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