Gestionnaire de fichiers - Editer - /usr/lib/python2.7/site-packages/cloudinit/cmd/cloud_id.py
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# This file is part of cloud-init. See LICENSE file for license information. """Commandline utility to list the canonical cloud-id for an instance.""" import argparse import json import sys from cloudinit.sources import ( INSTANCE_JSON_FILE, METADATA_UNKNOWN, canonical_cloud_id) DEFAULT_INSTANCE_JSON = '/run/cloud-init/%s' % INSTANCE_JSON_FILE NAME = 'cloud-id' def get_parser(parser=None): """Build or extend an arg parser for the cloud-id utility. @param parser: Optional existing ArgumentParser instance representing the query subcommand which will be extended to support the args of this utility. @returns: ArgumentParser with proper argument configuration. """ if not parser: parser = argparse.ArgumentParser( prog=NAME, description='Report the canonical cloud-id for this instance') parser.add_argument( '-j', '--json', action='store_true', default=False, help='Report all standardized cloud-id information as json.') parser.add_argument( '-l', '--long', action='store_true', default=False, help='Report extended cloud-id information as tab-delimited string.') parser.add_argument( '-i', '--instance-data', type=str, default=DEFAULT_INSTANCE_JSON, help=('Path to instance-data.json file. Default is %s' % DEFAULT_INSTANCE_JSON)) return parser def error(msg): sys.stderr.write('ERROR: %s\n' % msg) return 1 def handle_args(name, args): """Handle calls to 'cloud-id' cli. Print the canonical cloud-id on which the instance is running. @return: 0 on success, 1 otherwise. """ try: instance_data = json.load(open(args.instance_data)) except IOError: return error( "File not found '%s'. Provide a path to instance data json file" ' using --instance-data' % args.instance_data) except ValueError as e: return error( "File '%s' is not valid json. %s" % (args.instance_data, e)) v1 = instance_data.get('v1', {}) cloud_id = canonical_cloud_id( v1.get('cloud_name', METADATA_UNKNOWN), v1.get('region', METADATA_UNKNOWN), v1.get('platform', METADATA_UNKNOWN)) if args.json: v1['cloud_id'] = cloud_id response = json.dumps( # Pretty, sorted json v1, indent=1, sort_keys=True, separators=(',', ': ')) elif args.long: response = '%s\t%s' % (cloud_id, v1.get('region', METADATA_UNKNOWN)) else: response = cloud_id sys.stdout.write('%s\n' % response) return 0 def main(): """Tool to query specific instance-data values.""" parser = get_parser() sys.exit(handle_args(NAME, parser.parse_args())) if __name__ == '__main__': main() # vi: ts=4 expandtab
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