root / lib / client / gnt_node.py @ 91c17910
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 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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"""Node related commands"""
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# pylint: disable=W0401,W0613,W0614,C0103
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# W0401: Wildcard import ganeti.cli
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# W0613: Unused argument, since all functions follow the same API
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# W0614: Unused import %s from wildcard import (since we need cli)
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# C0103: Invalid name gnt-node
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import itertools |
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import errno |
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from ganeti.cli import * |
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from ganeti import cli |
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from ganeti import bootstrap |
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from ganeti import opcodes |
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from ganeti import utils |
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from ganeti import constants |
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from ganeti import errors |
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from ganeti import netutils |
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from ganeti import pathutils |
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from ganeti import ssh |
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from ganeti import compat |
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from cStringIO import StringIO |
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from ganeti import confd |
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from ganeti.confd import client as confd_client |
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#: default list of field for L{ListNodes}
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_LIST_DEF_FIELDS = [ |
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"name", "dtotal", "dfree", |
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"mtotal", "mnode", "mfree", |
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"pinst_cnt", "sinst_cnt", |
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] |
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#: Default field list for L{ListVolumes}
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_LIST_VOL_DEF_FIELDS = ["node", "phys", "vg", "name", "size", "instance"] |
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#: default list of field for L{ListStorage}
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_LIST_STOR_DEF_FIELDS = [ |
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constants.SF_NODE, |
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constants.SF_TYPE, |
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constants.SF_NAME, |
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constants.SF_SIZE, |
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constants.SF_USED, |
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constants.SF_FREE, |
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constants.SF_ALLOCATABLE, |
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] |
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|
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#: default list of power commands
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_LIST_POWER_COMMANDS = ["on", "off", "cycle", "status"] |
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#: headers (and full field list) for L{ListStorage}
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_LIST_STOR_HEADERS = { |
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constants.SF_NODE: "Node",
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constants.SF_TYPE: "Type",
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constants.SF_NAME: "Name",
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constants.SF_SIZE: "Size",
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constants.SF_USED: "Used",
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constants.SF_FREE: "Free",
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constants.SF_ALLOCATABLE: "Allocatable",
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} |
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#: User-facing storage unit types
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_USER_STORAGE_TYPE = { |
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constants.ST_FILE: "file",
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constants.ST_LVM_PV: "lvm-pv",
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constants.ST_LVM_VG: "lvm-vg",
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} |
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_STORAGE_TYPE_OPT = \ |
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cli_option("-t", "--storage-type", |
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dest="user_storage_type",
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choices=_USER_STORAGE_TYPE.keys(), |
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default=None,
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metavar="STORAGE_TYPE",
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help=("Storage type (%s)" %
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utils.CommaJoin(_USER_STORAGE_TYPE.keys()))) |
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_REPAIRABLE_STORAGE_TYPES = \ |
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[st for st, so in constants.VALID_STORAGE_OPERATIONS.iteritems() |
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if constants.SO_FIX_CONSISTENCY in so] |
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_MODIFIABLE_STORAGE_TYPES = constants.MODIFIABLE_STORAGE_FIELDS.keys() |
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_OOB_COMMAND_ASK = compat.UniqueFrozenset([ |
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constants.OOB_POWER_OFF, |
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constants.OOB_POWER_CYCLE, |
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]) |
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_ENV_OVERRIDE = compat.UniqueFrozenset(["list"])
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NONODE_SETUP_OPT = cli_option("--no-node-setup", default=True, |
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action="store_false", dest="node_setup", |
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help=("Do not make initial SSH setup on remote"
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" node (needs to be done manually)"))
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IGNORE_STATUS_OPT = cli_option("--ignore-status", default=False, |
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action="store_true", dest="ignore_status", |
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help=("Ignore the Node(s) offline status"
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" (potentially DANGEROUS)"))
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def ConvertStorageType(user_storage_type): |
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"""Converts a user storage type to its internal name.
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"""
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try:
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return _USER_STORAGE_TYPE[user_storage_type]
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except KeyError: |
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raise errors.OpPrereqError("Unknown storage type: %s" % user_storage_type, |
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errors.ECODE_INVAL) |
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def _TryReadFile(path): |
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"""Tries to read a file.
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If the file is not found, C{None} is returned.
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@type path: string
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@param path: Filename
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@rtype: None or string
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@todo: Consider adding a generic ENOENT wrapper
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"""
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try:
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return utils.ReadFile(path)
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except EnvironmentError, err: |
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if err.errno == errno.ENOENT:
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return None |
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else:
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raise
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def _ReadSshKeys(keyfiles, _tostderr_fn=ToStderr): |
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"""Reads SSH keys according to C{keyfiles}.
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@type keyfiles: dict
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@param keyfiles: Dictionary with keys of L{constants.SSHK_ALL} and two-values
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tuples (private and public key file)
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@rtype: list
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@return: List of three-values tuples (L{constants.SSHK_ALL}, private and
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public key as strings)
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"""
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result = [] |
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for (kind, (private_file, public_file)) in keyfiles.items(): |
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private_key = _TryReadFile(private_file) |
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public_key = _TryReadFile(public_file) |
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if public_key and private_key: |
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result.append((kind, private_key, public_key)) |
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elif public_key or private_key: |
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_tostderr_fn("Couldn't find a complete set of keys for kind '%s'; files"
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" '%s' and '%s'", kind, private_file, public_file)
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return result
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def _SetupSSH(options, cluster_name, node): |
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"""Configures a destination node's SSH daemon.
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@param options: Command line options
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@type cluster_name
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@param cluster_name: Cluster name
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@type node: string
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@param node: Destination node name
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"""
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if options.force_join:
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ToStderr("The \"--force-join\" option is no longer supported and will be"
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" ignored.")
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host_keys = _ReadSshKeys(constants.SSH_DAEMON_KEYFILES) |
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(_, root_keyfiles) = \ |
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ssh.GetAllUserFiles(constants.SSH_LOGIN_USER, mkdir=False, dircheck=False) |
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root_keys = _ReadSshKeys(root_keyfiles) |
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(_, cert_pem) = \ |
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utils.ExtractX509Certificate(utils.ReadFile(pathutils.NODED_CERT_FILE)) |
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data = { |
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constants.SSHS_CLUSTER_NAME: cluster_name, |
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constants.SSHS_NODE_DAEMON_CERTIFICATE: cert_pem, |
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constants.SSHS_SSH_HOST_KEY: host_keys, |
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constants.SSHS_SSH_ROOT_KEY: root_keys, |
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} |
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bootstrap.RunNodeSetupCmd(cluster_name, node, pathutils.PREPARE_NODE_JOIN, |
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options.debug, options.verbose, False,
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options.ssh_key_check, options.ssh_key_check, data) |
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@UsesRPC
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def AddNode(opts, args): |
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"""Add a node to the cluster.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain only one element, the new node name
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@rtype: int
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@return: the desired exit code
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"""
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cl = GetClient() |
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node = netutils.GetHostname(name=args[0]).name
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readd = opts.readd |
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try:
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output = cl.QueryNodes(names=[node], fields=["name", "sip", "master"], |
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use_locking=False)
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node_exists, sip, is_master = output[0]
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except (errors.OpPrereqError, errors.OpExecError):
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node_exists = ""
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sip = None
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if readd:
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if not node_exists: |
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ToStderr("Node %s not in the cluster"
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" - please retry without '--readd'", node)
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return 1 |
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if is_master:
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ToStderr("Node %s is the master, cannot readd", node)
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return 1 |
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else:
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if node_exists:
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ToStderr("Node %s already in the cluster (as %s)"
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" - please retry with '--readd'", node, node_exists)
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return 1 |
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sip = opts.secondary_ip |
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# read the cluster name from the master
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(cluster_name, ) = cl.QueryConfigValues(["cluster_name"])
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if not readd and opts.node_setup: |
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ToStderr("-- WARNING -- \n"
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"Performing this operation is going to replace the ssh daemon"
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" keypair\n"
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"on the target machine (%s) with the ones of the"
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" current one\n"
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"and grant full intra-cluster ssh root access to/from it\n", node)
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if opts.node_setup:
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_SetupSSH(opts, cluster_name, node) |
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bootstrap.SetupNodeDaemon(opts, cluster_name, node) |
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if opts.disk_state:
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disk_state = utils.FlatToDict(opts.disk_state) |
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else:
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disk_state = {} |
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hv_state = dict(opts.hv_state)
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op = opcodes.OpNodeAdd(node_name=args[0], secondary_ip=sip,
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readd=opts.readd, group=opts.nodegroup, |
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vm_capable=opts.vm_capable, ndparams=opts.ndparams, |
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master_capable=opts.master_capable, |
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disk_state=disk_state, |
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hv_state=hv_state) |
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SubmitOpCode(op, opts=opts) |
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def ListNodes(opts, args): |
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"""List nodes and their properties.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: nodes to list, or empty for all
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@rtype: int
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@return: the desired exit code
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"""
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selected_fields = ParseFields(opts.output, _LIST_DEF_FIELDS) |
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fmtoverride = dict.fromkeys(["pinst_list", "sinst_list", "tags"], |
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(",".join, False)) |
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cl = GetClient(query=False)
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return GenericList(constants.QR_NODE, selected_fields, args, opts.units,
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opts.separator, not opts.no_headers,
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format_override=fmtoverride, verbose=opts.verbose, |
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force_filter=opts.force_filter, cl=cl) |
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def ListNodeFields(opts, args): |
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"""List node fields.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: fields to list, or empty for all
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@rtype: int
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@return: the desired exit code
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"""
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cl = GetClient(query=True)
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return GenericListFields(constants.QR_NODE, args, opts.separator,
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not opts.no_headers, cl=cl)
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def EvacuateNode(opts, args): |
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"""Relocate all secondary instance from a node.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should be an empty list
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@rtype: int
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@return: the desired exit code
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"""
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if opts.dst_node is not None: |
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ToStderr("New secondary node given (disabling iallocator), hence evacuating"
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" secondary instances only.")
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opts.secondary_only = True
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opts.primary_only = False
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if opts.secondary_only and opts.primary_only: |
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raise errors.OpPrereqError("Only one of the --primary-only and" |
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" --secondary-only options can be passed",
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errors.ECODE_INVAL) |
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elif opts.primary_only:
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mode = constants.NODE_EVAC_PRI |
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elif opts.secondary_only:
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mode = constants.NODE_EVAC_SEC |
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else:
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mode = constants.NODE_EVAC_ALL |
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# Determine affected instances
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fields = [] |
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if not opts.secondary_only: |
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fields.append("pinst_list")
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if not opts.primary_only: |
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fields.append("sinst_list")
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cl = GetClient() |
366 |
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qcl = GetClient(query=True)
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result = qcl.QueryNodes(names=args, fields=fields, use_locking=False)
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qcl.Close() |
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instances = set(itertools.chain(*itertools.chain(*itertools.chain(result))))
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|
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if not instances: |
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# No instances to evacuate
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ToStderr("No instances to evacuate on node(s) %s, exiting.",
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utils.CommaJoin(args)) |
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return constants.EXIT_SUCCESS
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|
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if not (opts.force or |
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AskUser("Relocate instance(s) %s from node(s) %s?" %
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(utils.CommaJoin(utils.NiceSort(instances)), |
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utils.CommaJoin(args)))): |
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return constants.EXIT_CONFIRMATION
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|
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# Evacuate node
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op = opcodes.OpNodeEvacuate(node_name=args[0], mode=mode,
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remote_node=opts.dst_node, |
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iallocator=opts.iallocator, |
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early_release=opts.early_release) |
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result = SubmitOrSend(op, opts, cl=cl) |
391 |
|
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# Keep track of submitted jobs
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jex = JobExecutor(cl=cl, opts=opts) |
394 |
|
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for (status, job_id) in result[constants.JOB_IDS_KEY]: |
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jex.AddJobId(None, status, job_id)
|
397 |
|
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results = jex.GetResults() |
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bad_cnt = len([row for row in results if not row[0]]) |
400 |
if bad_cnt == 0: |
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ToStdout("All instances evacuated successfully.")
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rcode = constants.EXIT_SUCCESS |
403 |
else:
|
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ToStdout("There were %s errors during the evacuation.", bad_cnt)
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rcode = constants.EXIT_FAILURE |
406 |
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return rcode
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|
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|
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def FailoverNode(opts, args): |
411 |
"""Failover all primary instance on a node.
|
412 |
|
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@param opts: the command line options selected by the user
|
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@type args: list
|
415 |
@param args: should be an empty list
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@rtype: int
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@return: the desired exit code
|
418 |
|
419 |
"""
|
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cl = GetClient() |
421 |
force = opts.force |
422 |
selected_fields = ["name", "pinst_list"] |
423 |
|
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# these fields are static data anyway, so it doesn't matter, but
|
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# locking=True should be safer
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qcl = GetClient(query=True)
|
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result = cl.QueryNodes(names=args, fields=selected_fields, |
428 |
use_locking=False)
|
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qcl.Close() |
430 |
node, pinst = result[0]
|
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|
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if not pinst: |
433 |
ToStderr("No primary instances on node %s, exiting.", node)
|
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return 0 |
435 |
|
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pinst = utils.NiceSort(pinst) |
437 |
|
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retcode = 0
|
439 |
|
440 |
if not force and not AskUser("Fail over instance(s) %s?" % |
441 |
(",".join("'%s'" % name for name in pinst))): |
442 |
return 2 |
443 |
|
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jex = JobExecutor(cl=cl, opts=opts) |
445 |
for iname in pinst: |
446 |
op = opcodes.OpInstanceFailover(instance_name=iname, |
447 |
ignore_consistency=opts.ignore_consistency, |
448 |
iallocator=opts.iallocator) |
449 |
jex.QueueJob(iname, op) |
450 |
results = jex.GetResults() |
451 |
bad_cnt = len([row for row in results if not row[0]]) |
452 |
if bad_cnt == 0: |
453 |
ToStdout("All %d instance(s) failed over successfully.", len(results)) |
454 |
else:
|
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ToStdout("There were errors during the failover:\n"
|
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"%d error(s) out of %d instance(s).", bad_cnt, len(results)) |
457 |
return retcode
|
458 |
|
459 |
|
460 |
def MigrateNode(opts, args): |
461 |
"""Migrate all primary instance on a node.
|
462 |
|
463 |
"""
|
464 |
cl = GetClient() |
465 |
force = opts.force |
466 |
selected_fields = ["name", "pinst_list"] |
467 |
|
468 |
qcl = GetClient(query=True)
|
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result = cl.QueryNodes(names=args, fields=selected_fields, use_locking=False)
|
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qcl.Close() |
471 |
((node, pinst), ) = result |
472 |
|
473 |
if not pinst: |
474 |
ToStdout("No primary instances on node %s, exiting." % node)
|
475 |
return 0 |
476 |
|
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pinst = utils.NiceSort(pinst) |
478 |
|
479 |
if not (force or |
480 |
AskUser("Migrate instance(s) %s?" %
|
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utils.CommaJoin(utils.NiceSort(pinst)))): |
482 |
return constants.EXIT_CONFIRMATION
|
483 |
|
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# this should be removed once --non-live is deprecated
|
485 |
if not opts.live and opts.migration_mode is not None: |
486 |
raise errors.OpPrereqError("Only one of the --non-live and " |
487 |
"--migration-mode options can be passed",
|
488 |
errors.ECODE_INVAL) |
489 |
if not opts.live: # --non-live passed |
490 |
mode = constants.HT_MIGRATION_NONLIVE |
491 |
else:
|
492 |
mode = opts.migration_mode |
493 |
|
494 |
op = opcodes.OpNodeMigrate(node_name=args[0], mode=mode,
|
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iallocator=opts.iallocator, |
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target_node=opts.dst_node, |
497 |
allow_runtime_changes=opts.allow_runtime_chgs, |
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ignore_ipolicy=opts.ignore_ipolicy) |
499 |
|
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result = SubmitOrSend(op, opts, cl=cl) |
501 |
|
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# Keep track of submitted jobs
|
503 |
jex = JobExecutor(cl=cl, opts=opts) |
504 |
|
505 |
for (status, job_id) in result[constants.JOB_IDS_KEY]: |
506 |
jex.AddJobId(None, status, job_id)
|
507 |
|
508 |
results = jex.GetResults() |
509 |
bad_cnt = len([row for row in results if not row[0]]) |
510 |
if bad_cnt == 0: |
511 |
ToStdout("All instances migrated successfully.")
|
512 |
rcode = constants.EXIT_SUCCESS |
513 |
else:
|
514 |
ToStdout("There were %s errors during the node migration.", bad_cnt)
|
515 |
rcode = constants.EXIT_FAILURE |
516 |
|
517 |
return rcode
|
518 |
|
519 |
|
520 |
def ShowNodeConfig(opts, args): |
521 |
"""Show node information.
|
522 |
|
523 |
@param opts: the command line options selected by the user
|
524 |
@type args: list
|
525 |
@param args: should either be an empty list, in which case
|
526 |
we show information about all nodes, or should contain
|
527 |
a list of nodes to be queried for information
|
528 |
@rtype: int
|
529 |
@return: the desired exit code
|
530 |
|
531 |
"""
|
532 |
# note: if this starts using RPC fields, and we haven't yet fixed
|
533 |
# hconfd, then we should revert to query=False
|
534 |
cl = GetClient(query=True)
|
535 |
result = cl.QueryNodes(fields=["name", "pip", "sip", |
536 |
"pinst_list", "sinst_list", |
537 |
"master_candidate", "drained", "offline", |
538 |
"master_capable", "vm_capable", "powered", |
539 |
"ndparams", "custom_ndparams"], |
540 |
names=args, use_locking=False)
|
541 |
|
542 |
for (name, primary_ip, secondary_ip, pinst, sinst, is_mc, drained, offline,
|
543 |
master_capable, vm_capable, powered, ndparams, |
544 |
ndparams_custom) in result:
|
545 |
ToStdout("Node name: %s", name)
|
546 |
ToStdout(" primary ip: %s", primary_ip)
|
547 |
ToStdout(" secondary ip: %s", secondary_ip)
|
548 |
ToStdout(" master candidate: %s", is_mc)
|
549 |
ToStdout(" drained: %s", drained)
|
550 |
ToStdout(" offline: %s", offline)
|
551 |
if powered is not None: |
552 |
ToStdout(" powered: %s", powered)
|
553 |
ToStdout(" master_capable: %s", master_capable)
|
554 |
ToStdout(" vm_capable: %s", vm_capable)
|
555 |
if vm_capable:
|
556 |
if pinst:
|
557 |
ToStdout(" primary for instances:")
|
558 |
for iname in utils.NiceSort(pinst): |
559 |
ToStdout(" - %s", iname)
|
560 |
else:
|
561 |
ToStdout(" primary for no instances")
|
562 |
if sinst:
|
563 |
ToStdout(" secondary for instances:")
|
564 |
for iname in utils.NiceSort(sinst): |
565 |
ToStdout(" - %s", iname)
|
566 |
else:
|
567 |
ToStdout(" secondary for no instances")
|
568 |
ToStdout(" node parameters:")
|
569 |
buf = StringIO() |
570 |
FormatParameterDict(buf, ndparams_custom, ndparams, level=2)
|
571 |
ToStdout(buf.getvalue().rstrip("\n"))
|
572 |
|
573 |
return 0 |
574 |
|
575 |
|
576 |
def RemoveNode(opts, args): |
577 |
"""Remove a node from the cluster.
|
578 |
|
579 |
@param opts: the command line options selected by the user
|
580 |
@type args: list
|
581 |
@param args: should contain only one element, the name of
|
582 |
the node to be removed
|
583 |
@rtype: int
|
584 |
@return: the desired exit code
|
585 |
|
586 |
"""
|
587 |
op = opcodes.OpNodeRemove(node_name=args[0])
|
588 |
SubmitOpCode(op, opts=opts) |
589 |
return 0 |
590 |
|
591 |
|
592 |
def PowercycleNode(opts, args): |
593 |
"""Remove a node from the cluster.
|
594 |
|
595 |
@param opts: the command line options selected by the user
|
596 |
@type args: list
|
597 |
@param args: should contain only one element, the name of
|
598 |
the node to be removed
|
599 |
@rtype: int
|
600 |
@return: the desired exit code
|
601 |
|
602 |
"""
|
603 |
node = args[0]
|
604 |
if (not opts.confirm and |
605 |
not AskUser("Are you sure you want to hard powercycle node %s?" % node)): |
606 |
return 2 |
607 |
|
608 |
op = opcodes.OpNodePowercycle(node_name=node, force=opts.force) |
609 |
result = SubmitOrSend(op, opts) |
610 |
if result:
|
611 |
ToStderr(result) |
612 |
return 0 |
613 |
|
614 |
|
615 |
def PowerNode(opts, args): |
616 |
"""Change/ask power state of a node.
|
617 |
|
618 |
@param opts: the command line options selected by the user
|
619 |
@type args: list
|
620 |
@param args: should contain only one element, the name of
|
621 |
the node to be removed
|
622 |
@rtype: int
|
623 |
@return: the desired exit code
|
624 |
|
625 |
"""
|
626 |
command = args.pop(0)
|
627 |
|
628 |
if opts.no_headers:
|
629 |
headers = None
|
630 |
else:
|
631 |
headers = {"node": "Node", "status": "Status"} |
632 |
|
633 |
if command not in _LIST_POWER_COMMANDS: |
634 |
ToStderr("power subcommand %s not supported." % command)
|
635 |
return constants.EXIT_FAILURE
|
636 |
|
637 |
oob_command = "power-%s" % command
|
638 |
|
639 |
if oob_command in _OOB_COMMAND_ASK: |
640 |
if not args: |
641 |
ToStderr("Please provide at least one node for this command")
|
642 |
return constants.EXIT_FAILURE
|
643 |
elif not opts.force and not ConfirmOperation(args, "nodes", |
644 |
"power %s" % command):
|
645 |
return constants.EXIT_FAILURE
|
646 |
assert len(args) > 0 |
647 |
|
648 |
opcodelist = [] |
649 |
if not opts.ignore_status and oob_command == constants.OOB_POWER_OFF: |
650 |
# TODO: This is a little ugly as we can't catch and revert
|
651 |
for node in args: |
652 |
opcodelist.append(opcodes.OpNodeSetParams(node_name=node, offline=True,
|
653 |
auto_promote=opts.auto_promote)) |
654 |
|
655 |
opcodelist.append(opcodes.OpOobCommand(node_names=args, |
656 |
command=oob_command, |
657 |
ignore_status=opts.ignore_status, |
658 |
timeout=opts.oob_timeout, |
659 |
power_delay=opts.power_delay)) |
660 |
|
661 |
cli.SetGenericOpcodeOpts(opcodelist, opts) |
662 |
|
663 |
job_id = cli.SendJob(opcodelist) |
664 |
|
665 |
# We just want the OOB Opcode status
|
666 |
# If it fails PollJob gives us the error message in it
|
667 |
result = cli.PollJob(job_id)[-1]
|
668 |
|
669 |
errs = 0
|
670 |
data = [] |
671 |
for node_result in result: |
672 |
(node_tuple, data_tuple) = node_result |
673 |
(_, node_name) = node_tuple |
674 |
(data_status, data_node) = data_tuple |
675 |
if data_status == constants.RS_NORMAL:
|
676 |
if oob_command == constants.OOB_POWER_STATUS:
|
677 |
if data_node[constants.OOB_POWER_STATUS_POWERED]:
|
678 |
text = "powered"
|
679 |
else:
|
680 |
text = "unpowered"
|
681 |
data.append([node_name, text]) |
682 |
else:
|
683 |
# We don't expect data here, so we just say, it was successfully invoked
|
684 |
data.append([node_name, "invoked"])
|
685 |
else:
|
686 |
errs += 1
|
687 |
data.append([node_name, cli.FormatResultError(data_status, True)])
|
688 |
|
689 |
data = GenerateTable(separator=opts.separator, headers=headers, |
690 |
fields=["node", "status"], data=data) |
691 |
|
692 |
for line in data: |
693 |
ToStdout(line) |
694 |
|
695 |
if errs:
|
696 |
return constants.EXIT_FAILURE
|
697 |
else:
|
698 |
return constants.EXIT_SUCCESS
|
699 |
|
700 |
|
701 |
def Health(opts, args): |
702 |
"""Show health of a node using OOB.
|
703 |
|
704 |
@param opts: the command line options selected by the user
|
705 |
@type args: list
|
706 |
@param args: should contain only one element, the name of
|
707 |
the node to be removed
|
708 |
@rtype: int
|
709 |
@return: the desired exit code
|
710 |
|
711 |
"""
|
712 |
op = opcodes.OpOobCommand(node_names=args, command=constants.OOB_HEALTH, |
713 |
timeout=opts.oob_timeout) |
714 |
result = SubmitOpCode(op, opts=opts) |
715 |
|
716 |
if opts.no_headers:
|
717 |
headers = None
|
718 |
else:
|
719 |
headers = {"node": "Node", "status": "Status"} |
720 |
|
721 |
errs = 0
|
722 |
data = [] |
723 |
for node_result in result: |
724 |
(node_tuple, data_tuple) = node_result |
725 |
(_, node_name) = node_tuple |
726 |
(data_status, data_node) = data_tuple |
727 |
if data_status == constants.RS_NORMAL:
|
728 |
data.append([node_name, "%s=%s" % tuple(data_node[0])]) |
729 |
for item, status in data_node[1:]: |
730 |
data.append(["", "%s=%s" % (item, status)]) |
731 |
else:
|
732 |
errs += 1
|
733 |
data.append([node_name, cli.FormatResultError(data_status, True)])
|
734 |
|
735 |
data = GenerateTable(separator=opts.separator, headers=headers, |
736 |
fields=["node", "status"], data=data) |
737 |
|
738 |
for line in data: |
739 |
ToStdout(line) |
740 |
|
741 |
if errs:
|
742 |
return constants.EXIT_FAILURE
|
743 |
else:
|
744 |
return constants.EXIT_SUCCESS
|
745 |
|
746 |
|
747 |
def ListVolumes(opts, args): |
748 |
"""List logical volumes on node(s).
|
749 |
|
750 |
@param opts: the command line options selected by the user
|
751 |
@type args: list
|
752 |
@param args: should either be an empty list, in which case
|
753 |
we list data for all nodes, or contain a list of nodes
|
754 |
to display data only for those
|
755 |
@rtype: int
|
756 |
@return: the desired exit code
|
757 |
|
758 |
"""
|
759 |
selected_fields = ParseFields(opts.output, _LIST_VOL_DEF_FIELDS) |
760 |
|
761 |
op = opcodes.OpNodeQueryvols(nodes=args, output_fields=selected_fields) |
762 |
output = SubmitOpCode(op, opts=opts) |
763 |
|
764 |
if not opts.no_headers: |
765 |
headers = {"node": "Node", "phys": "PhysDev", |
766 |
"vg": "VG", "name": "Name", |
767 |
"size": "Size", "instance": "Instance"} |
768 |
else:
|
769 |
headers = None
|
770 |
|
771 |
unitfields = ["size"]
|
772 |
|
773 |
numfields = ["size"]
|
774 |
|
775 |
data = GenerateTable(separator=opts.separator, headers=headers, |
776 |
fields=selected_fields, unitfields=unitfields, |
777 |
numfields=numfields, data=output, units=opts.units) |
778 |
|
779 |
for line in data: |
780 |
ToStdout(line) |
781 |
|
782 |
return 0 |
783 |
|
784 |
|
785 |
def ListStorage(opts, args): |
786 |
"""List physical volumes on node(s).
|
787 |
|
788 |
@param opts: the command line options selected by the user
|
789 |
@type args: list
|
790 |
@param args: should either be an empty list, in which case
|
791 |
we list data for all nodes, or contain a list of nodes
|
792 |
to display data only for those
|
793 |
@rtype: int
|
794 |
@return: the desired exit code
|
795 |
|
796 |
"""
|
797 |
# TODO: Default to ST_FILE if LVM is disabled on the cluster
|
798 |
if opts.user_storage_type is None: |
799 |
opts.user_storage_type = constants.ST_LVM_PV |
800 |
|
801 |
storage_type = ConvertStorageType(opts.user_storage_type) |
802 |
|
803 |
selected_fields = ParseFields(opts.output, _LIST_STOR_DEF_FIELDS) |
804 |
|
805 |
op = opcodes.OpNodeQueryStorage(nodes=args, |
806 |
storage_type=storage_type, |
807 |
output_fields=selected_fields) |
808 |
output = SubmitOpCode(op, opts=opts) |
809 |
|
810 |
if not opts.no_headers: |
811 |
headers = { |
812 |
constants.SF_NODE: "Node",
|
813 |
constants.SF_TYPE: "Type",
|
814 |
constants.SF_NAME: "Name",
|
815 |
constants.SF_SIZE: "Size",
|
816 |
constants.SF_USED: "Used",
|
817 |
constants.SF_FREE: "Free",
|
818 |
constants.SF_ALLOCATABLE: "Allocatable",
|
819 |
} |
820 |
else:
|
821 |
headers = None
|
822 |
|
823 |
unitfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE] |
824 |
numfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE] |
825 |
|
826 |
# change raw values to nicer strings
|
827 |
for row in output: |
828 |
for idx, field in enumerate(selected_fields): |
829 |
val = row[idx] |
830 |
if field == constants.SF_ALLOCATABLE:
|
831 |
if val:
|
832 |
val = "Y"
|
833 |
else:
|
834 |
val = "N"
|
835 |
row[idx] = str(val)
|
836 |
|
837 |
data = GenerateTable(separator=opts.separator, headers=headers, |
838 |
fields=selected_fields, unitfields=unitfields, |
839 |
numfields=numfields, data=output, units=opts.units) |
840 |
|
841 |
for line in data: |
842 |
ToStdout(line) |
843 |
|
844 |
return 0 |
845 |
|
846 |
|
847 |
def ModifyStorage(opts, args): |
848 |
"""Modify storage volume on a node.
|
849 |
|
850 |
@param opts: the command line options selected by the user
|
851 |
@type args: list
|
852 |
@param args: should contain 3 items: node name, storage type and volume name
|
853 |
@rtype: int
|
854 |
@return: the desired exit code
|
855 |
|
856 |
"""
|
857 |
(node_name, user_storage_type, volume_name) = args |
858 |
|
859 |
storage_type = ConvertStorageType(user_storage_type) |
860 |
|
861 |
changes = {} |
862 |
|
863 |
if opts.allocatable is not None: |
864 |
changes[constants.SF_ALLOCATABLE] = opts.allocatable |
865 |
|
866 |
if changes:
|
867 |
op = opcodes.OpNodeModifyStorage(node_name=node_name, |
868 |
storage_type=storage_type, |
869 |
name=volume_name, |
870 |
changes=changes) |
871 |
SubmitOrSend(op, opts) |
872 |
else:
|
873 |
ToStderr("No changes to perform, exiting.")
|
874 |
|
875 |
|
876 |
def RepairStorage(opts, args): |
877 |
"""Repairs a storage volume on a node.
|
878 |
|
879 |
@param opts: the command line options selected by the user
|
880 |
@type args: list
|
881 |
@param args: should contain 3 items: node name, storage type and volume name
|
882 |
@rtype: int
|
883 |
@return: the desired exit code
|
884 |
|
885 |
"""
|
886 |
(node_name, user_storage_type, volume_name) = args |
887 |
|
888 |
storage_type = ConvertStorageType(user_storage_type) |
889 |
|
890 |
op = opcodes.OpRepairNodeStorage(node_name=node_name, |
891 |
storage_type=storage_type, |
892 |
name=volume_name, |
893 |
ignore_consistency=opts.ignore_consistency) |
894 |
SubmitOrSend(op, opts) |
895 |
|
896 |
|
897 |
def SetNodeParams(opts, args): |
898 |
"""Modifies a node.
|
899 |
|
900 |
@param opts: the command line options selected by the user
|
901 |
@type args: list
|
902 |
@param args: should contain only one element, the node name
|
903 |
@rtype: int
|
904 |
@return: the desired exit code
|
905 |
|
906 |
"""
|
907 |
all_changes = [opts.master_candidate, opts.drained, opts.offline, |
908 |
opts.master_capable, opts.vm_capable, opts.secondary_ip, |
909 |
opts.ndparams] |
910 |
if (all_changes.count(None) == len(all_changes) and |
911 |
not (opts.hv_state or opts.disk_state)): |
912 |
ToStderr("Please give at least one of the parameters.")
|
913 |
return 1 |
914 |
|
915 |
if opts.disk_state:
|
916 |
disk_state = utils.FlatToDict(opts.disk_state) |
917 |
else:
|
918 |
disk_state = {} |
919 |
|
920 |
hv_state = dict(opts.hv_state)
|
921 |
|
922 |
op = opcodes.OpNodeSetParams(node_name=args[0],
|
923 |
master_candidate=opts.master_candidate, |
924 |
offline=opts.offline, |
925 |
drained=opts.drained, |
926 |
master_capable=opts.master_capable, |
927 |
vm_capable=opts.vm_capable, |
928 |
secondary_ip=opts.secondary_ip, |
929 |
force=opts.force, |
930 |
ndparams=opts.ndparams, |
931 |
auto_promote=opts.auto_promote, |
932 |
powered=opts.node_powered, |
933 |
hv_state=hv_state, |
934 |
disk_state=disk_state) |
935 |
|
936 |
# even if here we process the result, we allow submit only
|
937 |
result = SubmitOrSend(op, opts) |
938 |
|
939 |
if result:
|
940 |
ToStdout("Modified node %s", args[0]) |
941 |
for param, data in result: |
942 |
ToStdout(" - %-5s -> %s", param, data)
|
943 |
return 0 |
944 |
|
945 |
|
946 |
def RestrictedCommand(opts, args): |
947 |
"""Runs a remote command on node(s).
|
948 |
|
949 |
@param opts: Command line options selected by user
|
950 |
@type args: list
|
951 |
@param args: Command line arguments
|
952 |
@rtype: int
|
953 |
@return: Exit code
|
954 |
|
955 |
"""
|
956 |
cl = GetClient() |
957 |
|
958 |
if len(args) > 1 or opts.nodegroup: |
959 |
# Expand node names
|
960 |
nodes = GetOnlineNodes(nodes=args[1:], cl=cl, nodegroup=opts.nodegroup)
|
961 |
else:
|
962 |
raise errors.OpPrereqError("Node group or node names must be given", |
963 |
errors.ECODE_INVAL) |
964 |
|
965 |
op = opcodes.OpRestrictedCommand(command=args[0], nodes=nodes,
|
966 |
use_locking=opts.do_locking) |
967 |
result = SubmitOrSend(op, opts, cl=cl) |
968 |
|
969 |
exit_code = constants.EXIT_SUCCESS |
970 |
|
971 |
for (node, (status, text)) in zip(nodes, result): |
972 |
ToStdout("------------------------------------------------")
|
973 |
if status:
|
974 |
if opts.show_machine_names:
|
975 |
for line in text.splitlines(): |
976 |
ToStdout("%s: %s", node, line)
|
977 |
else:
|
978 |
ToStdout("Node: %s", node)
|
979 |
ToStdout(text) |
980 |
else:
|
981 |
exit_code = constants.EXIT_FAILURE |
982 |
ToStdout(text) |
983 |
|
984 |
return exit_code
|
985 |
|
986 |
|
987 |
class ReplyStatus(object): |
988 |
"""Class holding a reply status for synchronous confd clients.
|
989 |
|
990 |
"""
|
991 |
def __init__(self): |
992 |
self.failure = True |
993 |
self.answer = False |
994 |
|
995 |
|
996 |
def ListDrbd(opts, args): |
997 |
"""Modifies a node.
|
998 |
|
999 |
@param opts: the command line options selected by the user
|
1000 |
@type args: list
|
1001 |
@param args: should contain only one element, the node name
|
1002 |
@rtype: int
|
1003 |
@return: the desired exit code
|
1004 |
|
1005 |
"""
|
1006 |
if len(args) != 1: |
1007 |
ToStderr("Please give one (and only one) node.")
|
1008 |
return constants.EXIT_FAILURE
|
1009 |
|
1010 |
if not constants.ENABLE_CONFD: |
1011 |
ToStderr("Error: this command requires confd support, but it has not"
|
1012 |
" been enabled at build time.")
|
1013 |
return constants.EXIT_FAILURE
|
1014 |
|
1015 |
status = ReplyStatus() |
1016 |
|
1017 |
def ListDrbdConfdCallback(reply): |
1018 |
"""Callback for confd queries"""
|
1019 |
if reply.type == confd_client.UPCALL_REPLY:
|
1020 |
answer = reply.server_reply.answer |
1021 |
reqtype = reply.orig_request.type |
1022 |
if reqtype == constants.CONFD_REQ_NODE_DRBD:
|
1023 |
if reply.server_reply.status != constants.CONFD_REPL_STATUS_OK:
|
1024 |
ToStderr("Query gave non-ok status '%s': %s" %
|
1025 |
(reply.server_reply.status, |
1026 |
reply.server_reply.answer)) |
1027 |
status.failure = True
|
1028 |
return
|
1029 |
if not confd.HTNodeDrbd(answer): |
1030 |
ToStderr("Invalid response from server: expected %s, got %s",
|
1031 |
confd.HTNodeDrbd, answer) |
1032 |
status.failure = True
|
1033 |
else:
|
1034 |
status.failure = False
|
1035 |
status.answer = answer |
1036 |
else:
|
1037 |
ToStderr("Unexpected reply %s!?", reqtype)
|
1038 |
status.failure = True
|
1039 |
|
1040 |
node = args[0]
|
1041 |
hmac = utils.ReadFile(pathutils.CONFD_HMAC_KEY) |
1042 |
filter_callback = confd_client.ConfdFilterCallback(ListDrbdConfdCallback) |
1043 |
counting_callback = confd_client.ConfdCountingCallback(filter_callback) |
1044 |
cf_client = confd_client.ConfdClient(hmac, [constants.IP4_ADDRESS_LOCALHOST], |
1045 |
counting_callback) |
1046 |
req = confd_client.ConfdClientRequest(type=constants.CONFD_REQ_NODE_DRBD, |
1047 |
query=node) |
1048 |
|
1049 |
def DoConfdRequestReply(req): |
1050 |
counting_callback.RegisterQuery(req.rsalt) |
1051 |
cf_client.SendRequest(req, async=False)
|
1052 |
while not counting_callback.AllAnswered(): |
1053 |
if not cf_client.ReceiveReply(): |
1054 |
ToStderr("Did not receive all expected confd replies")
|
1055 |
break
|
1056 |
|
1057 |
DoConfdRequestReply(req) |
1058 |
|
1059 |
if status.failure:
|
1060 |
return constants.EXIT_FAILURE
|
1061 |
|
1062 |
fields = ["node", "minor", "instance", "disk", "role", "peer"] |
1063 |
if opts.no_headers:
|
1064 |
headers = None
|
1065 |
else:
|
1066 |
headers = {"node": "Node", "minor": "Minor", "instance": "Instance", |
1067 |
"disk": "Disk", "role": "Role", "peer": "PeerNode"} |
1068 |
|
1069 |
data = GenerateTable(separator=opts.separator, headers=headers, |
1070 |
fields=fields, data=sorted(status.answer),
|
1071 |
numfields=["minor"])
|
1072 |
for line in data: |
1073 |
ToStdout(line) |
1074 |
|
1075 |
return constants.EXIT_SUCCESS
|
1076 |
|
1077 |
|
1078 |
commands = { |
1079 |
"add": (
|
1080 |
AddNode, [ArgHost(min=1, max=1)], |
1081 |
[SECONDARY_IP_OPT, READD_OPT, NOSSH_KEYCHECK_OPT, NODE_FORCE_JOIN_OPT, |
1082 |
NONODE_SETUP_OPT, VERBOSE_OPT, NODEGROUP_OPT, PRIORITY_OPT, |
1083 |
CAPAB_MASTER_OPT, CAPAB_VM_OPT, NODE_PARAMS_OPT, HV_STATE_OPT, |
1084 |
DISK_STATE_OPT], |
1085 |
"[-s ip] [--readd] [--no-ssh-key-check] [--force-join]"
|
1086 |
" [--no-node-setup] [--verbose]"
|
1087 |
" <node_name>",
|
1088 |
"Add a node to the cluster"),
|
1089 |
"evacuate": (
|
1090 |
EvacuateNode, ARGS_ONE_NODE, |
1091 |
[FORCE_OPT, IALLOCATOR_OPT, NEW_SECONDARY_OPT, EARLY_RELEASE_OPT, |
1092 |
PRIORITY_OPT, PRIMARY_ONLY_OPT, SECONDARY_ONLY_OPT, SUBMIT_OPT], |
1093 |
"[-f] {-I <iallocator> | -n <dst>} [-p | -s] [options...] <node>",
|
1094 |
"Relocate the primary and/or secondary instances from a node"),
|
1095 |
"failover": (
|
1096 |
FailoverNode, ARGS_ONE_NODE, [FORCE_OPT, IGNORE_CONSIST_OPT, |
1097 |
IALLOCATOR_OPT, PRIORITY_OPT], |
1098 |
"[-f] <node>",
|
1099 |
"Stops the primary instances on a node and start them on their"
|
1100 |
" secondary node (only for instances with drbd disk template)"),
|
1101 |
"migrate": (
|
1102 |
MigrateNode, ARGS_ONE_NODE, |
1103 |
[FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, DST_NODE_OPT, |
1104 |
IALLOCATOR_OPT, PRIORITY_OPT, IGNORE_IPOLICY_OPT, |
1105 |
NORUNTIME_CHGS_OPT, SUBMIT_OPT], |
1106 |
"[-f] <node>",
|
1107 |
"Migrate all the primary instance on a node away from it"
|
1108 |
" (only for instances of type drbd)"),
|
1109 |
"info": (
|
1110 |
ShowNodeConfig, ARGS_MANY_NODES, [], |
1111 |
"[<node_name>...]", "Show information about the node(s)"), |
1112 |
"list": (
|
1113 |
ListNodes, ARGS_MANY_NODES, |
1114 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, VERBOSE_OPT, |
1115 |
FORCE_FILTER_OPT], |
1116 |
"[nodes...]",
|
1117 |
"Lists the nodes in the cluster. The available fields can be shown using"
|
1118 |
" the \"list-fields\" command (see the man page for details)."
|
1119 |
" The default field list is (in order): %s." %
|
1120 |
utils.CommaJoin(_LIST_DEF_FIELDS)), |
1121 |
"list-fields": (
|
1122 |
ListNodeFields, [ArgUnknown()], |
1123 |
[NOHDR_OPT, SEP_OPT], |
1124 |
"[fields...]",
|
1125 |
"Lists all available fields for nodes"),
|
1126 |
"modify": (
|
1127 |
SetNodeParams, ARGS_ONE_NODE, |
1128 |
[FORCE_OPT, SUBMIT_OPT, MC_OPT, DRAINED_OPT, OFFLINE_OPT, |
1129 |
CAPAB_MASTER_OPT, CAPAB_VM_OPT, SECONDARY_IP_OPT, |
1130 |
AUTO_PROMOTE_OPT, DRY_RUN_OPT, PRIORITY_OPT, NODE_PARAMS_OPT, |
1131 |
NODE_POWERED_OPT, HV_STATE_OPT, DISK_STATE_OPT], |
1132 |
"<node_name>", "Alters the parameters of a node"), |
1133 |
"powercycle": (
|
1134 |
PowercycleNode, ARGS_ONE_NODE, |
1135 |
[FORCE_OPT, CONFIRM_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1136 |
"<node_name>", "Tries to forcefully powercycle a node"), |
1137 |
"power": (
|
1138 |
PowerNode, |
1139 |
[ArgChoice(min=1, max=1, choices=_LIST_POWER_COMMANDS), |
1140 |
ArgNode()], |
1141 |
[SUBMIT_OPT, AUTO_PROMOTE_OPT, PRIORITY_OPT, IGNORE_STATUS_OPT, |
1142 |
FORCE_OPT, NOHDR_OPT, SEP_OPT, OOB_TIMEOUT_OPT, POWER_DELAY_OPT], |
1143 |
"on|off|cycle|status [nodes...]",
|
1144 |
"Change power state of node by calling out-of-band helper."),
|
1145 |
"remove": (
|
1146 |
RemoveNode, ARGS_ONE_NODE, [DRY_RUN_OPT, PRIORITY_OPT], |
1147 |
"<node_name>", "Removes a node from the cluster"), |
1148 |
"volumes": (
|
1149 |
ListVolumes, [ArgNode()], |
1150 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, PRIORITY_OPT], |
1151 |
"[<node_name>...]", "List logical volumes on node(s)"), |
1152 |
"list-storage": (
|
1153 |
ListStorage, ARGS_MANY_NODES, |
1154 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, _STORAGE_TYPE_OPT, |
1155 |
PRIORITY_OPT], |
1156 |
"[<node_name>...]", "List physical volumes on node(s). The available" |
1157 |
" fields are (see the man page for details): %s." %
|
1158 |
(utils.CommaJoin(_LIST_STOR_HEADERS))), |
1159 |
"modify-storage": (
|
1160 |
ModifyStorage, |
1161 |
[ArgNode(min=1, max=1), |
1162 |
ArgChoice(min=1, max=1, choices=_MODIFIABLE_STORAGE_TYPES), |
1163 |
ArgFile(min=1, max=1)], |
1164 |
[ALLOCATABLE_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1165 |
"<node_name> <storage_type> <name>", "Modify storage volume on a node"), |
1166 |
"repair-storage": (
|
1167 |
RepairStorage, |
1168 |
[ArgNode(min=1, max=1), |
1169 |
ArgChoice(min=1, max=1, choices=_REPAIRABLE_STORAGE_TYPES), |
1170 |
ArgFile(min=1, max=1)], |
1171 |
[IGNORE_CONSIST_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1172 |
"<node_name> <storage_type> <name>",
|
1173 |
"Repairs a storage volume on a node"),
|
1174 |
"list-tags": (
|
1175 |
ListTags, ARGS_ONE_NODE, [], |
1176 |
"<node_name>", "List the tags of the given node"), |
1177 |
"add-tags": (
|
1178 |
AddTags, [ArgNode(min=1, max=1), ArgUnknown()], |
1179 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1180 |
"<node_name> tag...", "Add tags to the given node"), |
1181 |
"remove-tags": (
|
1182 |
RemoveTags, [ArgNode(min=1, max=1), ArgUnknown()], |
1183 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1184 |
"<node_name> tag...", "Remove tags from the given node"), |
1185 |
"health": (
|
1186 |
Health, ARGS_MANY_NODES, |
1187 |
[NOHDR_OPT, SEP_OPT, PRIORITY_OPT, OOB_TIMEOUT_OPT], |
1188 |
"[<node_name>...]", "List health of node(s) using out-of-band"), |
1189 |
"list-drbd": (
|
1190 |
ListDrbd, ARGS_ONE_NODE, |
1191 |
[NOHDR_OPT, SEP_OPT], |
1192 |
"[<node_name>]", "Query the list of used DRBD minors on the given node"), |
1193 |
"restricted-command": (
|
1194 |
RestrictedCommand, [ArgUnknown(min=1, max=1)] + ARGS_MANY_NODES, |
1195 |
[SYNC_OPT, PRIORITY_OPT, SUBMIT_OPT, SHOW_MACHINE_OPT, NODEGROUP_OPT], |
1196 |
"<command> <node_name> [<node_name>...]",
|
1197 |
"Executes a restricted command on node(s)"),
|
1198 |
} |
1199 |
|
1200 |
#: dictionary with aliases for commands
|
1201 |
aliases = { |
1202 |
"show": "info", |
1203 |
} |
1204 |
|
1205 |
|
1206 |
def Main(): |
1207 |
return GenericMain(commands, aliases=aliases,
|
1208 |
override={"tag_type": constants.TAG_NODE},
|
1209 |
env_override=_ENV_OVERRIDE) |