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How to use _resolve_refs_recursively method in localstack

Best Python code snippet using localstack_python

template_deployer.py

Source:template_deployer.py

...408# in case we load stack exports that have circular dependencies (see issue 3438)409# TODO: Potentially think about a better approach in the future410@prevent_stack_overflow(match_parameters=True)411def resolve_refs_recursively(stack, value):412    result = _resolve_refs_recursively(stack, value)413    # localstack specific patches414    if isinstance(result, str):415        # we're trying to filter constructed API urls here (e.g. via Join in the template)416        api_match = REGEX_OUTPUT_APIGATEWAY.match(result)417        if api_match:418            prefix = api_match[1]419            host = api_match[2]420            path = api_match[3]421            port = config.service_port("apigateway")422            return f"{prefix}{host}:{port}/{path}"423        # basic dynamic reference support424        # see: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html425        # technically there are more restrictions for each of these services but checking each of these426        # isn't really necessary for the current level of emulation427        dynamic_ref_match = REGEX_DYNAMIC_REF.match(result)428        if dynamic_ref_match:429            service_name = dynamic_ref_match[1]430            reference_key = dynamic_ref_match[2]431            # only these 3 services are supported for dynamic references right now432            if service_name == "ssm":433                ssm_client = aws_stack.connect_to_service("ssm")434                return ssm_client.get_parameter(Name=reference_key)["Parameter"]["Value"]435            elif service_name == "ssm-secure":436                ssm_client = aws_stack.connect_to_service("ssm")437                return ssm_client.get_parameter(Name=reference_key, WithDecryption=True)[438                    "Parameter"439                ]["Value"]440            elif service_name == "secretsmanager":441                # reference key needs to be parsed further442                # because {{resolve:secretsmanager:secret-id:secret-string:json-key:version-stage:version-id}}443                # we match for "secret-id:secret-string:json-key:version-stage:version-id"444                # where445                #   secret-id can either be the secret name or the full ARN of the secret446                #   secret-string *must* be SecretString447                #   all other values are optional448                secret_id = reference_key449                [json_key, version_stage, version_id] = [None, None, None]450                if "SecretString" in reference_key:451                    parts = reference_key.split(":SecretString:")452                    secret_id = parts[0]453                    [json_key, version_stage, version_id] = parts[1].split(":")454                kwargs = {}  # optional args for get_secret_value455                if version_id:456                    kwargs["VersionId"] = version_id457                if version_stage:458                    kwargs["VersionStage"] = version_stage459                secretsmanager_client = aws_stack.connect_to_service("secretsmanager")460                secret_value = secretsmanager_client.get_secret_value(SecretId=secret_id, **kwargs)[461                    "SecretString"462                ]463                if json_key:464                    return json.loads(secret_value)[json_key]465                else:466                    return secret_value467            else:468                LOG.warning(f"Unsupported service for dynamic parameter: {service_name=}")469    return result470@prevent_stack_overflow(match_parameters=True)471# TODO: move Stack model into separate file and add type hints here472def _resolve_refs_recursively(stack, value):473    if isinstance(value, dict):474        keys_list = list(value.keys())475        stripped_fn_lower = keys_list[0].lower().split("::")[-1] if len(keys_list) == 1 else None476        # process special operators477        if keys_list == ["Ref"]:478            ref = resolve_ref(stack, value["Ref"], attribute="Ref")479            if ref is None:480                resources = stack.resources481                msg = 'Unable to resolve Ref for resource "%s" (yet)' % value["Ref"]482                LOG.debug("%s - %s", msg, resources.get(value["Ref"]) or set(resources.keys()))483                raise DependencyNotYetSatisfied(resource_ids=value["Ref"], message=msg)484            ref = resolve_refs_recursively(stack, ref)485            return ref486        if stripped_fn_lower == "getatt":...

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