 | Agata Murawska | """
|
432 | 7bde29b5 | Agata Murawska | results = {} |
433 | 7bde29b5 | Agata Murawska | |
434 | 7bde29b5 | Agata Murawska | find_vcpus = ("{%s}VirtualSystem/{%s}VirtualHardwareSection/{%s}Item" %
|
435 | 7bde29b5 | Agata Murawska | (OVF_SCHEMA, OVF_SCHEMA, OVF_SCHEMA)) |
436 | 7bde29b5 | Agata Murawska | match_vcpus = ("{%s}ResourceType" % RASD_SCHEMA, RASD_TYPE["vcpus"]) |
437 | 7bde29b5 | Agata Murawska | vcpus = self._GetElementMatchingText(find_vcpus, match_vcpus)
|
438 | 7bde29b5 | Agata Murawska | if vcpus:
|
439 | 7bde29b5 | Agata Murawska | vcpus_count = vcpus.findtext("{%s}VirtualQuantity" % RASD_SCHEMA,
|
440 | 7bde29b5 | Agata Murawska | default=constants.VALUE_AUTO) |
441 | 7bde29b5 | Agata Murawska | else:
|
442 | 7bde29b5 | Agata Murawska | vcpus_count = constants.VALUE_AUTO |
443 | 7bde29b5 | Agata Murawska | results["vcpus"] = str(vcpus_count) |
444 | 7bde29b5 | Agata Murawska | |
445 | 7bde29b5 | Agata Murawska | find_memory = find_vcpus |
446 | 7bde29b5 | Agata Murawska | match_memory = ("{%s}ResourceType" % RASD_SCHEMA, RASD_TYPE["memory"]) |
447 | 7bde29b5 | Agata Murawska | memory = self._GetElementMatchingText(find_memory, match_memory)
|
448 | 7bde29b5 | Agata Murawska | memory_raw = None
|
449 | 7bde29b5 | Agata Murawska | if memory:
|
450 | 7bde29b5 | Agata Murawska | alloc_units = memory.findtext("{%s}AllocationUnits" % RASD_SCHEMA)
|
451 | 7bde29b5 | Agata Murawska | matching_units = [units for units, variants in |
452 | 7bde29b5 | Agata Murawska | ALLOCATION_UNITS.iteritems() if alloc_units.lower() in variants] |
453 | 7bde29b5 | Agata Murawska | if matching_units == []:
|
454 | 7bde29b5 | Agata Murawska | raise errors.OpPrereqError("Unit %s for RAM memory unknown", |
455 | 7bde29b5 | Agata Murawska | alloc_units) |
456 | 7bde29b5 | Agata Murawska | units = matching_units[0]
|
457 | 7bde29b5 | Agata Murawska | memory_raw = int(memory.findtext("{%s}VirtualQuantity" % RASD_SCHEMA, |
458 | 7bde29b5 | Agata Murawska | default=constants.VALUE_AUTO)) |
459 | 7bde29b5 | Agata Murawska | memory_count = CONVERT_UNITS_TO_MB[units](memory_raw) |
460 | 7bde29b5 | Agata Murawska | else:
|
461 | 7bde29b5 | Agata Murawska | memory_count = constants.VALUE_AUTO |
462 | 7bde29b5 | Agata Murawska | results["memory"] = str(memory_count) |
463 | 7bde29b5 | Agata Murawska | |
464 | 7bde29b5 | Agata Murawska | find_balance = ("{%s}GanetiSection/{%s}AutoBalance" %
|
465 | 7bde29b5 | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA)) |
466 | 7bde29b5 | Agata Murawska | balance = self.tree.findtext(find_balance, default=constants.VALUE_AUTO)
|
467 | 7bde29b5 | Agata Murawska | results["auto_balance"] = balance
|
468 | 7bde29b5 | Agata Murawska | |
469 | 7bde29b5 | Agata Murawska | return results
|
470 | 7bde29b5 | Agata Murawska | |
471 | 7bde29b5 | Agata Murawska | def GetTagsData(self): |
472 | 7bde29b5 | Agata Murawska | """Provides tags information for instance.
|
473 | 7bde29b5 | Agata Murawska |
|
474 | 7bde29b5 | Agata Murawska | @rtype: string or None
|
475 | 7bde29b5 | Agata Murawska | @return: string of comma-separated tags for the instance
|
476 | 7bde29b5 | Agata Murawska |
|
477 | 7bde29b5 | Agata Murawska | """
|
478 | 7bde29b5 | Agata Murawska | find_tags = "{%s}GanetiSection/{%s}Tags" % (GANETI_SCHEMA, GANETI_SCHEMA)
|
479 | 7bde29b5 | Agata Murawska | results = self.tree.findtext(find_tags)
|
480 | 7bde29b5 | Agata Murawska | if results:
|
481 | 7bde29b5 | Agata Murawska | return results
|
482 | 7bde29b5 | Agata Murawska | else:
|
483 | 7bde29b5 | Agata Murawska | return None |
484 | 7bde29b5 | Agata Murawska | |
485 | 7bde29b5 | Agata Murawska | def GetVersionData(self): |
486 | 7bde29b5 | Agata Murawska | """Provides version number read from .ovf file
|
487 | 7bde29b5 | Agata Murawska |
|
488 | 7bde29b5 | Agata Murawska | @rtype: string
|
489 | 7bde29b5 | Agata Murawska | @return: string containing the version number
|
490 | 7bde29b5 | Agata Murawska |
|
491 | 7bde29b5 | Agata Murawska | """
|
492 | 7bde29b5 | Agata Murawska | find_version = ("{%s}GanetiSection/{%s}Version" %
|
493 | 7bde29b5 | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA)) |
494 | 7bde29b5 | Agata Murawska | return self.tree.findtext(find_version) |
495 | 7bde29b5 | Agata Murawska | |
496 | 24b9469d | Agata Murawska | def GetNetworkData(self): |
497 | 24b9469d | Agata Murawska | """Provides data about the network in the OVF instance.
|
498 | 24b9469d | Agata Murawska |
|
499 | 24b9469d | Agata Murawska | The method gathers the data about networks used by OVF instance. It assumes
|
500 | 24b9469d | Agata Murawska | that 'name' tag means something - in essence, if it contains one of the
|
501 | 24b9469d | Agata Murawska | words 'bridged' or 'routed' then that will be the mode of this network in
|
502 | 24b9469d | Agata Murawska | Ganeti. The information about the network can be either in GanetiSection or
|
503 | 24b9469d | Agata Murawska | VirtualHardwareSection.
|
504 | 24b9469d | Agata Murawska |
|
505 | 24b9469d | Agata Murawska | @rtype: dict
|
506 | 24b9469d | Agata Murawska | @return: dictionary containing all the network information
|
507 | 24b9469d | Agata Murawska |
|
508 | 24b9469d | Agata Murawska | """
|
509 | 24b9469d | Agata Murawska | results = {} |
510 | 24b9469d | Agata Murawska | networks_search = ("{%s}NetworkSection/{%s}Network" %
|
511 | 24b9469d | Agata Murawska | (OVF_SCHEMA, OVF_SCHEMA)) |
512 | 24b9469d | Agata Murawska | network_names = self._GetAttributes(networks_search,
|
513 | 24b9469d | Agata Murawska | "{%s}name" % OVF_SCHEMA)
|
514 | 24b9469d | Agata Murawska | required = ["ip", "mac", "link", "mode"] |
515 | 24b9469d | Agata Murawska | for (counter, network_name) in enumerate(network_names): |
516 | 24b9469d | Agata Murawska | network_search = ("{%s}VirtualSystem/{%s}VirtualHardwareSection/{%s}Item"
|
517 | 24b9469d | Agata Murawska | % (OVF_SCHEMA, OVF_SCHEMA, OVF_SCHEMA)) |
518 | 24b9469d | Agata Murawska | ganeti_search = ("{%s}GanetiSection/{%s}Network/{%s}Nic" %
|
519 | 24b9469d | Agata Murawska | (GANETI_SCHEMA, GANETI_SCHEMA, GANETI_SCHEMA)) |
520 | 24b9469d | Agata Murawska | network_match = ("{%s}Connection" % RASD_SCHEMA, network_name)
|
521 | 24b9469d | Agata Murawska | ganeti_match = ("{%s}name" % OVF_SCHEMA, network_name)
|
522 | 24b9469d | Agata Murawska | network_data = self._GetElementMatchingText(network_search, network_match)
|
523 | 24b9469d | Agata Murawska | network_ganeti_data = self._GetElementMatchingAttr(ganeti_search,
|
524 | 24b9469d | Agata Murawska | ganeti_match) |
525 | 24b9469d | Agata Murawska | |
526 | 24b9469d | Agata Murawska | ganeti_data = {} |
527 | 24b9469d | Agata Murawska | if network_ganeti_data:
|
528 | 24b9469d | Agata Murawska | ganeti_data["mode"] = network_ganeti_data.findtext("{%s}Mode" % |
529 | 24b9469d | Agata Murawska | GANETI_SCHEMA) |
530 | 24b9469d | Agata Murawska | ganeti_data["mac"] = network_ganeti_data.findtext("{%s}MACAddress" % |
531 | 24b9469d | Agata Murawska | GANETI_SCHEMA) |
532 | 24b9469d | Agata Murawska | ganeti_data["ip"] = network_ganeti_data.findtext("{%s}IPAddress" % |
533 | 24b9469d | Agata Murawska | GANETI_SCHEMA) |
534 | 24b9469d | Agata Murawska | ganeti_data["link"] = network_ganeti_data.findtext("{%s}Link" % |
535 | 24b9469d | Agata Murawska | GANETI_SCHEMA) |
536 | 24b9469d | Agata Murawska | mac_data = None
|
537 | 24b9469d | Agata Murawska | if network_data:
|
538 | 24b9469d | Agata Murawska | mac_data = network_data.findtext("{%s}Address" % RASD_SCHEMA)
|
539 | 24b9469d | Agata Murawska | |
540 | 24b9469d | Agata Murawska | network_name = network_name.lower() |
541 | 24b9469d | Agata Murawska | |
542 | 24b9469d | Agata Murawska | # First, some not Ganeti-specific information is collected
|
543 | 24b9469d | Agata Murawska | if constants.NIC_MODE_BRIDGED in network_name: |
544 | 24b9469d | Agata Murawska | results["nic%s_mode" % counter] = "bridged" |
545 | 24b9469d | Agata Murawska | elif constants.NIC_MODE_ROUTED in network_name: |
546 | 24b9469d | Agata Murawska | results["nic%s_mode" % counter] = "routed" |
547 | 24b9469d | Agata Murawska | results["nic%s_mac" % counter] = mac_data
|
548 | 24b9469d | Agata Murawska | |
549 | 24b9469d | Agata Murawska | # GanetiSection data overrides 'manually' collected data
|
550 | 24b9469d | Agata Murawska | for name, value in ganeti_data.iteritems(): |
551 | 24b9469d | Agata Murawska | results["nic%s_%s" % (counter, name)] = value
|
552 | 24b9469d | Agata Murawska | |
553 | 24b9469d | Agata Murawska | # Bridged network has no IP - unless specifically stated otherwise
|
554 | 24b9469d | Agata Murawska | if (results.get("nic%s_mode" % counter) == "bridged" and |
555 | 24b9469d | Agata Murawska | not results.get("nic%s_ip" % counter)): |
556 | 24b9469d | Agata Murawska | results["nic%s_ip" % counter] = constants.VALUE_NONE
|
557 | 24b9469d | Agata Murawska | |
558 | 24b9469d | Agata Murawska | for option in required: |
559 | 24b9469d | Agata Murawska | if not results.get("nic%s_%s" % (counter, option)): |
560 | 24b9469d | Agata Murawska | results["nic%s_%s" % (counter, option)] = constants.VALUE_AUTO
|
561 | 24b9469d | Agata Murawska | |
562 | 24b9469d | Agata Murawska | if network_names:
|
563 | 24b9469d | Agata Murawska | results["nic_count"] = str(len(network_names)) |
564 | 24b9469d | Agata Murawska | return results
|
565 | 24b9469d | Agata Murawska | |
566 | 99381e3b | Agata Murawska | def GetDisksNames(self): |
567 | 99381e3b | Agata Murawska | """Provides list of file names for the disks used by the instance.
|
568 | 99381e3b | Agata Murawska |
|
569 | 99381e3b | Agata Murawska | @rtype: list
|
570 | 99381e3b | Agata Murawska | @return: list of file names, as referenced in .ovf file
|
571 | 99381e3b | Agata Murawska |
|
572 | 99381e3b | Agata Murawska | """
|
573 | 99381e3b | Agata Murawska | results = [] |
574 | 99381e3b | Agata Murawska | disks_search = "{%s}DiskSection/{%s}Disk" % (OVF_SCHEMA, OVF_SCHEMA)
|
575 | 99381e3b | Agata Murawska | disk_ids = self._GetAttributes(disks_search, "{%s}fileRef" % OVF_SCHEMA) |
576 | 99381e3b | Agata Murawska | for disk in disk_ids: |
577 | 99381e3b | Agata Murawska | disk_search = "{%s}References/{%s}File" % (OVF_SCHEMA, OVF_SCHEMA)
|
578 | 99381e3b | Agata Murawska | disk_match = ("{%s}id" % OVF_SCHEMA, disk)
|
579 | 99381e3b | Agata Murawska | disk_elem = self._GetElementMatchingAttr(disk_search, disk_match)
|
580 | 99381e3b | Agata Murawska | if disk_elem is None: |
581 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("%s file corrupted - disk %s not found in" |
582 | 99381e3b | Agata Murawska | " references" % (OVF_EXT, disk))
|
583 | 99381e3b | Agata Murawska | disk_name = disk_elem.get("{%s}href" % OVF_SCHEMA)
|
584 | 99381e3b | Agata Murawska | disk_compression = disk_elem.get("{%s}compression" % OVF_SCHEMA)
|
585 | 99381e3b | Agata Murawska | results.append((disk_name, disk_compression)) |
586 | 99381e3b | Agata Murawska | return results
|
587 | 99381e3b | Agata Murawska | |
588 | 864cf6bf | Agata Murawska | |
589 | 7432d332 | Agata Murawska | def SubElementText(parent, tag, text, attrib={}, **extra): |
590 | 7432d332 | Agata Murawska | # pylint: disable=W0102
|
591 | 7432d332 | Agata Murawska | """This is just a wrapper on ET.SubElement that always has text content.
|
592 | 7432d332 | Agata Murawska |
|
593 | 7432d332 | Agata Murawska | """
|
594 | 7432d332 | Agata Murawska | if text is None: |
595 | 7432d332 | Agata Murawska | return None |
596 | 7432d332 | Agata Murawska | elem = ET.SubElement(parent, tag, attrib=attrib, **extra) |
597 | 7432d332 | Agata Murawska | elem.text = str(text)
|
598 | 7432d332 | Agata Murawska | return elem
|
599 | 7432d332 | Agata Murawska | |
600 | 7432d332 | Agata Murawska | |
601 | 0963b26a | Agata Murawska | class OVFWriter(object): |
602 | 0963b26a | Agata Murawska | """Writer class for OVF files.
|
603 | 0963b26a | Agata Murawska |
|
604 | 0963b26a | Agata Murawska | @type tree: ET.ElementTree
|
605 | 0963b26a | Agata Murawska | @ivar tree: XML tree that we are constructing
|
606 | fa337742 | Agata Murawska | @type virtual_system_type: string
|
607 | fa337742 | Agata Murawska | @ivar virtual_system_type: value of vssd:VirtualSystemType, for external usage
|
608 | fa337742 | Agata Murawska | in VMWare this requires to be vmx
|
609 | 7432d332 | Agata Murawska | @type hardware_list: list
|
610 | 7432d332 | Agata Murawska | @ivar hardware_list: list of items prepared for VirtualHardwareSection
|
611 | fa337742 | Agata Murawska | @type next_instance_id: int
|
612 | fa337742 | Agata Murawska | @ivar next_instance_id: next instance id to be used when creating elements on
|
613 | fa337742 | Agata Murawska | hardware_list
|
614 | 0963b26a | Agata Murawska |
|
615 | 0963b26a | Agata Murawska | """
|
616 | 0963b26a | Agata Murawska | def __init__(self, has_gnt_section): |
617 | 0963b26a | Agata Murawska | """Initialize the writer - set the top element.
|
618 | 0963b26a | Agata Murawska |
|
619 | 0963b26a | Agata Murawska | @type has_gnt_section: bool
|
620 | 0963b26a | Agata Murawska | @param has_gnt_section: if the Ganeti schema should be added - i.e. this
|
621 | 0963b26a | Agata Murawska | means that Ganeti section will be present
|
622 | 0963b26a | Agata Murawska |
|
623 | 0963b26a | Agata Murawska | """
|
624 | 0963b26a | Agata Murawska | env_attribs = { |
625 | 0963b26a | Agata Murawska | "xmlns:xsi": XML_SCHEMA,
|
626 | 0963b26a | Agata Murawska | "xmlns:vssd": VSSD_SCHEMA,
|
627 | 0963b26a | Agata Murawska | "xmlns:rasd": RASD_SCHEMA,
|
628 | 0963b26a | Agata Murawska | "xmlns:ovf": OVF_SCHEMA,
|
629 | 0963b26a | Agata Murawska | "xmlns": OVF_SCHEMA,
|
630 | 0963b26a | Agata Murawska | "xml:lang": "en-US", |
631 | 0963b26a | Agata Murawska | } |
632 | 0963b26a | Agata Murawska | if has_gnt_section:
|
633 | 0963b26a | Agata Murawska | env_attribs["xmlns:gnt"] = GANETI_SCHEMA
|
634 | fa337742 | Agata Murawska | self.virtual_system_type = VS_TYPE["ganeti"] |
635 | fa337742 | Agata Murawska | else:
|
636 | fa337742 | Agata Murawska | self.virtual_system_type = VS_TYPE["external"] |
637 | 0963b26a | Agata Murawska | self.tree = ET.Element("Envelope", attrib=env_attribs) |
638 | 7432d332 | Agata Murawska | self.hardware_list = []
|
639 | fa337742 | Agata Murawska | # INSTANCE_ID contains statically assigned IDs, starting from 0
|
640 | fa337742 | Agata Murawska | self.next_instance_id = len(INSTANCE_ID) # FIXME: hackish |
641 | 7432d332 | Agata Murawska | |
642 | 7432d332 | Agata Murawska | def SaveDisksData(self, disks): |
643 | 7432d332 | Agata Murawska | """Convert disk information to certain OVF sections.
|
644 | 7432d332 | Agata Murawska |
|
645 | 7432d332 | Agata Murawska | @type disks: list
|
646 | 7432d332 | Agata Murawska | @param disks: list of dictionaries of disk options from config.ini
|
647 | 7432d332 | Agata Murawska |
|
648 | 7432d332 | Agata Murawska | """
|
649 | 7432d332 | Agata Murawska | references = ET.SubElement(self.tree, "References") |
650 | 7432d332 | Agata Murawska | disk_section = ET.SubElement(self.tree, "DiskSection") |
651 | fa337742 | Agata Murawska | SubElementText(disk_section, "Info", "Virtual disk information") |
652 | 7432d332 | Agata Murawska | for counter, disk in enumerate(disks): |
653 | 7432d332 | Agata Murawska | file_id = "file%s" % counter
|
654 | 7432d332 | Agata Murawska | disk_id = "disk%s" % counter
|
655 | 7432d332 | Agata Murawska | file_attribs = { |
656 | 7432d332 | Agata Murawska | "ovf:href": disk["path"], |
657 | 7432d332 | Agata Murawska | "ovf:size": str(disk["real-size"]), |
658 | 7432d332 | Agata Murawska | "ovf:id": file_id,
|
659 | 7432d332 | Agata Murawska | } |
660 | 7432d332 | Agata Murawska | disk_attribs = { |
661 | 7432d332 | Agata Murawska | "ovf:capacity": str(disk["virt-size"]), |
662 | 7432d332 | Agata Murawska | "ovf:diskId": disk_id,
|
663 | 7432d332 | Agata Murawska | "ovf:fileRef": file_id,
|
664 | 7432d332 | Agata Murawska | "ovf:format": DISK_FORMAT.get(disk["format"], disk["format"]), |
665 | 7432d332 | Agata Murawska | } |
666 | 7432d332 | Agata Murawska | if "compression" in disk: |
667 | 7432d332 | Agata Murawska | file_attribs["ovf:compression"] = disk["compression"] |
668 | 7432d332 | Agata Murawska | ET.SubElement(references, "File", attrib=file_attribs)
|
669 | 7432d332 | Agata Murawska | ET.SubElement(disk_section, "Disk", attrib=disk_attribs)
|
670 | 7432d332 | Agata Murawska | |
671 | 7432d332 | Agata Murawska | # Item in VirtualHardwareSection creation
|
672 | 7432d332 | Agata Murawska | disk_item = ET.Element("Item")
|
673 | 7432d332 | Agata Murawska | SubElementText(disk_item, "rasd:ElementName", disk_id)
|
674 | 7432d332 | Agata Murawska | SubElementText(disk_item, "rasd:HostResource", "ovf:/disk/%s" % disk_id) |
675 | fa337742 | Agata Murawska | SubElementText(disk_item, "rasd:InstanceID", self.next_instance_id) |
676 | fa337742 | Agata Murawska | SubElementText(disk_item, "rasd:Parent", INSTANCE_ID["scsi"]) |
677 | fa337742 | Agata Murawska | SubElementText(disk_item, "rasd:ResourceType", RASD_TYPE["disk"]) |
678 | 7432d332 | Agata Murawska | self.hardware_list.append(disk_item)
|
679 | fa337742 | Agata Murawska | self.next_instance_id += 1 |
680 | 7432d332 | Agata Murawska | |
681 | 7432d332 | Agata Murawska | def SaveNetworksData(self, networks): |
682 | 7432d332 | Agata Murawska | """Convert network information to NetworkSection.
|
683 | 7432d332 | Agata Murawska |
|
684 | 7432d332 | Agata Murawska | @type networks: list
|
685 | 7432d332 | Agata Murawska | @param networks: list of dictionaries of network options form config.ini
|
686 | 7432d332 | Agata Murawska |
|
687 | 7432d332 | Agata Murawska | """
|
688 | 7432d332 | Agata Murawska | network_section = ET.SubElement(self.tree, "NetworkSection") |
689 | fa337742 | Agata Murawska | SubElementText(network_section, "Info", "List of logical networks") |
690 | 7432d332 | Agata Murawska | for counter, network in enumerate(networks): |
691 | 7432d332 | Agata Murawska | network_name = "%s%s" % (network["mode"], counter) |
692 | 7432d332 | Agata Murawska | network_attrib = {"ovf:name": network_name}
|
693 | 7432d332 | Agata Murawska | ET.SubElement(network_section, "Network", attrib=network_attrib)
|
694 | 7432d332 | Agata Murawska | |
695 | 7432d332 | Agata Murawska | # Item in VirtualHardwareSection creation
|
696 | 7432d332 | Agata Murawska | network_item = ET.Element("Item")
|
697 | fa337742 | Agata Murawska | SubElementText(network_item, "rasd:Address", network["mac"]) |
698 | fa337742 | Agata Murawska | SubElementText(network_item, "rasd:Connection", network_name)
|
699 | 7432d332 | Agata Murawska | SubElementText(network_item, "rasd:ElementName", network_name)
|
700 | fa337742 | Agata Murawska | SubElementText(network_item, "rasd:InstanceID", self.next_instance_id) |
701 | 7432d332 | Agata Murawska | SubElementText(network_item, "rasd:ResourceType",
|
702 | 7432d332 | Agata Murawska | RASD_TYPE["ethernet-adapter"])
|
703 | 7432d332 | Agata Murawska | self.hardware_list.append(network_item)
|
704 | fa337742 | Agata Murawska | self.next_instance_id += 1 |
705 | 7432d332 | Agata Murawska | |
706 | 7432d332 | Agata Murawska | @staticmethod
|
707 | 7432d332 | Agata Murawska | def _SaveNameAndParams(root, data): |
708 | 7432d332 | Agata Murawska | """Save name and parameters information under root using data.
|
709 | 7432d332 | Agata Murawska |
|
710 | 7432d332 | Agata Murawska | @type root: ET.Element
|
711 | 7432d332 | Agata Murawska | @param root: root element for the Name and Parameters
|
712 | 7432d332 | Agata Murawska | @type data: dict
|
713 | 7432d332 | Agata Murawska | @param data: data from which we gather the values
|
714 | 7432d332 | Agata Murawska |
|
715 | 7432d332 | Agata Murawska | """
|
716 | 7432d332 | Agata Murawska | assert(data.get("name")) |
717 | 7432d332 | Agata Murawska | name = SubElementText(root, "gnt:Name", data["name"]) |
718 | 7432d332 | Agata Murawska | params = ET.SubElement(root, "gnt:Parameters")
|
719 | 7432d332 | Agata Murawska | for name, value in data.iteritems(): |
720 | 7432d332 | Agata Murawska | if name != "name": |
721 | 7432d332 | Agata Murawska | SubElementText(params, "gnt:%s" % name, value)
|
722 | 7432d332 | Agata Murawska | |
723 | 7432d332 | Agata Murawska | def SaveGanetiData(self, ganeti, networks): |
724 | 7432d332 | Agata Murawska | """Convert Ganeti-specific information to GanetiSection.
|
725 | 7432d332 | Agata Murawska |
|
726 | 7432d332 | Agata Murawska | @type ganeti: dict
|
727 | 7432d332 | Agata Murawska | @param ganeti: dictionary of Ganeti-specific options from config.ini
|
728 | 7432d332 | Agata Murawska | @type networks: list
|
729 | 7432d332 | Agata Murawska | @param networks: list of dictionaries of network options form config.ini
|
730 | 7432d332 | Agata Murawska |
|
731 | 7432d332 | Agata Murawska | """
|
732 | 7432d332 | Agata Murawska | ganeti_section = ET.SubElement(self.tree, "gnt:GanetiSection") |
733 | 7432d332 | Agata Murawska | |
734 | 7432d332 | Agata Murawska | SubElementText(ganeti_section, "gnt:Version", ganeti.get("version")) |
735 | 7432d332 | Agata Murawska | SubElementText(ganeti_section, "gnt:DiskTemplate",
|
736 | 7432d332 | Agata Murawska | ganeti.get("disk_template"))
|
737 | 7432d332 | Agata Murawska | SubElementText(ganeti_section, "gnt:AutoBalance",
|
738 | 7432d332 | Agata Murawska | ganeti.get("auto_balance"))
|
739 | 7432d332 | Agata Murawska | SubElementText(ganeti_section, "gnt:Tags", ganeti.get("tags")) |
740 | 7432d332 | Agata Murawska | |
741 | 7432d332 | Agata Murawska | osys = ET.SubElement(ganeti_section, "gnt:OperatingSystem")
|
742 | 7432d332 | Agata Murawska | self._SaveNameAndParams(osys, ganeti["os"]) |
743 | 7432d332 | Agata Murawska | |
744 | 7432d332 | Agata Murawska | hypervisor = ET.SubElement(ganeti_section, "gnt:Hypervisor")
|
745 | 7432d332 | Agata Murawska | self._SaveNameAndParams(hypervisor, ganeti["hypervisor"]) |
746 | 7432d332 | Agata Murawska | |
747 | 7432d332 | Agata Murawska | network_section = ET.SubElement(ganeti_section, "gnt:Network")
|
748 | 7432d332 | Agata Murawska | for counter, network in enumerate(networks): |
749 | 7432d332 | Agata Murawska | network_name = "%s%s" % (network["mode"], counter) |
750 | 7432d332 | Agata Murawska | nic_attrib = {"ovf:name": network_name}
|
751 | 7432d332 | Agata Murawska | nic = ET.SubElement(network_section, "gnt:Nic", attrib=nic_attrib)
|
752 | 7432d332 | Agata Murawska | SubElementText(nic, "gnt:Mode", network["mode"]) |
753 | 7432d332 | Agata Murawska | SubElementText(nic, "gnt:MACAddress", network["mac"]) |
754 | 7432d332 | Agata Murawska | SubElementText(nic, "gnt:IPAddress", network["ip"]) |
755 | 7432d332 | Agata Murawska | SubElementText(nic, "gnt:Link", network["link"]) |
756 | 7432d332 | Agata Murawska | |
757 | 7432d332 | Agata Murawska | def SaveVirtualSystemData(self, name, vcpus, memory): |
758 | 7432d332 | Agata Murawska | """Convert virtual system information to OVF sections.
|
759 | 7432d332 | Agata Murawska |
|
760 | 7432d332 | Agata Murawska | @type name: string
|
761 | 7432d332 | Agata Murawska | @param name: name of the instance
|
762 | 7432d332 | Agata Murawska | @type vcpus: int
|
763 | 7432d332 | Agata Murawska | @param vcpus: number of VCPUs
|
764 | 7432d332 | Agata Murawska | @type memory: int
|
765 | 7432d332 | Agata Murawska | @param memory: RAM memory in MB
|
766 | 7432d332 | Agata Murawska |
|
767 | 7432d332 | Agata Murawska | """
|
768 | 7432d332 | Agata Murawska | assert(vcpus > 0) |
769 | 7432d332 | Agata Murawska | assert(memory > 0) |
770 | 7432d332 | Agata Murawska | vs_attrib = {"ovf:id": name}
|
771 | 7432d332 | Agata Murawska | virtual_system = ET.SubElement(self.tree, "VirtualSystem", attrib=vs_attrib) |
772 | fa337742 | Agata Murawska | SubElementText(virtual_system, "Info", "A virtual machine") |
773 | 7432d332 | Agata Murawska | |
774 | 7432d332 | Agata Murawska | name_section = ET.SubElement(virtual_system, "Name")
|
775 | 7432d332 | Agata Murawska | name_section.text = name |
776 | 7432d332 | Agata Murawska | os_attrib = {"ovf:id": "0"} |
777 | fa337742 | Agata Murawska | os_section = ET.SubElement(virtual_system, "OperatingSystemSection",
|
778 | 7432d332 | Agata Murawska | attrib=os_attrib) |
779 | fa337742 | Agata Murawska | SubElementText(os_section, "Info", "Installed guest operating system") |
780 | 7432d332 | Agata Murawska | hardware_section = ET.SubElement(virtual_system, "VirtualHardwareSection")
|
781 | fa337742 | Agata Murawska | SubElementText(hardware_section, "Info", "Virtual hardware requirements") |
782 | 7432d332 | Agata Murawska | |
783 | 7432d332 | Agata Murawska | # System description
|
784 | 7432d332 | Agata Murawska | system = ET.SubElement(hardware_section, "System")
|
785 | 7432d332 | Agata Murawska | SubElementText(system, "vssd:ElementName", "Virtual Hardware Family") |
786 | fa337742 | Agata Murawska | SubElementText(system, "vssd:InstanceID", INSTANCE_ID["system"]) |
787 | 7432d332 | Agata Murawska | SubElementText(system, "vssd:VirtualSystemIdentifier", name)
|
788 | fa337742 | Agata Murawska | SubElementText(system, "vssd:VirtualSystemType", self.virtual_system_type) |
789 | 7432d332 | Agata Murawska | |
790 | 7432d332 | Agata Murawska | # Item for vcpus
|
791 | 7432d332 | Agata Murawska | vcpus_item = ET.SubElement(hardware_section, "Item")
|
792 | 7432d332 | Agata Murawska | SubElementText(vcpus_item, "rasd:ElementName",
|
793 | 7432d332 | Agata Murawska | "%s virtual CPU(s)" % vcpus)
|
794 | fa337742 | Agata Murawska | SubElementText(vcpus_item, "rasd:InstanceID", INSTANCE_ID["vcpus"]) |
795 | 7432d332 | Agata Murawska | SubElementText(vcpus_item, "rasd:ResourceType", RASD_TYPE["vcpus"]) |
796 | 7432d332 | Agata Murawska | SubElementText(vcpus_item, "rasd:VirtualQuantity", vcpus)
|
797 | 7432d332 | Agata Murawska | |
798 | 7432d332 | Agata Murawska | # Item for memory
|
799 | 7432d332 | Agata Murawska | memory_item = ET.SubElement(hardware_section, "Item")
|
800 | 7432d332 | Agata Murawska | SubElementText(memory_item, "rasd:AllocationUnits", "byte * 2^20") |
801 | 7432d332 | Agata Murawska | SubElementText(memory_item, "rasd:ElementName", "%sMB of memory" % memory) |
802 | fa337742 | Agata Murawska | SubElementText(memory_item, "rasd:InstanceID", INSTANCE_ID["memory"]) |
803 | 7432d332 | Agata Murawska | SubElementText(memory_item, "rasd:ResourceType", RASD_TYPE["memory"]) |
804 | 7432d332 | Agata Murawska | SubElementText(memory_item, "rasd:VirtualQuantity", memory)
|
805 | 7432d332 | Agata Murawska | |
806 | 7432d332 | Agata Murawska | # Item for scsi controller
|
807 | 7432d332 | Agata Murawska | scsi_item = ET.SubElement(hardware_section, "Item")
|
808 | fa337742 | Agata Murawska | SubElementText(scsi_item, "rasd:Address", INSTANCE_ID["system"]) |
809 | 7432d332 | Agata Murawska | SubElementText(scsi_item, "rasd:ElementName", "scsi_controller0") |
810 | fa337742 | Agata Murawska | SubElementText(scsi_item, "rasd:InstanceID", INSTANCE_ID["scsi"]) |
811 | fa337742 | Agata Murawska | SubElementText(scsi_item, "rasd:ResourceSubType", SCSI_SUBTYPE)
|
812 | 7432d332 | Agata Murawska | SubElementText(scsi_item, "rasd:ResourceType", RASD_TYPE["scsi-controller"]) |
813 | 7432d332 | Agata Murawska | |
814 | 7432d332 | Agata Murawska | # Other items - from self.hardware_list
|
815 | fa337742 | Agata Murawska | for item in self.hardware_list: |
816 | 7432d332 | Agata Murawska | hardware_section.append(item) |
817 | 0963b26a | Agata Murawska | |
818 | 0963b26a | Agata Murawska | def PrettyXmlDump(self): |
819 | 0963b26a | Agata Murawska | """Formatter of the XML file.
|
820 | 0963b26a | Agata Murawska |
|
821 | 0963b26a | Agata Murawska | @rtype: string
|
822 | 0963b26a | Agata Murawska | @return: XML tree in the form of nicely-formatted string
|
823 | 0963b26a | Agata Murawska |
|
824 | 0963b26a | Agata Murawska | """
|
825 | 0963b26a | Agata Murawska | raw_string = ET.tostring(self.tree)
|
826 | 0963b26a | Agata Murawska | parsed_xml = xml.dom.minidom.parseString(raw_string) |
827 | 0963b26a | Agata Murawska | xml_string = parsed_xml.toprettyxml(indent=" ")
|
828 | 0963b26a | Agata Murawska | text_re = re.compile(">\n\s+([^<>\s].*?)\n\s+</", re.DOTALL)
|
829 | 0963b26a | Agata Murawska | return text_re.sub(">\g<1></", xml_string) |
830 | 0963b26a | Agata Murawska | |
831 | 0963b26a | Agata Murawska | |
832 | ced78a66 | Agata Murawska | class Converter(object): |
833 | ced78a66 | Agata Murawska | """Converter class for OVF packages.
|
834 | ced78a66 | Agata Murawska |
|
835 | ced78a66 | Agata Murawska | Converter is a class above both ImporterOVF and ExporterOVF. It's purpose is
|
836 | ced78a66 | Agata Murawska | to provide a common interface for the two.
|
837 | ced78a66 | Agata Murawska |
|
838 | ced78a66 | Agata Murawska | @type options: optparse.Values
|
839 | ced78a66 | Agata Murawska | @ivar options: options parsed from the command line
|
840 | ced78a66 | Agata Murawska | @type output_dir: string
|
841 | ced78a66 | Agata Murawska | @ivar output_dir: directory to which the results of conversion shall be
|
842 | ced78a66 | Agata Murawska | written
|
843 | ced78a66 | Agata Murawska | @type temp_file_manager: L{utils.TemporaryFileManager}
|
844 | ced78a66 | Agata Murawska | @ivar temp_file_manager: container for temporary files created during
|
845 | ced78a66 | Agata Murawska | conversion
|
846 | ced78a66 | Agata Murawska | @type temp_dir: string
|
847 | ced78a66 | Agata Murawska | @ivar temp_dir: temporary directory created then we deal with OVA
|
848 | ced78a66 | Agata Murawska |
|
849 | ced78a66 | Agata Murawska | """
|
850 | ced78a66 | Agata Murawska | def __init__(self, input_path, options): |
851 | ced78a66 | Agata Murawska | """Initialize the converter.
|
852 | ced78a66 | Agata Murawska |
|
853 | ced78a66 | Agata Murawska | @type input_path: string
|
854 | ced78a66 | Agata Murawska | @param input_path: path to the Converter input file
|
855 | ced78a66 | Agata Murawska | @type options: optparse.Values
|
856 | ced78a66 | Agata Murawska | @param options: command line options
|
857 | ced78a66 | Agata Murawska |
|
858 | ced78a66 | Agata Murawska | @raise errors.OpPrereqError: if file does not exist
|
859 | ced78a66 | Agata Murawska |
|
860 | ced78a66 | Agata Murawska | """
|
861 | ced78a66 | Agata Murawska | input_path = os.path.abspath(input_path) |
862 | ced78a66 | Agata Murawska | if not os.path.isfile(input_path): |
863 | ced78a66 | Agata Murawska | raise errors.OpPrereqError("File does not exist: %s" % input_path) |
864 | ced78a66 | Agata Murawska | self.options = options
|
865 | ced78a66 | Agata Murawska | self.temp_file_manager = utils.TemporaryFileManager()
|
866 | ced78a66 | Agata Murawska | self.temp_dir = None |
867 | ced78a66 | Agata Murawska | self.output_dir = None |
868 | ced78a66 | Agata Murawska | self._ReadInputData(input_path)
|
869 | ced78a66 | Agata Murawska | |
870 | ced78a66 | Agata Murawska | def _ReadInputData(self, input_path): |
871 | ced78a66 | Agata Murawska | """Reads the data on which the conversion will take place.
|
872 | ced78a66 | Agata Murawska |
|
873 | ced78a66 | Agata Murawska | @type input_path: string
|
874 | ced78a66 | Agata Murawska | @param input_path: absolute path to the Converter input file
|
875 | ced78a66 | Agata Murawska |
|
876 | ced78a66 | Agata Murawska | """
|
877 | ced78a66 | Agata Murawska | raise NotImplementedError() |
878 | ced78a66 | Agata Murawska | |
879 | 99381e3b | Agata Murawska | def _CompressDisk(self, disk_path, compression, action): |
880 | 99381e3b | Agata Murawska | """Performs (de)compression on the disk and returns the new path
|
881 | 99381e3b | Agata Murawska |
|
882 | 99381e3b | Agata Murawska | @type disk_path: string
|
883 | 99381e3b | Agata Murawska | @param disk_path: path to the disk
|
884 | 99381e3b | Agata Murawska | @type compression: string
|
885 | 99381e3b | Agata Murawska | @param compression: compression type
|
886 | 99381e3b | Agata Murawska | @type action: string
|
887 | 99381e3b | Agata Murawska | @param action: whether the action is compression or decompression
|
888 | 99381e3b | Agata Murawska | @rtype: string
|
889 | 99381e3b | Agata Murawska | @return: new disk path after (de)compression
|
890 | 99381e3b | Agata Murawska |
|
891 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: disk (de)compression failed or "compression"
|
892 | 99381e3b | Agata Murawska | is not supported
|
893 | 99381e3b | Agata Murawska |
|
894 | 99381e3b | Agata Murawska | """
|
895 | 99381e3b | Agata Murawska | assert(action in ALLOWED_ACTIONS) |
896 | 99381e3b | Agata Murawska | # For now we only support gzip, as it is used in ovftool
|
897 | 99381e3b | Agata Murawska | if compression != COMPRESSION_TYPE:
|
898 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Unsupported compression type: %s" |
899 | 99381e3b | Agata Murawska | % compression) |
900 | 99381e3b | Agata Murawska | disk_file = os.path.basename(disk_path) |
901 | 99381e3b | Agata Murawska | if action == DECOMPRESS:
|
902 | 99381e3b | Agata Murawska | (disk_name, _) = os.path.splitext(disk_file) |
903 | 99381e3b | Agata Murawska | prefix = disk_name |
904 | 99381e3b | Agata Murawska | elif action == COMPRESS:
|
905 | 99381e3b | Agata Murawska | prefix = disk_file |
906 | 99381e3b | Agata Murawska | new_path = utils.GetClosedTempfile(suffix=COMPRESSION_EXT, prefix=prefix, |
907 | 99381e3b | Agata Murawska | dir=self.output_dir)
|
908 | 99381e3b | Agata Murawska | self.temp_file_manager.Add(new_path)
|
909 | 99381e3b | Agata Murawska | args = ["gzip", "-c", disk_path] |
910 | 99381e3b | Agata Murawska | run_result = utils.RunCmd(args, output=new_path) |
911 | 99381e3b | Agata Murawska | if run_result.failed:
|
912 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Disk %s failed with output: %s" |
913 | 99381e3b | Agata Murawska | % (action, run_result.stderr)) |
914 | 99381e3b | Agata Murawska | logging.info("The %s of the disk is completed", action)
|
915 | 99381e3b | Agata Murawska | return (COMPRESSION_EXT, new_path)
|
916 | 99381e3b | Agata Murawska | |
917 | 99381e3b | Agata Murawska | def _ConvertDisk(self, disk_format, disk_path): |
918 | 99381e3b | Agata Murawska | """Performes conversion to specified format.
|
919 | 99381e3b | Agata Murawska |
|
920 | 99381e3b | Agata Murawska | @type disk_format: string
|
921 | 99381e3b | Agata Murawska | @param disk_format: format to which the disk should be converted
|
922 | 99381e3b | Agata Murawska | @type disk_path: string
|
923 | 99381e3b | Agata Murawska | @param disk_path: path to the disk that should be converted
|
924 | 99381e3b | Agata Murawska | @rtype: string
|
925 | 99381e3b | Agata Murawska | @return path to the output disk
|
926 | 99381e3b | Agata Murawska |
|
927 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: convertion of the disk failed
|
928 | 99381e3b | Agata Murawska |
|
929 | 99381e3b | Agata Murawska | """
|
930 | a002ed79 | Agata Murawska | CheckQemuImg() |
931 | 99381e3b | Agata Murawska | disk_file = os.path.basename(disk_path) |
932 | 99381e3b | Agata Murawska | (disk_name, disk_extension) = os.path.splitext(disk_file) |
933 | 99381e3b | Agata Murawska | if disk_extension != disk_format:
|
934 | 99381e3b | Agata Murawska | logging.warning("Conversion of disk image to %s format, this may take"
|
935 | 99381e3b | Agata Murawska | " a while", disk_format)
|
936 | 99381e3b | Agata Murawska | |
937 | 99381e3b | Agata Murawska | new_disk_path = utils.GetClosedTempfile(suffix=".%s" % disk_format,
|
938 | 99381e3b | Agata Murawska | prefix=disk_name, dir=self.output_dir)
|
939 | 99381e3b | Agata Murawska | self.temp_file_manager.Add(new_disk_path)
|
940 | 99381e3b | Agata Murawska | args = [ |
941 | e68949b0 | Agata Murawska | constants.QEMUIMG_PATH, |
942 | 99381e3b | Agata Murawska | "convert",
|
943 | 99381e3b | Agata Murawska | "-O",
|
944 | 99381e3b | Agata Murawska | disk_format, |
945 | 99381e3b | Agata Murawska | disk_path, |
946 | 99381e3b | Agata Murawska | new_disk_path, |
947 | 99381e3b | Agata Murawska | ] |
948 | 99381e3b | Agata Murawska | run_result = utils.RunCmd(args, cwd=os.getcwd()) |
949 | 99381e3b | Agata Murawska | if run_result.failed:
|
950 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Convertion to %s failed, qemu-img output was" |
951 | 99381e3b | Agata Murawska | ": %s" % (disk_format, run_result.stderr))
|
952 | 99381e3b | Agata Murawska | return (".%s" % disk_format, new_disk_path) |
953 | 99381e3b | Agata Murawska | |
954 | 99381e3b | Agata Murawska | @staticmethod
|
955 | 99381e3b | Agata Murawska | def _GetDiskQemuInfo(disk_path, regexp): |
956 | 99381e3b | Agata Murawska | """Figures out some information of the disk using qemu-img.
|
957 | 99381e3b | Agata Murawska |
|
958 | 99381e3b | Agata Murawska | @type disk_path: string
|
959 | 99381e3b | Agata Murawska | @param disk_path: path to the disk we want to know the format of
|
960 | 99381e3b | Agata Murawska | @type regexp: string
|
961 | 99381e3b | Agata Murawska | @param regexp: string that has to be matched, it has to contain one group
|
962 | 99381e3b | Agata Murawska | @rtype: string
|
963 | 99381e3b | Agata Murawska | @return: disk format
|
964 | 99381e3b | Agata Murawska |
|
965 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: format information cannot be retrieved
|
966 | 99381e3b | Agata Murawska |
|
967 | 99381e3b | Agata Murawska | """
|
968 | a002ed79 | Agata Murawska | CheckQemuImg() |
969 | e68949b0 | Agata Murawska | args = [constants.QEMUIMG_PATH, "info", disk_path]
|
970 | 99381e3b | Agata Murawska | run_result = utils.RunCmd(args, cwd=os.getcwd()) |
971 | 99381e3b | Agata Murawska | if run_result.failed:
|
972 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Gathering info about the disk using qemu-img" |
973 | 99381e3b | Agata Murawska | " failed, output was: %s" % run_result.stderr)
|
974 | 99381e3b | Agata Murawska | result = run_result.output |
975 | 99381e3b | Agata Murawska | regexp = r"%s" % regexp
|
976 | 99381e3b | Agata Murawska | match = re.search(regexp, result) |
977 | 99381e3b | Agata Murawska | if match:
|
978 | 99381e3b | Agata Murawska | disk_format = match.group(1)
|
979 | 99381e3b | Agata Murawska | else:
|
980 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("No file information matching %s found in:" |
981 | 99381e3b | Agata Murawska | " %s" % (regexp, result))
|
982 | 99381e3b | Agata Murawska | return disk_format
|
983 | 99381e3b | Agata Murawska | |
984 | ced78a66 | Agata Murawska | def Parse(self): |
985 | ced78a66 | Agata Murawska | """Parses the data and creates a structure containing all required info.
|
986 | ced78a66 | Agata Murawska |
|
987 | ced78a66 | Agata Murawska | """
|
988 | ced78a66 | Agata Murawska | raise NotImplementedError() |
989 | ced78a66 | Agata Murawska | |
990 | ced78a66 | Agata Murawska | def Save(self): |
991 | ced78a66 | Agata Murawska | """Saves the gathered configuration in an apropriate format.
|
992 | ced78a66 | Agata Murawska |
|
993 | ced78a66 | Agata Murawska | """
|
994 | ced78a66 | Agata Murawska | raise NotImplementedError() |
995 | ced78a66 | Agata Murawska | |
996 | ced78a66 | Agata Murawska | def Cleanup(self): |
997 | ced78a66 | Agata Murawska | """Cleans the temporary directory, if one was created.
|
998 | ced78a66 | Agata Murawska |
|
999 | ced78a66 | Agata Murawska | """
|
1000 | ced78a66 | Agata Murawska | self.temp_file_manager.Cleanup()
|
1001 | ced78a66 | Agata Murawska | if self.temp_dir: |
1002 | ced78a66 | Agata Murawska | shutil.rmtree(self.temp_dir)
|
1003 | ced78a66 | Agata Murawska | self.temp_dir = None |
1004 | ced78a66 | Agata Murawska | |
1005 | ced78a66 | Agata Murawska | |
1006 | ced78a66 | Agata Murawska | class OVFImporter(Converter): |
1007 | 864cf6bf | Agata Murawska | """Converter from OVF to Ganeti config file.
|
1008 | 864cf6bf | Agata Murawska |
|
1009 | 864cf6bf | Agata Murawska | @type input_dir: string
|
1010 | 864cf6bf | Agata Murawska | @ivar input_dir: directory in which the .ovf file resides
|
1011 | 864cf6bf | Agata Murawska | @type output_dir: string
|
1012 | 864cf6bf | Agata Murawska | @ivar output_dir: directory to which the results of conversion shall be
|
1013 | 864cf6bf | Agata Murawska | written
|
1014 | 864cf6bf | Agata Murawska | @type input_path: string
|
1015 | 864cf6bf | Agata Murawska | @ivar input_path: complete path to the .ovf file
|
1016 | 864cf6bf | Agata Murawska | @type ovf_reader: L{OVFReader}
|
1017 | 864cf6bf | Agata Murawska | @ivar ovf_reader: OVF reader instance collects data from .ovf file
|
1018 | 99381e3b | Agata Murawska | @type results_name: string
|
1019 | 99381e3b | Agata Murawska | @ivar results_name: name of imported instance
|
1020 | 99381e3b | Agata Murawska | @type results_template: string
|
1021 | 99381e3b | Agata Murawska | @ivar results_template: disk template read from .ovf file or command line
|
1022 | 99381e3b | Agata Murawska | arguments
|
1023 | 7bde29b5 | Agata Murawska | @type results_hypervisor: dict
|
1024 | 7bde29b5 | Agata Murawska | @ivar results_hypervisor: hypervisor information gathered from .ovf file or
|
1025 | 7bde29b5 | Agata Murawska | command line arguments
|
1026 | 7bde29b5 | Agata Murawska | @type results_os: dict
|
1027 | 7bde29b5 | Agata Murawska | @ivar results_os: operating system information gathered from .ovf file or
|
1028 | 7bde29b5 | Agata Murawska | command line arguments
|
1029 | 7bde29b5 | Agata Murawska | @type results_backend: dict
|
1030 | 7bde29b5 | Agata Murawska | @ivar results_backend: backend information gathered from .ovf file or
|
1031 | 7bde29b5 | Agata Murawska | command line arguments
|
1032 | 7bde29b5 | Agata Murawska | @type results_tags: string
|
1033 | 7bde29b5 | Agata Murawska | @ivar results_tags: string containing instance-specific tags
|
1034 | 7bde29b5 | Agata Murawska | @type results_version: string
|
1035 | 7bde29b5 | Agata Murawska | @ivar results_version: version as required by Ganeti import
|
1036 | 24b9469d | Agata Murawska | @type results_network: dict
|
1037 | 24b9469d | Agata Murawska | @ivar results_network: network information gathered from .ovf file or command
|
1038 | 24b9469d | Agata Murawska | line arguments
|
1039 | 99381e3b | Agata Murawska | @type results_disk: dict
|
1040 | 99381e3b | Agata Murawska | @ivar results_disk: disk information gathered from .ovf file or command line
|
1041 | 99381e3b | Agata Murawska | arguments
|
1042 | 864cf6bf | Agata Murawska |
|
1043 | 864cf6bf | Agata Murawska | """
|
1044 | ced78a66 | Agata Murawska | def _ReadInputData(self, input_path): |
1045 | 864cf6bf | Agata Murawska | """Reads the data on which the conversion will take place.
|
1046 | 864cf6bf | Agata Murawska |
|
1047 | 864cf6bf | Agata Murawska | @type input_path: string
|
1048 | 864cf6bf | Agata Murawska | @param input_path: absolute path to the .ovf or .ova input file
|
1049 | 864cf6bf | Agata Murawska |
|
1050 | 864cf6bf | Agata Murawska | @raise errors.OpPrereqError: if input file is neither .ovf nor .ova
|
1051 | 864cf6bf | Agata Murawska |
|
1052 | 864cf6bf | Agata Murawska | """
|
1053 | 864cf6bf | Agata Murawska | (input_dir, input_file) = os.path.split(input_path) |
1054 | 864cf6bf | Agata Murawska | (_, input_extension) = os.path.splitext(input_file) |
1055 | 864cf6bf | Agata Murawska | |
1056 | 864cf6bf | Agata Murawska | if input_extension == OVF_EXT:
|
1057 | 864cf6bf | Agata Murawska | logging.info("%s file extension found, no unpacking necessary", OVF_EXT)
|
1058 | 864cf6bf | Agata Murawska | self.input_dir = input_dir
|
1059 | 864cf6bf | Agata Murawska | self.input_path = input_path
|
1060 | 864cf6bf | Agata Murawska | self.temp_dir = None |
1061 | 864cf6bf | Agata Murawska | elif input_extension == OVA_EXT:
|
1062 | 864cf6bf | Agata Murawska | logging.info("%s file extension found, proceeding to unpacking", OVA_EXT)
|
1063 | 864cf6bf | Agata Murawska | self._UnpackOVA(input_path)
|
1064 | 864cf6bf | Agata Murawska | else:
|
1065 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("Unknown file extension; expected %s or %s" |
1066 | 864cf6bf | Agata Murawska | " file" % (OVA_EXT, OVF_EXT))
|
1067 | 864cf6bf | Agata Murawska | assert ((input_extension == OVA_EXT and self.temp_dir) or |
1068 | 864cf6bf | Agata Murawska | (input_extension == OVF_EXT and not self.temp_dir)) |
1069 | 864cf6bf | Agata Murawska | assert self.input_dir in self.input_path |
1070 | 864cf6bf | Agata Murawska | |
1071 | 864cf6bf | Agata Murawska | if self.options.output_dir: |
1072 | 864cf6bf | Agata Murawska | self.output_dir = os.path.abspath(self.options.output_dir) |
1073 | 864cf6bf | Agata Murawska | if (os.path.commonprefix([constants.EXPORT_DIR, self.output_dir]) != |
1074 | 864cf6bf | Agata Murawska | constants.EXPORT_DIR): |
1075 | 864cf6bf | Agata Murawska | logging.warning("Export path is not under %s directory, import to"
|
1076 | 864cf6bf | Agata Murawska | " Ganeti using gnt-backup may fail",
|
1077 | 864cf6bf | Agata Murawska | constants.EXPORT_DIR) |
1078 | 864cf6bf | Agata Murawska | else:
|
1079 | 864cf6bf | Agata Murawska | self.output_dir = constants.EXPORT_DIR
|
1080 | 864cf6bf | Agata Murawska | |
1081 | 864cf6bf | Agata Murawska | self.ovf_reader = OVFReader(self.input_path) |
1082 | 864cf6bf | Agata Murawska | self.ovf_reader.VerifyManifest()
|
1083 | 864cf6bf | Agata Murawska | |
1084 | 864cf6bf | Agata Murawska | def _UnpackOVA(self, input_path): |
1085 | 864cf6bf | Agata Murawska | """Unpacks the .ova package into temporary directory.
|
1086 | 864cf6bf | Agata Murawska |
|
1087 | 864cf6bf | Agata Murawska | @type input_path: string
|
1088 | 864cf6bf | Agata Murawska | @param input_path: path to the .ova package file
|
1089 | 864cf6bf | Agata Murawska |
|
1090 | 864cf6bf | Agata Murawska | @raise errors.OpPrereqError: if file is not a proper tarball, one of the
|
1091 | 864cf6bf | Agata Murawska | files in the archive seem malicious (e.g. path starts with '../') or
|
1092 | 864cf6bf | Agata Murawska | .ova package does not contain .ovf file
|
1093 | 864cf6bf | Agata Murawska |
|
1094 | 864cf6bf | Agata Murawska | """
|
1095 | 864cf6bf | Agata Murawska | input_name = None
|
1096 | 864cf6bf | Agata Murawska | if not tarfile.is_tarfile(input_path): |
1097 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("The provided %s file is not a proper tar" |
1098 | 864cf6bf | Agata Murawska | " archive", OVA_EXT)
|
1099 | 864cf6bf | Agata Murawska | ova_content = tarfile.open(input_path) |
1100 | 864cf6bf | Agata Murawska | temp_dir = tempfile.mkdtemp() |
1101 | 864cf6bf | Agata Murawska | self.temp_dir = temp_dir
|
1102 | 864cf6bf | Agata Murawska | for file_name in ova_content.getnames(): |
1103 | 864cf6bf | Agata Murawska | file_normname = os.path.normpath(file_name) |
1104 | 864cf6bf | Agata Murawska | try:
|
1105 | 864cf6bf | Agata Murawska | utils.PathJoin(temp_dir, file_normname) |
1106 | 864cf6bf | Agata Murawska | except ValueError, err: |
1107 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("File %s inside %s package is not safe" % |
1108 | 864cf6bf | Agata Murawska | (file_name, OVA_EXT)) |
1109 | 864cf6bf | Agata Murawska | if file_name.endswith(OVF_EXT):
|
1110 | 864cf6bf | Agata Murawska | input_name = file_name |
1111 | 864cf6bf | Agata Murawska | if not input_name: |
1112 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("No %s file in %s package found" % |
1113 | 864cf6bf | Agata Murawska | (OVF_EXT, OVA_EXT)) |
1114 | 864cf6bf | Agata Murawska | logging.warning("Unpacking the %s archive, this may take a while",
|
1115 | 864cf6bf | Agata Murawska | input_path) |
1116 | 864cf6bf | Agata Murawska | self.input_dir = temp_dir
|
1117 | 864cf6bf | Agata Murawska | self.input_path = utils.PathJoin(self.temp_dir, input_name) |
1118 | 864cf6bf | Agata Murawska | try:
|
1119 | 864cf6bf | Agata Murawska | try:
|
1120 | 864cf6bf | Agata Murawska | extract = ova_content.extractall |
1121 | 864cf6bf | Agata Murawska | except AttributeError: |
1122 | 864cf6bf | Agata Murawska | # This is a prehistorical case of using python < 2.5
|
1123 | 864cf6bf | Agata Murawska | for member in ova_content.getmembers(): |
1124 | 864cf6bf | Agata Murawska | ova_content.extract(member, path=self.temp_dir)
|
1125 | 864cf6bf | Agata Murawska | else:
|
1126 | 864cf6bf | Agata Murawska | extract(self.temp_dir)
|
1127 | 864cf6bf | Agata Murawska | except tarfile.TarError, err:
|
1128 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("Error while extracting %s archive: %s" % |
1129 | 864cf6bf | Agata Murawska | (OVA_EXT, err)) |
1130 | 864cf6bf | Agata Murawska | logging.info("OVA package extracted to %s directory", self.temp_dir) |
1131 | ced78a66 | Agata Murawska | |
1132 | ced78a66 | Agata Murawska | def Parse(self): |
1133 | 99381e3b | Agata Murawska | """Parses the data and creates a structure containing all required info.
|
1134 | 99381e3b | Agata Murawska |
|
1135 | 99381e3b | Agata Murawska | The method reads the information given either as a command line option or as
|
1136 | 99381e3b | Agata Murawska | a part of the OVF description.
|
1137 | 99381e3b | Agata Murawska |
|
1138 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: if some required part of the description of
|
1139 | 99381e3b | Agata Murawska | virtual instance is missing or unable to create output directory
|
1140 | 99381e3b | Agata Murawska |
|
1141 | 99381e3b | Agata Murawska | """
|
1142 | 99381e3b | Agata Murawska | self.results_name = self._GetInfo("instance name", self.options.name, |
1143 | 99381e3b | Agata Murawska | self._ParseNameOptions, self.ovf_reader.GetInstanceName) |
1144 | 99381e3b | Agata Murawska | if not self.results_name: |
1145 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Name of instance not provided") |
1146 | 99381e3b | Agata Murawska | |
1147 | 99381e3b | Agata Murawska | self.output_dir = utils.PathJoin(self.output_dir, self.results_name) |
1148 | 99381e3b | Agata Murawska | try:
|
1149 | 99381e3b | Agata Murawska | utils.Makedirs(self.output_dir)
|
1150 | 99381e3b | Agata Murawska | except OSError, err: |
1151 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Failed to create directory %s: %s" % |
1152 | 99381e3b | Agata Murawska | (self.output_dir, err))
|
1153 | 99381e3b | Agata Murawska | |
1154 | 99381e3b | Agata Murawska | self.results_template = self._GetInfo("disk template", |
1155 | 99381e3b | Agata Murawska | self.options.disk_template, self._ParseTemplateOptions, |
1156 | 99381e3b | Agata Murawska | self.ovf_reader.GetDiskTemplate)
|
1157 | 99381e3b | Agata Murawska | if not self.results_template: |
1158 | 99381e3b | Agata Murawska | logging.info("Disk template not given")
|
1159 | 99381e3b | Agata Murawska | |
1160 | 7bde29b5 | Agata Murawska | self.results_hypervisor = self._GetInfo("hypervisor", |
1161 | 7bde29b5 | Agata Murawska | self.options.hypervisor, self._ParseHypervisorOptions, |
1162 | 7bde29b5 | Agata Murawska | self.ovf_reader.GetHypervisorData)
|
1163 | 7bde29b5 | Agata Murawska | assert self.results_hypervisor["hypervisor_name"] |
1164 | 7bde29b5 | Agata Murawska | if self.results_hypervisor["hypervisor_name"] == constants.VALUE_AUTO: |
1165 | 7bde29b5 | Agata Murawska | logging.debug("Default hypervisor settings from the cluster will be used")
|
1166 | 7bde29b5 | Agata Murawska | |
1167 | 7bde29b5 | Agata Murawska | self.results_os = self._GetInfo("OS", self.options.os, |
1168 | 7bde29b5 | Agata Murawska | self._ParseOSOptions, self.ovf_reader.GetOSData) |
1169 | 7bde29b5 | Agata Murawska | if not self.results_os.get("os_name"): |
1170 | 7bde29b5 | Agata Murawska | raise errors.OpPrereqError("OS name must be provided") |
1171 | 7bde29b5 | Agata Murawska | |
1172 | 7bde29b5 | Agata Murawska | self.results_backend = self._GetInfo("backend", self.options.beparams, |
1173 | 7bde29b5 | Agata Murawska | self._ParseBackendOptions, self.ovf_reader.GetBackendData) |
1174 | 7bde29b5 | Agata Murawska | assert self.results_backend.get("vcpus") |
1175 | 7bde29b5 | Agata Murawska | assert self.results_backend.get("memory") |
1176 | 7bde29b5 | Agata Murawska | assert self.results_backend.get("auto_balance") is not None |
1177 | 7bde29b5 | Agata Murawska | |
1178 | 7bde29b5 | Agata Murawska | self.results_tags = self._GetInfo("tags", self.options.tags, |
1179 | 7bde29b5 | Agata Murawska | self._ParseTags, self.ovf_reader.GetTagsData) |
1180 | 7bde29b5 | Agata Murawska | |
1181 | 7bde29b5 | Agata Murawska | ovf_version = self.ovf_reader.GetVersionData()
|
1182 | 7bde29b5 | Agata Murawska | if ovf_version:
|
1183 | 7bde29b5 | Agata Murawska | self.results_version = ovf_version
|
1184 | 7bde29b5 | Agata Murawska | else:
|
1185 | 7bde29b5 | Agata Murawska | self.results_version = constants.EXPORT_VERSION
|
1186 | 7bde29b5 | Agata Murawska | |
1187 | 24b9469d | Agata Murawska | self.results_network = self._GetInfo("network", self.options.nics, |
1188 | 24b9469d | Agata Murawska | self._ParseNicOptions, self.ovf_reader.GetNetworkData, |
1189 | 24b9469d | Agata Murawska | ignore_test=self.options.no_nics)
|
1190 | 24b9469d | Agata Murawska | |
1191 | 99381e3b | Agata Murawska | self.results_disk = self._GetInfo("disk", self.options.disks, |
1192 | 99381e3b | Agata Murawska | self._ParseDiskOptions, self._GetDiskInfo, |
1193 | 99381e3b | Agata Murawska | ignore_test=self.results_template == constants.DT_DISKLESS)
|
1194 | 99381e3b | Agata Murawska | |
1195 | 24b9469d | Agata Murawska | if not self.results_disk and not self.results_network: |
1196 | 24b9469d | Agata Murawska | raise errors.OpPrereqError("Either disk specification or network" |
1197 | 24b9469d | Agata Murawska | " description must be present")
|
1198 | 24b9469d | Agata Murawska | |
1199 | 99381e3b | Agata Murawska | @staticmethod
|
1200 | 99381e3b | Agata Murawska | def _GetInfo(name, cmd_arg, cmd_function, nocmd_function, |
1201 | 99381e3b | Agata Murawska | ignore_test=False):
|
1202 | 99381e3b | Agata Murawska | """Get information about some section - e.g. disk, network, hypervisor.
|
1203 | 99381e3b | Agata Murawska |
|
1204 | 99381e3b | Agata Murawska | @type name: string
|
1205 | 99381e3b | Agata Murawska | @param name: name of the section
|
1206 | 99381e3b | Agata Murawska | @type cmd_arg: dict
|
1207 | 99381e3b | Agata Murawska | @param cmd_arg: command line argument specific for section 'name'
|
1208 | 99381e3b | Agata Murawska | @type cmd_function: callable
|
1209 | 99381e3b | Agata Murawska | @param cmd_function: function to call if 'cmd_args' exists
|
1210 | 99381e3b | Agata Murawska | @type nocmd_function: callable
|
1211 | 99381e3b | Agata Murawska | @param nocmd_function: function to call if 'cmd_args' is not there
|
1212 | 99381e3b | Agata Murawska |
|
1213 | 99381e3b | Agata Murawska | """
|
1214 | 99381e3b | Agata Murawska | if ignore_test:
|
1215 | 99381e3b | Agata Murawska | logging.info("Information for %s will be ignored", name)
|
1216 | 99381e3b | Agata Murawska | return {}
|
1217 | 99381e3b | Agata Murawska | if cmd_arg:
|
1218 | 99381e3b | Agata Murawska | logging.info("Information for %s will be parsed from command line", name)
|
1219 | 99381e3b | Agata Murawska | results = cmd_function() |
1220 | 99381e3b | Agata Murawska | else:
|
1221 | 99381e3b | Agata Murawska | logging.info("Information for %s will be parsed from %s file",
|
1222 | 99381e3b | Agata Murawska | name, OVF_EXT) |
1223 | 99381e3b | Agata Murawska | results = nocmd_function() |
1224 | 99381e3b | Agata Murawska | logging.info("Options for %s were succesfully read", name)
|
1225 | 99381e3b | Agata Murawska | return results
|
1226 | 99381e3b | Agata Murawska | |
1227 | 99381e3b | Agata Murawska | def _ParseNameOptions(self): |
1228 | 99381e3b | Agata Murawska | """Returns name if one was given in command line.
|
1229 | 99381e3b | Agata Murawska |
|
1230 | 99381e3b | Agata Murawska | @rtype: string
|
1231 | 99381e3b | Agata Murawska | @return: name of an instance
|
1232 | 99381e3b | Agata Murawska |
|
1233 | 99381e3b | Agata Murawska | """
|
1234 | 99381e3b | Agata Murawska | return self.options.name |
1235 | 99381e3b | Agata Murawska | |
1236 | 99381e3b | Agata Murawska | def _ParseTemplateOptions(self): |
1237 | 99381e3b | Agata Murawska | """Returns disk template if one was given in command line.
|
1238 | 99381e3b | Agata Murawska |
|
1239 | 99381e3b | Agata Murawska | @rtype: string
|
1240 | 99381e3b | Agata Murawska | @return: disk template name
|
1241 | 99381e3b | Agata Murawska |
|
1242 | 99381e3b | Agata Murawska | """
|
1243 | 99381e3b | Agata Murawska | return self.options.disk_template |
1244 | 99381e3b | Agata Murawska | |
1245 | 7bde29b5 | Agata Murawska | def _ParseHypervisorOptions(self): |
1246 | 7bde29b5 | Agata Murawska | """Parses hypervisor options given in a command line.
|
1247 | 7bde29b5 | Agata Murawska |
|
1248 | 7bde29b5 | Agata Murawska | @rtype: dict
|
1249 | 7bde29b5 | Agata Murawska | @return: dictionary containing name of the chosen hypervisor and all the
|
1250 | 7bde29b5 | Agata Murawska | options
|
1251 | 7bde29b5 | Agata Murawska |
|
1252 | 7bde29b5 | Agata Murawska | """
|
1253 | 7bde29b5 | Agata Murawska | assert type(self.options.hypervisor) is tuple |
1254 | 7bde29b5 | Agata Murawska | assert len(self.options.hypervisor) == 2 |
1255 | 7bde29b5 | Agata Murawska | results = {} |
1256 | 7bde29b5 | Agata Murawska | if self.options.hypervisor[0]: |
1257 | 7bde29b5 | Agata Murawska | results["hypervisor_name"] = self.options.hypervisor[0] |
1258 | 7bde29b5 | Agata Murawska | else:
|
1259 | 7bde29b5 | Agata Murawska | results["hypervisor_name"] = constants.VALUE_AUTO
|
1260 | 7bde29b5 | Agata Murawska | results.update(self.options.hypervisor[1]) |
1261 | 7bde29b5 | Agata Murawska | return results
|
1262 | 7bde29b5 | Agata Murawska | |
1263 | 7bde29b5 | Agata Murawska | def _ParseOSOptions(self): |
1264 | 7bde29b5 | Agata Murawska | """Parses OS options given in command line.
|
1265 | 7bde29b5 | Agata Murawska |
|
1266 | 7bde29b5 | Agata Murawska | @rtype: dict
|
1267 | 7bde29b5 | Agata Murawska | @return: dictionary containing name of chosen OS and all its options
|
1268 | 7bde29b5 | Agata Murawska |
|
1269 | 7bde29b5 | Agata Murawska | """
|
1270 | 7bde29b5 | Agata Murawska | assert self.options.os |
1271 | 7bde29b5 | Agata Murawska | results = {} |
1272 | 7bde29b5 | Agata Murawska | results["os_name"] = self.options.os |
1273 | 7bde29b5 | Agata Murawska | results.update(self.options.osparams)
|
1274 | 7bde29b5 | Agata Murawska | return results
|
1275 | 7bde29b5 | Agata Murawska | |
1276 | 7bde29b5 | Agata Murawska | def _ParseBackendOptions(self): |
1277 | 7bde29b5 | Agata Murawska | """Parses backend options given in command line.
|
1278 | 7bde29b5 | Agata Murawska |
|
1279 | 7bde29b5 | Agata Murawska | @rtype: dict
|
1280 | 7bde29b5 | Agata Murawska | @return: dictionary containing vcpus, memory and auto-balance options
|
1281 | 7bde29b5 | Agata Murawska |
|
1282 | 7bde29b5 | Agata Murawska | """
|
1283 | 7bde29b5 | Agata Murawska | assert self.options.beparams |
1284 | 7bde29b5 | Agata Murawska | backend = {} |
1285 | 7bde29b5 | Agata Murawska | backend.update(self.options.beparams)
|
1286 | 7bde29b5 | Agata Murawska | must_contain = ["vcpus", "memory", "auto_balance"] |
1287 | 7bde29b5 | Agata Murawska | for element in must_contain: |
1288 | 7bde29b5 | Agata Murawska | if backend.get(element) is None: |
1289 | 7bde29b5 | Agata Murawska | backend[element] = constants.VALUE_AUTO |
1290 | 7bde29b5 | Agata Murawska | return backend
|
1291 | 7bde29b5 | Agata Murawska | |
1292 | 7bde29b5 | Agata Murawska | def _ParseTags(self): |
1293 | 7bde29b5 | Agata Murawska | """Returns tags list given in command line.
|
1294 | 7bde29b5 | Agata Murawska |
|
1295 | 7bde29b5 | Agata Murawska | @rtype: string
|
1296 | 7bde29b5 | Agata Murawska | @return: string containing comma-separated tags
|
1297 | 7bde29b5 | Agata Murawska |
|
1298 | 7bde29b5 | Agata Murawska | """
|
1299 | 7bde29b5 | Agata Murawska | return self.options.tags |
1300 | 7bde29b5 | Agata Murawska | |
1301 | 24b9469d | Agata Murawska | def _ParseNicOptions(self): |
1302 | 24b9469d | Agata Murawska | """Parses network options given in a command line or as a dictionary.
|
1303 | 24b9469d | Agata Murawska |
|
1304 | 24b9469d | Agata Murawska | @rtype: dict
|
1305 | 24b9469d | Agata Murawska | @return: dictionary of network-related options
|
1306 | 24b9469d | Agata Murawska |
|
1307 | 24b9469d | Agata Murawska | """
|
1308 | 24b9469d | Agata Murawska | assert self.options.nics |
1309 | 24b9469d | Agata Murawska | results = {} |
1310 | 24b9469d | Agata Murawska | for (nic_id, nic_desc) in self.options.nics: |
1311 | 24b9469d | Agata Murawska | results["nic%s_mode" % nic_id] = \
|
1312 | 24b9469d | Agata Murawska | nic_desc.get("mode", constants.VALUE_AUTO)
|
1313 | 24b9469d | Agata Murawska | results["nic%s_mac" % nic_id] = nic_desc.get("mac", constants.VALUE_AUTO) |
1314 | 24b9469d | Agata Murawska | results["nic%s_link" % nic_id] = \
|
1315 | 24b9469d | Agata Murawska | nic_desc.get("link", constants.VALUE_AUTO)
|
1316 | 24b9469d | Agata Murawska | if nic_desc.get("mode") == "bridged": |
1317 | 24b9469d | Agata Murawska | results["nic%s_ip" % nic_id] = constants.VALUE_NONE
|
1318 | 24b9469d | Agata Murawska | else:
|
1319 | 24b9469d | Agata Murawska | results["nic%s_ip" % nic_id] = constants.VALUE_AUTO
|
1320 | 24b9469d | Agata Murawska | results["nic_count"] = str(len(self.options.nics)) |
1321 | 24b9469d | Agata Murawska | return results
|
1322 | 24b9469d | Agata Murawska | |
1323 | 99381e3b | Agata Murawska | def _ParseDiskOptions(self): |
1324 | 99381e3b | Agata Murawska | """Parses disk options given in a command line.
|
1325 | 99381e3b | Agata Murawska |
|
1326 | 99381e3b | Agata Murawska | @rtype: dict
|
1327 | 99381e3b | Agata Murawska | @return: dictionary of disk-related options
|
1328 | 99381e3b | Agata Murawska |
|
1329 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: disk description does not contain size
|
1330 | 99381e3b | Agata Murawska | information or size information is invalid or creation failed
|
1331 | 99381e3b | Agata Murawska |
|
1332 | 99381e3b | Agata Murawska | """
|
1333 | a002ed79 | Agata Murawska | CheckQemuImg() |
1334 | 99381e3b | Agata Murawska | assert self.options.disks |
1335 | 99381e3b | Agata Murawska | results = {} |
1336 | 99381e3b | Agata Murawska | for (disk_id, disk_desc) in self.options.disks: |
1337 | 99381e3b | Agata Murawska | results["disk%s_ivname" % disk_id] = "disk/%s" % disk_id |
1338 | 99381e3b | Agata Murawska | if disk_desc.get("size"): |
1339 | 99381e3b | Agata Murawska | try:
|
1340 | 99381e3b | Agata Murawska | disk_size = utils.ParseUnit(disk_desc["size"])
|
1341 | 99381e3b | Agata Murawska | except ValueError: |
1342 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Invalid disk size for disk %s: %s" % |
1343 | 99381e3b | Agata Murawska | (disk_id, disk_desc["size"]))
|
1344 | 99381e3b | Agata Murawska | new_path = utils.PathJoin(self.output_dir, str(disk_id)) |
1345 | 99381e3b | Agata Murawska | args = [ |
1346 | e68949b0 | Agata Murawska | constants.QEMUIMG_PATH, |
1347 | 99381e3b | Agata Murawska | "create",
|
1348 | 99381e3b | Agata Murawska | "-f",
|
1349 | 99381e3b | Agata Murawska | "raw",
|
1350 | 99381e3b | Agata Murawska | new_path, |
1351 | 99381e3b | Agata Murawska | disk_size, |
1352 | 99381e3b | Agata Murawska | ] |
1353 | 99381e3b | Agata Murawska | run_result = utils.RunCmd(args) |
1354 | 99381e3b | Agata Murawska | if run_result.failed:
|
1355 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Creation of disk %s failed, output was:" |
1356 | 99381e3b | Agata Murawska | " %s" % (new_path, run_result.stderr))
|
1357 | 99381e3b | Agata Murawska | results["disk%s_size" % disk_id] = str(disk_size) |
1358 | 99381e3b | Agata Murawska | results["disk%s_dump" % disk_id] = "disk%s.raw" % disk_id |
1359 | 99381e3b | Agata Murawska | else:
|
1360 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Disks created for import must have their" |
1361 | 99381e3b | Agata Murawska | " size specified")
|
1362 | 99381e3b | Agata Murawska | results["disk_count"] = str(len(self.options.disks)) |
1363 | 99381e3b | Agata Murawska | return results
|
1364 | 99381e3b | Agata Murawska | |
1365 | 99381e3b | Agata Murawska | def _GetDiskInfo(self): |
1366 | 99381e3b | Agata Murawska | """Gathers information about disks used by instance, perfomes conversion.
|
1367 | 99381e3b | Agata Murawska |
|
1368 | 99381e3b | Agata Murawska | @rtype: dict
|
1369 | 99381e3b | Agata Murawska | @return: dictionary of disk-related options
|
1370 | 99381e3b | Agata Murawska |
|
1371 | 99381e3b | Agata Murawska | @raise errors.OpPrereqError: disk is not in the same directory as .ovf file
|
1372 | 99381e3b | Agata Murawska |
|
1373 | 99381e3b | Agata Murawska | """
|
1374 | 99381e3b | Agata Murawska | results = {} |
1375 | 99381e3b | Agata Murawska | disks_list = self.ovf_reader.GetDisksNames()
|
1376 | 99381e3b | Agata Murawska | for (counter, (disk_name, disk_compression)) in enumerate(disks_list): |
1377 | 99381e3b | Agata Murawska | if os.path.dirname(disk_name):
|
1378 | 99381e3b | Agata Murawska | raise errors.OpPrereqError("Disks are not allowed to have absolute" |
1379 | 99381e3b | Agata Murawska | " paths or paths outside main OVF directory")
|
1380 | 99381e3b | Agata Murawska | disk, _ = os.path.splitext(disk_name) |
1381 | 99381e3b | Agata Murawska | disk_path = utils.PathJoin(self.input_dir, disk_name)
|
1382 | fa337742 | Agata Murawska | if disk_compression not in NO_COMPRESSION: |
1383 | 99381e3b | Agata Murawska | _, disk_path = self._CompressDisk(disk_path, disk_compression,
|
1384 | 99381e3b | Agata Murawska | DECOMPRESS) |
1385 | 99381e3b | Agata Murawska | disk, _ = os.path.splitext(disk) |
1386 | 99381e3b | Agata Murawska | if self._GetDiskQemuInfo(disk_path, "file format: (\S+)") != "raw": |
1387 | 99381e3b | Agata Murawska | logging.info("Conversion to raw format is required")
|
1388 | 99381e3b | Agata Murawska | ext, new_disk_path = self._ConvertDisk("raw", disk_path) |
1389 | 99381e3b | Agata Murawska | |
1390 | 99381e3b | Agata Murawska | final_disk_path = LinkFile(new_disk_path, prefix=disk, suffix=ext, |
1391 | 99381e3b | Agata Murawska | directory=self.output_dir)
|
1392 | 99381e3b | Agata Murawska | final_name = os.path.basename(final_disk_path) |
1393 | 99381e3b | Agata Murawska | disk_size = os.path.getsize(final_disk_path) / (1024 * 1024) |
1394 | 99381e3b | Agata Murawska | results["disk%s_dump" % counter] = final_name
|
1395 | 99381e3b | Agata Murawska | results["disk%s_size" % counter] = str(disk_size) |
1396 | 99381e3b | Agata Murawska | results["disk%s_ivname" % counter] = "disk/%s" % str(counter) |
1397 | 99381e3b | Agata Murawska | if disks_list:
|
1398 | 99381e3b | Agata Murawska | results["disk_count"] = str(len(disks_list)) |
1399 | 99381e3b | Agata Murawska | return results
|
1400 | ced78a66 | Agata Murawska | |
1401 | ced78a66 | Agata Murawska | def Save(self): |
1402 | 864cf6bf | Agata Murawska | """Saves all the gathered information in a constant.EXPORT_CONF_FILE file.
|
1403 | 864cf6bf | Agata Murawska |
|
1404 | 864cf6bf | Agata Murawska | @raise errors.OpPrereqError: when saving to config file failed
|
1405 | 864cf6bf | Agata Murawska |
|
1406 | 864cf6bf | Agata Murawska | """
|
1407 | 864cf6bf | Agata Murawska | logging.info("Conversion was succesfull, saving %s in %s directory",
|
1408 | 864cf6bf | Agata Murawska | constants.EXPORT_CONF_FILE, self.output_dir)
|
1409 | 864cf6bf | Agata Murawska | results = { |
1410 | 864cf6bf | Agata Murawska | constants.INISECT_INS: {}, |
1411 | 864cf6bf | Agata Murawska | constants.INISECT_BEP: {}, |
1412 | 864cf6bf | Agata Murawska | constants.INISECT_EXP: {}, |
1413 | 864cf6bf | Agata Murawska | constants.INISECT_OSP: {}, |
1414 | 864cf6bf | Agata Murawska | constants.INISECT_HYP: {}, |
1415 | 864cf6bf | Agata Murawska | } |
1416 | 864cf6bf | Agata Murawska | |
1417 | 864cf6bf | Agata Murawska | results[constants.INISECT_INS].update(self.results_disk)
|
1418 | 24b9469d | Agata Murawska | results[constants.INISECT_INS].update(self.results_network)
|
1419 | 7bde29b5 | Agata Murawska | results[constants.INISECT_INS]["hypervisor"] = \
|
1420 | 7bde29b5 | Agata Murawska | self.results_hypervisor["hypervisor_name"] |
1421 | 864cf6bf | Agata Murawska | results[constants.INISECT_INS]["name"] = self.results_name |
1422 | 864cf6bf | Agata Murawska | if self.results_template: |
1423 | 864cf6bf | Agata Murawska | results[constants.INISECT_INS]["disk_template"] = self.results_template |
1424 | 7bde29b5 | Agata Murawska | if self.results_tags: |
1425 | 7bde29b5 | Agata Murawska | results[constants.INISECT_INS]["tags"] = self.results_tags |
1426 | 7bde29b5 | Agata Murawska | |
1427 | 7bde29b5 | Agata Murawska | results[constants.INISECT_BEP].update(self.results_backend)
|
1428 | 7bde29b5 | Agata Murawska | |
1429 | 7bde29b5 | Agata Murawska | results[constants.INISECT_EXP]["os"] = self.results_os["os_name"] |
1430 | 7bde29b5 | Agata Murawska | results[constants.INISECT_EXP]["version"] = self.results_version |
1431 | 7bde29b5 | Agata Murawska | |
1432 | 7bde29b5 | Agata Murawska | del self.results_os["os_name"] |
1433 | 7bde29b5 | Agata Murawska | results[constants.INISECT_OSP].update(self.results_os)
|
1434 | 7bde29b5 | Agata Murawska | |
1435 | 7bde29b5 | Agata Murawska | del self.results_hypervisor["hypervisor_name"] |
1436 | 7bde29b5 | Agata Murawska | results[constants.INISECT_HYP].update(self.results_hypervisor)
|
1437 | 864cf6bf | Agata Murawska | |
1438 | 864cf6bf | Agata Murawska | output_file_name = utils.PathJoin(self.output_dir,
|
1439 | 864cf6bf | Agata Murawska | constants.EXPORT_CONF_FILE) |
1440 | 864cf6bf | Agata Murawska | |
1441 | 864cf6bf | Agata Murawska | output = [] |
1442 | 864cf6bf | Agata Murawska | for section, options in results.iteritems(): |
1443 | 864cf6bf | Agata Murawska | output.append("[%s]" % section)
|
1444 | 864cf6bf | Agata Murawska | for name, value in options.iteritems(): |
1445 | 99381e3b | Agata Murawska | if value is None: |
1446 | 99381e3b | Agata Murawska | value = ""
|
1447 | 864cf6bf | Agata Murawska | output.append("%s = %s" % (name, value))
|
1448 | 864cf6bf | Agata Murawska | output.append("")
|
1449 | 864cf6bf | Agata Murawska | output_contents = "\n".join(output)
|
1450 | 864cf6bf | Agata Murawska | |
1451 | 864cf6bf | Agata Murawska | try:
|
1452 | 864cf6bf | Agata Murawska | utils.WriteFile(output_file_name, data=output_contents) |
1453 | 864cf6bf | Agata Murawska | except errors.ProgrammerError, err:
|
1454 | 864cf6bf | Agata Murawska | raise errors.OpPrereqError("Saving the config file failed: %s" % err) |
1455 | 864cf6bf | Agata Murawska | |
1456 | 864cf6bf | Agata Murawska | self.Cleanup()
|
1457 | ced78a66 | Agata Murawska | |
1458 | ced78a66 | Agata Murawska | |
1459 | 0963b26a | Agata Murawska | class ConfigParserWithDefaults(ConfigParser.SafeConfigParser): |
1460 | 0963b26a | Agata Murawska | """This is just a wrapper on SafeConfigParser, that uses default values
|
1461 | 0963b26a | Agata Murawska |
|
1462 | 0963b26a | Agata Murawska | """
|
1463 | 0963b26a | Agata Murawska | def get(self, section, options, raw=None, vars=None): # pylint: disable=W0622 |
1464 | 0963b26a | Agata Murawska | try:
|
1465 | 0963b26a | Agata Murawska | result = ConfigParser.SafeConfigParser.get(self, section, options, \
|
1466 | 0963b26a | Agata Murawska | raw=raw, vars=vars)
|
1467 | 0963b26a | Agata Murawska | except ConfigParser.NoOptionError:
|
1468 | 0963b26a | Agata Murawska | result = None
|
1469 | 0963b26a | Agata Murawska | return result
|
1470 | 0963b26a | Agata Murawska | |
1471 | 0963b26a | Agata Murawska | def getint(self, section, options): |
1472 | 0963b26a | Agata Murawska | try:
|
1473 | 0963b26a | Agata Murawska | result = ConfigParser.SafeConfigParser.get(self, section, options)
|
1474 | 0963b26a | Agata Murawska | except ConfigParser.NoOptionError:
|
1475 | 0963b26a | Agata Murawska | result = 0
|
1476 | 0963b26a | Agata Murawska | return int(result) |
1477 | 0963b26a | Agata Murawska | |
1478 | 0963b26a | Agata Murawska | |
1479 | ced78a66 | Agata Murawska | class OVFExporter(Converter): |
1480 | 0963b26a | Agata Murawska | """Converter from Ganeti config file to OVF
|
1481 | 0963b26a | Agata Murawska |
|
1482 | 0963b26a | Agata Murawska | @type input_dir: string
|
1483 | 0963b26a | Agata Murawska | @ivar input_dir: directory in which the config.ini file resides
|
1484 | 0963b26a | Agata Murawska | @type output_dir: string
|
1485 | 0963b26a | Agata Murawska | @ivar output_dir: directory to which the results of conversion shall be
|
1486 | 0963b26a | Agata Murawska | written
|
1487 | 0963b26a | Agata Murawska | @type packed_dir: string
|
1488 | 0963b26a | Agata Murawska | @ivar packed_dir: if we want OVA package, this points to the real (i.e. not
|
1489 | 0963b26a | Agata Murawska | temp) output directory
|
1490 | 0963b26a | Agata Murawska | @type input_path: string
|
1491 | 0963b26a | Agata Murawska | @ivar input_path: complete path to the config.ini file
|
1492 | 0963b26a | Agata Murawska | @type output_path: string
|
1493 | 0963b26a | Agata Murawska | @ivar output_path: complete path to .ovf file
|
1494 | 0963b26a | Agata Murawska | @type config_parser: L{ConfigParserWithDefaults}
|
1495 | 0963b26a | Agata Murawska | @ivar config_parser: parser for the config.ini file
|
1496 | 7432d332 | Agata Murawska | @type reference_files: list
|
1497 | 7432d332 | Agata Murawska | @ivar reference_files: files referenced in the ovf file
|
1498 | b179ce72 | Agata Murawska | @type results_disk: list
|
1499 | b179ce72 | Agata Murawska | @ivar results_disk: list of dictionaries of disk options from config.ini
|
1500 | b179ce72 | Agata Murawska | @type results_network: list
|
1501 | b179ce72 | Agata Murawska | @ivar results_network: list of dictionaries of network options form config.ini
|
1502 | 0963b26a | Agata Murawska | @type results_name: string
|
1503 | 0963b26a | Agata Murawska | @ivar results_name: name of the instance
|
1504 | b179ce72 | Agata Murawska | @type results_vcpus: string
|
1505 | b179ce72 | Agata Murawska | @ivar results_vcpus: number of VCPUs
|
1506 | b179ce72 | Agata Murawska | @type results_memory: string
|
1507 | b179ce72 | Agata Murawska | @ivar results_memory: RAM memory in MB
|
1508 | b179ce72 | Agata Murawska | @type results_ganeti: dict
|
1509 | b179ce72 | Agata Murawska | @ivar results_ganeti: dictionary of Ganeti-specific options from config.ini
|
1510 | 0963b26a | Agata Murawska |
|
1511 | 0963b26a | Agata Murawska | """
|
1512 | ced78a66 | Agata Murawska | def _ReadInputData(self, input_path): |
1513 | 0963b26a | Agata Murawska | """Reads the data on which the conversion will take place.
|
1514 | 0963b26a | Agata Murawska |
|
1515 | 0963b26a | Agata Murawska | @type input_path: string
|
1516 | 0963b26a | Agata Murawska | @param input_path: absolute path to the config.ini input file
|
1517 | 0963b26a | Agata Murawska |
|
1518 | 0963b26a | Agata Murawska | @raise errors.OpPrereqError: error when reading the config file
|
1519 | 0963b26a | Agata Murawska |
|
1520 | 0963b26a | Agata Murawska | """
|
1521 | 0963b26a | Agata Murawska | input_dir = os.path.dirname(input_path) |
1522 | 0963b26a | Agata Murawska | self.input_path = input_path
|
1523 | 0963b26a | Agata Murawska | self.input_dir = input_dir
|
1524 | 0963b26a | Agata Murawska | if self.options.output_dir: |
1525 | 0963b26a | Agata Murawska | self.output_dir = os.path.abspath(self.options.output_dir) |
1526 | 0963b26a | Agata Murawska | else:
|
1527 | 0963b26a | Agata Murawska | self.output_dir = input_dir
|
1528 | 0963b26a | Agata Murawska | self.config_parser = ConfigParserWithDefaults()
|
1529 | 0963b26a | Agata Murawska | logging.info("Reading configuration from %s file", input_path)
|
1530 | 0963b26a | Agata Murawska | try:
|
1531 | 0963b26a | Agata Murawska | self.config_parser.read(input_path)
|
1532 | 0963b26a | Agata Murawska | except ConfigParser.MissingSectionHeaderError, err:
|
1533 | 0963b26a | Agata Murawska | raise errors.OpPrereqError("Error when trying to read %s: %s" % |
1534 | 0963b26a | Agata Murawska | (input_path, err)) |
1535 | 0963b26a | Agata Murawska | if self.options.ova_package: |
1536 | 0963b26a | Agata Murawska | self.temp_dir = tempfile.mkdtemp()
|
1537 | 0963b26a | Agata Murawska | self.packed_dir = self.output_dir |
1538 | 0963b26a | Agata Murawska | self.output_dir = self.temp_dir |
1539 | 0963b26a | Agata Murawska | |
1540 | 0963b26a | Agata Murawska | self.ovf_writer = OVFWriter(not self.options.ext_usage) |
1541 | 0963b26a | Agata Murawska | |
1542 | 0963b26a | Agata Murawska | def _ParseName(self): |
1543 | 0963b26a | Agata Murawska | """Parses name from command line options or config file.
|
1544 | 0963b26a | Agata Murawska |
|
1545 | 0963b26a | Agata Murawska | @rtype: string
|
1546 | 0963b26a | Agata Murawska | @return: name of Ganeti instance
|
1547 | 0963b26a | Agata Murawska |
|
1548 | 0963b26a | Agata Murawska | @raise errors.OpPrereqError: if name of the instance is not provided
|
1549 | 0963b26a | Agata Murawska |
|
1550 | 0963b26a | Agata Murawska | """
|
1551 | 0963b26a | Agata Murawska | if self.options.name: |
1552 | 0963b26a | Agata Murawska | name = self.options.name
|
1553 | 0963b26a | Agata Murawska | else:
|
1554 | 0963b26a | Agata Murawska | name = self.config_parser.get(constants.INISECT_INS, NAME)
|
1555 | 0963b26a | Agata Murawska | if name is None: |
1556 | 0963b26a | Agata Murawska | raise errors.OpPrereqError("No instance name found") |
1557 | 0963b26a | Agata Murawska | return name
|
1558 | ced78a66 | Agata Murawska | |
1559 | b179ce72 | Agata Murawska | def _ParseVCPUs(self): |
1560 | b179ce72 | Agata Murawska | """Parses vcpus number from config file.
|
1561 | b179ce72 | Agata Murawska |
|
1562 | b179ce72 | Agata Murawska | @rtype: int
|
1563 | b179ce72 | Agata Murawska | @return: number of virtual CPUs
|
1564 | b179ce72 | Agata Murawska |
|
1565 | b179ce72 | Agata Murawska | @raise errors.OpPrereqError: if number of VCPUs equals 0
|
1566 | b179ce72 | Agata Murawska |
|
1567 | b179ce72 | Agata Murawska | """
|
1568 | b179ce72 | Agata Murawska | vcpus = self.config_parser.getint(constants.INISECT_BEP, VCPUS)
|
1569 | b179ce72 | Agata Murawska | if vcpus == 0: |
1570 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("No CPU information found") |
1571 | b179ce72 | Agata Murawska | return vcpus
|
1572 | b179ce72 | Agata Murawska | |
1573 | b179ce72 | Agata Murawska | def _ParseMemory(self): |
1574 | b179ce72 | Agata Murawska | """Parses vcpus number from config file.
|
1575 | b179ce72 | Agata Murawska |
|
1576 | b179ce72 | Agata Murawska | @rtype: int
|
1577 | b179ce72 | Agata Murawska | @return: amount of memory in MB
|
1578 | b179ce72 | Agata Murawska |
|
1579 | b179ce72 | Agata Murawska | @raise errors.OpPrereqError: if amount of memory equals 0
|
1580 | b179ce72 | Agata Murawska |
|
1581 | b179ce72 | Agata Murawska | """
|
1582 | b179ce72 | Agata Murawska | memory = self.config_parser.getint(constants.INISECT_BEP, MEMORY)
|
1583 | b179ce72 | Agata Murawska | if memory == 0: |
1584 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("No memory information found") |
1585 | b179ce72 | Agata Murawska | return memory
|
1586 | b179ce72 | Agata Murawska | |
1587 | b179ce72 | Agata Murawska | def _ParseGaneti(self): |
1588 | b179ce72 | Agata Murawska | """Parses Ganeti data from config file.
|
1589 | b179ce72 | Agata Murawska |
|
1590 | b179ce72 | Agata Murawska | @rtype: dictionary
|
1591 | b179ce72 | Agata Murawska | @return: dictionary of Ganeti-specific options
|
1592 | b179ce72 | Agata Murawska |
|
1593 | b179ce72 | Agata Murawska | """
|
1594 | b179ce72 | Agata Murawska | results = {} |
1595 | b179ce72 | Agata Murawska | # hypervisor
|
1596 | b179ce72 | Agata Murawska | results["hypervisor"] = {}
|
1597 | b179ce72 | Agata Murawska | hyp_name = self.config_parser.get(constants.INISECT_INS, HYPERV)
|
1598 | b179ce72 | Agata Murawska | if hyp_name is None: |
1599 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("No hypervisor information found") |
1600 | b179ce72 | Agata Murawska | results["hypervisor"]["name"] = hyp_name |
1601 | b179ce72 | Agata Murawska | pairs = self.config_parser.items(constants.INISECT_HYP)
|
1602 | b179ce72 | Agata Murawska | for (name, value) in pairs: |
1603 | b179ce72 | Agata Murawska | results["hypervisor"][name] = value
|
1604 | b179ce72 | Agata Murawska | # os
|
1605 | b179ce72 | Agata Murawska | results["os"] = {}
|
1606 | b179ce72 | Agata Murawska | os_name = self.config_parser.get(constants.INISECT_EXP, OS)
|
1607 | b179ce72 | Agata Murawska | if os_name is None: |
1608 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("No operating system information found") |
1609 | b179ce72 | Agata Murawska | results["os"]["name"] = os_name |
1610 | b179ce72 | Agata Murawska | pairs = self.config_parser.items(constants.INISECT_OSP)
|
1611 | b179ce72 | Agata Murawska | for (name, value) in pairs: |
1612 | b179ce72 | Agata Murawska | results["os"][name] = value
|
1613 | b179ce72 | Agata Murawska | # other
|
1614 | b179ce72 | Agata Murawska | others = [ |
1615 | b179ce72 | Agata Murawska | (constants.INISECT_INS, DISK_TEMPLATE, "disk_template"),
|
1616 | b179ce72 | Agata Murawska | (constants.INISECT_BEP, AUTO_BALANCE, "auto_balance"),
|
1617 | b179ce72 | Agata Murawska | (constants.INISECT_INS, TAGS, "tags"),
|
1618 | b179ce72 | Agata Murawska | (constants.INISECT_EXP, VERSION, "version"),
|
1619 | b179ce72 | Agata Murawska | ] |
1620 | b179ce72 | Agata Murawska | for (section, element, name) in others: |
1621 | b179ce72 | Agata Murawska | results[name] = self.config_parser.get(section, element)
|
1622 | b179ce72 | Agata Murawska | return results
|
1623 | b179ce72 | Agata Murawska | |
1624 | b179ce72 | Agata Murawska | def _ParseNetworks(self): |
1625 | b179ce72 | Agata Murawska | """Parses network data from config file.
|
1626 | b179ce72 | Agata Murawska |
|
1627 | b179ce72 | Agata Murawska | @rtype: list
|
1628 | b179ce72 | Agata Murawska | @return: list of dictionaries of network options
|
1629 | b179ce72 | Agata Murawska |
|
1630 | b179ce72 | Agata Murawska | @raise errors.OpPrereqError: then network mode is not recognized
|
1631 | b179ce72 | Agata Murawska |
|
1632 | b179ce72 | Agata Murawska | """
|
1633 | b179ce72 | Agata Murawska | results = [] |
1634 | b179ce72 | Agata Murawska | counter = 0
|
1635 | b179ce72 | Agata Murawska | while True: |
1636 | b179ce72 | Agata Murawska | data_link = \ |
1637 | b179ce72 | Agata Murawska | self.config_parser.get(constants.INISECT_INS, "nic%s_link" % counter) |
1638 | b179ce72 | Agata Murawska | if data_link is None: |
1639 | b179ce72 | Agata Murawska | break
|
1640 | b179ce72 | Agata Murawska | results.append({ |
1641 | b179ce72 | Agata Murawska | "mode": self.config_parser.get(constants.INISECT_INS, |
1642 | b179ce72 | Agata Murawska | "nic%s_mode" % counter),
|
1643 | b179ce72 | Agata Murawska | "mac": self.config_parser.get(constants.INISECT_INS, |
1644 | b179ce72 | Agata Murawska | "nic%s_mac" % counter),
|
1645 | b179ce72 | Agata Murawska | "ip": self.config_parser.get(constants.INISECT_INS, |
1646 | b179ce72 | Agata Murawska | "nic%s_ip" % counter),
|
1647 | b179ce72 | Agata Murawska | "link": data_link,
|
1648 | b179ce72 | Agata Murawska | }) |
1649 | b179ce72 | Agata Murawska | if results[counter]["mode"] not in constants.NIC_VALID_MODES: |
1650 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("Network mode %s not recognized" |
1651 | b179ce72 | Agata Murawska | % results[counter]["mode"])
|
1652 | b179ce72 | Agata Murawska | counter += 1
|
1653 | b179ce72 | Agata Murawska | return results
|
1654 | b179ce72 | Agata Murawska | |
1655 | b179ce72 | Agata Murawska | def _GetDiskOptions(self, disk_file, compression): |
1656 | b179ce72 | Agata Murawska | """Convert the disk and gather disk info for .ovf file.
|
1657 | b179ce72 | Agata Murawska |
|
1658 | b179ce72 | Agata Murawska | @type disk_file: string
|
1659 | b179ce72 | Agata Murawska | @param disk_file: name of the disk (without the full path)
|
1660 | b179ce72 | Agata Murawska | @type compression: bool
|
1661 | b179ce72 | Agata Murawska | @param compression: whether the disk should be compressed or not
|
1662 | b179ce72 | Agata Murawska |
|
1663 | b179ce72 | Agata Murawska | @raise errors.OpPrereqError: when disk image does not exist
|
1664 | b179ce72 | Agata Murawska |
|
1665 | b179ce72 | Agata Murawska | """
|
1666 | b179ce72 | Agata Murawska | disk_path = utils.PathJoin(self.input_dir, disk_file)
|
1667 | b179ce72 | Agata Murawska | results = {} |
1668 | b179ce72 | Agata Murawska | if not os.path.isfile(disk_path): |
1669 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("Disk image does not exist: %s" % disk_path) |
1670 | b179ce72 | Agata Murawska | if os.path.dirname(disk_file):
|
1671 | b179ce72 | Agata Murawska | raise errors.OpPrereqError("Path for the disk: %s contains a directory" |
1672 | b179ce72 | Agata Murawska | " name" % disk_path)
|
1673 | b179ce72 | Agata Murawska | disk_name, _ = os.path.splitext(disk_file) |
1674 | b179ce72 | Agata Murawska | ext, new_disk_path = self._ConvertDisk(self.options.disk_format, disk_path) |
1675 | b179ce72 | Agata Murawska | results["format"] = self.options.disk_format |
1676 | b179ce72 | Agata Murawska | results["virt-size"] = self._GetDiskQemuInfo(new_disk_path, |
1677 | b179ce72 | Agata Murawska | "virtual size: \S+ \((\d+) bytes\)")
|
1678 | b179ce72 | Agata Murawska | if compression:
|
1679 | b179ce72 | Agata Murawska | ext2, new_disk_path = self._CompressDisk(new_disk_path, "gzip", |
1680 | b179ce72 | Agata Murawska | COMPRESS) |
1681 | b179ce72 | Agata Murawska | disk_name, _ = os.path.splitext(disk_name) |
1682 | b179ce72 | Agata Murawska | results["compression"] = "gzip" |
1683 | b179ce72 | Agata Murawska | ext += ext2 |
1684 | b179ce72 | Agata Murawska | final_disk_path = LinkFile(new_disk_path, prefix=disk_name, suffix=ext, |
1685 | b179ce72 | Agata Murawska | directory=self.output_dir)
|
1686 | b179ce72 | Agata Murawska | final_disk_name = os.path.basename(final_disk_path) |
1687 | b179ce72 | Agata Murawska | results["real-size"] = os.path.getsize(final_disk_path)
|
1688 | b179ce72 | Agata Murawska | results["path"] = final_disk_name
|
1689 | b179ce72 | Agata Murawska | self.references_files.append(final_disk_path)
|
1690 | b179ce72 | Agata Murawska | return results
|
1691 | b179ce72 | Agata Murawska | |
1692 | b179ce72 | Agata Murawska | def _ParseDisks(self): |
1693 | b179ce72 | Agata Murawska | """Parses disk data from config file.
|
1694 | b179ce72 | Agata Murawska |
|
1695 | b179ce72 | Agata Murawska | @rtype: list
|
1696 | b179ce72 | Agata Murawska | @return: list of dictionaries of disk options
|
1697 | b179ce72 | Agata Murawska |
|
1698 | b179ce72 | Agata Murawska | """
|
1699 | b179ce72 | Agata Murawska | results = [] |
1700 | b179ce72 | Agata Murawska | counter = 0
|
1701 | b179ce72 | Agata Murawska | while True: |
1702 | b179ce72 | Agata Murawska | disk_file = \ |
1703 | b179ce72 | Agata Murawska | self.config_parser.get(constants.INISECT_INS, "disk%s_dump" % counter) |
1704 | b179ce72 | Agata Murawska | if disk_file is None: |
1705 | b179ce72 | Agata Murawska | break
|
1706 | b179ce72 | Agata Murawska | results.append(self._GetDiskOptions(disk_file, self.options.compression)) |
1707 | b179ce72 | Agata Murawska | counter += 1
|
1708 | b179ce72 | Agata Murawska | return results
|
1709 | b179ce72 | Agata Murawska | |
1710 | ced78a66 | Agata Murawska | def Parse(self): |
1711 | 0963b26a | Agata Murawska | """Parses the data and creates a structure containing all required info.
|
1712 | 0963b26a | Agata Murawska |
|
1713 | 0963b26a | Agata Murawska | """
|
1714 | 0963b26a | Agata Murawska | try:
|
1715 | 0963b26a | Agata Murawska | utils.Makedirs(self.output_dir)
|
1716 | 0963b26a | Agata Murawska | except OSError, err: |
1717 | 0963b26a | Agata Murawska | raise errors.OpPrereqError("Failed to create directory %s: %s" % |
1718 | 0963b26a | Agata Murawska | (self.output_dir, err))
|
1719 | 0963b26a | Agata Murawska | |
1720 | b179ce72 | Agata Murawska | self.references_files = []
|
1721 | 0963b26a | Agata Murawska | self.results_name = self._ParseName() |
1722 | b179ce72 | Agata Murawska | self.results_vcpus = self._ParseVCPUs() |
1723 | b179ce72 | Agata Murawska | self.results_memory = self._ParseMemory() |
1724 | b179ce72 | Agata Murawska | if not self.options.ext_usage: |
1725 | b179ce72 | Agata Murawska | self.results_ganeti = self._ParseGaneti() |
1726 | b179ce72 | Agata Murawska | self.results_network = self._ParseNetworks() |
1727 | b179ce72 | Agata Murawska | self.results_disk = self._ParseDisks() |
1728 | 0963b26a | Agata Murawska | |
1729 | 0963b26a | Agata Murawska | def _PrepareManifest(self, path): |
1730 | 0963b26a | Agata Murawska | """Creates manifest for all the files in OVF package.
|
1731 | 0963b26a | Agata Murawska |
|
1732 | 0963b26a | Agata Murawska | @type path: string
|
1733 | 0963b26a | Agata Murawska | @param path: path to manifesto file
|
1734 | 0963b26a | Agata Murawska |
|
1735 | 0963b26a | Agata Murawska | @raise errors.OpPrereqError: if error occurs when writing file
|
1736 | 0963b26a | Agata Murawska |
|
1737 | 0963b26a | Agata Murawska | """
|
1738 | 0963b26a | Agata Murawska | logging.info("Preparing manifest for the OVF package")
|
1739 | 0963b26a | Agata Murawska | lines = [] |
1740 | 0963b26a | Agata Murawska | files_list = [self.output_path]
|
1741 | 0963b26a | Agata Murawska | files_list.extend(self.references_files)
|
1742 | 0963b26a | Agata Murawska | logging.warning("Calculating SHA1 checksums, this may take a while")
|
1743 | 0963b26a | Agata Murawska | sha1_sums = utils.FingerprintFiles(files_list) |
1744 | 0963b26a | Agata Murawska | for file_path, value in sha1_sums.iteritems(): |
1745 | 0963b26a | Agata Murawska | file_name = os.path.basename(file_path) |
1746 | 0963b26a | Agata Murawska | lines.append("SHA1(%s)= %s" % (file_name, value))
|
1747 | 0963b26a | Agata Murawska | lines.append("")
|
1748 | 0963b26a | Agata Murawska | data = "\n".join(lines)
|
1749 | 0963b26a | Agata Murawska | try:
|
1750 | 0963b26a | Agata Murawska | utils.WriteFile(path, data=data) |
1751 | 0963b26a | Agata Murawska | except errors.ProgrammerError, err:
|
1752 | 0963b26a | Agata Murawska | raise errors.OpPrereqError("Saving the manifest file failed: %s" % err) |
1753 | 0963b26a | Agata Murawska | |
1754 | 0963b26a | Agata Murawska | @staticmethod
|
1755 | 0963b26a | Agata Murawska | def _PrepareTarFile(tar_path, files_list): |
1756 | 0963b26a | Agata Murawska | """Creates tarfile from the files in OVF package.
|
1757 | 0963b26a | Agata Murawska |
|
1758 | 0963b26a | Agata Murawska | @type tar_path: string
|
1759 | 0963b26a | Agata Murawska | @param tar_path: path to the resulting file
|
1760 | 0963b26a | Agata Murawska | @type files_list: list
|
1761 | 0963b26a | Agata Murawska | @param files_list: list of files in the OVF package
|
1762 | 0963b26a | Agata Murawska |
|
1763 | 0963b26a | Agata Murawska | """
|
1764 | 0963b26a | Agata Murawska | logging.info("Preparing tarball for the OVF package")
|
1765 | 0963b26a | Agata Murawska | open(tar_path, mode="w").close() |
1766 | 0963b26a | Agata Murawska | ova_package = tarfile.open(name=tar_path, mode="w")
|
1767 | fa337742 | Agata Murawska | for file_path in files_list: |
1768 | fa337742 | Agata Murawska | file_name = os.path.basename(file_path) |
1769 | fa337742 | Agata Murawska | ova_package.add(file_path, arcname=file_name) |
1770 | 0963b26a | Agata Murawska | ova_package.close() |
1771 | ced78a66 | Agata Murawska | |
1772 | ced78a66 | Agata Murawska | def Save(self): |
1773 | 0963b26a | Agata Murawska | """Saves the gathered configuration in an apropriate format.
|
1774 | 0963b26a | Agata Murawska |
|
1775 | 0963b26a | Agata Murawska | @raise errors.OpPrereqError: if unable to create output directory
|
1776 | 0963b26a | Agata Murawska |
|
1777 | 0963b26a | Agata Murawska | """
|
1778 | 0963b26a | Agata Murawska | output_file = "%s%s" % (self.results_name, OVF_EXT) |
1779 | 0963b26a | Agata Murawska | output_path = utils.PathJoin(self.output_dir, output_file)
|
1780 | 0963b26a | Agata Murawska | self.ovf_writer = OVFWriter(not self.options.ext_usage) |
1781 | 0963b26a | Agata Murawska | logging.info("Saving read data to %s", output_path)
|
1782 | 0963b26a | Agata Murawska | |
1783 | 0963b26a | Agata Murawska | self.output_path = utils.PathJoin(self.output_dir, output_file) |
1784 | 0963b26a | Agata Murawska | files_list = [self.output_path]
|
1785 | 0963b26a | Agata Murawska | |
1786 | 7432d332 | Agata Murawska | self.ovf_writer.SaveDisksData(self.results_disk) |
1787 | 7432d332 | Agata Murawska | self.ovf_writer.SaveNetworksData(self.results_network) |
1788 | 7432d332 | Agata Murawska | if not self.options.ext_usage: |
1789 | 7432d332 | Agata Murawska | self.ovf_writer.SaveGanetiData(self.results_ganeti, self.results_network) |
1790 | 7432d332 | Agata Murawska | |
1791 | 7432d332 | Agata Murawska | self.ovf_writer.SaveVirtualSystemData(self.results_name, self.results_vcpus, |
1792 | 7432d332 | Agata Murawska | self.results_memory)
|
1793 | 7432d332 | Agata Murawska | |
1794 | 0963b26a | Agata Murawska | data = self.ovf_writer.PrettyXmlDump()
|
1795 | 0963b26a | Agata Murawska | utils.WriteFile(self.output_path, data=data)
|
1796 | 0963b26a | Agata Murawska | |
1797 | 0963b26a | Agata Murawska | manifest_file = "%s%s" % (self.results_name, MF_EXT) |
1798 | 0963b26a | Agata Murawska | manifest_path = utils.PathJoin(self.output_dir, manifest_file)
|
1799 | 0963b26a | Agata Murawska | self._PrepareManifest(manifest_path)
|
1800 | 0963b26a | Agata Murawska | files_list.append(manifest_path) |
1801 | 0963b26a | Agata Murawska | |
1802 | 0963b26a | Agata Murawska | files_list.extend(self.references_files)
|
1803 | 0963b26a | Agata Murawska | |
1804 | 0963b26a | Agata Murawska | if self.options.ova_package: |
1805 | 0963b26a | Agata Murawska | ova_file = "%s%s" % (self.results_name, OVA_EXT) |
1806 | 0963b26a | Agata Murawska | packed_path = utils.PathJoin(self.packed_dir, ova_file)
|
1807 | 0963b26a | Agata Murawska | try:
|
1808 | 0963b26a | Agata Murawska | utils.Makedirs(self.packed_dir)
|
1809 | 0963b26a | Agata Murawska | except OSError, err: |
1810 | 0963b26a | Agata Murawska | raise errors.OpPrereqError("Failed to create directory %s: %s" % |
1811 | 0963b26a | Agata Murawska | (self.packed_dir, err))
|
1812 | 0963b26a | Agata Murawska | self._PrepareTarFile(packed_path, files_list)
|
1813 | 0963b26a | Agata Murawska | logging.info("Creation of the OVF package was successfull")
|
1814 | 0963b26a | Agata Murawska | self.Cleanup() |