root / lib / hypervisor / hv_kvm.py @ 4304964a
History | View | Annotate | Download (42.7 kB)
1 | eb58f9b1 | Guido Trotter | #
|
---|---|---|---|
2 | eb58f9b1 | Guido Trotter | #
|
3 | eb58f9b1 | Guido Trotter | |
4 | 783a6c0b | Iustin Pop | # Copyright (C) 2008, 2009, 2010 Google Inc.
|
5 | eb58f9b1 | Guido Trotter | #
|
6 | eb58f9b1 | Guido Trotter | # This program is free software; you can redistribute it and/or modify
|
7 | eb58f9b1 | Guido Trotter | # it under the terms of the GNU General Public License as published by
|
8 | eb58f9b1 | Guido Trotter | # the Free Software Foundation; either version 2 of the License, or
|
9 | eb58f9b1 | Guido Trotter | # (at your option) any later version.
|
10 | eb58f9b1 | Guido Trotter | #
|
11 | eb58f9b1 | Guido Trotter | # This program is distributed in the hope that it will be useful, but
|
12 | eb58f9b1 | Guido Trotter | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | eb58f9b1 | Guido Trotter | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | eb58f9b1 | Guido Trotter | # General Public License for more details.
|
15 | eb58f9b1 | Guido Trotter | #
|
16 | eb58f9b1 | Guido Trotter | # You should have received a copy of the GNU General Public License
|
17 | eb58f9b1 | Guido Trotter | # along with this program; if not, write to the Free Software
|
18 | eb58f9b1 | Guido Trotter | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | eb58f9b1 | Guido Trotter | # 02110-1301, USA.
|
20 | eb58f9b1 | Guido Trotter | |
21 | eb58f9b1 | Guido Trotter | |
22 | eb58f9b1 | Guido Trotter | """KVM hypervisor
|
23 | eb58f9b1 | Guido Trotter |
|
24 | eb58f9b1 | Guido Trotter | """
|
25 | eb58f9b1 | Guido Trotter | |
26 | 547a63b7 | Balazs Lecz | import errno |
27 | eb58f9b1 | Guido Trotter | import os |
28 | eb58f9b1 | Guido Trotter | import os.path |
29 | eb58f9b1 | Guido Trotter | import re |
30 | eb58f9b1 | Guido Trotter | import tempfile |
31 | 6567aff3 | Guido Trotter | import time |
32 | 30e42c4e | Guido Trotter | import logging |
33 | d19d94db | Guido Trotter | import pwd |
34 | 199b2053 | Apollon Oikonomopoulos | import struct |
35 | 199b2053 | Apollon Oikonomopoulos | import fcntl |
36 | 5d9bfd87 | Apollon Oikonomopoulos | import shutil |
37 | eb58f9b1 | Guido Trotter | |
38 | eb58f9b1 | Guido Trotter | from ganeti import utils |
39 | eb58f9b1 | Guido Trotter | from ganeti import constants |
40 | eb58f9b1 | Guido Trotter | from ganeti import errors |
41 | 38e250ba | Guido Trotter | from ganeti import serializer |
42 | 38e250ba | Guido Trotter | from ganeti import objects |
43 | 76431533 | Guido Trotter | from ganeti import uidpool |
44 | 76431533 | Guido Trotter | from ganeti import ssconf |
45 | eb58f9b1 | Guido Trotter | from ganeti.hypervisor import hv_base |
46 | a744b676 | Manuel Franceschini | from ganeti import netutils |
47 | 5d9bfd87 | Apollon Oikonomopoulos | from ganeti.utils import wrapper as utils_wrapper |
48 | eb58f9b1 | Guido Trotter | |
49 | eb58f9b1 | Guido Trotter | |
50 | 748e4b5a | Michael Hanselmann | _KVM_NETWORK_SCRIPT = constants.SYSCONFDIR + "/ganeti/kvm-vif-bridge"
|
51 | 748e4b5a | Michael Hanselmann | |
52 | 199b2053 | Apollon Oikonomopoulos | # TUN/TAP driver constants, taken from <linux/if_tun.h>
|
53 | 199b2053 | Apollon Oikonomopoulos | # They are architecture-independent and already hardcoded in qemu-kvm source,
|
54 | 199b2053 | Apollon Oikonomopoulos | # so we can safely include them here.
|
55 | 199b2053 | Apollon Oikonomopoulos | TUNSETIFF = 0x400454ca
|
56 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF = 0x800454d2
|
57 | 199b2053 | Apollon Oikonomopoulos | TUNGETFEATURES = 0x800454cf
|
58 | 199b2053 | Apollon Oikonomopoulos | IFF_TAP = 0x0002
|
59 | 199b2053 | Apollon Oikonomopoulos | IFF_NO_PI = 0x1000
|
60 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR = 0x4000
|
61 | 199b2053 | Apollon Oikonomopoulos | |
62 | 199b2053 | Apollon Oikonomopoulos | |
63 | 199b2053 | Apollon Oikonomopoulos | def _ProbeTapVnetHdr(fd): |
64 | 199b2053 | Apollon Oikonomopoulos | """Check whether to enable the IFF_VNET_HDR flag.
|
65 | 199b2053 | Apollon Oikonomopoulos |
|
66 | 199b2053 | Apollon Oikonomopoulos | To do this, _all_ of the following conditions must be met:
|
67 | 199b2053 | Apollon Oikonomopoulos | 1. TUNGETFEATURES ioctl() *must* be implemented
|
68 | 199b2053 | Apollon Oikonomopoulos | 2. TUNGETFEATURES ioctl() result *must* contain the IFF_VNET_HDR flag
|
69 | 199b2053 | Apollon Oikonomopoulos | 3. TUNGETIFF ioctl() *must* be implemented; reading the kernel code in
|
70 | 199b2053 | Apollon Oikonomopoulos | drivers/net/tun.c there is no way to test this until after the tap device
|
71 | 199b2053 | Apollon Oikonomopoulos | has been created using TUNSETIFF, and there is no way to change the
|
72 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR flag after creating the interface, catch-22! However both
|
73 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF and TUNGETFEATURES were introduced in kernel version 2.6.27,
|
74 | 199b2053 | Apollon Oikonomopoulos | thus we can expect TUNGETIFF to be present if TUNGETFEATURES is.
|
75 | 199b2053 | Apollon Oikonomopoulos |
|
76 | 199b2053 | Apollon Oikonomopoulos | @type fd: int
|
77 | 199b2053 | Apollon Oikonomopoulos | @param fd: the file descriptor of /dev/net/tun
|
78 | 199b2053 | Apollon Oikonomopoulos |
|
79 | 199b2053 | Apollon Oikonomopoulos | """
|
80 | 199b2053 | Apollon Oikonomopoulos | req = struct.pack("I", 0) |
81 | 199b2053 | Apollon Oikonomopoulos | try:
|
82 | 199b2053 | Apollon Oikonomopoulos | res = fcntl.ioctl(fd, TUNGETFEATURES, req) |
83 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
84 | 199b2053 | Apollon Oikonomopoulos | logging.warning("TUNGETFEATURES ioctl() not implemented")
|
85 | 199b2053 | Apollon Oikonomopoulos | return False |
86 | 199b2053 | Apollon Oikonomopoulos | |
87 | 199b2053 | Apollon Oikonomopoulos | tunflags = struct.unpack("I", res)[0] |
88 | 199b2053 | Apollon Oikonomopoulos | if tunflags & IFF_VNET_HDR:
|
89 | 199b2053 | Apollon Oikonomopoulos | return True |
90 | 199b2053 | Apollon Oikonomopoulos | else:
|
91 | 199b2053 | Apollon Oikonomopoulos | logging.warning("Host does not support IFF_VNET_HDR, not enabling")
|
92 | 199b2053 | Apollon Oikonomopoulos | return False |
93 | 199b2053 | Apollon Oikonomopoulos | |
94 | 199b2053 | Apollon Oikonomopoulos | |
95 | 199b2053 | Apollon Oikonomopoulos | def _OpenTap(vnet_hdr=True): |
96 | 199b2053 | Apollon Oikonomopoulos | """Open a new tap device and return its file descriptor.
|
97 | 199b2053 | Apollon Oikonomopoulos |
|
98 | 199b2053 | Apollon Oikonomopoulos | This is intended to be used by a qemu-type hypervisor together with the -net
|
99 | 199b2053 | Apollon Oikonomopoulos | tap,fd=<fd> command line parameter.
|
100 | 199b2053 | Apollon Oikonomopoulos |
|
101 | 199b2053 | Apollon Oikonomopoulos | @type vnet_hdr: boolean
|
102 | 199b2053 | Apollon Oikonomopoulos | @param vnet_hdr: Enable the VNET Header
|
103 | 199b2053 | Apollon Oikonomopoulos | @return: (ifname, tapfd)
|
104 | 199b2053 | Apollon Oikonomopoulos | @rtype: tuple
|
105 | 199b2053 | Apollon Oikonomopoulos |
|
106 | 199b2053 | Apollon Oikonomopoulos | """
|
107 | 199b2053 | Apollon Oikonomopoulos | try:
|
108 | 199b2053 | Apollon Oikonomopoulos | tapfd = os.open("/dev/net/tun", os.O_RDWR)
|
109 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
110 | 199b2053 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to open /dev/net/tun") |
111 | 199b2053 | Apollon Oikonomopoulos | |
112 | 199b2053 | Apollon Oikonomopoulos | flags = IFF_TAP | IFF_NO_PI |
113 | 199b2053 | Apollon Oikonomopoulos | |
114 | 199b2053 | Apollon Oikonomopoulos | if vnet_hdr and _ProbeTapVnetHdr(tapfd): |
115 | 199b2053 | Apollon Oikonomopoulos | flags |= IFF_VNET_HDR |
116 | 199b2053 | Apollon Oikonomopoulos | |
117 | 199b2053 | Apollon Oikonomopoulos | # The struct ifreq ioctl request (see netdevice(7))
|
118 | 199b2053 | Apollon Oikonomopoulos | ifr = struct.pack("16sh", "", flags) |
119 | 199b2053 | Apollon Oikonomopoulos | |
120 | 199b2053 | Apollon Oikonomopoulos | try:
|
121 | 199b2053 | Apollon Oikonomopoulos | res = fcntl.ioctl(tapfd, TUNSETIFF, ifr) |
122 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
123 | 199b2053 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to allocate a new TAP device") |
124 | 199b2053 | Apollon Oikonomopoulos | |
125 | 199b2053 | Apollon Oikonomopoulos | # Get the interface name from the ioctl
|
126 | 199b2053 | Apollon Oikonomopoulos | ifname = struct.unpack("16sh", res)[0].strip("\x00") |
127 | 199b2053 | Apollon Oikonomopoulos | return (ifname, tapfd)
|
128 | 199b2053 | Apollon Oikonomopoulos | |
129 | 748e4b5a | Michael Hanselmann | |
130 | eb58f9b1 | Guido Trotter | class KVMHypervisor(hv_base.BaseHypervisor): |
131 | c4469f75 | Guido Trotter | """KVM hypervisor interface"""
|
132 | d271c6fd | Iustin Pop | CAN_MIGRATE = True
|
133 | eb58f9b1 | Guido Trotter | |
134 | eb58f9b1 | Guido Trotter | _ROOT_DIR = constants.RUN_GANETI_DIR + "/kvm-hypervisor"
|
135 | a1d79fc6 | Guido Trotter | _PIDS_DIR = _ROOT_DIR + "/pid" # contains live instances pids |
136 | 7548396c | Guido Trotter | _UIDS_DIR = _ROOT_DIR + "/uid" # contains instances reserved uids |
137 | a1d79fc6 | Guido Trotter | _CTRL_DIR = _ROOT_DIR + "/ctrl" # contains instances control sockets |
138 | a1d79fc6 | Guido Trotter | _CONF_DIR = _ROOT_DIR + "/conf" # contains instances startup data |
139 | 5d9bfd87 | Apollon Oikonomopoulos | _NICS_DIR = _ROOT_DIR + "/nic" # contains instances nic <-> tap associations |
140 | 547a63b7 | Balazs Lecz | # KVM instances with chroot enabled are started in empty chroot directories.
|
141 | 547a63b7 | Balazs Lecz | _CHROOT_DIR = _ROOT_DIR + "/chroot" # for empty chroot directories |
142 | 547a63b7 | Balazs Lecz | # After an instance is stopped, its chroot directory is removed.
|
143 | 547a63b7 | Balazs Lecz | # If the chroot directory is not empty, it can't be removed.
|
144 | 547a63b7 | Balazs Lecz | # A non-empty chroot directory indicates a possible security incident.
|
145 | 547a63b7 | Balazs Lecz | # To support forensics, the non-empty chroot directory is quarantined in
|
146 | 547a63b7 | Balazs Lecz | # a separate directory, called 'chroot-quarantine'.
|
147 | 547a63b7 | Balazs Lecz | _CHROOT_QUARANTINE_DIR = _ROOT_DIR + "/chroot-quarantine"
|
148 | 5d9bfd87 | Apollon Oikonomopoulos | _DIRS = [_ROOT_DIR, _PIDS_DIR, _UIDS_DIR, _CTRL_DIR, _CONF_DIR, _NICS_DIR, |
149 | 547a63b7 | Balazs Lecz | _CHROOT_DIR, _CHROOT_QUARANTINE_DIR] |
150 | eb58f9b1 | Guido Trotter | |
151 | 205ab586 | Iustin Pop | PARAMETERS = { |
152 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.OPT_FILE_CHECK, |
153 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
154 | 205ab586 | Iustin Pop | constants.HV_ROOT_PATH: hv_base.NO_CHECK, |
155 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
156 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
157 | 205ab586 | Iustin Pop | constants.HV_SERIAL_CONSOLE: hv_base.NO_CHECK, |
158 | d73ef63f | Michael Hanselmann | constants.HV_VNC_BIND_ADDRESS: |
159 | 8b312c1d | Manuel Franceschini | (False, lambda x: (netutils.IP4Address.IsValid(x) or |
160 | 8b312c1d | Manuel Franceschini | utils.IsNormAbsPath(x)), |
161 | d73ef63f | Michael Hanselmann | "the VNC bind address must be either a valid IP address or an absolute"
|
162 | d73ef63f | Michael Hanselmann | " pathname", None, None), |
163 | 205ab586 | Iustin Pop | constants.HV_VNC_TLS: hv_base.NO_CHECK, |
164 | 205ab586 | Iustin Pop | constants.HV_VNC_X509: hv_base.OPT_DIR_CHECK, |
165 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY: hv_base.NO_CHECK, |
166 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
167 | fba7f911 | Marco Casavecchia | constants.HV_KVM_FLOPPY_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
168 | 205ab586 | Iustin Pop | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
169 | fba7f911 | Marco Casavecchia | constants.HV_KVM_CDROM2_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
170 | d73ef63f | Michael Hanselmann | constants.HV_BOOT_ORDER: |
171 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_BO_TYPES),
|
172 | d73ef63f | Michael Hanselmann | constants.HV_NIC_TYPE: |
173 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_NIC_TYPES),
|
174 | d73ef63f | Michael Hanselmann | constants.HV_DISK_TYPE: |
175 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_DISK_TYPES),
|
176 | fba7f911 | Marco Casavecchia | constants.HV_KVM_CDROM_DISK_TYPE: |
177 | fba7f911 | Marco Casavecchia | hv_base.ParamInSet(False, constants.HT_KVM_VALID_DISK_TYPES),
|
178 | d73ef63f | Michael Hanselmann | constants.HV_USB_MOUSE: |
179 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(False, constants.HT_KVM_VALID_MOUSE_TYPES),
|
180 | 78411c60 | Iustin Pop | constants.HV_MIGRATION_PORT: hv_base.NET_PORT_CHECK, |
181 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_BANDWIDTH: hv_base.NO_CHECK, |
182 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_DOWNTIME: hv_base.NO_CHECK, |
183 | 783a6c0b | Iustin Pop | constants.HV_MIGRATION_MODE: hv_base.MIGRATION_MODE_CHECK, |
184 | 6b970cef | Jun Futagawa | constants.HV_USE_LOCALTIME: hv_base.NO_CHECK, |
185 | 19572932 | Iustin Pop | constants.HV_DISK_CACHE: |
186 | 19572932 | Iustin Pop | hv_base.ParamInSet(True, constants.HT_VALID_CACHE_TYPES),
|
187 | d19d94db | Guido Trotter | constants.HV_SECURITY_MODEL: |
188 | d19d94db | Guido Trotter | hv_base.ParamInSet(True, constants.HT_KVM_VALID_SM_TYPES),
|
189 | d19d94db | Guido Trotter | constants.HV_SECURITY_DOMAIN: hv_base.NO_CHECK, |
190 | 7ba594c0 | Guido Trotter | constants.HV_KVM_FLAG: |
191 | 7ba594c0 | Guido Trotter | hv_base.ParamInSet(False, constants.HT_KVM_FLAG_VALUES),
|
192 | fbe27e2b | Guido Trotter | constants.HV_VHOST_NET: hv_base.NO_CHECK, |
193 | 547a63b7 | Balazs Lecz | constants.HV_KVM_USE_CHROOT: hv_base.NO_CHECK, |
194 | 4f958b0b | Miguel Di Ciurcio Filho | constants.HV_MEM_PATH: hv_base.OPT_DIR_CHECK, |
195 | 205ab586 | Iustin Pop | } |
196 | 6b5605e8 | Iustin Pop | |
197 | 30e42c4e | Guido Trotter | _MIGRATION_STATUS_RE = re.compile('Migration\s+status:\s+(\w+)',
|
198 | 30e42c4e | Guido Trotter | re.M | re.I) |
199 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_MAX_BAD_ANSWERS = 5
|
200 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_RETRY_DELAY = 2
|
201 | 30e42c4e | Guido Trotter | |
202 | b52d85c1 | Guido Trotter | _VERSION_RE = re.compile(r"\b(\d+)\.(\d+)\.(\d+)\b")
|
203 | b52d85c1 | Guido Trotter | |
204 | 64bfbc08 | Guido Trotter | ANCILLARY_FILES = [ |
205 | 64bfbc08 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
206 | 64bfbc08 | Guido Trotter | ] |
207 | 64bfbc08 | Guido Trotter | |
208 | eb58f9b1 | Guido Trotter | def __init__(self): |
209 | eb58f9b1 | Guido Trotter | hv_base.BaseHypervisor.__init__(self)
|
210 | eb58f9b1 | Guido Trotter | # Let's make sure the directories we need exist, even if the RUN_DIR lives
|
211 | eb58f9b1 | Guido Trotter | # in a tmpfs filesystem or has been otherwise wiped out.
|
212 | 29921401 | Iustin Pop | dirs = [(dname, constants.RUN_DIRS_MODE) for dname in self._DIRS] |
213 | 9afb67fe | Guido Trotter | utils.EnsureDirs(dirs) |
214 | eb58f9b1 | Guido Trotter | |
215 | 30786fc9 | Iustin Pop | @classmethod
|
216 | 30786fc9 | Iustin Pop | def _InstancePidFile(cls, instance_name): |
217 | 98ec75d6 | Iustin Pop | """Returns the instance pidfile.
|
218 | 98ec75d6 | Iustin Pop |
|
219 | 98ec75d6 | Iustin Pop | """
|
220 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._PIDS_DIR, instance_name)
|
221 | 98ec75d6 | Iustin Pop | |
222 | 263b8de6 | Guido Trotter | @classmethod
|
223 | 7548396c | Guido Trotter | def _InstanceUidFile(cls, instance_name): |
224 | 7548396c | Guido Trotter | """Returns the instance uidfile.
|
225 | 7548396c | Guido Trotter |
|
226 | 7548396c | Guido Trotter | """
|
227 | 7548396c | Guido Trotter | return utils.PathJoin(cls._UIDS_DIR, instance_name)
|
228 | 7548396c | Guido Trotter | |
229 | 7548396c | Guido Trotter | @classmethod
|
230 | 263b8de6 | Guido Trotter | def _InstancePidInfo(cls, pid): |
231 | 263b8de6 | Guido Trotter | """Check pid file for instance information.
|
232 | 263b8de6 | Guido Trotter |
|
233 | 263b8de6 | Guido Trotter | Check that a pid file is associated with an instance, and retrieve
|
234 | 263b8de6 | Guido Trotter | information from its command line.
|
235 | 263b8de6 | Guido Trotter |
|
236 | 263b8de6 | Guido Trotter | @type pid: string or int
|
237 | 263b8de6 | Guido Trotter | @param pid: process id of the instance to check
|
238 | 263b8de6 | Guido Trotter | @rtype: tuple
|
239 | 263b8de6 | Guido Trotter | @return: (instance_name, memory, vcpus)
|
240 | 263b8de6 | Guido Trotter | @raise errors.HypervisorError: when an instance cannot be found
|
241 | 263b8de6 | Guido Trotter |
|
242 | 263b8de6 | Guido Trotter | """
|
243 | 263b8de6 | Guido Trotter | alive = utils.IsProcessAlive(pid) |
244 | 263b8de6 | Guido Trotter | if not alive: |
245 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Cannot get info for pid %s" % pid) |
246 | 263b8de6 | Guido Trotter | |
247 | 263b8de6 | Guido Trotter | cmdline_file = utils.PathJoin("/proc", str(pid), "cmdline") |
248 | 263b8de6 | Guido Trotter | try:
|
249 | 263b8de6 | Guido Trotter | cmdline = utils.ReadFile(cmdline_file) |
250 | 263b8de6 | Guido Trotter | except EnvironmentError, err: |
251 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Can't open cmdline file for pid %s: %s" % |
252 | 263b8de6 | Guido Trotter | (pid, err)) |
253 | 263b8de6 | Guido Trotter | |
254 | 263b8de6 | Guido Trotter | instance = None
|
255 | 263b8de6 | Guido Trotter | memory = 0
|
256 | 263b8de6 | Guido Trotter | vcpus = 0
|
257 | 263b8de6 | Guido Trotter | |
258 | 263b8de6 | Guido Trotter | arg_list = cmdline.split('\x00')
|
259 | 263b8de6 | Guido Trotter | while arg_list:
|
260 | 263b8de6 | Guido Trotter | arg = arg_list.pop(0)
|
261 | 263b8de6 | Guido Trotter | if arg == "-name": |
262 | 263b8de6 | Guido Trotter | instance = arg_list.pop(0)
|
263 | 263b8de6 | Guido Trotter | elif arg == "-m": |
264 | 263b8de6 | Guido Trotter | memory = int(arg_list.pop(0)) |
265 | 263b8de6 | Guido Trotter | elif arg == "-smp": |
266 | 263b8de6 | Guido Trotter | vcpus = int(arg_list.pop(0)) |
267 | 263b8de6 | Guido Trotter | |
268 | 263b8de6 | Guido Trotter | if instance is None: |
269 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Pid %s doesn't contain a ganeti kvm" |
270 | 263b8de6 | Guido Trotter | " instance" % pid)
|
271 | 263b8de6 | Guido Trotter | |
272 | 263b8de6 | Guido Trotter | return (instance, memory, vcpus)
|
273 | 263b8de6 | Guido Trotter | |
274 | 1f8b3a27 | Guido Trotter | def _InstancePidAlive(self, instance_name): |
275 | 263b8de6 | Guido Trotter | """Returns the instance pidfile, pid, and liveness.
|
276 | 263b8de6 | Guido Trotter |
|
277 | 263b8de6 | Guido Trotter | @type instance_name: string
|
278 | 263b8de6 | Guido Trotter | @param instance_name: instance name
|
279 | 263b8de6 | Guido Trotter | @rtype: tuple
|
280 | 263b8de6 | Guido Trotter | @return: (pid file name, pid, liveness)
|
281 | 1f8b3a27 | Guido Trotter |
|
282 | 1f8b3a27 | Guido Trotter | """
|
283 | 98ec75d6 | Iustin Pop | pidfile = self._InstancePidFile(instance_name)
|
284 | 1f8b3a27 | Guido Trotter | pid = utils.ReadPidFile(pidfile) |
285 | 263b8de6 | Guido Trotter | |
286 | 263b8de6 | Guido Trotter | alive = False
|
287 | 263b8de6 | Guido Trotter | try:
|
288 | 263b8de6 | Guido Trotter | cmd_instance = self._InstancePidInfo(pid)[0] |
289 | 263b8de6 | Guido Trotter | alive = (cmd_instance == instance_name) |
290 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
291 | 263b8de6 | Guido Trotter | pass
|
292 | 1f8b3a27 | Guido Trotter | |
293 | 1f8b3a27 | Guido Trotter | return (pidfile, pid, alive)
|
294 | 1f8b3a27 | Guido Trotter | |
295 | 5905901c | Iustin Pop | def _CheckDown(self, instance_name): |
296 | 5905901c | Iustin Pop | """Raises an error unless the given instance is down.
|
297 | 5905901c | Iustin Pop |
|
298 | 5905901c | Iustin Pop | """
|
299 | 5905901c | Iustin Pop | alive = self._InstancePidAlive(instance_name)[2] |
300 | 5905901c | Iustin Pop | if alive:
|
301 | 5905901c | Iustin Pop | raise errors.HypervisorError("Failed to start instance %s: %s" % |
302 | 5905901c | Iustin Pop | (instance_name, "already running"))
|
303 | 5905901c | Iustin Pop | |
304 | 0df4d98a | Guido Trotter | @classmethod
|
305 | 0df4d98a | Guido Trotter | def _InstanceMonitor(cls, instance_name): |
306 | c4fbefc8 | Guido Trotter | """Returns the instance monitor socket name
|
307 | c4fbefc8 | Guido Trotter |
|
308 | c4fbefc8 | Guido Trotter | """
|
309 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.monitor" % instance_name) |
310 | c4fbefc8 | Guido Trotter | |
311 | 0df4d98a | Guido Trotter | @classmethod
|
312 | 0df4d98a | Guido Trotter | def _InstanceSerial(cls, instance_name): |
313 | c4fbefc8 | Guido Trotter | """Returns the instance serial socket name
|
314 | c4fbefc8 | Guido Trotter |
|
315 | c4fbefc8 | Guido Trotter | """
|
316 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.serial" % instance_name) |
317 | c4fbefc8 | Guido Trotter | |
318 | 86d6bc2a | Guido Trotter | @staticmethod
|
319 | 86d6bc2a | Guido Trotter | def _SocatUnixConsoleParams(): |
320 | 86d6bc2a | Guido Trotter | """Returns the correct parameters for socat
|
321 | 86d6bc2a | Guido Trotter |
|
322 | 86d6bc2a | Guido Trotter | If we have a new-enough socat we can use raw mode with an escape character.
|
323 | 86d6bc2a | Guido Trotter |
|
324 | 86d6bc2a | Guido Trotter | """
|
325 | fe5b0c42 | Michael Hanselmann | if constants.SOCAT_USE_ESCAPE:
|
326 | 86d6bc2a | Guido Trotter | return "raw,echo=0,escape=%s" % constants.SOCAT_ESCAPE_CODE |
327 | 86d6bc2a | Guido Trotter | else:
|
328 | 86d6bc2a | Guido Trotter | return "echo=0,icanon=0" |
329 | 86d6bc2a | Guido Trotter | |
330 | 0df4d98a | Guido Trotter | @classmethod
|
331 | 0df4d98a | Guido Trotter | def _InstanceKVMRuntime(cls, instance_name): |
332 | 38e250ba | Guido Trotter | """Returns the instance KVM runtime filename
|
333 | 38e250ba | Guido Trotter |
|
334 | 38e250ba | Guido Trotter | """
|
335 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CONF_DIR, "%s.runtime" % instance_name) |
336 | 38e250ba | Guido Trotter | |
337 | 7e66c35b | Guido Trotter | @classmethod
|
338 | 547a63b7 | Balazs Lecz | def _InstanceChrootDir(cls, instance_name): |
339 | 547a63b7 | Balazs Lecz | """Returns the name of the KVM chroot dir of the instance
|
340 | 547a63b7 | Balazs Lecz |
|
341 | 547a63b7 | Balazs Lecz | """
|
342 | 547a63b7 | Balazs Lecz | return utils.PathJoin(cls._CHROOT_DIR, instance_name)
|
343 | 547a63b7 | Balazs Lecz | |
344 | 547a63b7 | Balazs Lecz | @classmethod
|
345 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICDir(cls, instance_name): |
346 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the directory holding the tap device files for a
|
347 | 5d9bfd87 | Apollon Oikonomopoulos | given instance.
|
348 | 5d9bfd87 | Apollon Oikonomopoulos |
|
349 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
350 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._NICS_DIR, instance_name)
|
351 | 5d9bfd87 | Apollon Oikonomopoulos | |
352 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
353 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICFile(cls, instance_name, seq): |
354 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the file containing the tap device for a given NIC
|
355 | 5d9bfd87 | Apollon Oikonomopoulos |
|
356 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
357 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq)) |
358 | 5d9bfd87 | Apollon Oikonomopoulos | |
359 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
360 | 7548396c | Guido Trotter | def _TryReadUidFile(cls, uid_file): |
361 | 7548396c | Guido Trotter | """Try to read a uid file
|
362 | 7548396c | Guido Trotter |
|
363 | 7548396c | Guido Trotter | """
|
364 | 7548396c | Guido Trotter | if os.path.exists(uid_file):
|
365 | 7548396c | Guido Trotter | try:
|
366 | 682f7601 | Guido Trotter | uid = int(utils.ReadOneLineFile(uid_file))
|
367 | aa0b600b | Guido Trotter | return uid
|
368 | 7548396c | Guido Trotter | except EnvironmentError: |
369 | 7548396c | Guido Trotter | logging.warning("Can't read uid file", exc_info=True) |
370 | 7548396c | Guido Trotter | except (TypeError, ValueError): |
371 | 7548396c | Guido Trotter | logging.warning("Can't parse uid file contents", exc_info=True) |
372 | aa0b600b | Guido Trotter | return None |
373 | 7548396c | Guido Trotter | |
374 | 7548396c | Guido Trotter | @classmethod
|
375 | 7e66c35b | Guido Trotter | def _RemoveInstanceRuntimeFiles(cls, pidfile, instance_name): |
376 | 547a63b7 | Balazs Lecz | """Removes an instance's rutime sockets/files/dirs.
|
377 | 7e66c35b | Guido Trotter |
|
378 | 7e66c35b | Guido Trotter | """
|
379 | 7e66c35b | Guido Trotter | utils.RemoveFile(pidfile) |
380 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceMonitor(instance_name)) |
381 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceSerial(instance_name)) |
382 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceKVMRuntime(instance_name)) |
383 | 7548396c | Guido Trotter | uid_file = cls._InstanceUidFile(instance_name) |
384 | 7548396c | Guido Trotter | uid = cls._TryReadUidFile(uid_file) |
385 | 7548396c | Guido Trotter | utils.RemoveFile(uid_file) |
386 | 7548396c | Guido Trotter | if uid is not None: |
387 | 7548396c | Guido Trotter | uidpool.ReleaseUid(uid) |
388 | 7be85163 | Guido Trotter | try:
|
389 | 7be85163 | Guido Trotter | shutil.rmtree(cls._InstanceNICDir(instance_name)) |
390 | 7be85163 | Guido Trotter | except OSError, err: |
391 | 7be85163 | Guido Trotter | if err.errno != errno.ENOENT:
|
392 | 7be85163 | Guido Trotter | raise
|
393 | 547a63b7 | Balazs Lecz | try:
|
394 | 547a63b7 | Balazs Lecz | chroot_dir = cls._InstanceChrootDir(instance_name) |
395 | 547a63b7 | Balazs Lecz | utils.RemoveDir(chroot_dir) |
396 | 547a63b7 | Balazs Lecz | except OSError, err: |
397 | 547a63b7 | Balazs Lecz | if err.errno == errno.ENOTEMPTY:
|
398 | 547a63b7 | Balazs Lecz | # The chroot directory is expected to be empty, but it isn't.
|
399 | 547a63b7 | Balazs Lecz | new_chroot_dir = tempfile.mkdtemp(dir=cls._CHROOT_QUARANTINE_DIR, |
400 | 547a63b7 | Balazs Lecz | prefix="%s-%s-" %
|
401 | 547a63b7 | Balazs Lecz | (instance_name, |
402 | 547a63b7 | Balazs Lecz | utils.TimestampForFilename())) |
403 | 547a63b7 | Balazs Lecz | logging.warning("The chroot directory of instance %s can not be"
|
404 | 547a63b7 | Balazs Lecz | " removed as it is not empty. Moving it to the"
|
405 | 547a63b7 | Balazs Lecz | " quarantine instead. Please investigate the"
|
406 | 547a63b7 | Balazs Lecz | " contents (%s) and clean up manually",
|
407 | 547a63b7 | Balazs Lecz | instance_name, new_chroot_dir) |
408 | 547a63b7 | Balazs Lecz | utils.RenameFile(chroot_dir, new_chroot_dir) |
409 | 547a63b7 | Balazs Lecz | else:
|
410 | 547a63b7 | Balazs Lecz | raise
|
411 | 7e66c35b | Guido Trotter | |
412 | 748e4b5a | Michael Hanselmann | @staticmethod
|
413 | 5d9bfd87 | Apollon Oikonomopoulos | def _ConfigureNIC(instance, seq, nic, tap): |
414 | 5d9bfd87 | Apollon Oikonomopoulos | """Run the network configuration script for a specified NIC
|
415 | eb58f9b1 | Guido Trotter |
|
416 | eb58f9b1 | Guido Trotter | @param instance: instance we're acting on
|
417 | eb58f9b1 | Guido Trotter | @type instance: instance object
|
418 | eb58f9b1 | Guido Trotter | @param seq: nic sequence number
|
419 | eb58f9b1 | Guido Trotter | @type seq: int
|
420 | eb58f9b1 | Guido Trotter | @param nic: nic we're acting on
|
421 | eb58f9b1 | Guido Trotter | @type nic: nic object
|
422 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap: the host's tap interface this NIC corresponds to
|
423 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap: str
|
424 | eb58f9b1 | Guido Trotter |
|
425 | eb58f9b1 | Guido Trotter | """
|
426 | 748e4b5a | Michael Hanselmann | |
427 | 5d9bfd87 | Apollon Oikonomopoulos | if instance.tags:
|
428 | 5d9bfd87 | Apollon Oikonomopoulos | tags = " ".join(instance.tags)
|
429 | 5d9bfd87 | Apollon Oikonomopoulos | else:
|
430 | 5d9bfd87 | Apollon Oikonomopoulos | tags = ""
|
431 | 5d9bfd87 | Apollon Oikonomopoulos | |
432 | 5d9bfd87 | Apollon Oikonomopoulos | env = { |
433 | 5d9bfd87 | Apollon Oikonomopoulos | "PATH": "%s:/sbin:/usr/sbin" % os.environ["PATH"], |
434 | 5d9bfd87 | Apollon Oikonomopoulos | "INSTANCE": instance.name,
|
435 | 5d9bfd87 | Apollon Oikonomopoulos | "MAC": nic.mac,
|
436 | 5d9bfd87 | Apollon Oikonomopoulos | "MODE": nic.nicparams[constants.NIC_MODE],
|
437 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE": tap,
|
438 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE_INDEX": str(seq), |
439 | 5d9bfd87 | Apollon Oikonomopoulos | "TAGS": tags,
|
440 | 5d9bfd87 | Apollon Oikonomopoulos | } |
441 | 5d9bfd87 | Apollon Oikonomopoulos | |
442 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.ip:
|
443 | 5d9bfd87 | Apollon Oikonomopoulos | env["IP"] = nic.ip
|
444 | 5d9bfd87 | Apollon Oikonomopoulos | |
445 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_LINK]:
|
446 | 5d9bfd87 | Apollon Oikonomopoulos | env["LINK"] = nic.nicparams[constants.NIC_LINK]
|
447 | 5d9bfd87 | Apollon Oikonomopoulos | |
448 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
449 | 5d9bfd87 | Apollon Oikonomopoulos | env["BRIDGE"] = nic.nicparams[constants.NIC_LINK]
|
450 | 5d9bfd87 | Apollon Oikonomopoulos | |
451 | 5d9bfd87 | Apollon Oikonomopoulos | result = utils.RunCmd([constants.KVM_IFUP, tap], env=env) |
452 | 5d9bfd87 | Apollon Oikonomopoulos | if result.failed:
|
453 | 5d9bfd87 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to configure interface %s: %s." |
454 | 5d9bfd87 | Apollon Oikonomopoulos | " Network configuration script output: %s" %
|
455 | 5d9bfd87 | Apollon Oikonomopoulos | (tap, result.fail_reason, result.output)) |
456 | eb58f9b1 | Guido Trotter | |
457 | eb58f9b1 | Guido Trotter | def ListInstances(self): |
458 | eb58f9b1 | Guido Trotter | """Get the list of running instances.
|
459 | eb58f9b1 | Guido Trotter |
|
460 | c41eea6e | Iustin Pop | We can do this by listing our live instances directory and
|
461 | c41eea6e | Iustin Pop | checking whether the associated kvm process is still alive.
|
462 | eb58f9b1 | Guido Trotter |
|
463 | eb58f9b1 | Guido Trotter | """
|
464 | eb58f9b1 | Guido Trotter | result = [] |
465 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
466 | 263b8de6 | Guido Trotter | if self._InstancePidAlive(name)[2]: |
467 | eb58f9b1 | Guido Trotter | result.append(name) |
468 | eb58f9b1 | Guido Trotter | return result
|
469 | eb58f9b1 | Guido Trotter | |
470 | eb58f9b1 | Guido Trotter | def GetInstanceInfo(self, instance_name): |
471 | eb58f9b1 | Guido Trotter | """Get instance properties.
|
472 | eb58f9b1 | Guido Trotter |
|
473 | 4fbb3c60 | Guido Trotter | @type instance_name: string
|
474 | c41eea6e | Iustin Pop | @param instance_name: the instance name
|
475 | 4fbb3c60 | Guido Trotter | @rtype: tuple of strings
|
476 | 4fbb3c60 | Guido Trotter | @return: (name, id, memory, vcpus, stat, times)
|
477 | eb58f9b1 | Guido Trotter |
|
478 | eb58f9b1 | Guido Trotter | """
|
479 | 1122eb25 | Iustin Pop | _, pid, alive = self._InstancePidAlive(instance_name)
|
480 | 1f8b3a27 | Guido Trotter | if not alive: |
481 | eb58f9b1 | Guido Trotter | return None |
482 | eb58f9b1 | Guido Trotter | |
483 | 263b8de6 | Guido Trotter | _, memory, vcpus = self._InstancePidInfo(pid)
|
484 | eb58f9b1 | Guido Trotter | stat = "---b-"
|
485 | eb58f9b1 | Guido Trotter | times = "0"
|
486 | eb58f9b1 | Guido Trotter | |
487 | eb58f9b1 | Guido Trotter | return (instance_name, pid, memory, vcpus, stat, times)
|
488 | eb58f9b1 | Guido Trotter | |
489 | eb58f9b1 | Guido Trotter | def GetAllInstancesInfo(self): |
490 | eb58f9b1 | Guido Trotter | """Get properties of all instances.
|
491 | eb58f9b1 | Guido Trotter |
|
492 | c41eea6e | Iustin Pop | @return: list of tuples (name, id, memory, vcpus, stat, times)
|
493 | c41eea6e | Iustin Pop |
|
494 | eb58f9b1 | Guido Trotter | """
|
495 | eb58f9b1 | Guido Trotter | data = [] |
496 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
497 | 263b8de6 | Guido Trotter | try:
|
498 | 263b8de6 | Guido Trotter | info = self.GetInstanceInfo(name)
|
499 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
500 | 263b8de6 | Guido Trotter | continue
|
501 | 263b8de6 | Guido Trotter | if info:
|
502 | 263b8de6 | Guido Trotter | data.append(info) |
503 | eb58f9b1 | Guido Trotter | return data
|
504 | eb58f9b1 | Guido Trotter | |
505 | 07813a9e | Iustin Pop | def _GenerateKVMRuntime(self, instance, block_devices): |
506 | ee5f20b0 | Guido Trotter | """Generate KVM information to start an instance.
|
507 | eb58f9b1 | Guido Trotter |
|
508 | eb58f9b1 | Guido Trotter | """
|
509 | 4304964a | Guido Trotter | kvm_version = self._GetKVMVersion()
|
510 | 4304964a | Guido Trotter | if kvm_version:
|
511 | 4304964a | Guido Trotter | _, v_major, v_min, _ = kvm_version |
512 | 4304964a | Guido Trotter | else:
|
513 | 4304964a | Guido Trotter | raise errors.HypervisorError("Unable to get KVM version") |
514 | 4304964a | Guido Trotter | |
515 | 98ec75d6 | Iustin Pop | pidfile = self._InstancePidFile(instance.name)
|
516 | eb58f9b1 | Guido Trotter | kvm = constants.KVM_PATH |
517 | eb58f9b1 | Guido Trotter | kvm_cmd = [kvm] |
518 | c6a39fc2 | Guido Trotter | # used just by the vnc server, if enabled
|
519 | c6a39fc2 | Guido Trotter | kvm_cmd.extend(['-name', instance.name])
|
520 | 8b3fd458 | Iustin Pop | kvm_cmd.extend(['-m', instance.beparams[constants.BE_MEMORY]])
|
521 | 8b3fd458 | Iustin Pop | kvm_cmd.extend(['-smp', instance.beparams[constants.BE_VCPUS]])
|
522 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-pidfile', pidfile])
|
523 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-daemonize'])
|
524 | 6b5605e8 | Iustin Pop | if not instance.hvparams[constants.HV_ACPI]: |
525 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-no-acpi'])
|
526 | eb58f9b1 | Guido Trotter | |
527 | a985b417 | Iustin Pop | hvp = instance.hvparams |
528 | 835528af | Iustin Pop | boot_disk = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_DISK |
529 | 835528af | Iustin Pop | boot_cdrom = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_CDROM |
530 | fba7f911 | Marco Casavecchia | boot_floppy = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_FLOPPY |
531 | 835528af | Iustin Pop | boot_network = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_NETWORK |
532 | 8745c3d7 | Guido Trotter | |
533 | 7ba594c0 | Guido Trotter | if hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_ENABLED:
|
534 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-enable-kvm"])
|
535 | 7ba594c0 | Guido Trotter | elif hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_DISABLED:
|
536 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-disable-kvm"])
|
537 | 7ba594c0 | Guido Trotter | |
538 | 8745c3d7 | Guido Trotter | if boot_network:
|
539 | 8745c3d7 | Guido Trotter | kvm_cmd.extend(['-boot', 'n']) |
540 | 1213604d | Guido Trotter | |
541 | a985b417 | Iustin Pop | disk_type = hvp[constants.HV_DISK_TYPE] |
542 | 1213604d | Guido Trotter | if disk_type == constants.HT_DISK_PARAVIRTUAL:
|
543 | 1213604d | Guido Trotter | if_val = ',if=virtio'
|
544 | 1213604d | Guido Trotter | else:
|
545 | 1213604d | Guido Trotter | if_val = ',if=%s' % disk_type
|
546 | 19572932 | Iustin Pop | # Cache mode
|
547 | 19572932 | Iustin Pop | disk_cache = hvp[constants.HV_DISK_CACHE] |
548 | 19572932 | Iustin Pop | if disk_cache != constants.HT_CACHE_DEFAULT:
|
549 | 19572932 | Iustin Pop | cache_val = ",cache=%s" % disk_cache
|
550 | 19572932 | Iustin Pop | else:
|
551 | 19572932 | Iustin Pop | cache_val = ""
|
552 | 069cfbf1 | Iustin Pop | for cfdev, dev_path in block_devices: |
553 | d34b16d7 | Iustin Pop | if cfdev.mode != constants.DISK_RDWR:
|
554 | d34b16d7 | Iustin Pop | raise errors.HypervisorError("Instance has read-only disks which" |
555 | d34b16d7 | Iustin Pop | " are not supported by KVM")
|
556 | eb58f9b1 | Guido Trotter | # TODO: handle FD_LOOP and FD_BLKTAP (?)
|
557 | 4304964a | Guido Trotter | boot_val = ""
|
558 | 66d5dbef | Guido Trotter | if boot_disk:
|
559 | 9dd363eb | Guido Trotter | kvm_cmd.extend(['-boot', 'c']) |
560 | 66d5dbef | Guido Trotter | boot_disk = False
|
561 | 4304964a | Guido Trotter | if (v_major, v_min) < (0, 14) and disk_type != constants.HT_DISK_IDE: |
562 | 4304964a | Guido Trotter | boot_val = ",boot=on"
|
563 | eb58f9b1 | Guido Trotter | |
564 | 19572932 | Iustin Pop | drive_val = 'file=%s,format=raw%s%s%s' % (dev_path, if_val, boot_val,
|
565 | 19572932 | Iustin Pop | cache_val) |
566 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-drive', drive_val])
|
567 | eb58f9b1 | Guido Trotter | |
568 | fba7f911 | Marco Casavecchia | #Now we can specify a different device type for CDROM devices.
|
569 | fba7f911 | Marco Casavecchia | cdrom_disk_type = hvp[constants.HV_KVM_CDROM_DISK_TYPE] |
570 | fba7f911 | Marco Casavecchia | if not cdrom_disk_type: |
571 | fba7f911 | Marco Casavecchia | cdrom_disk_type = disk_type |
572 | fba7f911 | Marco Casavecchia | |
573 | a985b417 | Iustin Pop | iso_image = hvp[constants.HV_CDROM_IMAGE_PATH] |
574 | 66d5dbef | Guido Trotter | if iso_image:
|
575 | 9dd363eb | Guido Trotter | options = ',format=raw,media=cdrom'
|
576 | 66d5dbef | Guido Trotter | if boot_cdrom:
|
577 | 9dd363eb | Guido Trotter | kvm_cmd.extend(['-boot', 'd']) |
578 | fba7f911 | Marco Casavecchia | if cdrom_disk_type != constants.HT_DISK_IDE:
|
579 | fba7f911 | Marco Casavecchia | options = '%s,boot=on,if=%s' % (options, constants.HT_DISK_IDE)
|
580 | fba7f911 | Marco Casavecchia | else:
|
581 | 74a4c11b | Guido Trotter | options = '%s,boot=on' % options
|
582 | 9dd363eb | Guido Trotter | else:
|
583 | fba7f911 | Marco Casavecchia | if cdrom_disk_type == constants.HT_DISK_PARAVIRTUAL:
|
584 | 9cf4321f | Apollon Oikonomopoulos | if_val = ',if=virtio'
|
585 | 9cf4321f | Apollon Oikonomopoulos | else:
|
586 | fba7f911 | Marco Casavecchia | if_val = ',if=%s' % cdrom_disk_type
|
587 | 9cf4321f | Apollon Oikonomopoulos | options = '%s%s' % (options, if_val)
|
588 | 66d5dbef | Guido Trotter | drive_val = 'file=%s%s' % (iso_image, options)
|
589 | 66d5dbef | Guido Trotter | kvm_cmd.extend(['-drive', drive_val])
|
590 | 66d5dbef | Guido Trotter | |
591 | fba7f911 | Marco Casavecchia | iso_image2 = hvp[constants.HV_KVM_CDROM2_IMAGE_PATH] |
592 | fba7f911 | Marco Casavecchia | if iso_image2:
|
593 | fba7f911 | Marco Casavecchia | options = ',format=raw,media=cdrom'
|
594 | fba7f911 | Marco Casavecchia | if cdrom_disk_type == constants.HT_DISK_PARAVIRTUAL:
|
595 | fba7f911 | Marco Casavecchia | if_val = ',if=virtio'
|
596 | fba7f911 | Marco Casavecchia | else:
|
597 | fba7f911 | Marco Casavecchia | if_val = ',if=%s' % cdrom_disk_type
|
598 | fba7f911 | Marco Casavecchia | options = '%s%s' % (options, if_val)
|
599 | fba7f911 | Marco Casavecchia | drive_val = 'file=%s%s' % (iso_image2, options)
|
600 | fba7f911 | Marco Casavecchia | kvm_cmd.extend(['-drive', drive_val])
|
601 | fba7f911 | Marco Casavecchia | |
602 | fba7f911 | Marco Casavecchia | floppy_image = hvp[constants.HV_KVM_FLOPPY_IMAGE_PATH] |
603 | fba7f911 | Marco Casavecchia | if floppy_image:
|
604 | fba7f911 | Marco Casavecchia | options = ',format=raw,media=disk'
|
605 | fba7f911 | Marco Casavecchia | if boot_floppy:
|
606 | fba7f911 | Marco Casavecchia | kvm_cmd.extend(['-boot', 'a']) |
607 | fba7f911 | Marco Casavecchia | options = '%s,boot=on' % options
|
608 | fba7f911 | Marco Casavecchia | if_val = ',if=floppy'
|
609 | fba7f911 | Marco Casavecchia | options = '%s%s' % (options, if_val)
|
610 | fba7f911 | Marco Casavecchia | drive_val = 'file=%s%s' % (floppy_image, options)
|
611 | fba7f911 | Marco Casavecchia | kvm_cmd.extend(['-drive', drive_val])
|
612 | fba7f911 | Marco Casavecchia | |
613 | a985b417 | Iustin Pop | kernel_path = hvp[constants.HV_KERNEL_PATH] |
614 | df5ab9f0 | Guido Trotter | if kernel_path:
|
615 | df5ab9f0 | Guido Trotter | kvm_cmd.extend(['-kernel', kernel_path])
|
616 | a985b417 | Iustin Pop | initrd_path = hvp[constants.HV_INITRD_PATH] |
617 | df5ab9f0 | Guido Trotter | if initrd_path:
|
618 | df5ab9f0 | Guido Trotter | kvm_cmd.extend(['-initrd', initrd_path])
|
619 | 07813a9e | Iustin Pop | root_append = ['root=%s' % hvp[constants.HV_ROOT_PATH],
|
620 | 07813a9e | Iustin Pop | hvp[constants.HV_KERNEL_ARGS]] |
621 | 07813a9e | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
622 | 07813a9e | Iustin Pop | root_append.append('console=ttyS0,38400')
|
623 | 07813a9e | Iustin Pop | kvm_cmd.extend(['-append', ' '.join(root_append)]) |
624 | eb58f9b1 | Guido Trotter | |
625 | 4f958b0b | Miguel Di Ciurcio Filho | mem_path = hvp[constants.HV_MEM_PATH] |
626 | 4f958b0b | Miguel Di Ciurcio Filho | if mem_path:
|
627 | 9d3015f9 | Guido Trotter | kvm_cmd.extend(["-mem-path", mem_path, "-mem-prealloc"]) |
628 | 4f958b0b | Miguel Di Ciurcio Filho | |
629 | a985b417 | Iustin Pop | mouse_type = hvp[constants.HV_USB_MOUSE] |
630 | 31f6f67a | Guido Trotter | vnc_bind_address = hvp[constants.HV_VNC_BIND_ADDRESS] |
631 | 31f6f67a | Guido Trotter | |
632 | 11344a50 | Guido Trotter | if mouse_type:
|
633 | 11344a50 | Guido Trotter | kvm_cmd.extend(['-usb'])
|
634 | 11344a50 | Guido Trotter | kvm_cmd.extend(['-usbdevice', mouse_type])
|
635 | 31f6f67a | Guido Trotter | elif vnc_bind_address:
|
636 | 31f6f67a | Guido Trotter | kvm_cmd.extend(['-usbdevice', constants.HT_MOUSE_TABLET])
|
637 | 11344a50 | Guido Trotter | |
638 | 8470c8db | Guido Trotter | if vnc_bind_address:
|
639 | 8b312c1d | Manuel Franceschini | if netutils.IP4Address.IsValid(vnc_bind_address):
|
640 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
641 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
642 | 14f5f1b6 | Manuel Franceschini | if vnc_bind_address == constants.IP4_ADDRESS_ANY:
|
643 | 8447f52b | Guido Trotter | vnc_arg = ':%d' % (display)
|
644 | 8447f52b | Guido Trotter | else:
|
645 | 19498d6c | Guido Trotter | vnc_arg = '%s:%d' % (vnc_bind_address, display)
|
646 | 8470c8db | Guido Trotter | else:
|
647 | 8447f52b | Guido Trotter | logging.error("Network port is not a valid VNC display (%d < %d)."
|
648 | 07b8a2b5 | Iustin Pop | " Not starting VNC", instance.network_port,
|
649 | 07b8a2b5 | Iustin Pop | constants.VNC_BASE_PORT) |
650 | 8447f52b | Guido Trotter | vnc_arg = 'none'
|
651 | 8b2d1013 | Guido Trotter | |
652 | 8b2d1013 | Guido Trotter | # Only allow tls and other option when not binding to a file, for now.
|
653 | 8b2d1013 | Guido Trotter | # kvm/qemu gets confused otherwise about the filename to use.
|
654 | 8b2d1013 | Guido Trotter | vnc_append = ''
|
655 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_TLS]:
|
656 | 8b2d1013 | Guido Trotter | vnc_append = '%s,tls' % vnc_append
|
657 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_X509_VERIFY]:
|
658 | 8b2d1013 | Guido Trotter | vnc_append = '%s,x509verify=%s' % (vnc_append,
|
659 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
660 | a985b417 | Iustin Pop | elif hvp[constants.HV_VNC_X509]:
|
661 | 8b2d1013 | Guido Trotter | vnc_append = '%s,x509=%s' % (vnc_append,
|
662 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
663 | 6e6bb8d5 | Guido Trotter | if hvp[constants.HV_VNC_PASSWORD_FILE]:
|
664 | 6e6bb8d5 | Guido Trotter | vnc_append = '%s,password' % vnc_append
|
665 | 6e6bb8d5 | Guido Trotter | |
666 | 8b2d1013 | Guido Trotter | vnc_arg = '%s%s' % (vnc_arg, vnc_append)
|
667 | 8b2d1013 | Guido Trotter | |
668 | 8470c8db | Guido Trotter | else:
|
669 | 8b2d1013 | Guido Trotter | vnc_arg = 'unix:%s/%s.vnc' % (vnc_bind_address, instance.name)
|
670 | 8b2d1013 | Guido Trotter | |
671 | 8447f52b | Guido Trotter | kvm_cmd.extend(['-vnc', vnc_arg])
|
672 | 8470c8db | Guido Trotter | else:
|
673 | 8470c8db | Guido Trotter | kvm_cmd.extend(['-nographic'])
|
674 | 8470c8db | Guido Trotter | |
675 | 69b99987 | Michael Hanselmann | monitor_dev = ("unix:%s,server,nowait" %
|
676 | 69b99987 | Michael Hanselmann | self._InstanceMonitor(instance.name))
|
677 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-monitor', monitor_dev])
|
678 | a985b417 | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
679 | a985b417 | Iustin Pop | serial_dev = ('unix:%s,server,nowait' %
|
680 | a985b417 | Iustin Pop | self._InstanceSerial(instance.name))
|
681 | a2faf9ee | Guido Trotter | kvm_cmd.extend(['-serial', serial_dev])
|
682 | a2faf9ee | Guido Trotter | else:
|
683 | a2faf9ee | Guido Trotter | kvm_cmd.extend(['-serial', 'none']) |
684 | eb58f9b1 | Guido Trotter | |
685 | 6b970cef | Jun Futagawa | if hvp[constants.HV_USE_LOCALTIME]:
|
686 | 6b970cef | Jun Futagawa | kvm_cmd.extend(['-localtime'])
|
687 | 6b970cef | Jun Futagawa | |
688 | 547a63b7 | Balazs Lecz | if hvp[constants.HV_KVM_USE_CHROOT]:
|
689 | 547a63b7 | Balazs Lecz | kvm_cmd.extend(['-chroot', self._InstanceChrootDir(instance.name)]) |
690 | 547a63b7 | Balazs Lecz | |
691 | ee5f20b0 | Guido Trotter | # Save the current instance nics, but defer their expansion as parameters,
|
692 | ee5f20b0 | Guido Trotter | # as we'll need to generate executable temp files for them.
|
693 | ee5f20b0 | Guido Trotter | kvm_nics = instance.nics |
694 | a985b417 | Iustin Pop | hvparams = hvp |
695 | ee5f20b0 | Guido Trotter | |
696 | c2672466 | Guido Trotter | return (kvm_cmd, kvm_nics, hvparams)
|
697 | ee5f20b0 | Guido Trotter | |
698 | 38e250ba | Guido Trotter | def _WriteKVMRuntime(self, instance_name, data): |
699 | 38e250ba | Guido Trotter | """Write an instance's KVM runtime
|
700 | 38e250ba | Guido Trotter |
|
701 | 38e250ba | Guido Trotter | """
|
702 | 38e250ba | Guido Trotter | try:
|
703 | 38e250ba | Guido Trotter | utils.WriteFile(self._InstanceKVMRuntime(instance_name),
|
704 | 38e250ba | Guido Trotter | data=data) |
705 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
706 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to save KVM runtime file: %s" % err) |
707 | 38e250ba | Guido Trotter | |
708 | 38e250ba | Guido Trotter | def _ReadKVMRuntime(self, instance_name): |
709 | 38e250ba | Guido Trotter | """Read an instance's KVM runtime
|
710 | 38e250ba | Guido Trotter |
|
711 | 38e250ba | Guido Trotter | """
|
712 | 38e250ba | Guido Trotter | try:
|
713 | 38e250ba | Guido Trotter | file_content = utils.ReadFile(self._InstanceKVMRuntime(instance_name))
|
714 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
715 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to load KVM runtime file: %s" % err) |
716 | 38e250ba | Guido Trotter | return file_content
|
717 | 38e250ba | Guido Trotter | |
718 | 38e250ba | Guido Trotter | def _SaveKVMRuntime(self, instance, kvm_runtime): |
719 | 38e250ba | Guido Trotter | """Save an instance's KVM runtime
|
720 | 38e250ba | Guido Trotter |
|
721 | 38e250ba | Guido Trotter | """
|
722 | c2672466 | Guido Trotter | kvm_cmd, kvm_nics, hvparams = kvm_runtime |
723 | 38e250ba | Guido Trotter | serialized_nics = [nic.ToDict() for nic in kvm_nics] |
724 | c2672466 | Guido Trotter | serialized_form = serializer.Dump((kvm_cmd, serialized_nics, hvparams)) |
725 | 38e250ba | Guido Trotter | self._WriteKVMRuntime(instance.name, serialized_form)
|
726 | 38e250ba | Guido Trotter | |
727 | 30e42c4e | Guido Trotter | def _LoadKVMRuntime(self, instance, serialized_runtime=None): |
728 | 38e250ba | Guido Trotter | """Load an instance's KVM runtime
|
729 | 38e250ba | Guido Trotter |
|
730 | 38e250ba | Guido Trotter | """
|
731 | 30e42c4e | Guido Trotter | if not serialized_runtime: |
732 | 30e42c4e | Guido Trotter | serialized_runtime = self._ReadKVMRuntime(instance.name)
|
733 | 30e42c4e | Guido Trotter | loaded_runtime = serializer.Load(serialized_runtime) |
734 | c2672466 | Guido Trotter | kvm_cmd, serialized_nics, hvparams = loaded_runtime |
735 | 38e250ba | Guido Trotter | kvm_nics = [objects.NIC.FromDict(snic) for snic in serialized_nics] |
736 | c2672466 | Guido Trotter | return (kvm_cmd, kvm_nics, hvparams)
|
737 | 38e250ba | Guido Trotter | |
738 | 5d9bfd87 | Apollon Oikonomopoulos | def _RunKVMCmd(self, name, kvm_cmd, tap_fds=None): |
739 | 76431533 | Guido Trotter | """Run the KVM cmd and check for errors
|
740 | 76431533 | Guido Trotter |
|
741 | 76431533 | Guido Trotter | @type name: string
|
742 | 76431533 | Guido Trotter | @param name: instance name
|
743 | 76431533 | Guido Trotter | @type kvm_cmd: list of strings
|
744 | 76431533 | Guido Trotter | @param kvm_cmd: runcmd input for kvm
|
745 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap_fds: list of int
|
746 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap_fds: fds of tap devices opened by Ganeti
|
747 | 76431533 | Guido Trotter |
|
748 | 76431533 | Guido Trotter | """
|
749 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
750 | 5d9bfd87 | Apollon Oikonomopoulos | result = utils.RunCmd(kvm_cmd, noclose_fds=tap_fds) |
751 | 5d9bfd87 | Apollon Oikonomopoulos | finally:
|
752 | 5d9bfd87 | Apollon Oikonomopoulos | for fd in tap_fds: |
753 | 5d9bfd87 | Apollon Oikonomopoulos | utils_wrapper.CloseFdNoError(fd) |
754 | 5d9bfd87 | Apollon Oikonomopoulos | |
755 | 76431533 | Guido Trotter | if result.failed:
|
756 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s: %s (%s)" % |
757 | 76431533 | Guido Trotter | (name, result.fail_reason, result.output)) |
758 | 76431533 | Guido Trotter | if not self._InstancePidAlive(name)[2]: |
759 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s" % name) |
760 | 76431533 | Guido Trotter | |
761 | 30e42c4e | Guido Trotter | def _ExecuteKVMRuntime(self, instance, kvm_runtime, incoming=None): |
762 | ee5f20b0 | Guido Trotter | """Execute a KVM cmd, after completing it with some last minute data
|
763 | ee5f20b0 | Guido Trotter |
|
764 | 30e42c4e | Guido Trotter | @type incoming: tuple of strings
|
765 | 30e42c4e | Guido Trotter | @param incoming: (target_host_ip, port)
|
766 | 30e42c4e | Guido Trotter |
|
767 | ee5f20b0 | Guido Trotter | """
|
768 | 297e6e53 | Guido Trotter | # Small _ExecuteKVMRuntime hv parameters programming howto:
|
769 | 297e6e53 | Guido Trotter | # - conf_hvp contains the parameters as configured on ganeti. they might
|
770 | 297e6e53 | Guido Trotter | # have changed since the instance started; only use them if the change
|
771 | 297e6e53 | Guido Trotter | # won't affect the inside of the instance (which hasn't been rebooted).
|
772 | 297e6e53 | Guido Trotter | # - up_hvp contains the parameters as they were when the instance was
|
773 | 297e6e53 | Guido Trotter | # started, plus any new parameter which has been added between ganeti
|
774 | 297e6e53 | Guido Trotter | # versions: it is paramount that those default to a value which won't
|
775 | 297e6e53 | Guido Trotter | # affect the inside of the instance as well.
|
776 | 297e6e53 | Guido Trotter | conf_hvp = instance.hvparams |
777 | 5905901c | Iustin Pop | name = instance.name |
778 | 5905901c | Iustin Pop | self._CheckDown(name)
|
779 | ee5f20b0 | Guido Trotter | |
780 | ee5f20b0 | Guido Trotter | temp_files = [] |
781 | ee5f20b0 | Guido Trotter | |
782 | 297e6e53 | Guido Trotter | kvm_cmd, kvm_nics, up_hvp = kvm_runtime |
783 | 297e6e53 | Guido Trotter | up_hvp = objects.FillDict(conf_hvp, up_hvp) |
784 | ee5f20b0 | Guido Trotter | |
785 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_version = self._GetKVMVersion()
|
786 | 4b784cf8 | Miguel Di Ciurcio Filho | if kvm_version:
|
787 | 049383d9 | Adeodato Simo | _, v_major, v_min, _ = kvm_version |
788 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
789 | 4b784cf8 | Miguel Di Ciurcio Filho | raise errors.HypervisorError("Unable to get KVM version") |
790 | 4b784cf8 | Miguel Di Ciurcio Filho | |
791 | 297e6e53 | Guido Trotter | # We know it's safe to run as a different user upon migration, so we'll use
|
792 | 297e6e53 | Guido Trotter | # the latest conf, from conf_hvp.
|
793 | 297e6e53 | Guido Trotter | security_model = conf_hvp[constants.HV_SECURITY_MODEL] |
794 | cef34868 | Guido Trotter | if security_model == constants.HT_SM_USER:
|
795 | 297e6e53 | Guido Trotter | kvm_cmd.extend(["-runas", conf_hvp[constants.HV_SECURITY_DOMAIN]])
|
796 | cef34868 | Guido Trotter | |
797 | 297e6e53 | Guido Trotter | # We have reasons to believe changing something like the nic driver/type
|
798 | 297e6e53 | Guido Trotter | # upon migration won't exactly fly with the instance kernel, so for nic
|
799 | 297e6e53 | Guido Trotter | # related parameters we'll use up_hvp
|
800 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds = [] |
801 | 5d9bfd87 | Apollon Oikonomopoulos | taps = [] |
802 | ee5f20b0 | Guido Trotter | if not kvm_nics: |
803 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", "none"]) |
804 | ee5f20b0 | Guido Trotter | else:
|
805 | 5d9bfd87 | Apollon Oikonomopoulos | vnet_hdr = False
|
806 | fbe27e2b | Guido Trotter | tap_extra = ""
|
807 | 297e6e53 | Guido Trotter | nic_type = up_hvp[constants.HV_NIC_TYPE] |
808 | 37f88dc6 | Guido Trotter | if nic_type == constants.HT_NIC_PARAVIRTUAL:
|
809 | 4b784cf8 | Miguel Di Ciurcio Filho | # From version 0.12.0, kvm uses a new sintax for network configuration.
|
810 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 12): |
811 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = "virtio-net-pci"
|
812 | 5d9bfd87 | Apollon Oikonomopoulos | vnet_hdr = True
|
813 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
814 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = "virtio"
|
815 | 4b784cf8 | Miguel Di Ciurcio Filho | |
816 | 297e6e53 | Guido Trotter | if up_hvp[constants.HV_VHOST_NET]:
|
817 | 4b784cf8 | Miguel Di Ciurcio Filho | # vhost_net is only available from version 0.13.0 or newer
|
818 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 13): |
819 | 4b784cf8 | Miguel Di Ciurcio Filho | tap_extra = ",vhost=on"
|
820 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
821 | 4b784cf8 | Miguel Di Ciurcio Filho | raise errors.HypervisorError("vhost_net is configured" |
822 | 4b784cf8 | Miguel Di Ciurcio Filho | " but it is not available")
|
823 | 37f88dc6 | Guido Trotter | else:
|
824 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = nic_type |
825 | 37f88dc6 | Guido Trotter | |
826 | ee5f20b0 | Guido Trotter | for nic_seq, nic in enumerate(kvm_nics): |
827 | 5d9bfd87 | Apollon Oikonomopoulos | tapname, tapfd = _OpenTap(vnet_hdr) |
828 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds.append(tapfd) |
829 | 5d9bfd87 | Apollon Oikonomopoulos | taps.append(tapname) |
830 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 12): |
831 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_val = "%s,mac=%s,netdev=netdev%s" % (nic_model, nic.mac, nic_seq)
|
832 | 5d9bfd87 | Apollon Oikonomopoulos | tap_val = "type=tap,id=netdev%s,fd=%d%s" % (nic_seq, tapfd, tap_extra)
|
833 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-netdev", tap_val, "-device", nic_val]) |
834 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
835 | 049383d9 | Adeodato Simo | nic_val = "nic,vlan=%s,macaddr=%s,model=%s" % (nic_seq,
|
836 | 049383d9 | Adeodato Simo | nic.mac, nic_model) |
837 | 5d9bfd87 | Apollon Oikonomopoulos | tap_val = "tap,vlan=%s,fd=%d" % (nic_seq, tapfd)
|
838 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-net", tap_val, "-net", nic_val]) |
839 | ee5f20b0 | Guido Trotter | |
840 | 30e42c4e | Guido Trotter | if incoming:
|
841 | 30e42c4e | Guido Trotter | target, port = incoming |
842 | 30e42c4e | Guido Trotter | kvm_cmd.extend(['-incoming', 'tcp:%s:%s' % (target, port)]) |
843 | 30e42c4e | Guido Trotter | |
844 | 297e6e53 | Guido Trotter | # Changing the vnc password doesn't bother the guest that much. At most it
|
845 | 297e6e53 | Guido Trotter | # will surprise people who connect to it. Whether positively or negatively
|
846 | 297e6e53 | Guido Trotter | # it's debatable.
|
847 | 297e6e53 | Guido Trotter | vnc_pwd_file = conf_hvp[constants.HV_VNC_PASSWORD_FILE] |
848 | 6e6bb8d5 | Guido Trotter | vnc_pwd = None
|
849 | 6e6bb8d5 | Guido Trotter | if vnc_pwd_file:
|
850 | 6e6bb8d5 | Guido Trotter | try:
|
851 | 682f7601 | Guido Trotter | vnc_pwd = utils.ReadOneLineFile(vnc_pwd_file, strict=True)
|
852 | 6e6bb8d5 | Guido Trotter | except EnvironmentError, err: |
853 | 6e6bb8d5 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" |
854 | 6e6bb8d5 | Guido Trotter | % (vnc_pwd_file, err)) |
855 | 6e6bb8d5 | Guido Trotter | |
856 | 297e6e53 | Guido Trotter | if conf_hvp[constants.HV_KVM_USE_CHROOT]:
|
857 | 547a63b7 | Balazs Lecz | utils.EnsureDirs([(self._InstanceChrootDir(name),
|
858 | 547a63b7 | Balazs Lecz | constants.SECURE_DIR_MODE)]) |
859 | 547a63b7 | Balazs Lecz | |
860 | 5d9bfd87 | Apollon Oikonomopoulos | if not incoming: |
861 | 5d9bfd87 | Apollon Oikonomopoulos | # Configure the network now for starting instances, during
|
862 | 5d9bfd87 | Apollon Oikonomopoulos | # FinalizeMigration for incoming instances
|
863 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
864 | 5d9bfd87 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, taps[nic_seq])
|
865 | 5d9bfd87 | Apollon Oikonomopoulos | |
866 | 76431533 | Guido Trotter | if security_model == constants.HT_SM_POOL:
|
867 | 76431533 | Guido Trotter | ss = ssconf.SimpleStore() |
868 | 76431533 | Guido Trotter | uid_pool = uidpool.ParseUidPool(ss.GetUidPool(), separator="\n")
|
869 | 76431533 | Guido Trotter | all_uids = set(uidpool.ExpandUidPool(uid_pool))
|
870 | 76431533 | Guido Trotter | uid = uidpool.RequestUnusedUid(all_uids) |
871 | 76431533 | Guido Trotter | try:
|
872 | 76431533 | Guido Trotter | username = pwd.getpwuid(uid.GetUid()).pw_name |
873 | 76431533 | Guido Trotter | kvm_cmd.extend(["-runas", username])
|
874 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
875 | 76431533 | Guido Trotter | except:
|
876 | 76431533 | Guido Trotter | uidpool.ReleaseUid(uid) |
877 | 76431533 | Guido Trotter | raise
|
878 | 76431533 | Guido Trotter | else:
|
879 | 76431533 | Guido Trotter | uid.Unlock() |
880 | 3af16328 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceUidFile(name), data=uid.AsStr())
|
881 | 76431533 | Guido Trotter | else:
|
882 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
883 | 5d9bfd87 | Apollon Oikonomopoulos | |
884 | 5d9bfd87 | Apollon Oikonomopoulos | utils.EnsureDirs([(self._InstanceNICDir(instance.name),
|
885 | 5d9bfd87 | Apollon Oikonomopoulos | constants.RUN_DIRS_MODE)]) |
886 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, tap in enumerate(taps): |
887 | 5d9bfd87 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceNICFile(instance.name, nic_seq),
|
888 | 5d9bfd87 | Apollon Oikonomopoulos | data=tap) |
889 | eb58f9b1 | Guido Trotter | |
890 | 6e6bb8d5 | Guido Trotter | if vnc_pwd:
|
891 | 6e6bb8d5 | Guido Trotter | change_cmd = 'change vnc password %s' % vnc_pwd
|
892 | 6e6bb8d5 | Guido Trotter | self._CallMonitorCommand(instance.name, change_cmd)
|
893 | 6e6bb8d5 | Guido Trotter | |
894 | 08137f9e | Iustin Pop | for filename in temp_files: |
895 | 08137f9e | Iustin Pop | utils.RemoveFile(filename) |
896 | eb58f9b1 | Guido Trotter | |
897 | 07813a9e | Iustin Pop | def StartInstance(self, instance, block_devices): |
898 | ee5f20b0 | Guido Trotter | """Start an instance.
|
899 | ee5f20b0 | Guido Trotter |
|
900 | ee5f20b0 | Guido Trotter | """
|
901 | 5905901c | Iustin Pop | self._CheckDown(instance.name)
|
902 | 07813a9e | Iustin Pop | kvm_runtime = self._GenerateKVMRuntime(instance, block_devices)
|
903 | 38e250ba | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
904 | ee5f20b0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
905 | ee5f20b0 | Guido Trotter | |
906 | 6567aff3 | Guido Trotter | def _CallMonitorCommand(self, instance_name, command): |
907 | 6567aff3 | Guido Trotter | """Invoke a command on the instance monitor.
|
908 | 6567aff3 | Guido Trotter |
|
909 | 6567aff3 | Guido Trotter | """
|
910 | 6567aff3 | Guido Trotter | socat = ("echo %s | %s STDIO UNIX-CONNECT:%s" %
|
911 | 6567aff3 | Guido Trotter | (utils.ShellQuote(command), |
912 | 6567aff3 | Guido Trotter | constants.SOCAT_PATH, |
913 | 6567aff3 | Guido Trotter | utils.ShellQuote(self._InstanceMonitor(instance_name))))
|
914 | 6567aff3 | Guido Trotter | result = utils.RunCmd(socat) |
915 | 6567aff3 | Guido Trotter | if result.failed:
|
916 | 6567aff3 | Guido Trotter | msg = ("Failed to send command '%s' to instance %s."
|
917 | 6567aff3 | Guido Trotter | " output: %s, error: %s, fail_reason: %s" %
|
918 | 9798fcae | Guido Trotter | (command, instance_name, |
919 | 9798fcae | Guido Trotter | result.stdout, result.stderr, result.fail_reason)) |
920 | 6567aff3 | Guido Trotter | raise errors.HypervisorError(msg)
|
921 | 6567aff3 | Guido Trotter | |
922 | 6567aff3 | Guido Trotter | return result
|
923 | 6567aff3 | Guido Trotter | |
924 | b52d85c1 | Guido Trotter | @classmethod
|
925 | b52d85c1 | Guido Trotter | def _GetKVMVersion(cls): |
926 | b52d85c1 | Guido Trotter | """Return the installed KVM version
|
927 | b52d85c1 | Guido Trotter |
|
928 | b52d85c1 | Guido Trotter | @return: (version, v_maj, v_min, v_rev), or None
|
929 | b52d85c1 | Guido Trotter |
|
930 | b52d85c1 | Guido Trotter | """
|
931 | b52d85c1 | Guido Trotter | result = utils.RunCmd([constants.KVM_PATH, "--help"])
|
932 | b52d85c1 | Guido Trotter | if result.failed:
|
933 | b52d85c1 | Guido Trotter | return None |
934 | b52d85c1 | Guido Trotter | match = cls._VERSION_RE.search(result.output.splitlines()[0])
|
935 | b52d85c1 | Guido Trotter | if not match: |
936 | b52d85c1 | Guido Trotter | return None |
937 | 3f2eba25 | Miguel Di Ciurcio Filho | |
938 | 3f2eba25 | Miguel Di Ciurcio Filho | return (match.group(0), int(match.group(1)), int(match.group(2)), |
939 | 3f2eba25 | Miguel Di Ciurcio Filho | int(match.group(3))) |
940 | b52d85c1 | Guido Trotter | |
941 | bbcf7ad0 | Iustin Pop | def StopInstance(self, instance, force=False, retry=False, name=None): |
942 | eb58f9b1 | Guido Trotter | """Stop an instance.
|
943 | eb58f9b1 | Guido Trotter |
|
944 | eb58f9b1 | Guido Trotter | """
|
945 | bbcf7ad0 | Iustin Pop | if name is not None and not force: |
946 | bbcf7ad0 | Iustin Pop | raise errors.HypervisorError("Cannot shutdown cleanly by name only") |
947 | bbcf7ad0 | Iustin Pop | if name is None: |
948 | bbcf7ad0 | Iustin Pop | name = instance.name |
949 | bbcf7ad0 | Iustin Pop | acpi = instance.hvparams[constants.HV_ACPI] |
950 | bbcf7ad0 | Iustin Pop | else:
|
951 | bbcf7ad0 | Iustin Pop | acpi = False
|
952 | 8904b35c | Guido Trotter | _, pid, alive = self._InstancePidAlive(name)
|
953 | 1f8b3a27 | Guido Trotter | if pid > 0 and alive: |
954 | bbcf7ad0 | Iustin Pop | if force or not acpi: |
955 | eb58f9b1 | Guido Trotter | utils.KillProcess(pid) |
956 | eb58f9b1 | Guido Trotter | else:
|
957 | bbcf7ad0 | Iustin Pop | self._CallMonitorCommand(name, 'system_powerdown') |
958 | eb58f9b1 | Guido Trotter | |
959 | 8904b35c | Guido Trotter | def CleanupInstance(self, instance_name): |
960 | 8904b35c | Guido Trotter | """Cleanup after a stopped instance
|
961 | 8904b35c | Guido Trotter |
|
962 | 8904b35c | Guido Trotter | """
|
963 | 8904b35c | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
964 | 8904b35c | Guido Trotter | if pid > 0 and alive: |
965 | 8904b35c | Guido Trotter | raise errors.HypervisorError("Cannot cleanup a live instance") |
966 | 8904b35c | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
967 | eb58f9b1 | Guido Trotter | |
968 | eb58f9b1 | Guido Trotter | def RebootInstance(self, instance): |
969 | eb58f9b1 | Guido Trotter | """Reboot an instance.
|
970 | eb58f9b1 | Guido Trotter |
|
971 | eb58f9b1 | Guido Trotter | """
|
972 | eb58f9b1 | Guido Trotter | # For some reason if we do a 'send-key ctrl-alt-delete' to the control
|
973 | eb58f9b1 | Guido Trotter | # socket the instance will stop, but now power up again. So we'll resort
|
974 | eb58f9b1 | Guido Trotter | # to shutdown and restart.
|
975 | 1122eb25 | Iustin Pop | _, _, alive = self._InstancePidAlive(instance.name)
|
976 | 1f8b3a27 | Guido Trotter | if not alive: |
977 | 78411c60 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s:" |
978 | 78411c60 | Iustin Pop | " not running" % instance.name)
|
979 | f02881e0 | Guido Trotter | # StopInstance will delete the saved KVM runtime so:
|
980 | f02881e0 | Guido Trotter | # ...first load it...
|
981 | f02881e0 | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance)
|
982 | f02881e0 | Guido Trotter | # ...now we can safely call StopInstance...
|
983 | f02881e0 | Guido Trotter | if not self.StopInstance(instance): |
984 | f02881e0 | Guido Trotter | self.StopInstance(instance, force=True) |
985 | f02881e0 | Guido Trotter | # ...and finally we can save it again, and execute it...
|
986 | f02881e0 | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
987 | f02881e0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
988 | eb58f9b1 | Guido Trotter | |
989 | 30e42c4e | Guido Trotter | def MigrationInfo(self, instance): |
990 | 30e42c4e | Guido Trotter | """Get instance information to perform a migration.
|
991 | 30e42c4e | Guido Trotter |
|
992 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
993 | 30e42c4e | Guido Trotter | @param instance: instance to be migrated
|
994 | 30e42c4e | Guido Trotter | @rtype: string
|
995 | 30e42c4e | Guido Trotter | @return: content of the KVM runtime file
|
996 | 30e42c4e | Guido Trotter |
|
997 | 30e42c4e | Guido Trotter | """
|
998 | 30e42c4e | Guido Trotter | return self._ReadKVMRuntime(instance.name) |
999 | 30e42c4e | Guido Trotter | |
1000 | 30e42c4e | Guido Trotter | def AcceptInstance(self, instance, info, target): |
1001 | 30e42c4e | Guido Trotter | """Prepare to accept an instance.
|
1002 | 30e42c4e | Guido Trotter |
|
1003 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
1004 | 30e42c4e | Guido Trotter | @param instance: instance to be accepted
|
1005 | 30e42c4e | Guido Trotter | @type info: string
|
1006 | 30e42c4e | Guido Trotter | @param info: content of the KVM runtime file on the source node
|
1007 | 30e42c4e | Guido Trotter | @type target: string
|
1008 | 30e42c4e | Guido Trotter | @param target: target host (usually ip), on this node
|
1009 | 30e42c4e | Guido Trotter |
|
1010 | 30e42c4e | Guido Trotter | """
|
1011 | 30e42c4e | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
1012 | 641ae041 | Iustin Pop | incoming_address = (target, instance.hvparams[constants.HV_MIGRATION_PORT]) |
1013 | 30e42c4e | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, incoming=incoming_address)
|
1014 | 30e42c4e | Guido Trotter | |
1015 | 30e42c4e | Guido Trotter | def FinalizeMigration(self, instance, info, success): |
1016 | 30e42c4e | Guido Trotter | """Finalize an instance migration.
|
1017 | 30e42c4e | Guido Trotter |
|
1018 | 30e42c4e | Guido Trotter | Stop the incoming mode KVM.
|
1019 | 30e42c4e | Guido Trotter |
|
1020 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
1021 | fea922fa | Guido Trotter | @param instance: instance whose migration is being finalized
|
1022 | 30e42c4e | Guido Trotter |
|
1023 | 30e42c4e | Guido Trotter | """
|
1024 | 30e42c4e | Guido Trotter | if success:
|
1025 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
1026 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_nics = kvm_runtime[1]
|
1027 | 5d9bfd87 | Apollon Oikonomopoulos | |
1028 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
1029 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1030 | 5d9bfd87 | Apollon Oikonomopoulos | tap = utils.ReadFile(self._InstanceNICFile(instance.name, nic_seq))
|
1031 | 5d9bfd87 | Apollon Oikonomopoulos | except EnvironmentError, err: |
1032 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning("Failed to find host interface for %s NIC #%d: %s",
|
1033 | 5d9bfd87 | Apollon Oikonomopoulos | instance.name, nic_seq, str(err))
|
1034 | 5d9bfd87 | Apollon Oikonomopoulos | continue
|
1035 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1036 | 5d9bfd87 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, tap)
|
1037 | 5d9bfd87 | Apollon Oikonomopoulos | except errors.HypervisorError, err:
|
1038 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning(str(err))
|
1039 | 5d9bfd87 | Apollon Oikonomopoulos | |
1040 | 30e42c4e | Guido Trotter | self._WriteKVMRuntime(instance.name, info)
|
1041 | 30e42c4e | Guido Trotter | else:
|
1042 | 30e42c4e | Guido Trotter | self.StopInstance(instance, force=True) |
1043 | 30e42c4e | Guido Trotter | |
1044 | 58d38b02 | Iustin Pop | def MigrateInstance(self, instance, target, live): |
1045 | 30e42c4e | Guido Trotter | """Migrate an instance to a target node.
|
1046 | 30e42c4e | Guido Trotter |
|
1047 | 30e42c4e | Guido Trotter | The migration will not be attempted if the instance is not
|
1048 | 30e42c4e | Guido Trotter | currently running.
|
1049 | 30e42c4e | Guido Trotter |
|
1050 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
1051 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
1052 | 30e42c4e | Guido Trotter | @type target: string
|
1053 | 30e42c4e | Guido Trotter | @param target: ip address of the target node
|
1054 | 30e42c4e | Guido Trotter | @type live: boolean
|
1055 | 30e42c4e | Guido Trotter | @param live: perform a live migration
|
1056 | 30e42c4e | Guido Trotter |
|
1057 | 30e42c4e | Guido Trotter | """
|
1058 | 58d38b02 | Iustin Pop | instance_name = instance.name |
1059 | 50716be0 | Iustin Pop | port = instance.hvparams[constants.HV_MIGRATION_PORT] |
1060 | 30e42c4e | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
1061 | 30e42c4e | Guido Trotter | if not alive: |
1062 | 30e42c4e | Guido Trotter | raise errors.HypervisorError("Instance not running, cannot migrate") |
1063 | 30e42c4e | Guido Trotter | |
1064 | 30e42c4e | Guido Trotter | if not live: |
1065 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, 'stop') |
1066 | 30e42c4e | Guido Trotter | |
1067 | e43d4f9f | Apollon Oikonomopoulos | migrate_command = ('migrate_set_speed %dm' %
|
1068 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_BANDWIDTH]) |
1069 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
1070 | e43d4f9f | Apollon Oikonomopoulos | |
1071 | e43d4f9f | Apollon Oikonomopoulos | migrate_command = ('migrate_set_downtime %dms' %
|
1072 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_DOWNTIME]) |
1073 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
1074 | e43d4f9f | Apollon Oikonomopoulos | |
1075 | 641ae041 | Iustin Pop | migrate_command = 'migrate -d tcp:%s:%s' % (target, port)
|
1076 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, migrate_command)
|
1077 | 30e42c4e | Guido Trotter | |
1078 | 30e42c4e | Guido Trotter | info_command = 'info migrate'
|
1079 | 30e42c4e | Guido Trotter | done = False
|
1080 | c4e388a5 | Guido Trotter | broken_answers = 0
|
1081 | 30e42c4e | Guido Trotter | while not done: |
1082 | 30e42c4e | Guido Trotter | result = self._CallMonitorCommand(instance_name, info_command)
|
1083 | 30e42c4e | Guido Trotter | match = self._MIGRATION_STATUS_RE.search(result.stdout)
|
1084 | 30e42c4e | Guido Trotter | if not match: |
1085 | c4e388a5 | Guido Trotter | broken_answers += 1
|
1086 | c4e388a5 | Guido Trotter | if not result.stdout: |
1087 | c4e388a5 | Guido Trotter | logging.info("KVM: empty 'info migrate' result")
|
1088 | c4e388a5 | Guido Trotter | else:
|
1089 | e4dd2299 | Guido Trotter | logging.warning("KVM: unknown 'info migrate' result: %s",
|
1090 | c4e388a5 | Guido Trotter | result.stdout) |
1091 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
1092 | 30e42c4e | Guido Trotter | else:
|
1093 | 30e42c4e | Guido Trotter | status = match.group(1)
|
1094 | 30e42c4e | Guido Trotter | if status == 'completed': |
1095 | 30e42c4e | Guido Trotter | done = True
|
1096 | 30e42c4e | Guido Trotter | elif status == 'active': |
1097 | c4e388a5 | Guido Trotter | # reset the broken answers count
|
1098 | c4e388a5 | Guido Trotter | broken_answers = 0
|
1099 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
1100 | c087266c | Guido Trotter | elif status == 'failed' or status == 'cancelled': |
1101 | c087266c | Guido Trotter | if not live: |
1102 | c087266c | Guido Trotter | self._CallMonitorCommand(instance_name, 'cont') |
1103 | c087266c | Guido Trotter | raise errors.HypervisorError("Migration %s at the kvm level" % |
1104 | c087266c | Guido Trotter | status) |
1105 | 30e42c4e | Guido Trotter | else:
|
1106 | c4e388a5 | Guido Trotter | logging.warning("KVM: unknown migration status '%s'", status)
|
1107 | c4e388a5 | Guido Trotter | broken_answers += 1
|
1108 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
1109 | c4e388a5 | Guido Trotter | if broken_answers >= self._MIGRATION_INFO_MAX_BAD_ANSWERS: |
1110 | c4e388a5 | Guido Trotter | raise errors.HypervisorError("Too many 'info migrate' broken answers") |
1111 | 30e42c4e | Guido Trotter | |
1112 | 30e42c4e | Guido Trotter | utils.KillProcess(pid) |
1113 | 7b381438 | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
1114 | 30e42c4e | Guido Trotter | |
1115 | eb58f9b1 | Guido Trotter | def GetNodeInfo(self): |
1116 | eb58f9b1 | Guido Trotter | """Return information about the node.
|
1117 | eb58f9b1 | Guido Trotter |
|
1118 | 572e52bf | Iustin Pop | This is just a wrapper over the base GetLinuxNodeInfo method.
|
1119 | 572e52bf | Iustin Pop |
|
1120 | c41eea6e | Iustin Pop | @return: a dict with the following keys (values in MiB):
|
1121 | c41eea6e | Iustin Pop | - memory_total: the total memory size on the node
|
1122 | c41eea6e | Iustin Pop | - memory_free: the available memory on the node for instances
|
1123 | c41eea6e | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
|
1124 | eb58f9b1 | Guido Trotter |
|
1125 | eb58f9b1 | Guido Trotter | """
|
1126 | 572e52bf | Iustin Pop | return self.GetLinuxNodeInfo() |
1127 | eb58f9b1 | Guido Trotter | |
1128 | 637ce7f9 | Guido Trotter | @classmethod
|
1129 | 55cc0a44 | Michael Hanselmann | def GetInstanceConsole(cls, instance, hvparams, beparams): |
1130 | eb58f9b1 | Guido Trotter | """Return a command for connecting to the console of an instance.
|
1131 | eb58f9b1 | Guido Trotter |
|
1132 | eb58f9b1 | Guido Trotter | """
|
1133 | a2faf9ee | Guido Trotter | if hvparams[constants.HV_SERIAL_CONSOLE]:
|
1134 | 55cc0a44 | Michael Hanselmann | cmd = [constants.SOCAT_PATH, |
1135 | 55cc0a44 | Michael Hanselmann | "STDIO,%s" % cls._SocatUnixConsoleParams(),
|
1136 | 55cc0a44 | Michael Hanselmann | "UNIX-CONNECT:%s" % cls._InstanceSerial(instance.name)]
|
1137 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
1138 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_SSH, |
1139 | 55cc0a44 | Michael Hanselmann | host=instance.primary_node, |
1140 | 55cc0a44 | Michael Hanselmann | user=constants.GANETI_RUNAS, |
1141 | 55cc0a44 | Michael Hanselmann | command=cmd) |
1142 | 3be34f57 | Guido Trotter | |
1143 | 3be34f57 | Guido Trotter | vnc_bind_address = hvparams[constants.HV_VNC_BIND_ADDRESS] |
1144 | 55cc0a44 | Michael Hanselmann | if vnc_bind_address and instance.network_port > constants.VNC_BASE_PORT: |
1145 | 55cc0a44 | Michael Hanselmann | display = instance.network_port - constants.VNC_BASE_PORT |
1146 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
1147 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_VNC, |
1148 | 55cc0a44 | Michael Hanselmann | host=vnc_bind_address, |
1149 | 55cc0a44 | Michael Hanselmann | port=instance.network_port, |
1150 | 55cc0a44 | Michael Hanselmann | display=display) |
1151 | 55cc0a44 | Michael Hanselmann | |
1152 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
1153 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_MESSAGE, |
1154 | 55cc0a44 | Michael Hanselmann | message=("No serial shell for instance %s" %
|
1155 | 55cc0a44 | Michael Hanselmann | instance.name)) |
1156 | eb58f9b1 | Guido Trotter | |
1157 | eb58f9b1 | Guido Trotter | def Verify(self): |
1158 | eb58f9b1 | Guido Trotter | """Verify the hypervisor.
|
1159 | eb58f9b1 | Guido Trotter |
|
1160 | eb58f9b1 | Guido Trotter | Check that the binary exists.
|
1161 | eb58f9b1 | Guido Trotter |
|
1162 | eb58f9b1 | Guido Trotter | """
|
1163 | eb58f9b1 | Guido Trotter | if not os.path.exists(constants.KVM_PATH): |
1164 | eb58f9b1 | Guido Trotter | return "The kvm binary ('%s') does not exist." % constants.KVM_PATH |
1165 | 14aa53cb | Guido Trotter | if not os.path.exists(constants.SOCAT_PATH): |
1166 | 14aa53cb | Guido Trotter | return "The socat binary ('%s') does not exist." % constants.SOCAT_PATH |
1167 | 14aa53cb | Guido Trotter | |
1168 | 6b5605e8 | Iustin Pop | @classmethod
|
1169 | 6b5605e8 | Iustin Pop | def CheckParameterSyntax(cls, hvparams): |
1170 | 6b5605e8 | Iustin Pop | """Check the given parameters for validity.
|
1171 | 6b5605e8 | Iustin Pop |
|
1172 | 6b5605e8 | Iustin Pop | @type hvparams: dict
|
1173 | 6b5605e8 | Iustin Pop | @param hvparams: dictionary with parameter names/value
|
1174 | 6b5605e8 | Iustin Pop | @raise errors.HypervisorError: when a parameter is not valid
|
1175 | 6b5605e8 | Iustin Pop |
|
1176 | 6b5605e8 | Iustin Pop | """
|
1177 | 47387b1e | Guido Trotter | super(KVMHypervisor, cls).CheckParameterSyntax(hvparams)
|
1178 | 6b5605e8 | Iustin Pop | |
1179 | df5ab9f0 | Guido Trotter | kernel_path = hvparams[constants.HV_KERNEL_PATH] |
1180 | df5ab9f0 | Guido Trotter | if kernel_path:
|
1181 | df5ab9f0 | Guido Trotter | if not hvparams[constants.HV_ROOT_PATH]: |
1182 | 205ab586 | Iustin Pop | raise errors.HypervisorError("Need a root partition for the instance," |
1183 | 205ab586 | Iustin Pop | " if a kernel is defined")
|
1184 | 6b5605e8 | Iustin Pop | |
1185 | 205ab586 | Iustin Pop | if (hvparams[constants.HV_VNC_X509_VERIFY] and |
1186 | 205ab586 | Iustin Pop | not hvparams[constants.HV_VNC_X509]):
|
1187 | 205ab586 | Iustin Pop | raise errors.HypervisorError("%s must be defined, if %s is" % |
1188 | 205ab586 | Iustin Pop | (constants.HV_VNC_X509, |
1189 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY)) |
1190 | 66d5dbef | Guido Trotter | |
1191 | 66d5dbef | Guido Trotter | boot_order = hvparams[constants.HV_BOOT_ORDER] |
1192 | 205ab586 | Iustin Pop | if (boot_order == constants.HT_BO_CDROM and |
1193 | 205ab586 | Iustin Pop | not hvparams[constants.HV_CDROM_IMAGE_PATH]):
|
1194 | 835528af | Iustin Pop | raise errors.HypervisorError("Cannot boot from cdrom without an" |
1195 | 835528af | Iustin Pop | " ISO path")
|
1196 | f5118ade | Iustin Pop | |
1197 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
1198 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
1199 | d19d94db | Guido Trotter | if not hvparams[constants.HV_SECURITY_DOMAIN]: |
1200 | d19d94db | Guido Trotter | raise errors.HypervisorError("A security domain (user to run kvm as)" |
1201 | d19d94db | Guido Trotter | " must be specified")
|
1202 | d19d94db | Guido Trotter | elif (security_model == constants.HT_SM_NONE or |
1203 | d19d94db | Guido Trotter | security_model == constants.HT_SM_POOL): |
1204 | d19d94db | Guido Trotter | if hvparams[constants.HV_SECURITY_DOMAIN]:
|
1205 | d19d94db | Guido Trotter | raise errors.HypervisorError("Cannot have a security domain when the" |
1206 | d19d94db | Guido Trotter | " security model is 'none' or 'pool'")
|
1207 | d19d94db | Guido Trotter | |
1208 | d19d94db | Guido Trotter | @classmethod
|
1209 | d19d94db | Guido Trotter | def ValidateParameters(cls, hvparams): |
1210 | d19d94db | Guido Trotter | """Check the given parameters for validity.
|
1211 | d19d94db | Guido Trotter |
|
1212 | d19d94db | Guido Trotter | @type hvparams: dict
|
1213 | d19d94db | Guido Trotter | @param hvparams: dictionary with parameter names/value
|
1214 | d19d94db | Guido Trotter | @raise errors.HypervisorError: when a parameter is not valid
|
1215 | d19d94db | Guido Trotter |
|
1216 | d19d94db | Guido Trotter | """
|
1217 | d19d94db | Guido Trotter | super(KVMHypervisor, cls).ValidateParameters(hvparams)
|
1218 | d19d94db | Guido Trotter | |
1219 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
1220 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
1221 | d19d94db | Guido Trotter | username = hvparams[constants.HV_SECURITY_DOMAIN] |
1222 | d19d94db | Guido Trotter | try:
|
1223 | 1feb39ec | Guido Trotter | pwd.getpwnam(username) |
1224 | d19d94db | Guido Trotter | except KeyError: |
1225 | d19d94db | Guido Trotter | raise errors.HypervisorError("Unknown security domain user %s" |
1226 | d19d94db | Guido Trotter | % username) |
1227 | d19d94db | Guido Trotter | |
1228 | f5118ade | Iustin Pop | @classmethod
|
1229 | f5118ade | Iustin Pop | def PowercycleNode(cls): |
1230 | f5118ade | Iustin Pop | """KVM powercycle, just a wrapper over Linux powercycle.
|
1231 | f5118ade | Iustin Pop |
|
1232 | f5118ade | Iustin Pop | """
|
1233 | f5118ade | Iustin Pop | cls.LinuxPowercycle() |