""" Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: MIT-0 """ from cfnlint.rules import CloudFormationLintRule, RuleMatch class DependsOn(CloudFormationLintRule): """Check Base Resource Configuration""" id = "E3005" shortdesc = "Check DependsOn values for Resources" description = "Check that the DependsOn values are valid" source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-dependson.html" tags = ["resources", "dependson"] def check_value(self, key, path, resources, cfn): """Check resource names for DependsOn""" matches = [] if not isinstance(key, (str)): message = "DependsOn values should be of string at {0}" matches.append(RuleMatch(path, message.format("/".join(map(str, path))))) return matches if key not in resources: message = "DependsOn should reference other resources at {0}" matches.append(RuleMatch(path, message.format("/".join(map(str, path))))) else: for scenario in cfn.is_resource_available(path, key): if scenario: scenario_text = " and ".join( [ f'when condition "{k}" is {scenario[k]}' for k in sorted(scenario) ] ) message = "DependsOn {0} may not exist when condition {1} at {2}" matches.append( RuleMatch( path, message.format( key, scenario_text, "/".join(map(str, path)) ), ) ) return matches def match(self, cfn): matches = [] resources = cfn.get_resources() for resource_name, resource_values in resources.items(): depends_ons = resource_values.get("DependsOn") if depends_ons: path = ["Resources", resource_name, "DependsOn"] self.logger.debug( "Validating DependsOn for %s base configuration", resource_name ) if isinstance(depends_ons, list): for index, depends_on in enumerate(depends_ons): matches.extend( self.check_value( depends_on, path[:] + [index], resources, cfn ) ) else: matches.extend(self.check_value(depends_ons, path, resources, cfn)) return matches
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certificatemanager | Folder | 0755 |
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cloudformation | Folder | 0755 |
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cloudfront | Folder | 0755 |
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codepipeline | Folder | 0755 |
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iam | Folder | 0755 |
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lmbd | Folder | 0755 |
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properties | Folder | 0755 |
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rds | Folder | 0755 |
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stepfunctions | Folder | 0755 |
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updatepolicy | Folder | 0755 |
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ApproachingLimitName.py | File | 686 B | 0644 |
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ApproachingLimitNumber.py | File | 690 B | 0644 |
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BothUpdateReplacePolicyDeletionPolicyNeeded.py | File | 1.74 KB | 0644 |
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CircularDependency.py | File | 1.18 KB | 0644 |
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Configuration.py | File | 6.97 KB | 0644 |
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DeletionPolicy.py | File | 3.91 KB | 0644 |
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DependsOn.py | File | 2.7 KB | 0644 |
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DependsOnObsolete.py | File | 3.01 KB | 0644 |
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HardCodedArnProperties.py | File | 4.71 KB | 0644 |
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LimitName.py | File | 704 B | 0644 |
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LimitNumber.py | File | 692 B | 0644 |
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Modules.py | File | 2.8 KB | 0644 |
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Name.py | File | 688 B | 0644 |
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NoEcho.py | File | 3.2 KB | 0644 |
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PreviousGenerationInstanceType.py | File | 4.2 KB | 0644 |
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ResourceSchema.py | File | 1.74 KB | 0644 |
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RetentionPeriodOnResourceTypesWithAutoExpiringContent.py | File | 6.42 KB | 0644 |
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ServerlessTransform.py | File | 1.59 KB | 0644 |
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UniqueNames.py | File | 924 B | 0644 |
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UpdateReplacePolicy.py | File | 4.07 KB | 0644 |
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UpdateReplacePolicyDeletionPolicyOnStatefulResourceTypes.py | File | 2.09 KB | 0644 |
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__init__.py | File | 106 B | 0644 |
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