root / lib / client / gnt_node.py @ 5f6d1b42
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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 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=True)
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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() |
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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) |
390 |
|
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# Keep track of submitted jobs
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jex = JobExecutor(cl=cl, opts=opts) |
393 |
|
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for (status, job_id) in result[constants.JOB_IDS_KEY]: |
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jex.AddJobId(None, status, job_id)
|
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|
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results = jex.GetResults() |
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bad_cnt = len([row for row in results if not row[0]]) |
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if bad_cnt == 0: |
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ToStdout("All instances evacuated successfully.")
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rcode = constants.EXIT_SUCCESS |
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else:
|
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ToStdout("There were %s errors during the evacuation.", bad_cnt)
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rcode = constants.EXIT_FAILURE |
405 |
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return rcode
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|
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|
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def FailoverNode(opts, args): |
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"""Failover all primary instance on a node.
|
411 |
|
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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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"""
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cl = GetClient() |
420 |
force = opts.force |
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selected_fields = ["name", "pinst_list"] |
422 |
|
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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, |
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use_locking=False)
|
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qcl.Close() |
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node, pinst = result[0]
|
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|
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if not pinst: |
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ToStderr("No primary instances on node %s, exiting.", node)
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return 0 |
434 |
|
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pinst = utils.NiceSort(pinst) |
436 |
|
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retcode = 0
|
438 |
|
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if not force and not AskUser("Fail over instance(s) %s?" % |
440 |
(",".join("'%s'" % name for name in pinst))): |
441 |
return 2 |
442 |
|
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jex = JobExecutor(cl=cl, opts=opts) |
444 |
for iname in pinst: |
445 |
op = opcodes.OpInstanceFailover(instance_name=iname, |
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ignore_consistency=opts.ignore_consistency, |
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iallocator=opts.iallocator) |
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jex.QueueJob(iname, op) |
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results = jex.GetResults() |
450 |
bad_cnt = len([row for row in results if not row[0]]) |
451 |
if bad_cnt == 0: |
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ToStdout("All %d instance(s) failed over successfully.", len(results)) |
453 |
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)) |
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return retcode
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|
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|
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def MigrateNode(opts, args): |
460 |
"""Migrate all primary instance on a node.
|
461 |
|
462 |
"""
|
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cl = GetClient() |
464 |
force = opts.force |
465 |
selected_fields = ["name", "pinst_list"] |
466 |
|
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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() |
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((node, pinst), ) = result |
471 |
|
472 |
if not pinst: |
473 |
ToStdout("No primary instances on node %s, exiting." % node)
|
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return 0 |
475 |
|
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pinst = utils.NiceSort(pinst) |
477 |
|
478 |
if not (force or |
479 |
AskUser("Migrate instance(s) %s?" %
|
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utils.CommaJoin(utils.NiceSort(pinst)))): |
481 |
return constants.EXIT_CONFIRMATION
|
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|
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# this should be removed once --non-live is deprecated
|
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if not opts.live and opts.migration_mode is not None: |
485 |
raise errors.OpPrereqError("Only one of the --non-live and " |
486 |
"--migration-mode options can be passed",
|
487 |
errors.ECODE_INVAL) |
488 |
if not opts.live: # --non-live passed |
489 |
mode = constants.HT_MIGRATION_NONLIVE |
490 |
else:
|
491 |
mode = opts.migration_mode |
492 |
|
493 |
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, |
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allow_runtime_changes=opts.allow_runtime_chgs, |
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ignore_ipolicy=opts.ignore_ipolicy) |
498 |
|
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result = SubmitOrSend(op, opts, cl=cl) |
500 |
|
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# Keep track of submitted jobs
|
502 |
jex = JobExecutor(cl=cl, opts=opts) |
503 |
|
504 |
for (status, job_id) in result[constants.JOB_IDS_KEY]: |
505 |
jex.AddJobId(None, status, job_id)
|
506 |
|
507 |
results = jex.GetResults() |
508 |
bad_cnt = len([row for row in results if not row[0]]) |
509 |
if bad_cnt == 0: |
510 |
ToStdout("All instances migrated successfully.")
|
511 |
rcode = constants.EXIT_SUCCESS |
512 |
else:
|
513 |
ToStdout("There were %s errors during the node migration.", bad_cnt)
|
514 |
rcode = constants.EXIT_FAILURE |
515 |
|
516 |
return rcode
|
517 |
|
518 |
|
519 |
def _FormatNodeInfo(node_info): |
520 |
"""Format node information for L{cli.PrintGenericInfo()}.
|
521 |
|
522 |
"""
|
523 |
(name, primary_ip, secondary_ip, pinst, sinst, is_mc, drained, offline, |
524 |
master_capable, vm_capable, powered, ndparams, ndparams_custom) = node_info |
525 |
info = [ |
526 |
("Node name", name),
|
527 |
("primary ip", primary_ip),
|
528 |
("secondary ip", secondary_ip),
|
529 |
("master candidate", is_mc),
|
530 |
("drained", drained),
|
531 |
("offline", offline),
|
532 |
] |
533 |
if powered is not None: |
534 |
info.append(("powered", powered))
|
535 |
info.extend([ |
536 |
("master_capable", master_capable),
|
537 |
("vm_capable", vm_capable),
|
538 |
]) |
539 |
if vm_capable:
|
540 |
info.extend([ |
541 |
("primary for instances",
|
542 |
[iname for iname in utils.NiceSort(pinst)]), |
543 |
("secondary for instances",
|
544 |
[iname for iname in utils.NiceSort(sinst)]), |
545 |
]) |
546 |
info.append(("node parameters",
|
547 |
FormatParamsDictInfo(ndparams_custom, ndparams))) |
548 |
return info
|
549 |
|
550 |
|
551 |
def ShowNodeConfig(opts, args): |
552 |
"""Show node information.
|
553 |
|
554 |
@param opts: the command line options selected by the user
|
555 |
@type args: list
|
556 |
@param args: should either be an empty list, in which case
|
557 |
we show information about all nodes, or should contain
|
558 |
a list of nodes to be queried for information
|
559 |
@rtype: int
|
560 |
@return: the desired exit code
|
561 |
|
562 |
"""
|
563 |
cl = GetClient(query=True)
|
564 |
result = cl.QueryNodes(fields=["name", "pip", "sip", |
565 |
"pinst_list", "sinst_list", |
566 |
"master_candidate", "drained", "offline", |
567 |
"master_capable", "vm_capable", "powered", |
568 |
"ndparams", "custom_ndparams"], |
569 |
names=args, use_locking=False)
|
570 |
PrintGenericInfo([ |
571 |
_FormatNodeInfo(node_info) |
572 |
for node_info in result |
573 |
]) |
574 |
return 0 |
575 |
|
576 |
|
577 |
def RemoveNode(opts, args): |
578 |
"""Remove a node from the cluster.
|
579 |
|
580 |
@param opts: the command line options selected by the user
|
581 |
@type args: list
|
582 |
@param args: should contain only one element, the name of
|
583 |
the node to be removed
|
584 |
@rtype: int
|
585 |
@return: the desired exit code
|
586 |
|
587 |
"""
|
588 |
op = opcodes.OpNodeRemove(node_name=args[0])
|
589 |
SubmitOpCode(op, opts=opts) |
590 |
return 0 |
591 |
|
592 |
|
593 |
def PowercycleNode(opts, args): |
594 |
"""Remove a node from the cluster.
|
595 |
|
596 |
@param opts: the command line options selected by the user
|
597 |
@type args: list
|
598 |
@param args: should contain only one element, the name of
|
599 |
the node to be removed
|
600 |
@rtype: int
|
601 |
@return: the desired exit code
|
602 |
|
603 |
"""
|
604 |
node = args[0]
|
605 |
if (not opts.confirm and |
606 |
not AskUser("Are you sure you want to hard powercycle node %s?" % node)): |
607 |
return 2 |
608 |
|
609 |
op = opcodes.OpNodePowercycle(node_name=node, force=opts.force) |
610 |
result = SubmitOrSend(op, opts) |
611 |
if result:
|
612 |
ToStderr(result) |
613 |
return 0 |
614 |
|
615 |
|
616 |
def PowerNode(opts, args): |
617 |
"""Change/ask power state of a node.
|
618 |
|
619 |
@param opts: the command line options selected by the user
|
620 |
@type args: list
|
621 |
@param args: should contain only one element, the name of
|
622 |
the node to be removed
|
623 |
@rtype: int
|
624 |
@return: the desired exit code
|
625 |
|
626 |
"""
|
627 |
command = args.pop(0)
|
628 |
|
629 |
if opts.no_headers:
|
630 |
headers = None
|
631 |
else:
|
632 |
headers = {"node": "Node", "status": "Status"} |
633 |
|
634 |
if command not in _LIST_POWER_COMMANDS: |
635 |
ToStderr("power subcommand %s not supported." % command)
|
636 |
return constants.EXIT_FAILURE
|
637 |
|
638 |
oob_command = "power-%s" % command
|
639 |
|
640 |
if oob_command in _OOB_COMMAND_ASK: |
641 |
if not args: |
642 |
ToStderr("Please provide at least one node for this command")
|
643 |
return constants.EXIT_FAILURE
|
644 |
elif not opts.force and not ConfirmOperation(args, "nodes", |
645 |
"power %s" % command):
|
646 |
return constants.EXIT_FAILURE
|
647 |
assert len(args) > 0 |
648 |
|
649 |
opcodelist = [] |
650 |
if not opts.ignore_status and oob_command == constants.OOB_POWER_OFF: |
651 |
# TODO: This is a little ugly as we can't catch and revert
|
652 |
for node in args: |
653 |
opcodelist.append(opcodes.OpNodeSetParams(node_name=node, offline=True,
|
654 |
auto_promote=opts.auto_promote)) |
655 |
|
656 |
opcodelist.append(opcodes.OpOobCommand(node_names=args, |
657 |
command=oob_command, |
658 |
ignore_status=opts.ignore_status, |
659 |
timeout=opts.oob_timeout, |
660 |
power_delay=opts.power_delay)) |
661 |
|
662 |
cli.SetGenericOpcodeOpts(opcodelist, opts) |
663 |
|
664 |
job_id = cli.SendJob(opcodelist) |
665 |
|
666 |
# We just want the OOB Opcode status
|
667 |
# If it fails PollJob gives us the error message in it
|
668 |
result = cli.PollJob(job_id)[-1]
|
669 |
|
670 |
errs = 0
|
671 |
data = [] |
672 |
for node_result in result: |
673 |
(node_tuple, data_tuple) = node_result |
674 |
(_, node_name) = node_tuple |
675 |
(data_status, data_node) = data_tuple |
676 |
if data_status == constants.RS_NORMAL:
|
677 |
if oob_command == constants.OOB_POWER_STATUS:
|
678 |
if data_node[constants.OOB_POWER_STATUS_POWERED]:
|
679 |
text = "powered"
|
680 |
else:
|
681 |
text = "unpowered"
|
682 |
data.append([node_name, text]) |
683 |
else:
|
684 |
# We don't expect data here, so we just say, it was successfully invoked
|
685 |
data.append([node_name, "invoked"])
|
686 |
else:
|
687 |
errs += 1
|
688 |
data.append([node_name, cli.FormatResultError(data_status, True)])
|
689 |
|
690 |
data = GenerateTable(separator=opts.separator, headers=headers, |
691 |
fields=["node", "status"], data=data) |
692 |
|
693 |
for line in data: |
694 |
ToStdout(line) |
695 |
|
696 |
if errs:
|
697 |
return constants.EXIT_FAILURE
|
698 |
else:
|
699 |
return constants.EXIT_SUCCESS
|
700 |
|
701 |
|
702 |
def Health(opts, args): |
703 |
"""Show health of a node using OOB.
|
704 |
|
705 |
@param opts: the command line options selected by the user
|
706 |
@type args: list
|
707 |
@param args: should contain only one element, the name of
|
708 |
the node to be removed
|
709 |
@rtype: int
|
710 |
@return: the desired exit code
|
711 |
|
712 |
"""
|
713 |
op = opcodes.OpOobCommand(node_names=args, command=constants.OOB_HEALTH, |
714 |
timeout=opts.oob_timeout) |
715 |
result = SubmitOpCode(op, opts=opts) |
716 |
|
717 |
if opts.no_headers:
|
718 |
headers = None
|
719 |
else:
|
720 |
headers = {"node": "Node", "status": "Status"} |
721 |
|
722 |
errs = 0
|
723 |
data = [] |
724 |
for node_result in result: |
725 |
(node_tuple, data_tuple) = node_result |
726 |
(_, node_name) = node_tuple |
727 |
(data_status, data_node) = data_tuple |
728 |
if data_status == constants.RS_NORMAL:
|
729 |
data.append([node_name, "%s=%s" % tuple(data_node[0])]) |
730 |
for item, status in data_node[1:]: |
731 |
data.append(["", "%s=%s" % (item, status)]) |
732 |
else:
|
733 |
errs += 1
|
734 |
data.append([node_name, cli.FormatResultError(data_status, True)])
|
735 |
|
736 |
data = GenerateTable(separator=opts.separator, headers=headers, |
737 |
fields=["node", "status"], data=data) |
738 |
|
739 |
for line in data: |
740 |
ToStdout(line) |
741 |
|
742 |
if errs:
|
743 |
return constants.EXIT_FAILURE
|
744 |
else:
|
745 |
return constants.EXIT_SUCCESS
|
746 |
|
747 |
|
748 |
def ListVolumes(opts, args): |
749 |
"""List logical volumes on node(s).
|
750 |
|
751 |
@param opts: the command line options selected by the user
|
752 |
@type args: list
|
753 |
@param args: should either be an empty list, in which case
|
754 |
we list data for all nodes, or contain a list of nodes
|
755 |
to display data only for those
|
756 |
@rtype: int
|
757 |
@return: the desired exit code
|
758 |
|
759 |
"""
|
760 |
selected_fields = ParseFields(opts.output, _LIST_VOL_DEF_FIELDS) |
761 |
|
762 |
op = opcodes.OpNodeQueryvols(nodes=args, output_fields=selected_fields) |
763 |
output = SubmitOpCode(op, opts=opts) |
764 |
|
765 |
if not opts.no_headers: |
766 |
headers = {"node": "Node", "phys": "PhysDev", |
767 |
"vg": "VG", "name": "Name", |
768 |
"size": "Size", "instance": "Instance"} |
769 |
else:
|
770 |
headers = None
|
771 |
|
772 |
unitfields = ["size"]
|
773 |
|
774 |
numfields = ["size"]
|
775 |
|
776 |
data = GenerateTable(separator=opts.separator, headers=headers, |
777 |
fields=selected_fields, unitfields=unitfields, |
778 |
numfields=numfields, data=output, units=opts.units) |
779 |
|
780 |
for line in data: |
781 |
ToStdout(line) |
782 |
|
783 |
return 0 |
784 |
|
785 |
|
786 |
def ListStorage(opts, args): |
787 |
"""List physical volumes on node(s).
|
788 |
|
789 |
@param opts: the command line options selected by the user
|
790 |
@type args: list
|
791 |
@param args: should either be an empty list, in which case
|
792 |
we list data for all nodes, or contain a list of nodes
|
793 |
to display data only for those
|
794 |
@rtype: int
|
795 |
@return: the desired exit code
|
796 |
|
797 |
"""
|
798 |
# TODO: Default to ST_FILE if LVM is disabled on the cluster
|
799 |
if opts.user_storage_type is None: |
800 |
opts.user_storage_type = constants.ST_LVM_PV |
801 |
|
802 |
storage_type = ConvertStorageType(opts.user_storage_type) |
803 |
|
804 |
selected_fields = ParseFields(opts.output, _LIST_STOR_DEF_FIELDS) |
805 |
|
806 |
op = opcodes.OpNodeQueryStorage(nodes=args, |
807 |
storage_type=storage_type, |
808 |
output_fields=selected_fields) |
809 |
output = SubmitOpCode(op, opts=opts) |
810 |
|
811 |
if not opts.no_headers: |
812 |
headers = { |
813 |
constants.SF_NODE: "Node",
|
814 |
constants.SF_TYPE: "Type",
|
815 |
constants.SF_NAME: "Name",
|
816 |
constants.SF_SIZE: "Size",
|
817 |
constants.SF_USED: "Used",
|
818 |
constants.SF_FREE: "Free",
|
819 |
constants.SF_ALLOCATABLE: "Allocatable",
|
820 |
} |
821 |
else:
|
822 |
headers = None
|
823 |
|
824 |
unitfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE] |
825 |
numfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE] |
826 |
|
827 |
# change raw values to nicer strings
|
828 |
for row in output: |
829 |
for idx, field in enumerate(selected_fields): |
830 |
val = row[idx] |
831 |
if field == constants.SF_ALLOCATABLE:
|
832 |
if val:
|
833 |
val = "Y"
|
834 |
else:
|
835 |
val = "N"
|
836 |
row[idx] = str(val)
|
837 |
|
838 |
data = GenerateTable(separator=opts.separator, headers=headers, |
839 |
fields=selected_fields, unitfields=unitfields, |
840 |
numfields=numfields, data=output, units=opts.units) |
841 |
|
842 |
for line in data: |
843 |
ToStdout(line) |
844 |
|
845 |
return 0 |
846 |
|
847 |
|
848 |
def ModifyStorage(opts, args): |
849 |
"""Modify storage volume on a node.
|
850 |
|
851 |
@param opts: the command line options selected by the user
|
852 |
@type args: list
|
853 |
@param args: should contain 3 items: node name, storage type and volume name
|
854 |
@rtype: int
|
855 |
@return: the desired exit code
|
856 |
|
857 |
"""
|
858 |
(node_name, user_storage_type, volume_name) = args |
859 |
|
860 |
storage_type = ConvertStorageType(user_storage_type) |
861 |
|
862 |
changes = {} |
863 |
|
864 |
if opts.allocatable is not None: |
865 |
changes[constants.SF_ALLOCATABLE] = opts.allocatable |
866 |
|
867 |
if changes:
|
868 |
op = opcodes.OpNodeModifyStorage(node_name=node_name, |
869 |
storage_type=storage_type, |
870 |
name=volume_name, |
871 |
changes=changes) |
872 |
SubmitOrSend(op, opts) |
873 |
else:
|
874 |
ToStderr("No changes to perform, exiting.")
|
875 |
|
876 |
|
877 |
def RepairStorage(opts, args): |
878 |
"""Repairs a storage volume on a node.
|
879 |
|
880 |
@param opts: the command line options selected by the user
|
881 |
@type args: list
|
882 |
@param args: should contain 3 items: node name, storage type and volume name
|
883 |
@rtype: int
|
884 |
@return: the desired exit code
|
885 |
|
886 |
"""
|
887 |
(node_name, user_storage_type, volume_name) = args |
888 |
|
889 |
storage_type = ConvertStorageType(user_storage_type) |
890 |
|
891 |
op = opcodes.OpRepairNodeStorage(node_name=node_name, |
892 |
storage_type=storage_type, |
893 |
name=volume_name, |
894 |
ignore_consistency=opts.ignore_consistency) |
895 |
SubmitOrSend(op, opts) |
896 |
|
897 |
|
898 |
def SetNodeParams(opts, args): |
899 |
"""Modifies a node.
|
900 |
|
901 |
@param opts: the command line options selected by the user
|
902 |
@type args: list
|
903 |
@param args: should contain only one element, the node name
|
904 |
@rtype: int
|
905 |
@return: the desired exit code
|
906 |
|
907 |
"""
|
908 |
all_changes = [opts.master_candidate, opts.drained, opts.offline, |
909 |
opts.master_capable, opts.vm_capable, opts.secondary_ip, |
910 |
opts.ndparams] |
911 |
if (all_changes.count(None) == len(all_changes) and |
912 |
not (opts.hv_state or opts.disk_state)): |
913 |
ToStderr("Please give at least one of the parameters.")
|
914 |
return 1 |
915 |
|
916 |
if opts.disk_state:
|
917 |
disk_state = utils.FlatToDict(opts.disk_state) |
918 |
else:
|
919 |
disk_state = {} |
920 |
|
921 |
hv_state = dict(opts.hv_state)
|
922 |
|
923 |
op = opcodes.OpNodeSetParams(node_name=args[0],
|
924 |
master_candidate=opts.master_candidate, |
925 |
offline=opts.offline, |
926 |
drained=opts.drained, |
927 |
master_capable=opts.master_capable, |
928 |
vm_capable=opts.vm_capable, |
929 |
secondary_ip=opts.secondary_ip, |
930 |
force=opts.force, |
931 |
ndparams=opts.ndparams, |
932 |
auto_promote=opts.auto_promote, |
933 |
powered=opts.node_powered, |
934 |
hv_state=hv_state, |
935 |
disk_state=disk_state) |
936 |
|
937 |
# even if here we process the result, we allow submit only
|
938 |
result = SubmitOrSend(op, opts) |
939 |
|
940 |
if result:
|
941 |
ToStdout("Modified node %s", args[0]) |
942 |
for param, data in result: |
943 |
ToStdout(" - %-5s -> %s", param, data)
|
944 |
return 0 |
945 |
|
946 |
|
947 |
def RestrictedCommand(opts, args): |
948 |
"""Runs a remote command on node(s).
|
949 |
|
950 |
@param opts: Command line options selected by user
|
951 |
@type args: list
|
952 |
@param args: Command line arguments
|
953 |
@rtype: int
|
954 |
@return: Exit code
|
955 |
|
956 |
"""
|
957 |
cl = GetClient() |
958 |
|
959 |
if len(args) > 1 or opts.nodegroup: |
960 |
# Expand node names
|
961 |
nodes = GetOnlineNodes(nodes=args[1:], cl=cl, nodegroup=opts.nodegroup)
|
962 |
else:
|
963 |
raise errors.OpPrereqError("Node group or node names must be given", |
964 |
errors.ECODE_INVAL) |
965 |
|
966 |
op = opcodes.OpRestrictedCommand(command=args[0], nodes=nodes,
|
967 |
use_locking=opts.do_locking) |
968 |
result = SubmitOrSend(op, opts, cl=cl) |
969 |
|
970 |
exit_code = constants.EXIT_SUCCESS |
971 |
|
972 |
for (node, (status, text)) in zip(nodes, result): |
973 |
ToStdout("------------------------------------------------")
|
974 |
if status:
|
975 |
if opts.show_machine_names:
|
976 |
for line in text.splitlines(): |
977 |
ToStdout("%s: %s", node, line)
|
978 |
else:
|
979 |
ToStdout("Node: %s", node)
|
980 |
ToStdout(text) |
981 |
else:
|
982 |
exit_code = constants.EXIT_FAILURE |
983 |
ToStdout(text) |
984 |
|
985 |
return exit_code
|
986 |
|
987 |
|
988 |
class ReplyStatus(object): |
989 |
"""Class holding a reply status for synchronous confd clients.
|
990 |
|
991 |
"""
|
992 |
def __init__(self): |
993 |
self.failure = True |
994 |
self.answer = False |
995 |
|
996 |
|
997 |
def ListDrbd(opts, args): |
998 |
"""Modifies a node.
|
999 |
|
1000 |
@param opts: the command line options selected by the user
|
1001 |
@type args: list
|
1002 |
@param args: should contain only one element, the node name
|
1003 |
@rtype: int
|
1004 |
@return: the desired exit code
|
1005 |
|
1006 |
"""
|
1007 |
if len(args) != 1: |
1008 |
ToStderr("Please give one (and only one) node.")
|
1009 |
return constants.EXIT_FAILURE
|
1010 |
|
1011 |
if not constants.ENABLE_CONFD: |
1012 |
ToStderr("Error: this command requires confd support, but it has not"
|
1013 |
" been enabled at build time.")
|
1014 |
return constants.EXIT_FAILURE
|
1015 |
|
1016 |
status = ReplyStatus() |
1017 |
|
1018 |
def ListDrbdConfdCallback(reply): |
1019 |
"""Callback for confd queries"""
|
1020 |
if reply.type == confd_client.UPCALL_REPLY:
|
1021 |
answer = reply.server_reply.answer |
1022 |
reqtype = reply.orig_request.type |
1023 |
if reqtype == constants.CONFD_REQ_NODE_DRBD:
|
1024 |
if reply.server_reply.status != constants.CONFD_REPL_STATUS_OK:
|
1025 |
ToStderr("Query gave non-ok status '%s': %s" %
|
1026 |
(reply.server_reply.status, |
1027 |
reply.server_reply.answer)) |
1028 |
status.failure = True
|
1029 |
return
|
1030 |
if not confd.HTNodeDrbd(answer): |
1031 |
ToStderr("Invalid response from server: expected %s, got %s",
|
1032 |
confd.HTNodeDrbd, answer) |
1033 |
status.failure = True
|
1034 |
else:
|
1035 |
status.failure = False
|
1036 |
status.answer = answer |
1037 |
else:
|
1038 |
ToStderr("Unexpected reply %s!?", reqtype)
|
1039 |
status.failure = True
|
1040 |
|
1041 |
node = args[0]
|
1042 |
hmac = utils.ReadFile(pathutils.CONFD_HMAC_KEY) |
1043 |
filter_callback = confd_client.ConfdFilterCallback(ListDrbdConfdCallback) |
1044 |
counting_callback = confd_client.ConfdCountingCallback(filter_callback) |
1045 |
cf_client = confd_client.ConfdClient(hmac, [constants.IP4_ADDRESS_LOCALHOST], |
1046 |
counting_callback) |
1047 |
req = confd_client.ConfdClientRequest(type=constants.CONFD_REQ_NODE_DRBD, |
1048 |
query=node) |
1049 |
|
1050 |
def DoConfdRequestReply(req): |
1051 |
counting_callback.RegisterQuery(req.rsalt) |
1052 |
cf_client.SendRequest(req, async=False)
|
1053 |
while not counting_callback.AllAnswered(): |
1054 |
if not cf_client.ReceiveReply(): |
1055 |
ToStderr("Did not receive all expected confd replies")
|
1056 |
break
|
1057 |
|
1058 |
DoConfdRequestReply(req) |
1059 |
|
1060 |
if status.failure:
|
1061 |
return constants.EXIT_FAILURE
|
1062 |
|
1063 |
fields = ["node", "minor", "instance", "disk", "role", "peer"] |
1064 |
if opts.no_headers:
|
1065 |
headers = None
|
1066 |
else:
|
1067 |
headers = {"node": "Node", "minor": "Minor", "instance": "Instance", |
1068 |
"disk": "Disk", "role": "Role", "peer": "PeerNode"} |
1069 |
|
1070 |
data = GenerateTable(separator=opts.separator, headers=headers, |
1071 |
fields=fields, data=sorted(status.answer),
|
1072 |
numfields=["minor"])
|
1073 |
for line in data: |
1074 |
ToStdout(line) |
1075 |
|
1076 |
return constants.EXIT_SUCCESS
|
1077 |
|
1078 |
|
1079 |
commands = { |
1080 |
"add": (
|
1081 |
AddNode, [ArgHost(min=1, max=1)], |
1082 |
[SECONDARY_IP_OPT, READD_OPT, NOSSH_KEYCHECK_OPT, NODE_FORCE_JOIN_OPT, |
1083 |
NONODE_SETUP_OPT, VERBOSE_OPT, NODEGROUP_OPT, PRIORITY_OPT, |
1084 |
CAPAB_MASTER_OPT, CAPAB_VM_OPT, NODE_PARAMS_OPT, HV_STATE_OPT, |
1085 |
DISK_STATE_OPT], |
1086 |
"[-s ip] [--readd] [--no-ssh-key-check] [--force-join]"
|
1087 |
" [--no-node-setup] [--verbose]"
|
1088 |
" <node_name>",
|
1089 |
"Add a node to the cluster"),
|
1090 |
"evacuate": (
|
1091 |
EvacuateNode, ARGS_ONE_NODE, |
1092 |
[FORCE_OPT, IALLOCATOR_OPT, NEW_SECONDARY_OPT, EARLY_RELEASE_OPT, |
1093 |
PRIORITY_OPT, PRIMARY_ONLY_OPT, SECONDARY_ONLY_OPT, SUBMIT_OPT], |
1094 |
"[-f] {-I <iallocator> | -n <dst>} [-p | -s] [options...] <node>",
|
1095 |
"Relocate the primary and/or secondary instances from a node"),
|
1096 |
"failover": (
|
1097 |
FailoverNode, ARGS_ONE_NODE, [FORCE_OPT, IGNORE_CONSIST_OPT, |
1098 |
IALLOCATOR_OPT, PRIORITY_OPT], |
1099 |
"[-f] <node>",
|
1100 |
"Stops the primary instances on a node and start them on their"
|
1101 |
" secondary node (only for instances with drbd disk template)"),
|
1102 |
"migrate": (
|
1103 |
MigrateNode, ARGS_ONE_NODE, |
1104 |
[FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, DST_NODE_OPT, |
1105 |
IALLOCATOR_OPT, PRIORITY_OPT, IGNORE_IPOLICY_OPT, |
1106 |
NORUNTIME_CHGS_OPT, SUBMIT_OPT], |
1107 |
"[-f] <node>",
|
1108 |
"Migrate all the primary instance on a node away from it"
|
1109 |
" (only for instances of type drbd)"),
|
1110 |
"info": (
|
1111 |
ShowNodeConfig, ARGS_MANY_NODES, [], |
1112 |
"[<node_name>...]", "Show information about the node(s)"), |
1113 |
"list": (
|
1114 |
ListNodes, ARGS_MANY_NODES, |
1115 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, VERBOSE_OPT, |
1116 |
FORCE_FILTER_OPT], |
1117 |
"[nodes...]",
|
1118 |
"Lists the nodes in the cluster. The available fields can be shown using"
|
1119 |
" the \"list-fields\" command (see the man page for details)."
|
1120 |
" The default field list is (in order): %s." %
|
1121 |
utils.CommaJoin(_LIST_DEF_FIELDS)), |
1122 |
"list-fields": (
|
1123 |
ListNodeFields, [ArgUnknown()], |
1124 |
[NOHDR_OPT, SEP_OPT], |
1125 |
"[fields...]",
|
1126 |
"Lists all available fields for nodes"),
|
1127 |
"modify": (
|
1128 |
SetNodeParams, ARGS_ONE_NODE, |
1129 |
[FORCE_OPT, SUBMIT_OPT, MC_OPT, DRAINED_OPT, OFFLINE_OPT, |
1130 |
CAPAB_MASTER_OPT, CAPAB_VM_OPT, SECONDARY_IP_OPT, |
1131 |
AUTO_PROMOTE_OPT, DRY_RUN_OPT, PRIORITY_OPT, NODE_PARAMS_OPT, |
1132 |
NODE_POWERED_OPT, HV_STATE_OPT, DISK_STATE_OPT], |
1133 |
"<node_name>", "Alters the parameters of a node"), |
1134 |
"powercycle": (
|
1135 |
PowercycleNode, ARGS_ONE_NODE, |
1136 |
[FORCE_OPT, CONFIRM_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1137 |
"<node_name>", "Tries to forcefully powercycle a node"), |
1138 |
"power": (
|
1139 |
PowerNode, |
1140 |
[ArgChoice(min=1, max=1, choices=_LIST_POWER_COMMANDS), |
1141 |
ArgNode()], |
1142 |
[SUBMIT_OPT, AUTO_PROMOTE_OPT, PRIORITY_OPT, IGNORE_STATUS_OPT, |
1143 |
FORCE_OPT, NOHDR_OPT, SEP_OPT, OOB_TIMEOUT_OPT, POWER_DELAY_OPT], |
1144 |
"on|off|cycle|status [nodes...]",
|
1145 |
"Change power state of node by calling out-of-band helper."),
|
1146 |
"remove": (
|
1147 |
RemoveNode, ARGS_ONE_NODE, [DRY_RUN_OPT, PRIORITY_OPT], |
1148 |
"<node_name>", "Removes a node from the cluster"), |
1149 |
"volumes": (
|
1150 |
ListVolumes, [ArgNode()], |
1151 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, PRIORITY_OPT], |
1152 |
"[<node_name>...]", "List logical volumes on node(s)"), |
1153 |
"list-storage": (
|
1154 |
ListStorage, ARGS_MANY_NODES, |
1155 |
[NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, _STORAGE_TYPE_OPT, |
1156 |
PRIORITY_OPT], |
1157 |
"[<node_name>...]", "List physical volumes on node(s). The available" |
1158 |
" fields are (see the man page for details): %s." %
|
1159 |
(utils.CommaJoin(_LIST_STOR_HEADERS))), |
1160 |
"modify-storage": (
|
1161 |
ModifyStorage, |
1162 |
[ArgNode(min=1, max=1), |
1163 |
ArgChoice(min=1, max=1, choices=_MODIFIABLE_STORAGE_TYPES), |
1164 |
ArgFile(min=1, max=1)], |
1165 |
[ALLOCATABLE_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1166 |
"<node_name> <storage_type> <name>", "Modify storage volume on a node"), |
1167 |
"repair-storage": (
|
1168 |
RepairStorage, |
1169 |
[ArgNode(min=1, max=1), |
1170 |
ArgChoice(min=1, max=1, choices=_REPAIRABLE_STORAGE_TYPES), |
1171 |
ArgFile(min=1, max=1)], |
1172 |
[IGNORE_CONSIST_OPT, DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1173 |
"<node_name> <storage_type> <name>",
|
1174 |
"Repairs a storage volume on a node"),
|
1175 |
"list-tags": (
|
1176 |
ListTags, ARGS_ONE_NODE, [], |
1177 |
"<node_name>", "List the tags of the given node"), |
1178 |
"add-tags": (
|
1179 |
AddTags, [ArgNode(min=1, max=1), ArgUnknown()], |
1180 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1181 |
"<node_name> tag...", "Add tags to the given node"), |
1182 |
"remove-tags": (
|
1183 |
RemoveTags, [ArgNode(min=1, max=1), ArgUnknown()], |
1184 |
[TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT], |
1185 |
"<node_name> tag...", "Remove tags from the given node"), |
1186 |
"health": (
|
1187 |
Health, ARGS_MANY_NODES, |
1188 |
[NOHDR_OPT, SEP_OPT, PRIORITY_OPT, OOB_TIMEOUT_OPT], |
1189 |
"[<node_name>...]", "List health of node(s) using out-of-band"), |
1190 |
"list-drbd": (
|
1191 |
ListDrbd, ARGS_ONE_NODE, |
1192 |
[NOHDR_OPT, SEP_OPT], |
1193 |
"[<node_name>]", "Query the list of used DRBD minors on the given node"), |
1194 |
"restricted-command": (
|
1195 |
RestrictedCommand, [ArgUnknown(min=1, max=1)] + ARGS_MANY_NODES, |
1196 |
[SYNC_OPT, PRIORITY_OPT, SUBMIT_OPT, SHOW_MACHINE_OPT, NODEGROUP_OPT], |
1197 |
"<command> <node_name> [<node_name>...]",
|
1198 |
"Executes a restricted command on node(s)"),
|
1199 |
} |
1200 |
|
1201 |
#: dictionary with aliases for commands
|
1202 |
aliases = { |
1203 |
"show": "info", |
1204 |
} |
1205 |
|
1206 |
|
1207 |
def Main(): |
1208 |
return GenericMain(commands, aliases=aliases,
|
1209 |
override={"tag_type": constants.TAG_NODE},
|
1210 |
env_override=_ENV_OVERRIDE) |