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How to use get_local_region method in localstack
Best Python code snippet using localstack_python
aws_stack.py
Source:aws_stack.py 
...29class Environment(object):30 def __init__(self, region=None, prefix=None):31 # target is the runtime environment to use, e.g.,32 # 'local' for local mode33 self.region = region or get_local_region()34 # prefix can be 'prod', 'stg', 'uat-1', etc.35 self.prefix = prefix36 def apply_json(self, j):37 if isinstance(j, str):38 j = json.loads(j)39 self.__dict__.update(j)40 @staticmethod41 def from_string(s):42 parts = s.split(':')43 if len(parts) == 1:44 if s in PREDEFINED_ENVIRONMENTS:45 return PREDEFINED_ENVIRONMENTS[s]46 parts = [get_local_region(), s]47 if len(parts) > 2:48 raise Exception('Invalid environment string "%s"' % s)49 region = parts[0]50 prefix = parts[1]51 return Environment(region=region, prefix=prefix)52 @staticmethod53 def from_json(j):54 if not isinstance(j, dict):55 j = j.to_dict()56 result = Environment()57 result.apply_json(j)58 return result59 def __str__(self):60 return '%s:%s' % (self.region, self.prefix)61PREDEFINED_ENVIRONMENTS = {62 ENV_DEV: Environment(region=REGION_LOCAL, prefix=ENV_DEV)63}64def get_environment(env=None, region_name=None):65 """66 Return an Environment object based on the input arguments.67 Parameter `env` can be either of:68 * None (or empty), in which case the rules below are applied to (env = os.environ['ENV'] or ENV_DEV)69 * an Environment object (then this object is returned)70 * a string '<region>:<name>', which corresponds to Environment(region='<region>', prefix='<prefix>')71 * the predefined string 'dev' (ENV_DEV), which implies Environment(region='local', prefix='dev')72 * a string '<name>', which implies Environment(region=DEFAULT_REGION, prefix='<name>')73 Additionally, parameter `region_name` can be used to override DEFAULT_REGION.74 """75 if not env:76 if 'ENV' in os.environ:77 env = os.environ['ENV']78 else:79 env = ENV_DEV80 elif not is_string(env) and not isinstance(env, Environment):81 raise Exception('Invalid environment: %s' % env)82 if is_string(env):83 env = Environment.from_string(env)84 if region_name:85 env.region = region_name86 if not env.region:87 raise Exception('Invalid region in environment: "%s"' % env)88 return env89def connect_to_resource(service_name, env=None, region_name=None, endpoint_url=None):90 """91 Generic method to obtain an AWS service resource using boto3, based on environment, region, or custom endpoint_url.92 """93 return connect_to_service(service_name, client=False, env=env, region_name=region_name, endpoint_url=endpoint_url)94def get_boto3_credentials():95 if CUSTOM_BOTO3_SESSION:96 return CUSTOM_BOTO3_SESSION.get_credentials()97 return boto3.session.Session().get_credentials()98def get_boto3_session():99 if CUSTOM_BOTO3_SESSION:100 return CUSTOM_BOTO3_SESSION101 if CREATE_NEW_SESSION_PER_BOTO3_CONNECTION:102 return boto3.session.Session()103 # return default session104 return boto3105def get_local_region():106 session = boto3.session.Session()107 return session.region_name or DEFAULT_REGION108def get_local_service_url(service_name):109 if service_name == 's3api':110 service_name = 's3'111 return os.environ['TEST_%s_URL' % (service_name.upper().replace('-', '_'))]112def is_service_enabled(service_name):113 """ Return whether the service with the given name (e.g., "lambda") is available. """114 try:115 url = get_local_service_url(service_name)116 assert url117 return is_port_open(url, http_path='/', expect_success=False)118 except Exception:119 return False120def connect_to_service(service_name, client=True, env=None, region_name=None, endpoint_url=None, config=None):121 """122 Generic method to obtain an AWS service client using boto3, based on environment, region, or custom endpoint_url.123 """124 env = get_environment(env, region_name=region_name)125 my_session = get_boto3_session()126 method = my_session.client if client else my_session.resource127 verify = True128 if not endpoint_url:129 if env.region == REGION_LOCAL:130 endpoint_url = get_local_service_url(service_name)131 verify = False132 region = env.region if env.region != REGION_LOCAL else get_local_region()133 return method(service_name, region_name=region, endpoint_url=endpoint_url, verify=verify, config=config)134class VelocityInput:135 """Simple class to mimick the behavior of variable '$input' in AWS API Gateway integration velocity templates.136 See: http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html"""137 def __init__(self, value):138 self.value = value139 def path(self, path):140 from jsonpath_rw import parse141 value = self.value if isinstance(self.value, dict) else json.loads(self.value)142 jsonpath_expr = parse(path)143 result = [match.value for match in jsonpath_expr.find(value)]144 result = result[0] if len(result) == 1 else result145 return result146 def json(self, path):147 return json.dumps(self.path(path))148class VelocityUtil:149 """Simple class to mimick the behavior of variable '$util' in AWS API Gateway integration velocity templates.150 See: http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html"""151 def base64Encode(self, s):152 if not isinstance(s, str):153 s = json.dumps(s)154 encoded_str = s.encode(config.DEFAULT_ENCODING)155 encoded_b64_str = base64.b64encode(encoded_str)156 return encoded_b64_str.decode(config.DEFAULT_ENCODING)157 def base64Decode(self, s):158 if not isinstance(s, str):159 s = json.dumps(s)160 return base64.b64decode(s)161def render_velocity_template(template, context, as_json=False):162 import airspeed163 t = airspeed.Template(template)164 variables = {165 'input': VelocityInput(context),166 'util': VelocityUtil()167 }168 replaced = t.merge(variables)169 if as_json:170 replaced = json.loads(replaced)171 return replaced172def check_valid_region(headers):173 """ Check whether a valid region is provided, and if not then raise an Exception. """174 auth_header = headers.get('Authorization')175 if not auth_header:176 raise Exception('Unable to find "Authorization" header in request')177 replaced = re.sub(r'.*Credential=([^,]+),.*', r'\1', auth_header)178 if auth_header == replaced:179 raise Exception('Unable to find "Credential" section in "Authorization" header')180 # Format is: <your-access-key-id>/<date>/<aws-region>/<aws-service>/aws4_request181 # See https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-auth-using-authorization-header.html182 parts = replaced.split('/')183 region = parts[2]184 if region not in config.VALID_REGIONS:185 raise Exception('Invalid region specified in "Authorization" header: "%s"' % region)186def get_s3_client():187 return boto3.resource('s3',188 endpoint_url=config.TEST_S3_URL,189 config=boto3.session.Config(190 s3={'addressing_style': 'path'}),191 verify=False)192def get_account_id(account_id=None, env=None):193 if account_id:194 return account_id195 env = get_environment(env)196 if env.region == REGION_LOCAL:197 return os.environ['TEST_AWS_ACCOUNT_ID']198 raise Exception('Unable to determine AWS account ID')199def role_arn(role_name, account_id=None, env=None):200 if not role_name:201 return role_name202 if role_name.startswith('arn:aws:iam::'):203 return role_name204 env = get_environment(env)205 account_id = get_account_id(account_id, env=env)206 return 'arn:aws:iam::%s:role/%s' % (account_id, role_name)207def iam_resource_arn(resource, role=None, env=None):208 env = get_environment(env)209 if not role:210 role = get_iam_role(resource, env=env)211 return role_arn(role_name=role, account_id=get_account_id())212def get_iam_role(resource, env=None):213 env = get_environment(env)214 return 'role-%s' % resource215def dynamodb_table_arn(table_name, account_id=None):216 account_id = get_account_id(account_id)217 return 'arn:aws:dynamodb:%s:%s:table/%s' % (get_local_region(), account_id, table_name)218def dynamodb_stream_arn(table_name, account_id=None):219 account_id = get_account_id(account_id)220 return ('arn:aws:dynamodb:%s:%s:table/%s/stream/%s' %221 (get_local_region(), account_id, table_name, timestamp()))222def lambda_function_arn(function_name, account_id=None):223 pattern = 'arn:aws:lambda:.*:.*:function:.*'224 if re.match(pattern, function_name):225 return function_name226 if ':' in function_name:227 raise Exception('Lambda function name should not contain a colon ":"')228 account_id = get_account_id(account_id)229 return pattern.replace('.*', '%s') % (get_local_region(), account_id, function_name)230def lambda_function_name(name_or_arn):231 if ':' not in name_or_arn:232 return name_or_arn233 parts = name_or_arn.split(':')234 # name is index #6 in pattern: arn:aws:lambda:.*:.*:function:.*235 return parts[6]236def state_machine_arn(name, account_id=None):237 if ':' in name:238 return name239 account_id = get_account_id(account_id)240 pattern = 'arn:aws:states:%s:%s:stateMachine:%s'241 return pattern % (get_local_region(), account_id, name)242def fix_arn(arn):243 """ Function that attempts to "canonicalize" the given ARN. This includes converting244 resource names to ARNs, replacing incorrect regions, account IDs, etc. """245 if arn.startswith('arn:aws:lambda'):246 return lambda_function_arn(lambda_function_name(arn))247 LOG.warning('Unable to fix/canonicalize ARN: %s' % arn)248 return arn249def cognito_user_pool_arn(user_pool_id, account_id=None):250 account_id = get_account_id(account_id)251 return 'arn:aws:cognito-idp:%s:%s:userpool/%s' % (get_local_region(), account_id, user_pool_id)252def kinesis_stream_arn(stream_name, account_id=None):253 account_id = get_account_id(account_id)254 return 'arn:aws:kinesis:%s:%s:stream/%s' % (get_local_region(), account_id, stream_name)255def firehose_stream_arn(stream_name, account_id=None):256 account_id = get_account_id(account_id)257 return ('arn:aws:firehose:%s:%s:deliverystream/%s' % (get_local_region(), account_id, stream_name))258def s3_bucket_arn(bucket_name, account_id=None):259 return 'arn:aws:s3:::%s' % (bucket_name)260def sqs_queue_arn(queue_name, account_id=None):261 account_id = get_account_id(account_id)262 # ElasticMQ sets a static region of "elasticmq"263 return ('arn:aws:sqs:elasticmq:%s:%s' % (account_id, queue_name))264def sns_topic_arn(topic_name, account_id=None):265 account_id = get_account_id(account_id)266 return ('arn:aws:sns:%s:%s:%s' % (get_local_region(), account_id, topic_name))267def get_sqs_queue_url(queue_name):268 client = connect_to_service('sqs')269 response = client.get_queue_url(QueueName=queue_name)270 return response['QueueUrl']271def dynamodb_get_item_raw(request):272 headers = mock_aws_request_headers()273 headers['X-Amz-Target'] = 'DynamoDB_20120810.GetItem'274 new_item = make_http_request(url=config.TEST_DYNAMODB_URL,275 method='POST', data=json.dumps(request), headers=headers)276 new_item = json.loads(new_item.text)277 return new_item278def mock_aws_request_headers(service='dynamodb'):279 ctype = APPLICATION_AMZ_JSON_1_0280 if service == 'kinesis':...
test_rclv.py
Source:test_rclv.py
...54 lat0 = -6055 verts_proj_60S = rclv.project_vertices(verts, lon0, lat0, 0.1, 0.1)56 np.testing.assert_allclose(rclv.polygon_area(verts_proj_60S),57 area_equator_expected/2, rtol=0.01)58def test_get_local_region():59 # create some data60 n = 1061 x, y = np.meshgrid(np.arange(n), np.arange(n))62 (j,i), x_reg = rclv.get_local_region(x, (2,2), border_j=(2,2), border_i=(2,2))63 assert x_reg.shape == (5,5)64 assert x_reg[j,i] == 065 assert x_reg[j,0] == 266 assert x_reg[j,-1] == -267 with pytest.raises(ValueError) as ve:68 (j,i), x_reg = rclv.get_local_region(x, (2,2), border_j=(3,2), border_i=(2,2))69 with pytest.raises(ValueError) as ve:70 (j,i), x_reg = rclv.get_local_region(x, (2,2), border_j=(2,8), border_i=(2,2))71 with pytest.raises(ValueError) as ve:72 (j,i), x_reg = rclv.get_local_region(x, (2,2), border_j=(2,2), border_i=(3,2))73 with pytest.raises(ValueError) as ve:74 (j,i), x_reg = rclv.get_local_region(x, (2,2), border_j=(2,2), border_i=(2,8))75def test_get_local_region_periodic():76 # create some data77 n = 1078 x, y = np.meshgrid(np.arange(n), np.arange(n))79 # check behavior for periodic in the i direction80 periodic=(False, True)81 _, x_reg = rclv.get_local_region(x, (2, 1), periodic=periodic,82 border_j=(2, 2), border_i=(2, 2))83 assert x_reg.shape == (5, 5)84 assert x_reg[0, 0] == -885 _, x_reg = rclv.get_local_region(x, (2, 8), periodic=periodic,86 border_j=(2, 2), border_i=(2 ,2))87 assert x_reg.shape == (5, 5)88 assert x_reg[0, -1] == 889 # check behavior for periodic in the j direction90 periodic=(True, False)91 _, y_reg = rclv.get_local_region(y, (1, 2), periodic=periodic,92 border_j=(2, 2), border_i=(2,2 ))93 assert y_reg.shape == (5, 5)94 assert y_reg[0, 0] == -895 _, y_reg = rclv.get_local_region(y, (8, 2), periodic=periodic,96 border_j=(2, 2), border_i=(2, 2))97 assert y_reg.shape == (5, 5)98 assert y_reg[-1, 0] == 899 # check behavior for doubly periodic, all four corners100 periodic = (True, True)101 # lower left102 ji = (1, 1)103 _, y_reg = rclv.get_local_region(y, ji, periodic=periodic,104 border_j=(2, 2), border_i=(2, 2))105 _, x_reg = rclv.get_local_region(x, ji, periodic=periodic,106 border_j=(2, 2), border_i=(2, 2))107 assert x_reg.shape == (5, 5)108 assert x_reg[0, 0] == -8109 assert y_reg.shape == (5, 5)110 assert y_reg[0, 0] == -8111 # lower right112 ji = (1, 8)113 _, y_reg = rclv.get_local_region(y, ji, periodic=periodic,114 border_j=(2, 2), border_i=(2, 2))115 _, x_reg = rclv.get_local_region(x, ji, periodic=periodic,116 border_j=(2, 2), border_i=(2, 2))117 assert x_reg.shape == (5, 5)118 assert x_reg[0, -1] == 8119 assert y_reg.shape == (5, 5)120 assert y_reg[0, 0] == -8121 # upper left122 ji = (8, 1)123 _, y_reg = rclv.get_local_region(y, ji, periodic=periodic,124 border_j=(2, 2), border_i=(2, 2))125 _, x_reg = rclv.get_local_region(x, ji, periodic=periodic,126 border_j=(2, 2), border_i=(2, 2))127 assert x_reg.shape == (5, 5)128 assert x_reg[0, 0] == -8129 assert y_reg.shape == (5, 5)130 assert y_reg[-1, 0] == 8131 # upper right132 ji = (8, 8)133 _, y_reg = rclv.get_local_region(y, ji, periodic=periodic,134 border_j=(2, 2), border_i=(2, 2))135 _, x_reg = rclv.get_local_region(x, ji, periodic=periodic,136 border_j=(2, 2), border_i=(2, 2))137 assert x_reg.shape == (5, 5)138 assert x_reg[0, -1] == 8139 assert y_reg.shape == (5, 5)140 assert y_reg[-1, 0] == 8141def test_is_contour_closed(square_verts):142 assert rclv.is_contour_closed(square_verts)143 assert not rclv.is_contour_closed(square_verts[:-1])144def test_point_in_contour(square_verts):145 assert rclv.point_in_contour(square_verts, (0., 0.))146 assert not rclv.point_in_contour(square_verts, (1., 0.))147def test_contour_area(square_verts):148 region_area, hull_area, convex_def = rclv.contour_area(square_verts)149 assert region_area == 1.0...
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