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fix(ecr): autoDeleteImages fails when repository is renamed #26742

Merged
merged 6 commits into from
Aug 17, 2023
Merged

fix(ecr): autoDeleteImages fails when repository is renamed #26742

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f0f912f
fix: change resources for the role
go-to-k Aug 13, 2023
e344391
test: change integ snapshots
go-to-k Aug 13, 2023
ae6cffa
test: change integ tests
go-to-k Aug 14, 2023
21db9b8
chore: use tag-based access control
go-to-k Aug 15, 2023
22b20c9
Merge branch 'main' into fix/ecr-auto-delete-images-role
rix0rrr Aug 17, 2023
596ae0c
Merge branch 'main' into fix/ecr-auto-delete-images-role
mergify[bot] Aug 17, 2023
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4 changes: 2 additions & 2 deletions ...-ecr/test/integ.repository-auto-delete-images.js.snapshot/aws-ecr-integ-stack.assets.json
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Expand Up @@ -14,15 +14,15 @@
}
}
},
"32b456cdb8ff646c98c4580ff6d88bd51e84e33af74af927bb882158a53a0d21": {
"adb4722adf5406a51ec51892647c61e7ac61ba38b845cd1163397018822e542e": {
"source": {
"path": "aws-ecr-integ-stack.template.json",
"packaging": "file"
},
"destinations": {
"current_account-current_region": {
"bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
"objectKey": "32b456cdb8ff646c98c4580ff6d88bd51e84e33af74af927bb882158a53a0d21.json",
"objectKey": "adb4722adf5406a51ec51892647c61e7ac61ba38b845cd1163397018822e542e.json",
"assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
}
}
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27 changes: 23 additions & 4 deletions ...cr/test/integ.repository-auto-delete-images.js.snapshot/aws-ecr-integ-stack.template.json
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Expand Up @@ -69,12 +69,31 @@
],
"Resource": [
{
"Fn::GetAtt": [
"Repo02AC86CF",
"Arn"
"Fn::Join": [
"",
[
"arn:",
{
"Ref": "AWS::Partition"
},
":ecr:",
{
"Ref": "AWS::Region"
},
":",
{
"Ref": "AWS::AccountId"
},
":repository/*"
]
]
}
]
],
"Condition": {
"StringEquals": {
"ecr:ResourceTag/aws-cdk:auto-delete-images": "true"
}
}
}
]
}
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2 changes: 1 addition & 1 deletion ...ork-integ/test/aws-ecr/test/integ.repository-auto-delete-images.js.snapshot/manifest.json
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Expand Up @@ -17,7 +17,7 @@
"validateOnSynth": false,
"assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-deploy-role-${AWS::AccountId}-${AWS::Region}",
"cloudFormationExecutionRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-cfn-exec-role-${AWS::AccountId}-${AWS::Region}",
"stackTemplateAssetObjectUrl": "s3://cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}/32b456cdb8ff646c98c4580ff6d88bd51e84e33af74af927bb882158a53a0d21.json",
"stackTemplateAssetObjectUrl": "s3://cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}/adb4722adf5406a51ec51892647c61e7ac61ba38b845cd1163397018822e542e.json",
"requiresBootstrapStackVersion": 6,
"bootstrapStackVersionSsmParameter": "/cdk-bootstrap/hnb659fds/version",
"additionalDependencies": [
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64 changes: 32 additions & 32 deletions ...amework-integ/test/aws-ecr/test/integ.repository-auto-delete-images.js.snapshot/tree.json
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Expand Up @@ -28,8 +28,8 @@
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.aws_ecr.CfnRepository",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"AutoDeleteImagesCustomResource": {
Expand All @@ -40,20 +40,20 @@
"id": "Default",
"path": "aws-ecr-integ-stack/Repo/AutoDeleteImagesCustomResource/Default",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnResource",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.CustomResource",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.aws_ecr.Repository",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"Custom::ECRAutoDeleteImagesCustomResourceProvider": {
Expand All @@ -64,60 +64,60 @@
"id": "Staging",
"path": "aws-ecr-integ-stack/Custom::ECRAutoDeleteImagesCustomResourceProvider/Staging",
"constructInfo": {
"fqn": "aws-cdk-lib.AssetStaging",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"Role": {
"id": "Role",
"path": "aws-ecr-integ-stack/Custom::ECRAutoDeleteImagesCustomResourceProvider/Role",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnResource",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"Handler": {
"id": "Handler",
"path": "aws-ecr-integ-stack/Custom::ECRAutoDeleteImagesCustomResourceProvider/Handler",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnResource",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.CustomResourceProvider",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"RepositoryURI": {
"id": "RepositoryURI",
"path": "aws-ecr-integ-stack/RepositoryURI",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnOutput",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"BootstrapVersion": {
"id": "BootstrapVersion",
"path": "aws-ecr-integ-stack/BootstrapVersion",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnParameter",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"CheckBootstrapVersion": {
"id": "CheckBootstrapVersion",
"path": "aws-ecr-integ-stack/CheckBootstrapVersion",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnRule",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.Stack",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"cdk-integ-auto-delete-images": {
Expand All @@ -144,22 +144,22 @@
"id": "BootstrapVersion",
"path": "cdk-integ-auto-delete-images/DefaultTest/DeployAssert/BootstrapVersion",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnParameter",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
},
"CheckBootstrapVersion": {
"id": "CheckBootstrapVersion",
"path": "cdk-integ-auto-delete-images/DefaultTest/DeployAssert/CheckBootstrapVersion",
"constructInfo": {
"fqn": "aws-cdk-lib.CfnRule",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.Stack",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
},
Expand All @@ -184,8 +184,8 @@
}
},
"constructInfo": {
"fqn": "aws-cdk-lib.App",
"version": "0.0.0"
"fqn": "constructs.Construct",
"version": "10.2.69"
}
}
}
33 changes: 23 additions & 10 deletions ...ault-resources.js.snapshot/StagingStack-default-resourcesmax-ACCOUNT-REGION.template.json
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Expand Up @@ -636,18 +636,31 @@
],
"Resource": [
{
"Fn::GetAtt": [
"defaultresourcesmaxecrasset13112F7F9",
"Arn"
]
},
{
"Fn::GetAtt": [
"defaultresourcesmaxecrasset2904B88A7",
"Arn"
"Fn::Join": [
"",
[
"arn:",
{
"Ref": "AWS::Partition"
},
":ecr:",
{
"Ref": "AWS::Region"
},
":",
{
"Ref": "AWS::AccountId"
},
":repository/*"
]
]
}
]
],
"Condition": {
"StringEquals": {
"ecr:ResourceTag/aws-cdk:auto-delete-images": "true"
}
}
}
]
}
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15 changes: 7 additions & 8 deletions packages/aws-cdk-lib/aws-ecr/lib/repository.ts
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Expand Up @@ -20,11 +20,11 @@ import {
CustomResource,
CustomResourceProvider,
CustomResourceProviderRuntime,
Aws,
} from '../../core';

const AUTO_DELETE_IMAGES_RESOURCE_TYPE = 'Custom::ECRAutoDeleteImages';
const AUTO_DELETE_IMAGES_TAG = 'aws-cdk:auto-delete-images';
const REPO_ARN_SYMBOL = Symbol.for('@aws-cdk/aws-ecr.RepoArns');

/**
* Represents an ECR repository.
Expand Down Expand Up @@ -867,12 +867,8 @@ export class Repository extends RepositoryBase {
});

if (firstTime) {
const repoArns = [this._resource.attrArn];
(provider as any)[REPO_ARN_SYMBOL] = repoArns;

// Use a iam policy to allow the custom resource to list & delete
// images in the repository and the ability to get all repositories to find the arn needed on delete.
// We lazily produce a list of repositories associated with this custom resource provider.
provider.addToRolePolicy({
Effect: 'Allow',
Action: [
Expand All @@ -881,10 +877,13 @@ export class Repository extends RepositoryBase {
'ecr:ListImages',
'ecr:ListTagsForResource',
],
Resource: Lazy.list({ produce: () => repoArns }),
Resource: [`arn:${Aws.PARTITION}:ecr:${Stack.of(this).region}:${Stack.of(this).account}:repository/*`],
Condition: {
StringEquals: {
['ecr:ResourceTag/' + AUTO_DELETE_IMAGES_TAG]: 'true',
},
},
Comment on lines +881 to +885
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@rix0rrr

I implemented tag-based access control with a Condition for now.

});
} else {
(provider as any)[REPO_ARN_SYMBOL].push(this._resource.attrArn);
}
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@go-to-k go-to-k Aug 14, 2023 •
edited
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@rix0rrr

The repositoryName was Token. So following codes didn't work.

    const role = iam.Role.fromRoleArn(this, `${this.repositoryName}Role`, provider.roleArn);

    // Use a iam policy to allow the custom resource to list & delete
    // images in the repository and the ability to get all repositories to find the arn needed on delete.
    new iam.Policy(this, `${this.repositoryName}Policy`, {
      roles: [role],
      statements: [
        new iam.PolicyStatement({
          effect: iam.Effect.ALLOW,
          actions: [
            'ecr:BatchDeleteImage',
            'ecr:DescribeRepositories',
            'ecr:ListImages',
            'ecr:ListTagsForResource',
          ],
          resources: [this._resource.attrArn],
        }),
      ],
    });

If, because of the token-ness and unpredictability of this.repositoryName, this cannot work, a good compromise may be to put a tag on the ECR repository (cdk:allow-deleting-images=true; in fact there should already be a tag on there) and use tag-based access control with a Condition.

In that case, is this the way to go?

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@go-to-k go-to-k Aug 15, 2023 •
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@rix0rrr

I used physicalName instead of repositoryName and it worked. Because this.repositoryName is a Token (lazy value), but physicalName is props.repositoryName.

However, props.repositoryName may be unspecified, in which case the props.repositoryName will be undefined and the IAM policy's logical IDs will duplicate. So this is not a good practice.

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I agree, you can't use physicalName in this case. We should probably go the tag route then, a naked * is too dangerous for my tastes.


const customResource = new CustomResource(this, 'AutoDeleteImagesCustomResource', {
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24 changes: 14 additions & 10 deletions packages/aws-cdk-lib/aws-ecr/test/repository.test.ts
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Expand Up @@ -1006,18 +1006,22 @@ describe('repository', () => {
],
Resource: [
{
'Fn::GetAtt': [
'Repo1DBD717D9',
'Arn',
],
},
{
'Fn::GetAtt': [
'Repo2730A8200',
'Arn',
],
'Fn::Join': ['', [
'arn:',
{ Ref: 'AWS::Partition' },
':ecr:',
{ Ref: 'AWS::Region' },
':',
{ Ref: 'AWS::AccountId' },
':repository/*',
]],
},
],
Condition: {
StringEquals: {
'ecr:ResourceTag/aws-cdk:auto-delete-images': 'true',
},
},
},
],
},
Expand Down