358 lines
13 KiB
Python
Executable File
358 lines
13 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2013 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging.config
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import sys
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from prettytable import PrettyTable
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from nodepool import launcher
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from nodepool import provider_manager
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from nodepool import status
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from nodepool import zk
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from nodepool.cmd import NodepoolApp
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from nodepool.cmd.config_validator import ConfigValidator
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log = logging.getLogger(__name__)
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class NodePoolCmd(NodepoolApp):
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def create_parser(self):
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parser = super(NodePoolCmd, self).create_parser()
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parser.add_argument('-c', dest='config',
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default='/etc/nodepool/nodepool.yaml',
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help='path to config file')
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parser.add_argument('-s', dest='secure',
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default='/etc/nodepool/secure.conf',
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help='path to secure file')
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parser.add_argument('--debug', dest='debug', action='store_true',
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help='show DEBUG level logging')
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subparsers = parser.add_subparsers(title='commands',
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description='valid commands',
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dest='command',
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help='additional help')
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cmd_list = subparsers.add_parser('list', help='list nodes')
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cmd_list.set_defaults(func=self.list)
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cmd_image_list = subparsers.add_parser(
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'image-list', help='list images from providers')
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cmd_image_list.set_defaults(func=self.image_list)
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cmd_dib_image_list = subparsers.add_parser(
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'dib-image-list',
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help='list images built with diskimage-builder')
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cmd_dib_image_list.set_defaults(func=self.dib_image_list)
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cmd_image_build = subparsers.add_parser(
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'image-build',
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help='build image using diskimage-builder')
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cmd_image_build.add_argument('image', help='image name')
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cmd_image_build.set_defaults(func=self.image_build)
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cmd_alien_list = subparsers.add_parser(
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'alien-list',
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help='list nodes not accounted for by nodepool')
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cmd_alien_list.set_defaults(func=self.alien_list)
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cmd_alien_list.add_argument('provider', help='provider name',
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nargs='?')
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cmd_alien_image_list = subparsers.add_parser(
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'alien-image-list',
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help='list images not accounted for by nodepool')
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cmd_alien_image_list.set_defaults(func=self.alien_image_list)
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cmd_alien_image_list.add_argument('provider', help='provider name',
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nargs='?')
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cmd_hold = subparsers.add_parser(
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'hold',
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help='place a node in the HOLD state')
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cmd_hold.set_defaults(func=self.hold)
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cmd_hold.add_argument('id', help='node id')
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cmd_hold.add_argument('--reason',
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help='Reason this node is held',
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required=True)
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cmd_delete = subparsers.add_parser(
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'delete',
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help='place a node in the DELETE state')
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cmd_delete.set_defaults(func=self.delete)
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cmd_delete.add_argument('id', help='node id')
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cmd_delete.add_argument('--now',
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action='store_true',
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help='delete the node in the foreground')
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cmd_image_delete = subparsers.add_parser(
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'image-delete',
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help='delete an image')
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cmd_image_delete.set_defaults(func=self.image_delete)
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cmd_image_delete.add_argument('--provider', help='provider name',
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required=True)
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cmd_image_delete.add_argument('--image', help='image name',
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required=True)
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cmd_image_delete.add_argument('--upload-id', help='image upload id',
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required=True)
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cmd_image_delete.add_argument('--build-id', help='image build id',
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required=True)
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cmd_dib_image_delete = subparsers.add_parser(
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'dib-image-delete',
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help='Delete a dib built image from disk along with all cloud '
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'uploads of this image')
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cmd_dib_image_delete.set_defaults(func=self.dib_image_delete)
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cmd_dib_image_delete.add_argument('id', help='dib image id')
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cmd_config_validate = subparsers.add_parser(
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'config-validate',
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help='Validate configuration file')
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cmd_config_validate.set_defaults(func=self.config_validate)
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cmd_request_list = subparsers.add_parser(
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'request-list',
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help='list the current node requests')
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cmd_request_list.set_defaults(func=self.request_list)
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return parser
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def setup_logging(self):
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# NOTE(jamielennox): This should just be the same as other apps
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if self.args.debug:
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m = '%(asctime)s %(levelname)s %(name)s: %(message)s'
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logging.basicConfig(level=logging.DEBUG, format=m)
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elif self.args.logconfig:
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super(NodePoolCmd, self).setup_logging()
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else:
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m = '%(asctime)s %(levelname)s %(name)s: %(message)s'
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logging.basicConfig(level=logging.INFO, format=m)
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l = logging.getLogger('kazoo')
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l.setLevel(logging.WARNING)
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def list(self, node_id=None):
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print(status.node_list(self.zk, node_id))
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def dib_image_list(self):
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print(status.dib_image_list(self.zk))
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def image_list(self):
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print(status.image_list(self.zk))
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def image_build(self, diskimage=None):
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diskimage = diskimage or self.args.image
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if diskimage not in self.pool.config.diskimages:
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# only can build disk images, not snapshots
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raise Exception("Trying to build a non disk-image-builder "
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"image: %s" % diskimage)
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if self.pool.config.diskimages[diskimage].pause:
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raise Exception(
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"Skipping build request for image %s; paused" % diskimage)
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self.zk.submitBuildRequest(diskimage)
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def alien_list(self):
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self.pool.updateConfig()
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t = PrettyTable(["Provider", "Hostname", "Server ID", "IP"])
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t.align = 'l'
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for provider in self.pool.config.providers.values():
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if (self.args.provider and
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provider.name != self.args.provider):
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continue
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manager = self.pool.getProviderManager(provider)
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try:
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servers = manager.listNodes()
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known = set([n.external_id for n in self.zk.nodeIterator()
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if n.provider == provider.name])
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for server in servers:
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if server.id not in known:
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t.add_row([provider.name, server.name,
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server.id, server.public_v4])
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except Exception as e:
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log.warning("Exception listing aliens for %s: %s"
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% (provider.name, str(e)))
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print(t)
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def alien_image_list(self):
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self.pool.updateConfig()
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t = PrettyTable(["Provider", "Name", "Image ID"])
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t.align = 'l'
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for provider in self.pool.config.providers.values():
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if (self.args.provider and
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provider.name != self.args.provider):
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continue
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manager = self.pool.getProviderManager(provider.name)
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# Build list of provider images as known by the provider
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provider_images = []
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try:
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# Only consider images marked as managed by nodepool.
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# Prevent cloud-provider images from showing
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# up in alien list since we can't do anything about them
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# anyway.
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provider_images = [
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image for image in manager.listImages()
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if 'nodepool_build_id' in image['properties']]
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except Exception as e:
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log.warning("Exception listing alien images for %s: %s"
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% (provider.name, str(e)))
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alien_ids = []
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uploads = []
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for image in provider.diskimages:
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# Build list of provider images as recorded in ZK
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for bnum in self.zk.getBuildNumbers(image):
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uploads.extend(
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self.zk.getUploads(image, bnum,
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provider.name,
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states=[zk.READY])
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)
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# Calculate image IDs present in the provider, but not in ZK
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provider_image_ids = set([img['id'] for img in provider_images])
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zk_image_ids = set([img.external_id for img in uploads])
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alien_ids = provider_image_ids - zk_image_ids
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for image in provider_images:
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if image['id'] in alien_ids:
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t.add_row([provider.name, image['name'], image['id']])
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print(t)
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def hold(self):
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node = self.zk.getNode(self.args.id)
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if not node:
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print("Node id %s not found" % self.args.id)
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return
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node.state = zk.HOLD
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node.comment = self.args.reason
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print("Waiting for lock...")
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self.zk.lockNode(node, blocking=True)
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self.zk.storeNode(node)
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self.zk.unlockNode(node)
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self.list(node_id=self.args.id)
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def delete(self):
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node = self.zk.getNode(self.args.id)
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if not node:
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print("Node id %s not found" % self.args.id)
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return
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provider = self.pool.config.providers[node.provider]
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self.zk.lockNode(node, blocking=True, timeout=5)
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if self.args.now:
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manager = provider_manager.get_provider(provider, True)
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manager.start()
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launcher.NodeDeleter.delete(self.zk, manager, node)
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manager.stop()
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else:
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node.state = zk.DELETING
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self.zk.storeNode(node)
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self.zk.unlockNode(node)
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self.list(node_id=node.id)
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def dib_image_delete(self):
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(image, build_num) = self.args.id.rsplit('-', 1)
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build = self.zk.getBuild(image, build_num)
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if not build:
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print("Build %s not found" % self.args.id)
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return
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if build.state == zk.BUILDING:
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print("Cannot delete a build in progress")
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return
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build.state = zk.DELETING
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self.zk.storeBuild(image, build, build.id)
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def image_delete(self):
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provider_name = self.args.provider
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image_name = self.args.image
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build_id = self.args.build_id
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upload_id = self.args.upload_id
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image = self.zk.getImageUpload(image_name, build_id, provider_name,
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upload_id)
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if not image:
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print("Image upload not found")
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return
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if image.state == zk.UPLOADING:
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print("Cannot delete because image upload in progress")
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return
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image.state = zk.DELETING
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self.zk.storeImageUpload(image.image_name, image.build_id,
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image.provider_name, image, image.id)
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def config_validate(self):
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validator = ConfigValidator(self.args.config)
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validator.validate()
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log.info("Configuration validation complete")
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#TODO(asselin,yolanda): add validation of secure.conf
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def request_list(self):
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print(status.request_list(self.zk))
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def _wait_for_threads(self, threads):
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for t in threads:
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if t:
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t.join()
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def run(self):
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self.zk = None
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# commands which do not need to start-up or parse config
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if self.args.command in ('config-validate'):
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return self.args.func()
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self.pool = launcher.NodePool(self.args.secure, self.args.config)
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config = self.pool.loadConfig()
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# commands needing ZooKeeper
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if self.args.command in ('image-build', 'dib-image-list',
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'image-list', 'dib-image-delete',
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'image-delete', 'alien-image-list',
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'alien-list', 'list', 'hold', 'delete',
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'request-list'):
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self.zk = zk.ZooKeeper()
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self.zk.connect(list(config.zookeeper_servers.values()))
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self.pool.setConfig(config)
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self.args.func()
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if self.zk:
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self.zk.disconnect()
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def main():
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return NodePoolCmd.main()
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if __name__ == "__main__":
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sys.exit(main())
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