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#!/usr/bin/env python3 # 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.cmd.devel import read_cfg_paths from cloudinit.cmd.status import UXAppStatus, get_status_details from cloudinit.sources import METADATA_UNKNOWN, canonical_cloud_id from cloudinit.util import error 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. """ default_instance_json = read_cfg_paths().get_runpath("instance_data") 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. " f"Default is {default_instance_json}" ), ) return parser 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 on error, 2 on disabled, 3 on cloud-init not run. """ status_details = get_status_details() if status_details.status == UXAppStatus.DISABLED: sys.stdout.write("{0}\n".format(status_details.status.value)) return 2 elif status_details.status == UXAppStatus.NOT_RUN: sys.stdout.write("{0}\n".format(status_details.status.value)) return 3 try: with open(args.instance_data) as file: instance_data = json.load(file) 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: sys.stderr.write("DEPRECATED: Use: cloud-init query v1\n") 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()
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