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How to use cmd_config_validate method in localstack

Best Python code snippet using localstack_python
nodepoolcmd.py
Source:nodepoolcmd.py
1#!/usr/bin/env python2#3# Copyright 2013 OpenStack Foundation4#5# Licensed under the Apache License, Version 2.0 (the "License"); you may6# not use this file except in compliance with the License. You may obtain7# a copy of the License at8#9#      http://www.apache.org/licenses/LICENSE-2.010#11# Unless required by applicable law or agreed to in writing, software12# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT13# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the14# License for the specific language governing permissions and limitations15# under the License.16import logging.config17import sys18from prettytable import PrettyTable19from nodepool import launcher20from nodepool import provider_manager21from nodepool import status22from nodepool import zk23from nodepool.cmd import NodepoolApp24from nodepool.cmd.config_validator import ConfigValidator25log = logging.getLogger(__name__)26class NodePoolCmd(NodepoolApp):27    def create_parser(self):28        parser = super(NodePoolCmd, self).create_parser()29        parser.add_argument('-c', dest='config',30                            default='/etc/nodepool/nodepool.yaml',31                            help='path to config file')32        parser.add_argument('-s', dest='secure',33                            help='path to secure file')34        parser.add_argument('--debug', dest='debug', action='store_true',35                            help='show DEBUG level logging')36        subparsers = parser.add_subparsers(title='commands',37                                           description='valid commands',38                                           dest='command',39                                           help='additional help')40        cmd_list = subparsers.add_parser('list', help='list nodes')41        cmd_list.set_defaults(func=self.list)42        cmd_list.add_argument('--detail', action='store_true',43                              help='Output detailed node info')44        cmd_image_list = subparsers.add_parser(45            'image-list', help='list images from providers')46        cmd_image_list.set_defaults(func=self.image_list)47        cmd_dib_image_list = subparsers.add_parser(48            'dib-image-list',49            help='list images built with diskimage-builder')50        cmd_dib_image_list.set_defaults(func=self.dib_image_list)51        cmd_image_build = subparsers.add_parser(52            'image-build',53            help='build image using diskimage-builder')54        cmd_image_build.add_argument('image', help='image name')55        cmd_image_build.set_defaults(func=self.image_build)56        cmd_alien_image_list = subparsers.add_parser(57            'alien-image-list',58            help='list images not accounted for by nodepool')59        cmd_alien_image_list.set_defaults(func=self.alien_image_list)60        cmd_alien_image_list.add_argument('provider', help='provider name',61                                          nargs='?')62        cmd_delete = subparsers.add_parser(63            'delete',64            help='place a node in the DELETE state')65        cmd_delete.set_defaults(func=self.delete)66        cmd_delete.add_argument('id', help='node id')67        cmd_delete.add_argument('--now',68                                action='store_true',69                                help='delete the node in the foreground')70        cmd_image_delete = subparsers.add_parser(71            'image-delete',72            help='delete an image')73        cmd_image_delete.set_defaults(func=self.image_delete)74        cmd_image_delete.add_argument('--provider', help='provider name',75                                      required=True)76        cmd_image_delete.add_argument('--image', help='image name',77                                      required=True)78        cmd_image_delete.add_argument('--upload-id', help='image upload id',79                                      required=True)80        cmd_image_delete.add_argument('--build-id', help='image build id',81                                      required=True)82        cmd_dib_image_delete = subparsers.add_parser(83            'dib-image-delete',84            help='Delete a dib built image from disk along with all cloud '85                 'uploads of this image')86        cmd_dib_image_delete.set_defaults(func=self.dib_image_delete)87        cmd_dib_image_delete.add_argument('id', help='dib image id')88        cmd_config_validate = subparsers.add_parser(89            'config-validate',90            help='Validate configuration file')91        cmd_config_validate.set_defaults(func=self.config_validate)92        cmd_request_list = subparsers.add_parser(93            'request-list',94            help='list the current node requests')95        cmd_request_list.set_defaults(func=self.request_list)96        cmd_info = subparsers.add_parser(97            'info',98            help='Show provider data from zookeeper')99        cmd_info.add_argument(100            'provider',101            help='Provider name',102            metavar='PROVIDER')103        cmd_info.set_defaults(func=self.info)104        cmd_erase = subparsers.add_parser(105            'erase',106            help='Erase provider data from zookeeper')107        cmd_erase.add_argument(108            'provider',109            help='Provider name',110            metavar='PROVIDER')111        cmd_erase.add_argument(112            '--force',113            help='Bypass the warning prompt',114            action='store_true')115        cmd_erase.set_defaults(func=self.erase)116        return parser117    def setup_logging(self):118        # NOTE(jamielennox): This should just be the same as other apps119        if self.args.debug:120            m = '%(asctime)s %(levelname)s %(name)s: %(message)s'121            logging.basicConfig(level=logging.DEBUG, format=m)122        elif self.args.logconfig:123            super(NodePoolCmd, self).setup_logging()124        else:125            m = '%(asctime)s %(levelname)s %(name)s: %(message)s'126            logging.basicConfig(level=logging.INFO, format=m)127            l = logging.getLogger('kazoo')128            l.setLevel(logging.WARNING)129    def list(self, node_id=None, detail=False):130        if hasattr(self.args, 'detail'):131            detail = self.args.detail132        fields = ['id', 'provider', 'label', 'server_id',133                  'public_ipv4', 'ipv6', 'state', 'age', 'locked']134        if detail:135            fields.extend(['pool', 'hostname', 'private_ipv4', 'AZ',136                           'connection_port', 'launcher',137                           'allocated_to', 'hold_job',138                           'comment'])139        results = status.node_list(self.zk, node_id)140        print(status.output(results, 'pretty', fields))141    def dib_image_list(self):142        results = status.dib_image_list(self.zk)143        print(status.output(results, 'pretty'))144    def image_list(self):145        results = status.image_list(self.zk)146        print(status.output(results, 'pretty'))147    def image_build(self, diskimage=None):148        diskimage = diskimage or self.args.image149        if diskimage not in self.pool.config.diskimages:150            # only can build disk images, not snapshots151            raise Exception("Trying to build a non disk-image-builder "152                            "image: %s" % diskimage)153        if self.pool.config.diskimages[diskimage].pause:154            raise Exception(155                "Skipping build request for image %s; paused" % diskimage)156        self.zk.submitBuildRequest(diskimage)157    def alien_image_list(self):158        self.pool.updateConfig()159        t = PrettyTable(["Provider", "Name", "Image ID"])160        t.align = 'l'161        for provider in self.pool.config.providers.values():162            if (self.args.provider and163                    provider.name != self.args.provider):164                continue165            manager = self.pool.getProviderManager(provider.name)166            # Build list of provider images as known by the provider167            provider_images = []168            try:169                # Only consider images marked as managed by nodepool.170                # Prevent cloud-provider images from showing171                # up in alien list since we can't do anything about them172                # anyway.173                provider_images = [174                    image for image in manager.listImages()175                    if 'nodepool_build_id' in image['properties']]176            except Exception as e:177                log.warning("Exception listing alien images for %s: %s"178                            % (provider.name, str(e)))179            alien_ids = []180            uploads = []181            for image in provider.diskimages:182                # Build list of provider images as recorded in ZK183                for bnum in self.zk.getBuildNumbers(image):184                    uploads.extend(185                        self.zk.getUploads(image, bnum,186                                           provider.name,187                                           states=[zk.READY])188                    )189            # Calculate image IDs present in the provider, but not in ZK190            provider_image_ids = set([img['id'] for img in provider_images])191            zk_image_ids = set([img.external_id for img in uploads])192            alien_ids = provider_image_ids - zk_image_ids193            for image in provider_images:194                if image['id'] in alien_ids:195                    t.add_row([provider.name, image['name'], image['id']])196        print(t)197    def delete(self):198        node = self.zk.getNode(self.args.id)199        if not node:200            print("Node id %s not found" % self.args.id)201            return202        self.zk.lockNode(node, blocking=True, timeout=5)203        if self.args.now:204            if node.provider not in self.pool.config.providers:205                print("Provider %s for node %s not defined on this launcher" %206                      (node.provider, node.id))207                return208            provider = self.pool.config.providers[node.provider]209            manager = provider_manager.get_provider(provider)210            manager.start(self.zk)211            launcher.NodeDeleter.delete(self.zk, manager, node)212            manager.stop()213        else:214            node.state = zk.DELETING215            self.zk.storeNode(node)216            self.zk.unlockNode(node)217        self.list(node_id=node.id)218    def dib_image_delete(self):219        (image, build_num) = self.args.id.rsplit('-', 1)220        build = self.zk.getBuild(image, build_num)221        if not build:222            print("Build %s not found" % self.args.id)223            return224        if build.state == zk.BUILDING:225            print("Cannot delete a build in progress")226            return227        build.state = zk.DELETING228        self.zk.storeBuild(image, build, build.id)229    def image_delete(self):230        provider_name = self.args.provider231        image_name = self.args.image232        build_id = self.args.build_id233        upload_id = self.args.upload_id234        image = self.zk.getImageUpload(image_name, build_id, provider_name,235                                       upload_id)236        if not image:237            print("Image upload not found")238            return239        if image.state == zk.UPLOADING:240            print("Cannot delete because image upload in progress")241            return242        image.state = zk.DELETING243        self.zk.storeImageUpload(image.image_name, image.build_id,244                                 image.provider_name, image, image.id)245    def erase(self):246        def do_erase(provider_name, provider_builds, provider_nodes):247            print("Erasing build data for %s..." % provider_name)248            self.zk.removeProviderBuilds(provider_name, provider_builds)249            print("Erasing node data for %s..." % provider_name)250            self.zk.removeProviderNodes(provider_name, provider_nodes)251        provider_name = self.args.provider252        provider_builds = self.zk.getProviderBuilds(provider_name)253        provider_nodes = self.zk.getProviderNodes(provider_name)254        if self.args.force:255            do_erase(provider_name, provider_builds, provider_nodes)256        else:257            print("\nWARNING! This action is not reversible!")258            answer = input("Erase ZooKeeper data for provider %s? [N/y] " %259                           provider_name)260            if answer.lower() != 'y':261                print("Aborting. No data erased.")262            else:263                do_erase(provider_name, provider_builds, provider_nodes)264    def info(self):265        provider_name = self.args.provider266        provider_builds = self.zk.getProviderBuilds(provider_name)267        provider_nodes = self.zk.getProviderNodes(provider_name)268        print("ZooKeeper data for provider %s\n" % provider_name)269        print("Image builds:")270        t = PrettyTable(['Image Name', 'Build IDs'])271        t.align = 'l'272        for image, builds in provider_builds.items():273            t.add_row([image, ','.join(builds)])274        print(t)275        print("\nNodes:")276        t = PrettyTable(['ID', 'Server ID'])277        t.align = 'l'278        for node in provider_nodes:279            t.add_row([node.id, node.external_id])280        print(t)281    def config_validate(self):282        validator = ConfigValidator(self.args.config)283        validator.validate()284        log.info("Configuration validation complete")285        # TODO(asselin,yolanda): add validation of secure.conf286    def request_list(self):287        results = status.request_list(self.zk)288        print(status.output(results, 'pretty'))289    def _wait_for_threads(self, threads):290        for t in threads:291            if t:292                t.join()293    def run(self):294        self.zk = None295        # no arguments, print help messaging, then exit with error(1)296        if not self.args.command:297            self.parser.print_help()298            return 1299        # commands which do not need to start-up or parse config300        if self.args.command in ('config-validate'):301            return self.args.func()302        self.pool = launcher.NodePool(self.args.secure, self.args.config)303        config = self.pool.loadConfig()304        # commands needing ZooKeeper305        if self.args.command in ('image-build', 'dib-image-list',306                                 'image-list', 'dib-image-delete',307                                 'image-delete', 'alien-image-list',308                                 'list', 'delete',309                                 'request-list', 'info', 'erase'):310            self.zk = zk.ZooKeeper(enable_cache=False)311            self.zk.connect(list(config.zookeeper_servers.values()))312        self.pool.setConfig(config)313        self.args.func()314        if self.zk:315            self.zk.disconnect()316def main():317    return NodePoolCmd.main()318if __name__ == "__main__":...
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