| """ |
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. |
| SPDX-License-Identifier: MIT-0 |
| """ |
|
|
| from typing import Any |
|
|
| from cfnlint.jsonschema import ValidationError, Validator |
| from cfnlint.rules import CloudFormationLintRule |
|
|
|
|
| class DynamicReferenceSsmPath(CloudFormationLintRule): |
| id = "E1052" |
| shortdesc = "Validate dynamic references to SSM are in a valid location" |
| description = ( |
| "Dynamic references to SSM parameters are only supported " |
| "in certain locations" |
| ) |
| source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html#dynamic-references-ssm" |
| tags = ["functions", "dynamic reference"] |
|
|
| def validate(self, validator: Validator, s: Any, instance: Any, schema: Any): |
| if len(validator.context.path.path) > 0: |
| if validator.context.path.path[0] == "Parameters": |
| if len(validator.context.path.path) >= 3: |
| if validator.context.path.path[2] in ["Default", "AllowedValues"]: |
| return |
| elif validator.context.path.path[0] == "Resources": |
| if len(validator.context.path.path) >= 3: |
| if validator.context.path.path[2] in ["Properties", "Metadata"]: |
| return |
| elif validator.context.path.path[0] == "Outputs": |
| if len(validator.context.path.path) >= 3: |
| if validator.context.path.path[2] in ["Value"]: |
| return |
|
|
| yield ValidationError( |
| (f"Dynamic reference {instance!r} to SSM parameters are not allowed here"), |
| rule=self, |
| ) |
|
|
