1# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"). You 4# may not use this file except in compliance with the License. A copy of 5# the License is located at 6# 7# http://aws.amazon.com/apache2.0/ 8# 9# or in the "license" file accompanying this file. This file is 10# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF 11# ANY KIND, either express or implied. See the License for the specific 12# language governing permissions and limitations under the License. 13 14import json 15import yaml 16 17from awscli.customizations.ecs import exceptions 18 19MAX_CHAR_LENGTH = 46 20APP_PREFIX = 'AppECS-' 21DGP_PREFIX = 'DgpECS-' 22 23 24def find_required_key(resource_name, obj, key): 25 26 if obj is None: 27 raise exceptions.MissingPropertyError( 28 resource=resource_name, prop_name=key) 29 30 result = _get_case_insensitive_key(obj, key) 31 32 if result is None: 33 raise exceptions.MissingPropertyError( 34 resource=resource_name, prop_name=key) 35 else: 36 return result 37 38 39def _get_case_insensitive_key(target_obj, target_key): 40 key_to_match = target_key.lower() 41 key_list = target_obj.keys() 42 43 for key in key_list: 44 if key.lower() == key_to_match: 45 return key 46 47 48def get_app_name(service, cluster, app_value): 49 if app_value is not None: 50 return app_value 51 else: 52 suffix = _get_ecs_suffix(service, cluster) 53 return APP_PREFIX + suffix 54 55 56def get_cluster_name_from_arn(arn): 57 return arn.split('/')[1] 58 59 60def get_deploy_group_name(service, cluster, dg_value): 61 if dg_value is not None: 62 return dg_value 63 else: 64 suffix = _get_ecs_suffix(service, cluster) 65 return DGP_PREFIX + suffix 66 67 68def _get_ecs_suffix(service, cluster): 69 if cluster is None: 70 cluster_name = 'default' 71 else: 72 cluster_name = cluster[:MAX_CHAR_LENGTH] 73 74 return cluster_name + '-' + service[:MAX_CHAR_LENGTH] 75 76 77def parse_appspec(appspec_str): 78 try: 79 return json.loads(appspec_str) 80 except ValueError: 81 return yaml.safe_load(appspec_str) 82