def update()

in critter/stack.py [0:0]

• 31 lines of code
• 5 McCabe index (conditional complexity)

    def update(self):
        logger.warning(
            f"Warning - Updating existing CloudFormation stack '{self.stack_name}'. Testing using existing stacks may "
            "result in unreliable test results. It is recommended to deploy a new stack for each test iteration."
        )
        if not self.trigger_rule_evaluation:
            logger.warning(
                "Warning - Updating an existing CloudFormation stack without specifying "
                f"'{self.TRIGGER_RULE_EVALUATION_ARG}' may result in the Config rule evaluation never occurring."
            )
        try:
            self.cfn.update_stack(
                StackName=self.stack_name,
                TemplateBody=self.template_body,
                DisableRollback=True,
                Capabilities=self.cfn_capabilities,
                Tags=self.stack_tags,
            )

            logger.info(f"Waiting for CloudFormation stack '{self.stack_name}' update to complete")
            self.cfn.get_waiter("stack_update_complete").wait(
                StackName=self.stack_name, WaiterConfig=self.CFN_WAITER_CONFIG
            )
            self.deploy_action_performed = "UPDATE"
        except botocore.exceptions.ClientError as e:
            if "No updates are to be performed" in e.response["Error"]["Message"]:
                logger.info(f"No updates are to be performed on CloudFormation stack '{self.stack_name}'")
            elif e.response["Error"]["Code"] == "InsufficientCapabilitiesException":
                logger.error("Error - Specify required CloudFormation capabilities with '--capabilities CAPABILITY'")
                raise e
            else:
                raise e