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#!/usr/bin/python |
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# |
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|
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# Copyright (C) 2010, 2011, 2012 Google Inc. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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|
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"""Tool to move instances from one cluster to another. |
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|
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""" |
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|
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# pylint: disable=C0103 |
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# C0103: Invalid name move-instance |
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|
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import os |
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import sys |
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import time |
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import logging |
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import optparse |
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import threading |
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|
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from ganeti import cli |
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from ganeti import constants |
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from ganeti import utils |
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from ganeti import workerpool |
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from ganeti import objects |
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from ganeti import compat |
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from ganeti import rapi |
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|
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import ganeti.rapi.client # pylint: disable=W0611 |
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import ganeti.rapi.client_utils |
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from ganeti.rapi.client import UsesRapiClient |
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|
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|
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SRC_RAPI_PORT_OPT = \ |
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cli.cli_option("--src-rapi-port", action="store", type="int", |
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dest="src_rapi_port", default=constants.DEFAULT_RAPI_PORT, |
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help=("Source cluster RAPI port (defaults to %s)" % |
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constants.DEFAULT_RAPI_PORT)) |
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|
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SRC_CA_FILE_OPT = \ |
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cli.cli_option("--src-ca-file", action="store", type="string", |
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dest="src_ca_file", |
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help=("File containing source cluster Certificate" |
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" Authority (CA) in PEM format")) |
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|
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SRC_USERNAME_OPT = \ |
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cli.cli_option("--src-username", action="store", type="string", |
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dest="src_username", default=None, |
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help="Source cluster username") |
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|
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SRC_PASSWORD_FILE_OPT = \ |
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cli.cli_option("--src-password-file", action="store", type="string", |
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dest="src_password_file", |
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help="File containing source cluster password") |
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|
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DEST_RAPI_PORT_OPT = \ |
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cli.cli_option("--dest-rapi-port", action="store", type="int", |
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dest="dest_rapi_port", default=constants.DEFAULT_RAPI_PORT, |
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help=("Destination cluster RAPI port (defaults to source" |
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" cluster RAPI port)")) |
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|
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DEST_CA_FILE_OPT = \ |
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cli.cli_option("--dest-ca-file", action="store", type="string", |
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dest="dest_ca_file", |
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help=("File containing destination cluster Certificate" |
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" Authority (CA) in PEM format (defaults to source" |
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" cluster CA)")) |
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|
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DEST_USERNAME_OPT = \ |
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cli.cli_option("--dest-username", action="store", type="string", |
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dest="dest_username", default=None, |
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help=("Destination cluster username (defaults to" |
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" source cluster username)")) |
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|
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DEST_PASSWORD_FILE_OPT = \ |
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cli.cli_option("--dest-password-file", action="store", type="string", |
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dest="dest_password_file", |
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help=("File containing destination cluster password" |
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" (defaults to source cluster password)")) |
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|
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DEST_INSTANCE_NAME_OPT = \ |
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cli.cli_option("--dest-instance-name", action="store", type="string", |
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dest="dest_instance_name", |
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help=("Instance name on destination cluster (only" |
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" when moving exactly one instance)")) |
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|
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DEST_PRIMARY_NODE_OPT = \ |
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cli.cli_option("--dest-primary-node", action="store", type="string", |
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dest="dest_primary_node", |
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help=("Primary node on destination cluster (only" |
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" when moving exactly one instance)")) |
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|
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DEST_SECONDARY_NODE_OPT = \ |
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cli.cli_option("--dest-secondary-node", action="store", type="string", |
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dest="dest_secondary_node", |
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help=("Secondary node on destination cluster (only" |
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" when moving exactly one instance)")) |
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|
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PARALLEL_OPT = \ |
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cli.cli_option("-p", "--parallel", action="store", type="int", default=1, |
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dest="parallel", metavar="<number>", |
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help="Number of instances to be moved simultaneously") |
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|
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|
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class Error(Exception): |
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"""Generic error. |
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|
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""" |
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|
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|
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class Abort(Error): |
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"""Special exception for aborting import/export. |
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|
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""" |
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|
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|
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class RapiClientFactory: |
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"""Factory class for creating RAPI clients. |
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|
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@ivar src_cluster_name: Source cluster name |
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@ivar dest_cluster_name: Destination cluster name |
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@ivar GetSourceClient: Callable returning new client for source cluster |
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@ivar GetDestClient: Callable returning new client for destination cluster |
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|
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""" |
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def __init__(self, options, src_cluster_name, dest_cluster_name): |
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"""Initializes this class. |
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|
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@param options: Program options |
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@type src_cluster_name: string |
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@param src_cluster_name: Source cluster name |
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@type dest_cluster_name: string |
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@param dest_cluster_name: Destination cluster name |
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|
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""" |
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self.src_cluster_name = src_cluster_name |
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self.dest_cluster_name = dest_cluster_name |
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|
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# TODO: Implement timeouts for RAPI connections |
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# TODO: Support for using system default paths for verifying SSL certificate |
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logging.debug("Using '%s' as source CA", options.src_ca_file) |
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src_curl_config = rapi.client.GenericCurlConfig(cafile=options.src_ca_file) |
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|
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if options.dest_ca_file: |
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logging.debug("Using '%s' as destination CA", options.dest_ca_file) |
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dest_curl_config = \ |
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rapi.client.GenericCurlConfig(cafile=options.dest_ca_file) |
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else: |
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logging.debug("Using source CA for destination") |
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dest_curl_config = src_curl_config |
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|
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logging.debug("Source RAPI server is %s:%s", |
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src_cluster_name, options.src_rapi_port) |
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logging.debug("Source username is '%s'", options.src_username) |
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|
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if options.src_username is None: |
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src_username = "" |
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else: |
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src_username = options.src_username |
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|
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if options.src_password_file: |
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logging.debug("Reading '%s' for source password", |
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options.src_password_file) |
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src_password = utils.ReadOneLineFile(options.src_password_file, |
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strict=True) |
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else: |
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logging.debug("Source has no password") |
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src_password = None |
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|
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self.GetSourceClient = lambda: \ |
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rapi.client.GanetiRapiClient(src_cluster_name, |
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port=options.src_rapi_port, |
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curl_config_fn=src_curl_config, |
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username=src_username, |
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password=src_password) |
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|
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if options.dest_rapi_port: |
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dest_rapi_port = options.dest_rapi_port |
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else: |
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dest_rapi_port = options.src_rapi_port |
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|
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if options.dest_username is None: |
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dest_username = src_username |
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else: |
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dest_username = options.dest_username |
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|
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logging.debug("Destination RAPI server is %s:%s", |
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dest_cluster_name, dest_rapi_port) |
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logging.debug("Destination username is '%s'", dest_username) |
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|
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if options.dest_password_file: |
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logging.debug("Reading '%s' for destination password", |
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options.dest_password_file) |
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dest_password = utils.ReadOneLineFile(options.dest_password_file, |
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strict=True) |
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else: |
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logging.debug("Using source password for destination") |
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dest_password = src_password |
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|
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self.GetDestClient = lambda: \ |
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rapi.client.GanetiRapiClient(dest_cluster_name, |
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port=dest_rapi_port, |
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curl_config_fn=dest_curl_config, |
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username=dest_username, |
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password=dest_password) |
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|
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|
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class MoveJobPollReportCb(cli.JobPollReportCbBase): |
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def __init__(self, abort_check_fn, remote_import_fn): |
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"""Initializes this class. |
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|
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@type abort_check_fn: callable |
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@param abort_check_fn: Function to check whether move is aborted |
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@type remote_import_fn: callable or None |
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@param remote_import_fn: Callback for reporting received remote import |
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information |
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|
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""" |
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cli.JobPollReportCbBase.__init__(self) |
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self._abort_check_fn = abort_check_fn |
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self._remote_import_fn = remote_import_fn |
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|
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def ReportLogMessage(self, job_id, serial, timestamp, log_type, log_msg): |
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"""Handles a log message. |
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|
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""" |
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if log_type == constants.ELOG_REMOTE_IMPORT: |
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logging.debug("Received remote import information") |
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|
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if not self._remote_import_fn: |
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raise RuntimeError("Received unexpected remote import information") |
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|
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assert "x509_ca" in log_msg |
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assert "disks" in log_msg |
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|
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self._remote_import_fn(log_msg) |
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|
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return |
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|
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logging.info("[%s] %s", time.ctime(utils.MergeTime(timestamp)), |
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cli.FormatLogMessage(log_type, log_msg)) |
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|
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def ReportNotChanged(self, job_id, status): |
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"""Called if a job hasn't changed in a while. |
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|
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""" |
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try: |
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# Check whether we were told to abort by the other thread |
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self._abort_check_fn() |
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except Abort: |
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logging.warning("Aborting despite job %s still running", job_id) |
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raise |
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|
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|
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class InstanceMove(object): |
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"""Status class for instance moves. |
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|
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""" |
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def __init__(self, src_instance_name, dest_instance_name, |
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dest_pnode, dest_snode, dest_iallocator, |
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hvparams, beparams, osparams, nics): |
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"""Initializes this class. |
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|
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@type src_instance_name: string |
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@param src_instance_name: Instance name on source cluster |
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@type dest_instance_name: string |
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@param dest_instance_name: Instance name on destination cluster |
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@type dest_pnode: string or None |
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@param dest_pnode: Name of primary node on destination cluster |
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@type dest_snode: string or None |
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@param dest_snode: Name of secondary node on destination cluster |
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@type dest_iallocator: string or None |
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@param dest_iallocator: Name of iallocator to use |
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@type hvparams: dict or None |
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@param hvparams: Hypervisor parameters to override |
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@type beparams: dict or None |
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@param beparams: Backend parameters to override |
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@type osparams: dict or None |
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@param osparams: OS parameters to override |
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@type nics: dict or None |
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@param nics: NICs to override |
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|
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""" |
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self.src_instance_name = src_instance_name |
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self.dest_instance_name = dest_instance_name |
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self.dest_pnode = dest_pnode |
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self.dest_snode = dest_snode |
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self.dest_iallocator = dest_iallocator |
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self.hvparams = hvparams |
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self.beparams = beparams |
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self.osparams = osparams |
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self.nics = nics |
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|
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self.error_message = None |
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|
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|
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class MoveRuntime(object): |
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"""Class to keep track of instance move. |
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|
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""" |
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def __init__(self, move): |
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"""Initializes this class. |
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|
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@type move: L{InstanceMove} |
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|
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""" |
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self.move = move |
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|
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# Thread synchronization |
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self.lock = threading.Lock() |
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self.source_to_dest = threading.Condition(self.lock) |
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self.dest_to_source = threading.Condition(self.lock) |
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|
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# Source information |
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self.src_error_message = None |
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self.src_expinfo = None |
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self.src_instinfo = None |
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|
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# Destination information |
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self.dest_error_message = None |
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self.dest_impinfo = None |
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|
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def HandleErrors(self, prefix, fn, *args): |
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"""Wrapper to catch errors and abort threads. |
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|
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@type prefix: string |
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@param prefix: Variable name prefix ("src" or "dest") |
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@type fn: callable |
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@param fn: Function |
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|
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""" |
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assert prefix in ("dest", "src") |
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|
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try: |
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# Call inner function |
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fn(*args) |
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|
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errmsg = None |
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except Abort: |
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errmsg = "Aborted" |
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except Exception, err: |
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logging.exception("Caught unhandled exception") |
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errmsg = str(err) |
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|
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setattr(self, "%s_error_message" % prefix, errmsg) |
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|
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self.lock.acquire() |
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try: |
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self.source_to_dest.notifyAll() |
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self.dest_to_source.notifyAll() |
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finally: |
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self.lock.release() |
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|
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def CheckAbort(self): |
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"""Check whether thread should be aborted. |
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|
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@raise Abort: When thread should be aborted |
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|
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""" |
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if not (self.src_error_message is None and |
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self.dest_error_message is None): |
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logging.info("Aborting") |
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raise Abort() |
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|
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def Wait(self, cond, check_fn): |
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"""Waits for a condition to become true. |
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|
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@type cond: threading.Condition |
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@param cond: Threading condition |
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@type check_fn: callable |
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@param check_fn: Function to check whether condition is true |
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|
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""" |
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cond.acquire() |
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try: |
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while check_fn(self): |
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self.CheckAbort() |
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cond.wait() |
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finally: |
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cond.release() |
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|
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def PollJob(self, cl, job_id, remote_import_fn=None): |
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"""Wrapper for polling a job. |
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|
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@type cl: L{rapi.client.GanetiRapiClient} |
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@param cl: RAPI client |
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@type job_id: string |
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@param job_id: Job ID |
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@type remote_import_fn: callable or None |
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@param remote_import_fn: Callback for reporting received remote import |
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information |
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|
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""" |
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return rapi.client_utils.PollJob(cl, job_id, |
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MoveJobPollReportCb(self.CheckAbort, |
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remote_import_fn)) |
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|
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|
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class MoveDestExecutor(object): |
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def __init__(self, dest_client, mrt): |
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"""Destination side of an instance move. |
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|
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@type dest_client: L{rapi.client.GanetiRapiClient} |
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@param dest_client: RAPI client |
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@type mrt: L{MoveRuntime} |
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@param mrt: Instance move runtime information |
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|
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""" |
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logging.debug("Waiting for instance information to become available") |
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mrt.Wait(mrt.source_to_dest, |
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lambda mrt: mrt.src_instinfo is None or mrt.src_expinfo is None) |
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|
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logging.info("Creating instance %s in remote-import mode", |
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mrt.move.dest_instance_name) |
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job_id = self._CreateInstance(dest_client, mrt.move.dest_instance_name, |
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mrt.move.dest_pnode, mrt.move.dest_snode, |
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mrt.move.dest_iallocator, |
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mrt.src_instinfo, mrt.src_expinfo, |
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mrt.move.hvparams, mrt.move.beparams, |
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mrt.move.beparams, mrt.move.nics) |
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mrt.PollJob(dest_client, job_id, |
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remote_import_fn=compat.partial(self._SetImportInfo, mrt)) |
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|
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logging.info("Import successful") |
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|
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@staticmethod |
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def _SetImportInfo(mrt, impinfo): |
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"""Sets the remote import information and notifies source thread. |
443 |
|
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@type mrt: L{MoveRuntime} |
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@param mrt: Instance move runtime information |
446 |
@param impinfo: Remote import information |
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|
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""" |
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mrt.dest_to_source.acquire() |
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try: |
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mrt.dest_impinfo = impinfo |
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mrt.dest_to_source.notifyAll() |
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finally: |
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mrt.dest_to_source.release() |
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|
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@staticmethod |
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def _CreateInstance(cl, name, pnode, snode, iallocator, instance, expinfo, |
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override_hvparams, override_beparams, override_osparams, |
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override_nics): |
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"""Starts the instance creation in remote import mode. |
461 |
|
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@type cl: L{rapi.client.GanetiRapiClient} |
463 |
@param cl: RAPI client |
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@type name: string |
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@param name: Instance name |
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@type pnode: string or None |
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@param pnode: Name of primary node on destination cluster |
468 |
@type snode: string or None |
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@param snode: Name of secondary node on destination cluster |
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@type iallocator: string or None |
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@param iallocator: Name of iallocator to use |
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@type instance: dict |
473 |
@param instance: Instance details from source cluster |
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@type expinfo: dict |
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@param expinfo: Prepared export information from source cluster |
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@type override_hvparams: dict or None |
477 |
@param override_hvparams: Hypervisor parameters to override |
478 |
@type override_beparams: dict or None |
479 |
@param override_beparams: Backend parameters to override |
480 |
@type override_osparams: dict or None |
481 |
@param override_osparams: OS parameters to override |
482 |
@type override_nics: dict or None |
483 |
@param override_nics: NICs to override |
484 |
@return: Job ID |
485 |
|
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""" |
487 |
disk_template = instance["disk_template"] |
488 |
|
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disks = [{ |
490 |
constants.IDISK_SIZE: i["size"], |
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constants.IDISK_MODE: i["mode"], |
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constants.IDISK_NAME: str(i.get("name")), |
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} for i in instance["disks"]] |
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|
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nics = [{ |
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constants.INIC_IP: ip, |
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constants.INIC_MAC: mac, |
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constants.INIC_MODE: mode, |
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constants.INIC_LINK: link, |
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constants.INIC_NETWORK: network, |
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constants.INIC_NAME: nic_name |
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} for nic_name, _, ip, mac, mode, link, network, _ in instance["nics"]] |
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|
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if len(override_nics) > len(nics): |
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raise Error("Can not create new NICs") |
506 |
|
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if override_nics: |
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assert len(override_nics) <= len(nics) |
509 |
for idx, (nic, override) in enumerate(zip(nics, override_nics)): |
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nics[idx] = objects.FillDict(nic, override) |
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|
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# TODO: Should this be the actual up/down status? (run_state) |
513 |
start = (instance["config_state"] == "up") |
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|
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assert len(disks) == len(instance["disks"]) |
516 |
assert len(nics) == len(instance["nics"]) |
517 |
|
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inst_beparams = instance["be_instance"] |
519 |
if not inst_beparams: |
520 |
inst_beparams = {} |
521 |
|
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inst_hvparams = instance["hv_instance"] |
523 |
if not inst_hvparams: |
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inst_hvparams = {} |
525 |
|
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inst_osparams = instance["os_instance"] |
527 |
if not inst_osparams: |
528 |
inst_osparams = {} |
529 |
|
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return cl.CreateInstance(constants.INSTANCE_REMOTE_IMPORT, |
531 |
name, disk_template, disks, nics, |
532 |
os=instance["os"], |
533 |
pnode=pnode, |
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snode=snode, |
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start=start, |
536 |
ip_check=False, |
537 |
iallocator=iallocator, |
538 |
hypervisor=instance["hypervisor"], |
539 |
source_handshake=expinfo["handshake"], |
540 |
source_x509_ca=expinfo["x509_ca"], |
541 |
source_instance_name=instance["name"], |
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beparams=objects.FillDict(inst_beparams, |
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override_beparams), |
544 |
hvparams=objects.FillDict(inst_hvparams, |
545 |
override_hvparams), |
546 |
osparams=objects.FillDict(inst_osparams, |
547 |
override_osparams)) |
548 |
|
549 |
|
550 |
class MoveSourceExecutor(object): |
551 |
def __init__(self, src_client, mrt): |
552 |
"""Source side of an instance move. |
553 |
|
554 |
@type src_client: L{rapi.client.GanetiRapiClient} |
555 |
@param src_client: RAPI client |
556 |
@type mrt: L{MoveRuntime} |
557 |
@param mrt: Instance move runtime information |
558 |
|
559 |
""" |
560 |
logging.info("Checking whether instance exists") |
561 |
self._CheckInstance(src_client, mrt.move.src_instance_name) |
562 |
|
563 |
logging.info("Retrieving instance information from source cluster") |
564 |
instinfo = self._GetInstanceInfo(src_client, mrt.PollJob, |
565 |
mrt.move.src_instance_name) |
566 |
|
567 |
logging.info("Preparing export on source cluster") |
568 |
expinfo = self._PrepareExport(src_client, mrt.PollJob, |
569 |
mrt.move.src_instance_name) |
570 |
assert "handshake" in expinfo |
571 |
assert "x509_key_name" in expinfo |
572 |
assert "x509_ca" in expinfo |
573 |
|
574 |
# Hand information to destination thread |
575 |
mrt.source_to_dest.acquire() |
576 |
try: |
577 |
mrt.src_instinfo = instinfo |
578 |
mrt.src_expinfo = expinfo |
579 |
mrt.source_to_dest.notifyAll() |
580 |
finally: |
581 |
mrt.source_to_dest.release() |
582 |
|
583 |
logging.info("Waiting for destination information to become available") |
584 |
mrt.Wait(mrt.dest_to_source, lambda mrt: mrt.dest_impinfo is None) |
585 |
|
586 |
logging.info("Starting remote export on source cluster") |
587 |
self._ExportInstance(src_client, mrt.PollJob, mrt.move.src_instance_name, |
588 |
expinfo["x509_key_name"], mrt.dest_impinfo) |
589 |
|
590 |
logging.info("Export successful") |
591 |
|
592 |
@staticmethod |
593 |
def _CheckInstance(cl, name): |
594 |
"""Checks whether the instance exists on the source cluster. |
595 |
|
596 |
@type cl: L{rapi.client.GanetiRapiClient} |
597 |
@param cl: RAPI client |
598 |
@type name: string |
599 |
@param name: Instance name |
600 |
|
601 |
""" |
602 |
try: |
603 |
cl.GetInstance(name) |
604 |
except rapi.client.GanetiApiError, err: |
605 |
if err.code == rapi.client.HTTP_NOT_FOUND: |
606 |
raise Error("Instance %s not found (%s)" % (name, str(err))) |
607 |
raise |
608 |
|
609 |
@staticmethod |
610 |
def _GetInstanceInfo(cl, poll_job_fn, name): |
611 |
"""Retrieves detailed instance information from source cluster. |
612 |
|
613 |
@type cl: L{rapi.client.GanetiRapiClient} |
614 |
@param cl: RAPI client |
615 |
@type poll_job_fn: callable |
616 |
@param poll_job_fn: Function to poll for job result |
617 |
@type name: string |
618 |
@param name: Instance name |
619 |
|
620 |
""" |
621 |
job_id = cl.GetInstanceInfo(name, static=True) |
622 |
result = poll_job_fn(cl, job_id) |
623 |
assert len(result[0].keys()) == 1 |
624 |
return result[0][result[0].keys()[0]] |
625 |
|
626 |
@staticmethod |
627 |
def _PrepareExport(cl, poll_job_fn, name): |
628 |
"""Prepares export on source cluster. |
629 |
|
630 |
@type cl: L{rapi.client.GanetiRapiClient} |
631 |
@param cl: RAPI client |
632 |
@type poll_job_fn: callable |
633 |
@param poll_job_fn: Function to poll for job result |
634 |
@type name: string |
635 |
@param name: Instance name |
636 |
|
637 |
""" |
638 |
job_id = cl.PrepareExport(name, constants.EXPORT_MODE_REMOTE) |
639 |
return poll_job_fn(cl, job_id)[0] |
640 |
|
641 |
@staticmethod |
642 |
def _ExportInstance(cl, poll_job_fn, name, x509_key_name, impinfo): |
643 |
"""Exports instance from source cluster. |
644 |
|
645 |
@type cl: L{rapi.client.GanetiRapiClient} |
646 |
@param cl: RAPI client |
647 |
@type poll_job_fn: callable |
648 |
@param poll_job_fn: Function to poll for job result |
649 |
@type name: string |
650 |
@param name: Instance name |
651 |
@param x509_key_name: Source X509 key |
652 |
@param impinfo: Import information from destination cluster |
653 |
|
654 |
""" |
655 |
job_id = cl.ExportInstance(name, constants.EXPORT_MODE_REMOTE, |
656 |
impinfo["disks"], shutdown=True, |
657 |
remove_instance=True, |
658 |
x509_key_name=x509_key_name, |
659 |
destination_x509_ca=impinfo["x509_ca"]) |
660 |
(fin_resu, dresults) = poll_job_fn(cl, job_id)[0] |
661 |
|
662 |
if not (fin_resu and compat.all(dresults)): |
663 |
raise Error("Export failed for disks %s" % |
664 |
utils.CommaJoin(str(idx) for idx, result |
665 |
in enumerate(dresults) if not result)) |
666 |
|
667 |
|
668 |
class MoveSourceWorker(workerpool.BaseWorker): |
669 |
def RunTask(self, rapi_factory, move): # pylint: disable=W0221 |
670 |
"""Executes an instance move. |
671 |
|
672 |
@type rapi_factory: L{RapiClientFactory} |
673 |
@param rapi_factory: RAPI client factory |
674 |
@type move: L{InstanceMove} |
675 |
@param move: Instance move information |
676 |
|
677 |
""" |
678 |
try: |
679 |
logging.info("Preparing to move %s from cluster %s to %s as %s", |
680 |
move.src_instance_name, rapi_factory.src_cluster_name, |
681 |
rapi_factory.dest_cluster_name, move.dest_instance_name) |
682 |
|
683 |
mrt = MoveRuntime(move) |
684 |
|
685 |
logging.debug("Starting destination thread") |
686 |
dest_thread = threading.Thread(name="DestFor%s" % self.getName(), |
687 |
target=mrt.HandleErrors, |
688 |
args=("dest", MoveDestExecutor, |
689 |
rapi_factory.GetDestClient(), |
690 |
mrt, )) |
691 |
dest_thread.start() |
692 |
try: |
693 |
mrt.HandleErrors("src", MoveSourceExecutor, |
694 |
rapi_factory.GetSourceClient(), mrt) |
695 |
finally: |
696 |
dest_thread.join() |
697 |
|
698 |
if mrt.src_error_message or mrt.dest_error_message: |
699 |
move.error_message = ("Source error: %s, destination error: %s" % |
700 |
(mrt.src_error_message, mrt.dest_error_message)) |
701 |
else: |
702 |
move.error_message = None |
703 |
except Exception, err: # pylint: disable=W0703 |
704 |
logging.exception("Caught unhandled exception") |
705 |
move.error_message = str(err) |
706 |
|
707 |
|
708 |
def CheckRapiSetup(rapi_factory): |
709 |
"""Checks the RAPI setup by retrieving the version. |
710 |
|
711 |
@type rapi_factory: L{RapiClientFactory} |
712 |
@param rapi_factory: RAPI client factory |
713 |
|
714 |
""" |
715 |
src_client = rapi_factory.GetSourceClient() |
716 |
logging.info("Connecting to source RAPI server") |
717 |
logging.info("Source cluster RAPI version: %s", src_client.GetVersion()) |
718 |
|
719 |
dest_client = rapi_factory.GetDestClient() |
720 |
logging.info("Connecting to destination RAPI server") |
721 |
logging.info("Destination cluster RAPI version: %s", dest_client.GetVersion()) |
722 |
|
723 |
|
724 |
def ParseOptions(): |
725 |
"""Parses options passed to program. |
726 |
|
727 |
""" |
728 |
program = os.path.basename(sys.argv[0]) |
729 |
|
730 |
parser = optparse.OptionParser(usage=("%prog [--debug|--verbose]" |
731 |
" <source-cluster> <dest-cluster>" |
732 |
" <instance...>"), |
733 |
prog=program) |
734 |
parser.add_option(cli.DEBUG_OPT) |
735 |
parser.add_option(cli.VERBOSE_OPT) |
736 |
parser.add_option(cli.IALLOCATOR_OPT) |
737 |
parser.add_option(cli.BACKEND_OPT) |
738 |
parser.add_option(cli.HVOPTS_OPT) |
739 |
parser.add_option(cli.OSPARAMS_OPT) |
740 |
parser.add_option(cli.NET_OPT) |
741 |
parser.add_option(SRC_RAPI_PORT_OPT) |
742 |
parser.add_option(SRC_CA_FILE_OPT) |
743 |
parser.add_option(SRC_USERNAME_OPT) |
744 |
parser.add_option(SRC_PASSWORD_FILE_OPT) |
745 |
parser.add_option(DEST_RAPI_PORT_OPT) |
746 |
parser.add_option(DEST_CA_FILE_OPT) |
747 |
parser.add_option(DEST_USERNAME_OPT) |
748 |
parser.add_option(DEST_PASSWORD_FILE_OPT) |
749 |
parser.add_option(DEST_INSTANCE_NAME_OPT) |
750 |
parser.add_option(DEST_PRIMARY_NODE_OPT) |
751 |
parser.add_option(DEST_SECONDARY_NODE_OPT) |
752 |
parser.add_option(PARALLEL_OPT) |
753 |
|
754 |
(options, args) = parser.parse_args() |
755 |
|
756 |
return (parser, options, args) |
757 |
|
758 |
|
759 |
def CheckOptions(parser, options, args): |
760 |
"""Checks options and arguments for validity. |
761 |
|
762 |
""" |
763 |
if len(args) < 3: |
764 |
parser.error("Not enough arguments") |
765 |
|
766 |
src_cluster_name = args.pop(0) |
767 |
dest_cluster_name = args.pop(0) |
768 |
instance_names = args |
769 |
|
770 |
assert len(instance_names) > 0 |
771 |
|
772 |
# TODO: Remove once using system default paths for SSL certificate |
773 |
# verification is implemented |
774 |
if not options.src_ca_file: |
775 |
parser.error("Missing source cluster CA file") |
776 |
|
777 |
if options.parallel < 1: |
778 |
parser.error("Number of simultaneous moves must be >= 1") |
779 |
|
780 |
if not (bool(options.iallocator) ^ |
781 |
bool(options.dest_primary_node or options.dest_secondary_node)): |
782 |
parser.error("Destination node and iallocator options exclude each other") |
783 |
|
784 |
if len(instance_names) == 1: |
785 |
# Moving one instance only |
786 |
if not (options.iallocator or |
787 |
options.dest_primary_node or |
788 |
options.dest_secondary_node): |
789 |
parser.error("An iallocator or the destination node is required") |
790 |
|
791 |
if options.hvparams: |
792 |
utils.ForceDictType(options.hvparams, constants.HVS_PARAMETER_TYPES) |
793 |
|
794 |
if options.beparams: |
795 |
utils.ForceDictType(options.beparams, constants.BES_PARAMETER_TYPES) |
796 |
|
797 |
if options.nics: |
798 |
options.nics = cli.ParseNicOption(options.nics) |
799 |
else: |
800 |
# Moving more than one instance |
801 |
if (options.dest_instance_name or options.dest_primary_node or |
802 |
options.dest_secondary_node or options.hvparams or |
803 |
options.beparams or options.osparams or options.nics): |
804 |
parser.error("The options --dest-instance-name, --dest-primary-node," |
805 |
" --dest-secondary-node, --hypervisor-parameters," |
806 |
" --backend-parameters, --os-parameters and --net can" |
807 |
" only be used when moving exactly one instance") |
808 |
|
809 |
if not options.iallocator: |
810 |
parser.error("An iallocator must be specified for moving more than one" |
811 |
" instance") |
812 |
|
813 |
return (src_cluster_name, dest_cluster_name, instance_names) |
814 |
|
815 |
|
816 |
@UsesRapiClient |
817 |
def main(): |
818 |
"""Main routine. |
819 |
|
820 |
""" |
821 |
(parser, options, args) = ParseOptions() |
822 |
|
823 |
utils.SetupToolLogging(options.debug, options.verbose, threadname=True) |
824 |
|
825 |
(src_cluster_name, dest_cluster_name, instance_names) = \ |
826 |
CheckOptions(parser, options, args) |
827 |
|
828 |
logging.info("Source cluster: %s", src_cluster_name) |
829 |
logging.info("Destination cluster: %s", dest_cluster_name) |
830 |
logging.info("Instances to be moved: %s", utils.CommaJoin(instance_names)) |
831 |
|
832 |
rapi_factory = RapiClientFactory(options, src_cluster_name, dest_cluster_name) |
833 |
|
834 |
CheckRapiSetup(rapi_factory) |
835 |
|
836 |
assert (len(instance_names) == 1 or |
837 |
not (options.dest_primary_node or options.dest_secondary_node)) |
838 |
assert len(instance_names) == 1 or options.iallocator |
839 |
assert (len(instance_names) > 1 or options.iallocator or |
840 |
options.dest_primary_node or options.dest_secondary_node) |
841 |
assert (len(instance_names) == 1 or |
842 |
not (options.hvparams or options.beparams or options.osparams or |
843 |
options.nics)) |
844 |
|
845 |
# Prepare list of instance moves |
846 |
moves = [] |
847 |
for src_instance_name in instance_names: |
848 |
if options.dest_instance_name: |
849 |
assert len(instance_names) == 1 |
850 |
# Rename instance |
851 |
dest_instance_name = options.dest_instance_name |
852 |
else: |
853 |
dest_instance_name = src_instance_name |
854 |
|
855 |
moves.append(InstanceMove(src_instance_name, dest_instance_name, |
856 |
options.dest_primary_node, |
857 |
options.dest_secondary_node, |
858 |
options.iallocator, options.hvparams, |
859 |
options.beparams, options.osparams, |
860 |
options.nics)) |
861 |
|
862 |
assert len(moves) == len(instance_names) |
863 |
|
864 |
# Start workerpool |
865 |
wp = workerpool.WorkerPool("Move", options.parallel, MoveSourceWorker) |
866 |
try: |
867 |
# Add instance moves to workerpool |
868 |
for move in moves: |
869 |
wp.AddTask((rapi_factory, move)) |
870 |
|
871 |
# Wait for all moves to finish |
872 |
wp.Quiesce() |
873 |
|
874 |
finally: |
875 |
wp.TerminateWorkers() |
876 |
|
877 |
# There should be no threads running at this point, hence not using locks |
878 |
# anymore |
879 |
|
880 |
logging.info("Instance move results:") |
881 |
|
882 |
for move in moves: |
883 |
if move.dest_instance_name == move.src_instance_name: |
884 |
name = move.src_instance_name |
885 |
else: |
886 |
name = "%s as %s" % (move.src_instance_name, move.dest_instance_name) |
887 |
|
888 |
if move.error_message: |
889 |
msg = "Failed (%s)" % move.error_message |
890 |
else: |
891 |
msg = "Success" |
892 |
|
893 |
logging.info("%s: %s", name, msg) |
894 |
|
895 |
if compat.any(move.error_message for move in moves): |
896 |
sys.exit(constants.EXIT_FAILURE) |
897 |
|
898 |
sys.exit(constants.EXIT_SUCCESS) |
899 |
|
900 |
|
901 |
if __name__ == "__main__": |
902 |
main() |