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How to use create_change_set method in localstack

Best Python code snippet using localstack_python

main.py

Source:main.py

...92                "An error occurred when updating %s, %s", self.stack_name, error93            )94            raise Exception(error)95        return "stack_update_complete"96    def create_change_set(self):97        try:98            client.create_change_set(**self.parameters)99        except botocore.exceptions.ClientError as error:100            logger.error(101                "An error occurred when creating %s, %s",102                self.parameters["ChangeSetName"],103                error,104            )105            raise Exception(error)106        return "change_set_create_complete"107    def delete_change_set(self):108        client.delete_change_set(**self.parameters)109    def execute_change_set(self):110        try:111            client.execute_change_set(**self.parameters)112        except client.exceptions.ChangeSetNotFoundException as error:113            logger.error(114                "Change set %s was not found", self.parameters["ChangeSetName"]115            )116            raise Exception(error)117        return "stack_update_complete"118    def wait(self, waiter_name):119        logger.info("waiting for operation %s to complete", waiter_name)120        waiter = client.get_waiter(waiter_name)121        try:122            # TODO: Fix this, it should use the paremeters provided by the build_cloudformation_parameters123            parameters = {"StackName": self.stack_name}124            if "change_set" in waiter_name:125                parameters["ChangeSetName"] = f"{self.stack_name}-{self.commit}"126            waiter.wait(**parameters)127            logger.info(f"operation {operation} finished!")128        except botocore.exceptions.WaiterError as error:129            logger.error(130                "An error happened waiting for the operation %s, %s", operation, error131            )132            raise Exception(error)133    def generate_parameters(self):134        logger.info("generating parameters")135        for file in os.listdir(self.stack_parameters_path):136            if self.environment in file:137                parameters_file = os.path.join(self.stack_parameters_path, file)138                if "enc" in file:139                    subprocess.run(140                        [141                            "sops",142                            "-d",143                            parameters_file,144                            ">",145                            self.stack_tmp_parameters_file,146                        ],147                        stdout=subprocess.DEVNULL,148                    )149                else:150                    logger.debug("copying file")151                    shutil.copyfile(parameters_file, self.stack_tmp_parameters_file)152                break153    def clean(self):154        logger.info("Cleaning up the parameters")155        subprocess.run(["rm", self.stack_tmp_parameters_file])156# TODO: Support decrypt of the parameters file157# def generate_parameters(parameters_path):158def usage(info, err):159    help = """160main script helps with the creation of CloudFormation stacks.161Usage:162python main stack-name <command>163Commands to work with Stacks:164create              - Creates a new stack based on the environment and the stack name165update              - Updates an already created stack166delete              - Deletes an already created stack167Commands to work with Change Sets:168create_change_set   - Creates a new change set using the stack name and the commit's SHA as change set name169execute_change_set  - Executes the current change set170delete_change_set   - Delete the current change set171The stack-name is the name of the stack's folder inside stacks/172E.g.173python main network create174    """175    print(info)176    print(help)177    sys.exit(err)178def args_validator():179    if len(sys.argv) != 3:180        usage("Invalid number of arguments", errno.EINVAL)181    if sys.argv[2] not in OPERATIONS:182        usage(f"{sys.argv[2]} is not permitted", errno.EPERM)183    stack_path = os.path.join("stacks", sys.argv[1])184    if not os.path.exists(stack_path):185        usage(f"{stack_path} does not exist", errno.EPERM)186    try:187        os.environ["PROJECT"]188        os.environt["ENVIRONMENT"]189    except:190        logger.warning(191            "PROJECT or ENVIRONMENT are not set, falling back to default values"192        )193# Run validation before creating194args_validator()195operation = sys.argv[2]196stack = Stack(sys.argv[1], sys.argv[2])197stack.validate_cloudformation_template()198try:199    if operation == "create":200        waiter_name = stack.create_stack()201    elif operation == "delete":202        waiter_name = stack.delete_stack()203    elif operation == "update":204        waiter_name = stack.update_stack()205    elif operation == "create_change_set":206        waiter_name = stack.create_change_set()207    elif operation == "delete_change_set":208        waiter_name = stack.delete_change_set()209        sys.exit(0)210    elif operation == "execute_change_set":211        waiter_name = stack.execute_change_set()212    else:213        usage(1)214    stack.wait(waiter_name)215except Exception as error:216    logger.error(error)217finally:...

deploy.py

Source:deploy.py

...36        client.mock('describe_stacks', describe_stacks)37        exists = _stack_exists(client, 'foo')38        self.assertEqual(client.called['describe_stacks'], 1)39        self.assertEqual(exists, False)40    def test_make_create_change_set(self):41        '''create a changeset42        '''43        stack_name = 'foo'44        client = cfn.Cloudformation()45        describe_stacks = cfn.make_describe_stacks(client, 3, 'CREATE_COMPLETE', 'bar')46        client.mock('describe_stacks', describe_stacks)47        def create_change_set(StackName, TemplateURL, UsePreviousTemplate, Parameters, Capabilities, ChangeSetName, ChangeSetType):48            self.assertEqual(ChangeSetType, 'CREATE')49            return {50                'Id': 'string',51                'StackId': 'string'52            }53        client.mock('create_change_set', create_change_set)54        _make_change_set(client, stack_name, '', {})55        self.assertEqual(client.called['create_change_set'], 1)56    def test_make_update_change_set(self):57        '''update a stack with changeset58        '''59        stack_name = 'foo'60        client = cfn.Cloudformation()61        describe_stacks = cfn.make_describe_stacks(client, 3, 'CREATE_COMPLETE')62        client.mock('describe_stacks', describe_stacks)63        def create_change_set(StackName, TemplateURL, UsePreviousTemplate, Parameters, Capabilities, ChangeSetName, ChangeSetType):64            self.assertEqual(ChangeSetType, 'UPDATE')65            return {66                'Id': 'string',67                'StackId': 'string'68            }69        client.mock('create_change_set', create_change_set)70        _make_change_set(client, stack_name, '', {})71        self.assertEqual(client.called['create_change_set'], 1)72    def test_wait_for_changeset(self):73        '''pause execution until the changeset creation is complete74        '''75        n_calls = 376        client = cfn.Cloudformation()77        describe_change_set = cfn.make_describe_change_set(client, n_calls, 'CREATE_COMPLETE')...

test_deploy.py

Source:test_deploy.py

1from unittest import TestCase2import pytest3import os4from mock import MagicMock5from stacker import deploy6class DeployExecutorTest(TestCase):7    cf_json = os.path.join(os.path.dirname(__file__),'resources/cloudformation.json')8    cf_yaml_functions = os.path.join(os.path.dirname(__file__), 'resources/cf_functions.yaml')9    cf_json_functions = os.path.join(os.path.dirname(__file__), 'resources/cf_functions.json')10    config_json = os.path.join(os.path.dirname(__file__), 'resources/config.json')11    def test_error_thrown_on_incorrect_config_file_format(self):12        with pytest.raises(deploy.DeployException):13            executor = deploy.DeployExecutor()14            executor.load_parameters("config.txt")15    def test_load_json_cloudformation(self):16        executor = deploy.DeployExecutor()17        executor.load_cloudformation(self.cf_json)18    def test_deploy_with_no_config_file(self):19        executor = deploy.DeployExecutor()20        executor.cf_client = MagicMock()21        executor.cf_client.create_change_set = MagicMock()22        executor.cf_client.wait_for_change_set_to_complete = MagicMock()23        executor.execute(stack_name="test-stack",template_name=self.cf_json)24    def test_deploy_with_json_config(self):25        executor = deploy.DeployExecutor()26        executor.cf_client = MagicMock()27        executor.cf_client.create_change_set = MagicMock()28        executor.cf_client.wait_for_change_set_to_complete = MagicMock()29        executor.execute(stack_name="test-stack",template_name=self.cf_json, config_filename=self.config_json, create=True)30        executor.cf_client.create_change_set.assert_called()31        executor.cf_client.wait_for_change_set_to_complete.assert_called()32    # Tests that we can parse yaml containing Cloudformation functions33    def test_deploy_yaml_cf_with_functions(self):34        executor = deploy.DeployExecutor()35        executor.cf_client = MagicMock()36        executor.cf_client.create_change_set = MagicMock()37        executor.cf_client.wait_for_change_set_to_complete = MagicMock()38        executor.execute(stack_name="test-stack", template_name=self.cf_yaml_functions, config_filename=self.config_json, create=True)39        executor.cf_client.create_change_set.assert_called()40        executor.cf_client.wait_for_change_set_to_complete.assert_called()41    # Tests that we can parse json containing Cloudformation functions42    def test_deploy_json_cf_with_functions(self):43        executor = deploy.DeployExecutor()44        executor.cf_client = MagicMock()45        executor.cf_client.create_change_set = MagicMock()46        executor.cf_client.wait_for_change_set_to_complete = MagicMock()47        executor.execute(stack_name="test-stack",template_name=self.cf_json_functions, config_filename=self.config_json, create=True)48        executor.cf_client.create_change_set.assert_called()...

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