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#!/usr/bin/python |
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# |
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|
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# Copyright (C) 2006, 2007 Google Inc. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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|
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|
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import sys |
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import os |
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import itertools |
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import simplejson |
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from optparse import make_option |
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from cStringIO import StringIO |
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|
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from ganeti.cli import * |
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from ganeti import cli |
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from ganeti import opcodes |
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from ganeti import constants |
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from ganeti import utils |
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from ganeti import errors |
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|
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|
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_SHUTDOWN_CLUSTER = "cluster" |
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_SHUTDOWN_NODES_BOTH = "nodes" |
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_SHUTDOWN_NODES_PRI = "nodes-pri" |
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_SHUTDOWN_NODES_SEC = "nodes-sec" |
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_SHUTDOWN_INSTANCES = "instances" |
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|
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|
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_VALUE_TRUE = "true" |
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|
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_LIST_DEF_FIELDS = [ |
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"name", "hypervisor", "os", "pnode", "status", "oper_ram", |
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] |
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|
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|
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def _ExpandMultiNames(mode, names): |
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"""Expand the given names using the passed mode. |
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|
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Args: |
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- mode, which can be one of _SHUTDOWN_CLUSTER, _SHUTDOWN_NODES_BOTH, |
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_SHUTDOWN_NODES_PRI, _SHUTDOWN_NODES_SEC or _SHUTDOWN_INSTANCES |
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- names, which is a list of names; for cluster, it must be empty, |
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and for node and instance it must be a list of valid item |
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names (short names are valid as usual, e.g. node1 instead of |
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node1.example.com) |
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|
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For _SHUTDOWN_CLUSTER, all instances will be returned. For |
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_SHUTDOWN_NODES_PRI/SEC, all instances having those nodes as |
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primary/secondary will be shutdown. For _SHUTDOWN_NODES_BOTH, all |
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instances having those nodes as either primary or secondary will be |
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returned. For _SHUTDOWN_INSTANCES, the given instances will be |
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returned. |
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|
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""" |
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if mode == _SHUTDOWN_CLUSTER: |
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if names: |
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raise errors.OpPrereqError("Cluster filter mode takes no arguments") |
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client = GetClient() |
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idata = client.QueryInstances([], ["name"]) |
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inames = [row[0] for row in idata] |
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|
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elif mode in (_SHUTDOWN_NODES_BOTH, |
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_SHUTDOWN_NODES_PRI, |
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_SHUTDOWN_NODES_SEC): |
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if not names: |
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raise errors.OpPrereqError("No node names passed") |
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client = GetClient() |
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ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"]) |
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ipri = [row[1] for row in ndata] |
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pri_names = list(itertools.chain(*ipri)) |
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isec = [row[2] for row in ndata] |
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sec_names = list(itertools.chain(*isec)) |
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if mode == _SHUTDOWN_NODES_BOTH: |
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inames = pri_names + sec_names |
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elif mode == _SHUTDOWN_NODES_PRI: |
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inames = pri_names |
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elif mode == _SHUTDOWN_NODES_SEC: |
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inames = sec_names |
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else: |
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raise errors.ProgrammerError("Unhandled shutdown type") |
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|
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elif mode == _SHUTDOWN_INSTANCES: |
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if not names: |
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raise errors.OpPrereqError("No instance names passed") |
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client = GetClient() |
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idata = client.QueryInstances(names, ["name"]) |
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inames = [row[0] for row in idata] |
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|
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else: |
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raise errors.OpPrereqError("Unknown mode '%s'" % mode) |
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|
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return inames |
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|
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|
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def _ConfirmOperation(inames, text): |
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"""Ask the user to confirm an operation on a list of instances. |
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|
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This function is used to request confirmation for doing an operation |
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on a given list of instances. |
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|
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The inames argument is what the selection algorithm computed, and |
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the text argument is the operation we should tell the user to |
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confirm (e.g. 'shutdown' or 'startup'). |
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|
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Returns: boolean depending on user's confirmation. |
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|
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""" |
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count = len(inames) |
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msg = ("The %s will operate on %d instances.\n" |
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"Do you want to continue?" % (text, count)) |
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affected = ("\nAffected instances:\n" + |
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"\n".join([" %s" % name for name in inames])) |
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|
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choices = [('y', True, 'Yes, execute the %s' % text), |
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('n', False, 'No, abort the %s' % text)] |
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|
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if count > 20: |
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choices.insert(1, ('v', 'v', 'View the list of affected instances')) |
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ask = msg |
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else: |
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ask = msg + affected |
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|
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choice = AskUser(ask, choices) |
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if choice == 'v': |
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choices.pop(1) |
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choice = AskUser(msg + affected, choices) |
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return choice |
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|
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|
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def _TransformPath(user_input): |
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"""Transform a user path into a canonical value. |
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|
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This function transforms the a path passed as textual information |
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into the constants that the LU code expects. |
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|
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""" |
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if user_input: |
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if user_input.lower() == "default": |
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result_path = constants.VALUE_DEFAULT |
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elif user_input.lower() == "none": |
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result_path = constants.VALUE_NONE |
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else: |
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if not os.path.isabs(user_input): |
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raise errors.OpPrereqError("Path '%s' is not an absolute filename" % |
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user_input) |
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result_path = user_input |
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else: |
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result_path = constants.VALUE_DEFAULT |
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|
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return result_path |
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|
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|
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def ListInstances(opts, args): |
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"""List instances and their properties. |
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|
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""" |
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if opts.output is None: |
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selected_fields = _LIST_DEF_FIELDS |
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elif opts.output.startswith("+"): |
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selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",") |
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else: |
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selected_fields = opts.output.split(",") |
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|
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output = GetClient().QueryInstances([], selected_fields) |
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|
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if not opts.no_headers: |
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headers = { |
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"name": "Instance", "os": "OS", "pnode": "Primary_node", |
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"snodes": "Secondary_Nodes", "admin_state": "Autostart", |
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"oper_state": "Running", |
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"oper_ram": "Memory", "disk_template": "Disk_template", |
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"ip": "IP_address", "mac": "MAC_address", |
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"bridge": "Bridge", |
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"sda_size": "Disk/0", "sdb_size": "Disk/1", |
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"status": "Status", "tags": "Tags", |
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"network_port": "Network_port", |
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"hv/kernel_path": "Kernel_path", |
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"hv/initrd_path": "Initrd_path", |
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"hv/boot_order": "HVM_boot_order", |
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"hv/acpi": "HVM_ACPI", |
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"hv/pae": "HVM_PAE", |
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"hv/cdrom_image_path": "HVM_CDROM_image_path", |
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"hv/nic_type": "HVM_NIC_type", |
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"hv/disk_type": "HVM_Disk_type", |
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"hv/vnc_bind_address": "VNC_bind_address", |
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"serial_no": "SerialNo", "hypervisor": "Hypervisor", |
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"hvparams": "Hypervisor_parameters", |
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"be/memory": "Configured_memory", |
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"be/vcpus": "VCPUs", |
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"be/auto_balance": "Auto_balance", |
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} |
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else: |
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headers = None |
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|
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if opts.human_readable: |
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unitfields = ["be/memory", "oper_ram", "sda_size", "sdb_size"] |
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else: |
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unitfields = None |
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|
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numfields = ["be/memory", "oper_ram", "sda_size", "sdb_size", "be/vcpus", |
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"serial_no"] |
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|
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list_type_fields = ("tags",) |
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# change raw values to nicer strings |
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for row in output: |
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for idx, field in enumerate(selected_fields): |
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val = row[idx] |
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if field == "snodes": |
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val = ",".join(val) or "-" |
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elif field == "admin_state": |
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if val: |
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val = "yes" |
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else: |
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val = "no" |
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elif field == "oper_state": |
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if val is None: |
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val = "(node down)" |
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elif val: # True |
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val = "running" |
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else: |
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val = "stopped" |
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elif field == "oper_ram": |
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if val is None: |
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val = "(node down)" |
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elif field == "sda_size" or field == "sdb_size": |
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if val is None: |
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val = "N/A" |
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elif field in list_type_fields: |
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val = ",".join(val) |
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elif val is None: |
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val = "-" |
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row[idx] = str(val) |
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|
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data = GenerateTable(separator=opts.separator, headers=headers, |
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fields=selected_fields, unitfields=unitfields, |
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numfields=numfields, data=output) |
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|
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for line in data: |
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ToStdout(line) |
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|
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return 0 |
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|
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|
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def AddInstance(opts, args): |
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"""Add an instance to the cluster. |
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|
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Args: |
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opts - class with options as members |
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args - list with a single element, the instance name |
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Opts used: |
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mem - amount of memory to allocate to instance (MiB) |
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size - amount of disk space to allocate to instance (MiB) |
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os - which OS to run on instance |
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node - node to run new instance on |
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|
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""" |
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instance = args[0] |
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|
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(pnode, snode) = SplitNodeOption(opts.node) |
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|
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hypervisor = None |
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hvparams = {} |
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if opts.hypervisor: |
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hypervisor, hvparams = opts.hypervisor |
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|
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ValidateBeParams(opts.beparams) |
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|
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## kernel_path = _TransformPath(opts.kernel_path) |
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## initrd_path = _TransformPath(opts.initrd_path) |
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|
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## hvm_acpi = opts.hvm_acpi == _VALUE_TRUE |
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## hvm_pae = opts.hvm_pae == _VALUE_TRUE |
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|
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## if ((opts.hvm_cdrom_image_path is not None) and |
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## (opts.hvm_cdrom_image_path.lower() == constants.VALUE_NONE)): |
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## hvm_cdrom_image_path = None |
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## else: |
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## hvm_cdrom_image_path = opts.hvm_cdrom_image_path |
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|
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op = opcodes.OpCreateInstance(instance_name=instance, |
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disk_size=opts.size, swap_size=opts.swap, |
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disk_template=opts.disk_template, |
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mode=constants.INSTANCE_CREATE, |
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os_type=opts.os, pnode=pnode, |
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snode=snode, |
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ip=opts.ip, bridge=opts.bridge, |
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start=opts.start, ip_check=opts.ip_check, |
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wait_for_sync=opts.wait_for_sync, |
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mac=opts.mac, |
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hypervisor=hypervisor, |
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hvparams=hvparams, |
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beparams=opts.beparams, |
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iallocator=opts.iallocator, |
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file_storage_dir=opts.file_storage_dir, |
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file_driver=opts.file_driver, |
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) |
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|
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SubmitOrSend(op, opts) |
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return 0 |
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|
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|
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def BatchCreate(opts, args): |
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"""Create instances on a batched base. |
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|
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This function reads a json with instances defined in the form: |
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|
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{"instance-name": {"disk_size": 25, |
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"swap_size": 1024, |
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"template": "drbd", |
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"backend": { "memory": 512, |
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"vcpus": 1 }, |
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"os": "etch-image", |
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"primary_node": "firstnode", |
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"secondary_node": "secondnode", |
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"iallocator": "dumb"}} |
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|
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primary_node and secondary_node has precedence over iallocator. |
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|
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Args: |
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opts: The parsed command line options |
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args: Argument passed to the command in our case the json file |
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|
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""" |
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_DEFAULT_SPECS = {"disk_size": 20 * 1024, |
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"swap_size": 4 * 1024, |
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"backend": {}, |
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"iallocator": None, |
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"primary_node": None, |
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"secondary_node": None, |
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"ip": 'none', |
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"mac": 'auto', |
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"bridge": None, |
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"start": True, |
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"ip_check": True, |
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"hypervisor": None, |
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"file_storage_dir": None, |
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"file_driver": 'loop'} |
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|
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def _PopulateWithDefaults(spec): |
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"""Returns a new hash combined with default values.""" |
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dict = _DEFAULT_SPECS.copy() |
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dict.update(spec) |
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return dict |
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|
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def _Validate(spec): |
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"""Validate the instance specs.""" |
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# Validate fields required under any circumstances |
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for required_field in ('os', 'template'): |
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if required_field not in spec: |
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raise errors.OpPrereqError('Required field "%s" is missing.' % |
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required_field) |
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# Validate special fields |
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if spec['primary_node'] is not None: |
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if (spec['template'] in constants.DTS_NET_MIRROR and |
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spec['secondary_node'] is None): |
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raise errors.OpPrereqError('Template requires secondary node, but' |
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' there was no secondary provided.') |
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elif spec['iallocator'] is None: |
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raise errors.OpPrereqError('You have to provide at least a primary_node' |
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' or an iallocator.') |
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|
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if (spec['hypervisor'] and |
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not isinstance(spec['hypervisor'], dict)): |
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raise errors.OpPrereqError('Hypervisor parameters must be a dict.') |
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|
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json_filename = args[0] |
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fd = open(json_filename, 'r') |
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try: |
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instance_data = simplejson.load(fd) |
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finally: |
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fd.close() |
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|
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# Iterate over the instances and do: |
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# * Populate the specs with default value |
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# * Validate the instance specs |
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for (name, specs) in instance_data.iteritems(): |
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specs = _PopulateWithDefaults(specs) |
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_Validate(specs) |
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|
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hypervisor = None |
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hvparams = {} |
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if specs['hypervisor']: |
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hypervisor, hvparams = specs['hypervisor'].iteritems() |
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|
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op = opcodes.OpCreateInstance(instance_name=name, |
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disk_size=specs['disk_size'], |
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swap_size=specs['swap_size'], |
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disk_template=specs['template'], |
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mode=constants.INSTANCE_CREATE, |
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os_type=specs['os'], |
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pnode=specs['primary_node'], |
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snode=specs['secondary_node'], |
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ip=specs['ip'], bridge=specs['bridge'], |
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start=specs['start'], |
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ip_check=specs['ip_check'], |
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wait_for_sync=True, |
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mac=specs['mac'], |
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iallocator=specs['iallocator'], |
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hypervisor=hypervisor, |
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hvparams=hvparams, |
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beparams=specs['backend'], |
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file_storage_dir=specs['file_storage_dir'], |
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file_driver=specs['file_driver']) |
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|
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ToStdout("%s: %s", name, cli.SendJob([op])) |
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|
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return 0 |
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|
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|
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def ReinstallInstance(opts, args): |
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"""Reinstall an instance. |
427 |
|
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Args: |
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opts - class with options as members |
430 |
args - list containing a single element, the instance name |
431 |
|
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""" |
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instance_name = args[0] |
434 |
|
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if opts.select_os is True: |
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op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[]) |
437 |
result = SubmitOpCode(op) |
438 |
|
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if not result: |
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ToStdout("Can't get the OS list") |
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return 1 |
442 |
|
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ToStdout("Available OS templates:") |
444 |
number = 0 |
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choices = [] |
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for entry in result: |
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ToStdout("%3s: %s", number, entry[0]) |
448 |
choices.append(("%s" % number, entry[0], entry[0])) |
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number = number + 1 |
450 |
|
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choices.append(('x', 'exit', 'Exit gnt-instance reinstall')) |
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selected = AskUser("Enter OS template name or number (or x to abort):", |
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choices) |
454 |
|
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if selected == 'exit': |
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ToStdout("User aborted reinstall, exiting") |
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return 1 |
458 |
|
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os = selected |
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else: |
461 |
os = opts.os |
462 |
|
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if not opts.force: |
464 |
usertext = ("This will reinstall the instance %s and remove" |
465 |
" all data. Continue?") % instance_name |
466 |
if not AskUser(usertext): |
467 |
return 1 |
468 |
|
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op = opcodes.OpReinstallInstance(instance_name=instance_name, |
470 |
os_type=os) |
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SubmitOrSend(op, opts) |
472 |
|
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return 0 |
474 |
|
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|
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def RemoveInstance(opts, args): |
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"""Remove an instance. |
478 |
|
479 |
Args: |
480 |
opts - class with options as members |
481 |
args - list containing a single element, the instance name |
482 |
|
483 |
""" |
484 |
instance_name = args[0] |
485 |
force = opts.force |
486 |
|
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if not force: |
488 |
usertext = ("This will remove the volumes of the instance %s" |
489 |
" (including mirrors), thus removing all the data" |
490 |
" of the instance. Continue?") % instance_name |
491 |
if not AskUser(usertext): |
492 |
return 1 |
493 |
|
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op = opcodes.OpRemoveInstance(instance_name=instance_name, |
495 |
ignore_failures=opts.ignore_failures) |
496 |
SubmitOrSend(op, opts) |
497 |
return 0 |
498 |
|
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|
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def RenameInstance(opts, args): |
501 |
"""Rename an instance. |
502 |
|
503 |
Args: |
504 |
opts - class with options as members |
505 |
args - list containing two elements, the instance name and the new name |
506 |
|
507 |
""" |
508 |
op = opcodes.OpRenameInstance(instance_name=args[0], |
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new_name=args[1], |
510 |
ignore_ip=opts.ignore_ip) |
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SubmitOrSend(op, opts) |
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return 0 |
513 |
|
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|
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def ActivateDisks(opts, args): |
516 |
"""Activate an instance's disks. |
517 |
|
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This serves two purposes: |
519 |
- it allows one (as long as the instance is not running) to mount |
520 |
the disks and modify them from the node |
521 |
- it repairs inactive secondary drbds |
522 |
|
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""" |
524 |
instance_name = args[0] |
525 |
op = opcodes.OpActivateInstanceDisks(instance_name=instance_name) |
526 |
disks_info = SubmitOrSend(op, opts) |
527 |
for host, iname, nname in disks_info: |
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ToStdout("%s:%s:%s", host, iname, nname) |
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return 0 |
530 |
|
531 |
|
532 |
def DeactivateDisks(opts, args): |
533 |
"""Command-line interface for _ShutdownInstanceBlockDevices. |
534 |
|
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This function takes the instance name, looks for its primary node |
536 |
and the tries to shutdown its block devices on that node. |
537 |
|
538 |
""" |
539 |
instance_name = args[0] |
540 |
op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name) |
541 |
SubmitOrSend(op, opts) |
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return 0 |
543 |
|
544 |
|
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def GrowDisk(opts, args): |
546 |
"""Command-line interface for _ShutdownInstanceBlockDevices. |
547 |
|
548 |
This function takes the instance name, looks for its primary node |
549 |
and the tries to shutdown its block devices on that node. |
550 |
|
551 |
""" |
552 |
instance = args[0] |
553 |
disk = args[1] |
554 |
amount = utils.ParseUnit(args[2]) |
555 |
op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount, |
556 |
wait_for_sync=opts.wait_for_sync) |
557 |
SubmitOrSend(op, opts) |
558 |
return 0 |
559 |
|
560 |
|
561 |
def StartupInstance(opts, args): |
562 |
"""Startup an instance. |
563 |
|
564 |
Args: |
565 |
opts - class with options as members |
566 |
args - list containing a single element, the instance name |
567 |
|
568 |
""" |
569 |
if opts.multi_mode is None: |
570 |
opts.multi_mode = _SHUTDOWN_INSTANCES |
571 |
inames = _ExpandMultiNames(opts.multi_mode, args) |
572 |
if not inames: |
573 |
raise errors.OpPrereqError("Selection filter does not match any instances") |
574 |
multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1 |
575 |
if not (opts.force_multi or not multi_on |
576 |
or _ConfirmOperation(inames, "startup")): |
577 |
return 1 |
578 |
for name in inames: |
579 |
op = opcodes.OpStartupInstance(instance_name=name, |
580 |
force=opts.force, |
581 |
extra_args=opts.extra_args) |
582 |
if multi_on: |
583 |
ToStdout("Starting up %s", name) |
584 |
try: |
585 |
SubmitOrSend(op, opts) |
586 |
except JobSubmittedException, err: |
587 |
_, txt = FormatError(err) |
588 |
ToStdout("%s", txt) |
589 |
return 0 |
590 |
|
591 |
|
592 |
def RebootInstance(opts, args): |
593 |
"""Reboot an instance |
594 |
|
595 |
Args: |
596 |
opts - class with options as members |
597 |
args - list containing a single element, the instance name |
598 |
|
599 |
""" |
600 |
if opts.multi_mode is None: |
601 |
opts.multi_mode = _SHUTDOWN_INSTANCES |
602 |
inames = _ExpandMultiNames(opts.multi_mode, args) |
603 |
if not inames: |
604 |
raise errors.OpPrereqError("Selection filter does not match any instances") |
605 |
multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1 |
606 |
if not (opts.force_multi or not multi_on |
607 |
or _ConfirmOperation(inames, "reboot")): |
608 |
return 1 |
609 |
for name in inames: |
610 |
op = opcodes.OpRebootInstance(instance_name=name, |
611 |
reboot_type=opts.reboot_type, |
612 |
ignore_secondaries=opts.ignore_secondaries) |
613 |
|
614 |
SubmitOrSend(op, opts) |
615 |
return 0 |
616 |
|
617 |
|
618 |
def ShutdownInstance(opts, args): |
619 |
"""Shutdown an instance. |
620 |
|
621 |
Args: |
622 |
opts - class with options as members |
623 |
args - list containing a single element, the instance name |
624 |
|
625 |
""" |
626 |
if opts.multi_mode is None: |
627 |
opts.multi_mode = _SHUTDOWN_INSTANCES |
628 |
inames = _ExpandMultiNames(opts.multi_mode, args) |
629 |
if not inames: |
630 |
raise errors.OpPrereqError("Selection filter does not match any instances") |
631 |
multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1 |
632 |
if not (opts.force_multi or not multi_on |
633 |
or _ConfirmOperation(inames, "shutdown")): |
634 |
return 1 |
635 |
for name in inames: |
636 |
op = opcodes.OpShutdownInstance(instance_name=name) |
637 |
if multi_on: |
638 |
ToStdout("Shutting down %s", name) |
639 |
try: |
640 |
SubmitOrSend(op, opts) |
641 |
except JobSubmittedException, err: |
642 |
_, txt = FormatError(err) |
643 |
ToStdout("%s", txt) |
644 |
return 0 |
645 |
|
646 |
|
647 |
def ReplaceDisks(opts, args): |
648 |
"""Replace the disks of an instance |
649 |
|
650 |
Args: |
651 |
opts - class with options as members |
652 |
args - list with a single element, the instance name |
653 |
|
654 |
""" |
655 |
instance_name = args[0] |
656 |
new_2ndary = opts.new_secondary |
657 |
iallocator = opts.iallocator |
658 |
if opts.disks is None: |
659 |
disks = ["sda", "sdb"] |
660 |
else: |
661 |
disks = opts.disks.split(",") |
662 |
if opts.on_primary == opts.on_secondary: # no -p or -s passed, or both passed |
663 |
mode = constants.REPLACE_DISK_ALL |
664 |
elif opts.on_primary: # only on primary: |
665 |
mode = constants.REPLACE_DISK_PRI |
666 |
if new_2ndary is not None or iallocator is not None: |
667 |
raise errors.OpPrereqError("Can't change secondary node on primary disk" |
668 |
" replacement") |
669 |
elif opts.on_secondary is not None or iallocator is not None: |
670 |
# only on secondary |
671 |
mode = constants.REPLACE_DISK_SEC |
672 |
|
673 |
op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks, |
674 |
remote_node=new_2ndary, mode=mode, |
675 |
iallocator=iallocator) |
676 |
SubmitOrSend(op, opts) |
677 |
return 0 |
678 |
|
679 |
|
680 |
def FailoverInstance(opts, args): |
681 |
"""Failover an instance. |
682 |
|
683 |
The failover is done by shutting it down on its present node and |
684 |
starting it on the secondary. |
685 |
|
686 |
Args: |
687 |
opts - class with options as members |
688 |
args - list with a single element, the instance name |
689 |
Opts used: |
690 |
force - whether to failover without asking questions. |
691 |
|
692 |
""" |
693 |
instance_name = args[0] |
694 |
force = opts.force |
695 |
|
696 |
if not force: |
697 |
usertext = ("Failover will happen to image %s." |
698 |
" This requires a shutdown of the instance. Continue?" % |
699 |
(instance_name,)) |
700 |
if not AskUser(usertext): |
701 |
return 1 |
702 |
|
703 |
op = opcodes.OpFailoverInstance(instance_name=instance_name, |
704 |
ignore_consistency=opts.ignore_consistency) |
705 |
SubmitOrSend(op, opts) |
706 |
return 0 |
707 |
|
708 |
|
709 |
def ConnectToInstanceConsole(opts, args): |
710 |
"""Connect to the console of an instance. |
711 |
|
712 |
Args: |
713 |
opts - class with options as members |
714 |
args - list with a single element, the instance name |
715 |
|
716 |
""" |
717 |
instance_name = args[0] |
718 |
|
719 |
op = opcodes.OpConnectConsole(instance_name=instance_name) |
720 |
cmd = SubmitOpCode(op) |
721 |
|
722 |
if opts.show_command: |
723 |
ToStdout("%s", utils.ShellQuoteArgs(cmd)) |
724 |
else: |
725 |
try: |
726 |
os.execvp(cmd[0], cmd) |
727 |
finally: |
728 |
ToStderr("Can't run console command %s with arguments:\n'%s'", |
729 |
cmd, " ".join(argv)) |
730 |
os._exit(1) |
731 |
|
732 |
|
733 |
def _FormatBlockDevInfo(buf, dev, indent_level, static): |
734 |
"""Show block device information. |
735 |
|
736 |
This is only used by ShowInstanceConfig(), but it's too big to be |
737 |
left for an inline definition. |
738 |
|
739 |
""" |
740 |
def helper(buf, dtype, status): |
741 |
"""Format one line for physical device status.""" |
742 |
if not status: |
743 |
buf.write("not active\n") |
744 |
else: |
745 |
(path, major, minor, syncp, estt, degr, ldisk) = status |
746 |
if major is None: |
747 |
major_string = "N/A" |
748 |
else: |
749 |
major_string = str(major) |
750 |
|
751 |
if minor is None: |
752 |
minor_string = "N/A" |
753 |
else: |
754 |
minor_string = str(minor) |
755 |
|
756 |
buf.write("%s (%s:%s)" % (path, major_string, minor_string)) |
757 |
if dtype in (constants.LD_DRBD8, ): |
758 |
if syncp is not None: |
759 |
sync_text = "*RECOVERING* %5.2f%%," % syncp |
760 |
if estt: |
761 |
sync_text += " ETA %ds" % estt |
762 |
else: |
763 |
sync_text += " ETA unknown" |
764 |
else: |
765 |
sync_text = "in sync" |
766 |
if degr: |
767 |
degr_text = "*DEGRADED*" |
768 |
else: |
769 |
degr_text = "ok" |
770 |
if ldisk: |
771 |
ldisk_text = " *MISSING DISK*" |
772 |
else: |
773 |
ldisk_text = "" |
774 |
buf.write(" %s, status %s%s" % (sync_text, degr_text, ldisk_text)) |
775 |
elif dtype == constants.LD_LV: |
776 |
if ldisk: |
777 |
ldisk_text = " *FAILED* (failed drive?)" |
778 |
else: |
779 |
ldisk_text = "" |
780 |
buf.write(ldisk_text) |
781 |
buf.write("\n") |
782 |
|
783 |
if dev["iv_name"] is not None: |
784 |
data = " - %s, " % dev["iv_name"] |
785 |
else: |
786 |
data = " - " |
787 |
data += "type: %s" % dev["dev_type"] |
788 |
if dev["logical_id"] is not None: |
789 |
data += ", logical_id: %s" % (dev["logical_id"],) |
790 |
elif dev["physical_id"] is not None: |
791 |
data += ", physical_id: %s" % (dev["physical_id"],) |
792 |
buf.write("%*s%s\n" % (2*indent_level, "", data)) |
793 |
if not static: |
794 |
buf.write("%*s primary: " % (2*indent_level, "")) |
795 |
helper(buf, dev["dev_type"], dev["pstatus"]) |
796 |
|
797 |
if dev["sstatus"] and not static: |
798 |
buf.write("%*s secondary: " % (2*indent_level, "")) |
799 |
helper(buf, dev["dev_type"], dev["sstatus"]) |
800 |
|
801 |
if dev["children"]: |
802 |
for child in dev["children"]: |
803 |
_FormatBlockDevInfo(buf, child, indent_level+1, static) |
804 |
|
805 |
|
806 |
def ShowInstanceConfig(opts, args): |
807 |
"""Compute instance run-time status. |
808 |
|
809 |
""" |
810 |
retcode = 0 |
811 |
op = opcodes.OpQueryInstanceData(instances=args, static=opts.static) |
812 |
result = SubmitOpCode(op) |
813 |
if not result: |
814 |
ToStdout("No instances.") |
815 |
return 1 |
816 |
|
817 |
buf = StringIO() |
818 |
retcode = 0 |
819 |
for instance_name in result: |
820 |
instance = result[instance_name] |
821 |
buf.write("Instance name: %s\n" % instance["name"]) |
822 |
buf.write("State: configured to be %s" % instance["config_state"]) |
823 |
if not opts.static: |
824 |
buf.write(", actual state is %s" % instance["run_state"]) |
825 |
buf.write("\n") |
826 |
##buf.write("Considered for memory checks in cluster verify: %s\n" % |
827 |
## instance["auto_balance"]) |
828 |
buf.write(" Nodes:\n") |
829 |
buf.write(" - primary: %s\n" % instance["pnode"]) |
830 |
buf.write(" - secondaries: %s\n" % ", ".join(instance["snodes"])) |
831 |
buf.write(" Operating system: %s\n" % instance["os"]) |
832 |
if instance.has_key("network_port"): |
833 |
buf.write(" Allocated network port: %s\n" % instance["network_port"]) |
834 |
buf.write(" Hypervisor: %s\n" % instance["hypervisor"]) |
835 |
if instance["hypervisor"] == constants.HT_XEN_PVM: |
836 |
hvattrs = ((constants.HV_KERNEL_PATH, "kernel path"), |
837 |
(constants.HV_INITRD_PATH, "initrd path")) |
838 |
elif instance["hypervisor"] == constants.HT_XEN_HVM: |
839 |
hvattrs = ((constants.HV_BOOT_ORDER, "boot order"), |
840 |
(constants.HV_ACPI, "ACPI"), |
841 |
(constants.HV_PAE, "PAE"), |
842 |
(constants.HV_CDROM_IMAGE_PATH, "virtual CDROM"), |
843 |
(constants.HV_NIC_TYPE, "NIC type"), |
844 |
(constants.HV_DISK_TYPE, "Disk type"), |
845 |
(constants.HV_VNC_BIND_ADDRESS, "VNC bind address"), |
846 |
) |
847 |
# custom console information for HVM |
848 |
vnc_bind_address = instance["hv_actual"][constants.HV_VNC_BIND_ADDRESS] |
849 |
if vnc_bind_address == constants.BIND_ADDRESS_GLOBAL: |
850 |
vnc_console_port = "%s:%s" % (instance["pnode"], |
851 |
instance["network_port"]) |
852 |
elif vnc_bind_address == constants.LOCALHOST_IP_ADDRESS: |
853 |
vnc_console_port = "%s:%s on node %s" % (vnc_bind_address, |
854 |
instance["network_port"], |
855 |
instance["pnode"]) |
856 |
else: |
857 |
vnc_console_port = "%s:%s" % (vnc_bind_address, |
858 |
instance["network_port"]) |
859 |
buf.write(" - console connection: vnc to %s\n" % vnc_console_port) |
860 |
|
861 |
else: |
862 |
# auto-handle other hypervisor types |
863 |
hvattrs = [(key, key) for key in instance["hv_actual"]] |
864 |
|
865 |
for key, desc in hvattrs: |
866 |
if key in instance["hv_instance"]: |
867 |
val = instance["hv_instance"][key] |
868 |
else: |
869 |
val = "default (%s)" % instance["hv_actual"][key] |
870 |
buf.write(" - %s: %s\n" % (desc, val)) |
871 |
buf.write(" Hardware:\n") |
872 |
buf.write(" - VCPUs: %d\n" % |
873 |
instance["be_actual"][constants.BE_VCPUS]) |
874 |
buf.write(" - memory: %dMiB\n" % |
875 |
instance["be_actual"][constants.BE_MEMORY]) |
876 |
buf.write(" - NICs: %s\n" % |
877 |
", ".join(["{MAC: %s, IP: %s, bridge: %s}" % |
878 |
(mac, ip, bridge) |
879 |
for mac, ip, bridge in instance["nics"]])) |
880 |
buf.write(" Block devices:\n") |
881 |
|
882 |
for device in instance["disks"]: |
883 |
_FormatBlockDevInfo(buf, device, 1, opts.static) |
884 |
|
885 |
ToStdout(buf.getvalue().rstrip('\n')) |
886 |
return retcode |
887 |
|
888 |
|
889 |
def SetInstanceParams(opts, args): |
890 |
"""Modifies an instance. |
891 |
|
892 |
All parameters take effect only at the next restart of the instance. |
893 |
|
894 |
Args: |
895 |
opts - class with options as members |
896 |
args - list with a single element, the instance name |
897 |
Opts used: |
898 |
mac - the new MAC address of the instance |
899 |
|
900 |
""" |
901 |
if not (opts.ip or opts.bridge or opts.mac or |
902 |
opts.hypervisor or opts.beparams): |
903 |
ToStderr("Please give at least one of the parameters.") |
904 |
return 1 |
905 |
|
906 |
if constants.BE_MEMORY in opts.beparams: |
907 |
opts.beparams[constants.BE_MEMORY] = utils.ParseUnit( |
908 |
opts.beparams[constants.BE_MEMORY]) |
909 |
|
910 |
op = opcodes.OpSetInstanceParams(instance_name=args[0], |
911 |
ip=opts.ip, |
912 |
bridge=opts.bridge, mac=opts.mac, |
913 |
hvparams=opts.hypervisor, |
914 |
beparams=opts.beparams, |
915 |
force=opts.force) |
916 |
|
917 |
# even if here we process the result, we allow submit only |
918 |
result = SubmitOrSend(op, opts) |
919 |
|
920 |
if result: |
921 |
ToStdout("Modified instance %s", args[0]) |
922 |
for param, data in result: |
923 |
ToStdout(" - %-5s -> %s", param, data) |
924 |
ToStdout("Please don't forget that these parameters take effect" |
925 |
" only at the next start of the instance.") |
926 |
return 0 |
927 |
|
928 |
|
929 |
# options used in more than one cmd |
930 |
node_opt = make_option("-n", "--node", dest="node", help="Target node", |
931 |
metavar="<node>") |
932 |
|
933 |
os_opt = cli_option("-o", "--os-type", dest="os", help="What OS to run", |
934 |
metavar="<os>") |
935 |
|
936 |
# multi-instance selection options |
937 |
m_force_multi = make_option("--force-multiple", dest="force_multi", |
938 |
help="Do not ask for confirmation when more than" |
939 |
" one instance is affected", |
940 |
action="store_true", default=False) |
941 |
|
942 |
m_pri_node_opt = make_option("--primary", dest="multi_mode", |
943 |
help="Filter by nodes (primary only)", |
944 |
const=_SHUTDOWN_NODES_PRI, action="store_const") |
945 |
|
946 |
m_sec_node_opt = make_option("--secondary", dest="multi_mode", |
947 |
help="Filter by nodes (secondary only)", |
948 |
const=_SHUTDOWN_NODES_SEC, action="store_const") |
949 |
|
950 |
m_node_opt = make_option("--node", dest="multi_mode", |
951 |
help="Filter by nodes (primary and secondary)", |
952 |
const=_SHUTDOWN_NODES_BOTH, action="store_const") |
953 |
|
954 |
m_clust_opt = make_option("--all", dest="multi_mode", |
955 |
help="Select all instances in the cluster", |
956 |
const=_SHUTDOWN_CLUSTER, action="store_const") |
957 |
|
958 |
m_inst_opt = make_option("--instance", dest="multi_mode", |
959 |
help="Filter by instance name [default]", |
960 |
const=_SHUTDOWN_INSTANCES, action="store_const") |
961 |
|
962 |
|
963 |
# this is defined separately due to readability only |
964 |
add_opts = [ |
965 |
DEBUG_OPT, |
966 |
make_option("-n", "--node", dest="node", |
967 |
help="Target node and optional secondary node", |
968 |
metavar="<pnode>[:<snode>]"), |
969 |
cli_option("-s", "--os-size", dest="size", help="Disk size, in MiB unless" |
970 |
" a suffix is used", |
971 |
default=20 * 1024, type="unit", metavar="<size>"), |
972 |
cli_option("--swap-size", dest="swap", help="Swap size, in MiB unless a" |
973 |
" suffix is used", |
974 |
default=4 * 1024, type="unit", metavar="<size>"), |
975 |
os_opt, |
976 |
keyval_option("-B", "--backend", dest="beparams", |
977 |
type="keyval", default={}, |
978 |
help="Backend parameters"), |
979 |
make_option("-t", "--disk-template", dest="disk_template", |
980 |
help="Custom disk setup (diskless, file, plain or drbd)", |
981 |
default=None, metavar="TEMPL"), |
982 |
make_option("-i", "--ip", dest="ip", |
983 |
help="IP address ('none' [default], 'auto', or specify address)", |
984 |
default='none', type="string", metavar="<ADDRESS>"), |
985 |
make_option("--mac", dest="mac", |
986 |
help="MAC address ('auto' [default], or specify address)", |
987 |
default='auto', type="string", metavar="<MACADDRESS>"), |
988 |
make_option("--no-wait-for-sync", dest="wait_for_sync", default=True, |
989 |
action="store_false", help="Don't wait for sync (DANGEROUS!)"), |
990 |
make_option("-b", "--bridge", dest="bridge", |
991 |
help="Bridge to connect this instance to", |
992 |
default=None, metavar="<bridge>"), |
993 |
make_option("--no-start", dest="start", default=True, |
994 |
action="store_false", help="Don't start the instance after" |
995 |
" creation"), |
996 |
make_option("--no-ip-check", dest="ip_check", default=True, |
997 |
action="store_false", help="Don't check that the instance's IP" |
998 |
" is alive (only valid with --no-start)"), |
999 |
make_option("--file-storage-dir", dest="file_storage_dir", |
1000 |
help="Relative path under default cluster-wide file storage dir" |
1001 |
" to store file-based disks", default=None, |
1002 |
metavar="<DIR>"), |
1003 |
make_option("--file-driver", dest="file_driver", help="Driver to use" |
1004 |
" for image files", default="loop", metavar="<DRIVER>"), |
1005 |
make_option("--iallocator", metavar="<NAME>", |
1006 |
help="Select nodes for the instance automatically using the" |
1007 |
" <NAME> iallocator plugin", default=None, type="string"), |
1008 |
ikv_option("-H", "--hypervisor", dest="hypervisor", |
1009 |
help="Hypervisor and hypervisor options, in the format" |
1010 |
" hypervisor:option=value,option=value,...", default=None, |
1011 |
type="identkeyval"), |
1012 |
SUBMIT_OPT, |
1013 |
] |
1014 |
|
1015 |
commands = { |
1016 |
'add': (AddInstance, ARGS_ONE, add_opts, |
1017 |
"[...] -t disk-type -n node[:secondary-node] -o os-type <name>", |
1018 |
"Creates and adds a new instance to the cluster"), |
1019 |
'batch-create': (BatchCreate, ARGS_ONE, |
1020 |
[DEBUG_OPT], |
1021 |
"<instances_file.json>", |
1022 |
"Create a bunch of instances based on specs in the file."), |
1023 |
'console': (ConnectToInstanceConsole, ARGS_ONE, |
1024 |
[DEBUG_OPT, |
1025 |
make_option("--show-cmd", dest="show_command", |
1026 |
action="store_true", default=False, |
1027 |
help=("Show command instead of executing it"))], |
1028 |
"[--show-cmd] <instance>", |
1029 |
"Opens a console on the specified instance"), |
1030 |
'failover': (FailoverInstance, ARGS_ONE, |
1031 |
[DEBUG_OPT, FORCE_OPT, |
1032 |
make_option("--ignore-consistency", dest="ignore_consistency", |
1033 |
action="store_true", default=False, |
1034 |
help="Ignore the consistency of the disks on" |
1035 |
" the secondary"), |
1036 |
SUBMIT_OPT, |
1037 |
], |
1038 |
"[-f] <instance>", |
1039 |
"Stops the instance and starts it on the backup node, using" |
1040 |
" the remote mirror (only for instances of type drbd)"), |
1041 |
'info': (ShowInstanceConfig, ARGS_ANY, |
1042 |
[DEBUG_OPT, |
1043 |
make_option("-s", "--static", dest="static", |
1044 |
action="store_true", default=False, |
1045 |
help="Only show configuration data, not runtime data"), |
1046 |
], "[-s] [<instance>...]", |
1047 |
"Show information on the specified instance(s)"), |
1048 |
'list': (ListInstances, ARGS_NONE, |
1049 |
[DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT], "", |
1050 |
"Lists the instances and their status. The available fields are" |
1051 |
" (see the man page for details): status, oper_state, oper_ram," |
1052 |
" name, os, pnode, snodes, admin_state, admin_ram, disk_template," |
1053 |
" ip, mac, bridge, sda_size, sdb_size, vcpus, serial_no," |
1054 |
" hypervisor." |
1055 |
" The default field" |
1056 |
" list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS), |
1057 |
), |
1058 |
'reinstall': (ReinstallInstance, ARGS_ONE, |
1059 |
[DEBUG_OPT, FORCE_OPT, os_opt, |
1060 |
make_option("--select-os", dest="select_os", |
1061 |
action="store_true", default=False, |
1062 |
help="Interactive OS reinstall, lists available" |
1063 |
" OS templates for selection"), |
1064 |
SUBMIT_OPT, |
1065 |
], |
1066 |
"[-f] <instance>", "Reinstall a stopped instance"), |
1067 |
'remove': (RemoveInstance, ARGS_ONE, |
1068 |
[DEBUG_OPT, FORCE_OPT, |
1069 |
make_option("--ignore-failures", dest="ignore_failures", |
1070 |
action="store_true", default=False, |
1071 |
help=("Remove the instance from the cluster even" |
1072 |
" if there are failures during the removal" |
1073 |
" process (shutdown, disk removal, etc.)")), |
1074 |
SUBMIT_OPT, |
1075 |
], |
1076 |
"[-f] <instance>", "Shuts down the instance and removes it"), |
1077 |
'rename': (RenameInstance, ARGS_FIXED(2), |
1078 |
[DEBUG_OPT, |
1079 |
make_option("--no-ip-check", dest="ignore_ip", |
1080 |
help="Do not check that the IP of the new name" |
1081 |
" is alive", |
1082 |
default=False, action="store_true"), |
1083 |
SUBMIT_OPT, |
1084 |
], |
1085 |
"<instance> <new_name>", "Rename the instance"), |
1086 |
'replace-disks': (ReplaceDisks, ARGS_ONE, |
1087 |
[DEBUG_OPT, |
1088 |
make_option("-n", "--new-secondary", dest="new_secondary", |
1089 |
help=("New secondary node (for secondary" |
1090 |
" node change)"), metavar="NODE"), |
1091 |
make_option("-p", "--on-primary", dest="on_primary", |
1092 |
default=False, action="store_true", |
1093 |
help=("Replace the disk(s) on the primary" |
1094 |
" node (only for the drbd template)")), |
1095 |
make_option("-s", "--on-secondary", dest="on_secondary", |
1096 |
default=False, action="store_true", |
1097 |
help=("Replace the disk(s) on the secondary" |
1098 |
" node (only for the drbd template)")), |
1099 |
make_option("--disks", dest="disks", default=None, |
1100 |
help=("Comma-separated list of disks" |
1101 |
" to replace (e.g. sda) (optional," |
1102 |
" defaults to all disks")), |
1103 |
make_option("--iallocator", metavar="<NAME>", |
1104 |
help="Select new secondary for the instance" |
1105 |
" automatically using the" |
1106 |
" <NAME> iallocator plugin (enables" |
1107 |
" secondary node replacement)", |
1108 |
default=None, type="string"), |
1109 |
SUBMIT_OPT, |
1110 |
], |
1111 |
"[-s|-p|-n NODE] <instance>", |
1112 |
"Replaces all disks for the instance"), |
1113 |
'modify': (SetInstanceParams, ARGS_ONE, |
1114 |
[DEBUG_OPT, FORCE_OPT, |
1115 |
make_option("-i", "--ip", dest="ip", |
1116 |
help="IP address ('none' or numeric IP)", |
1117 |
default=None, type="string", metavar="<ADDRESS>"), |
1118 |
make_option("-b", "--bridge", dest="bridge", |
1119 |
help="Bridge to connect this instance to", |
1120 |
default=None, type="string", metavar="<bridge>"), |
1121 |
make_option("--mac", dest="mac", |
1122 |
help="MAC address", default=None, |
1123 |
type="string", metavar="<MACADDRESS>"), |
1124 |
keyval_option("-H", "--hypervisor", type="keyval", |
1125 |
default={}, dest="hypervisor", |
1126 |
help="Change hypervisor parameters"), |
1127 |
keyval_option("-B", "--backend", type="keyval", |
1128 |
default={}, dest="beparams", |
1129 |
help="Change backend parameters"), |
1130 |
SUBMIT_OPT, |
1131 |
], |
1132 |
"<instance>", "Alters the parameters of an instance"), |
1133 |
'shutdown': (ShutdownInstance, ARGS_ANY, |
1134 |
[DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt, |
1135 |
m_clust_opt, m_inst_opt, m_force_multi, |
1136 |
SUBMIT_OPT, |
1137 |
], |
1138 |
"<instance>", "Stops an instance"), |
1139 |
'startup': (StartupInstance, ARGS_ANY, |
1140 |
[DEBUG_OPT, FORCE_OPT, m_force_multi, |
1141 |
make_option("-e", "--extra", dest="extra_args", |
1142 |
help="Extra arguments for the instance's kernel", |
1143 |
default=None, type="string", metavar="<PARAMS>"), |
1144 |
m_node_opt, m_pri_node_opt, m_sec_node_opt, |
1145 |
m_clust_opt, m_inst_opt, |
1146 |
SUBMIT_OPT, |
1147 |
], |
1148 |
"<instance>", "Starts an instance"), |
1149 |
|
1150 |
'reboot': (RebootInstance, ARGS_ANY, |
1151 |
[DEBUG_OPT, m_force_multi, |
1152 |
make_option("-e", "--extra", dest="extra_args", |
1153 |
help="Extra arguments for the instance's kernel", |
1154 |
default=None, type="string", metavar="<PARAMS>"), |
1155 |
make_option("-t", "--type", dest="reboot_type", |
1156 |
help="Type of reboot: soft/hard/full", |
1157 |
default=constants.INSTANCE_REBOOT_HARD, |
1158 |
type="string", metavar="<REBOOT>"), |
1159 |
make_option("--ignore-secondaries", dest="ignore_secondaries", |
1160 |
default=False, action="store_true", |
1161 |
help="Ignore errors from secondaries"), |
1162 |
m_node_opt, m_pri_node_opt, m_sec_node_opt, |
1163 |
m_clust_opt, m_inst_opt, |
1164 |
SUBMIT_OPT, |
1165 |
], |
1166 |
"<instance>", "Reboots an instance"), |
1167 |
'activate-disks': (ActivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT], |
1168 |
"<instance>", |
1169 |
"Activate an instance's disks"), |
1170 |
'deactivate-disks': (DeactivateDisks, ARGS_ONE, [DEBUG_OPT, SUBMIT_OPT], |
1171 |
"<instance>", |
1172 |
"Deactivate an instance's disks"), |
1173 |
'grow-disk': (GrowDisk, ARGS_FIXED(3), |
1174 |
[DEBUG_OPT, SUBMIT_OPT, |
1175 |
make_option("--no-wait-for-sync", |
1176 |
dest="wait_for_sync", default=True, |
1177 |
action="store_false", |
1178 |
help="Don't wait for sync (DANGEROUS!)"), |
1179 |
], |
1180 |
"<instance> <disk> <size>", "Grow an instance's disk"), |
1181 |
'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT], |
1182 |
"<instance_name>", "List the tags of the given instance"), |
1183 |
'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT], |
1184 |
"<instance_name> tag...", "Add tags to the given instance"), |
1185 |
'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT], |
1186 |
"<instance_name> tag...", "Remove tags from given instance"), |
1187 |
} |
1188 |
|
1189 |
aliases = { |
1190 |
'activate_block_devs': 'activate-disks', |
1191 |
'replace_disks': 'replace-disks', |
1192 |
'start': 'startup', |
1193 |
'stop': 'shutdown', |
1194 |
} |
1195 |
|
1196 |
if __name__ == '__main__': |
1197 |
sys.exit(GenericMain(commands, aliases=aliases, |
1198 |
override={"tag_type": constants.TAG_INSTANCE})) |