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fix(aws-ecs): handle long ARN formats for services #2176

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merged 5 commits into from
Apr 5, 2019

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@SoManyHs SoManyHs commented Apr 4, 2019

Due to a bug in Cloudformation, Fn::GetAtt for service name on an ECS
service was returning the cluster name instead of the service name. This
was causing the ResourceId on
AWS::ApplicationAutoScaling::ScalableTarget to be set incorrectly.

This change forces the customer to specify whether they have opted into
the long ARN format for services (which can be achieved through the following command:
aws ecs put-account-setting-default --name serviceLongArnFormat --value enabled). The CDK cannot currently detect if the customer has the these
settings enabled so there could be a potential conflict on deployment.

Fixes #1849.


Pull Request Checklist

  • Testing
    • Unit test added (prefer not to modify an existing test, otherwise, it's probably a breaking change)
    • CLI change?: coordinate update of integration tests with team
    • cdk-init template change?: coordinated update of integration tests with team
  • Docs
    • jsdocs: All public APIs documented
    • README: README and/or documentation topic updated
  • Title and Description
    • Change type: title prefixed with fix, feat will appear in changelog
    • Title: use lower-case and doesn't end with a period
    • Breaking?: last paragraph: "BREAKING CHANGE: <describe what changed + link for details>"
    • Issues: Indicate issues fixed via: "Fixes #xxx" or "Closes #xxx"
  • Sensitive Modules (requires 2 PR approvers)
    • IAM Policy Document (in @aws-cdk/aws-iam)
    • EC2 Security Groups and ACLs (in @aws-cdk/aws-ec2)
    • Grant APIs (only if not based on official documentation with a reference)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license.

@SoManyHs SoManyHs requested a review from a team as a code owner April 4, 2019 01:29
Due to a bug in Cloudformation, Fn::GetAtt for service name on an ECS
service was returning the cluster name instead of the service name. This
was causing the ResourceId on
AWS::ApplicationAutoScaling::ScalableTarget to be set incorrectly.

This change forces the customer to specify whether they have opted into
the long ARN format for services (which can be achieved through the following command:
`aws ecs put-account-setting-default --name serviceLongArnFormat --value
enabled`). The CDK cannot currently detect if the customer has the these
settings enabled so there could be a potential conflict on deployment.

Fixes aws#1849.
@rix0rrr rix0rrr merged commit 66df1c8 into aws:master Apr 5, 2019
@rix0rrr rix0rrr deleted the fix-autoscaling branch April 5, 2019 14:34
eladb pushed a commit that referenced this pull request Jul 3, 2019
Remove the temporary workaround implemented to allow long arns support: #2176

Removing the temporary workaround does not break anything for my account which has long arns enabled.
Kaixiang-AWS pushed a commit to Kaixiang-AWS/aws-cdk that referenced this pull request Jul 3, 2019
Remove the temporary workaround implemented to allow long arns support: aws#2176

Removing the temporary workaround does not break anything for my account which has long arns enabled.
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Autoscaling for Fargate services does not support new ECS ARN format
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