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fix(rds): add the dependency on proxy targets to ensure dbInstance #12237
fix(rds): add the dependency on proxy targets to ensure dbInstance #12237
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Looks nice @saudkhanzada ! A few comments before I merge this in.
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Awesome, thanks so much for the contribution @saudkhanzada !
Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork). |
Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork). |
#28471) ### Description The related issue reports that deployment fails due to circular dependencies when multiple RDSProxy are created. The `DatabaseProxy` uses the `node.addDependency` method to ensure that the `CfnDBProxyTargetGroup` is created after the `DBCluster` and `DBInstance` are created (#12237). This works well for a single `DatabaseProxy`, but does not work well when multiple `DatabaseProxy` are created with `DatabaseCluster.addProxy`. When creating a `DatabaseProxy` with the `DatabaseCluster.addProxy` method, it is created as a child of the `DatabaseCluster`. https://github.com/aws/aws-cdk/blob/cd54c4239ec29182e30fd91634505df560d6e5f8/packages/aws-cdk-lib/aws-rds/lib/cluster.ts#L446 The `node.addDependency` method recursively sets dependencies on child Constructs, so if multiple `DatabaseProxy` are created as a child of a `DatabaseCluster` in the construct tree, multiple `DatabaseProxy` dependencies on each other. If the `addProxy` method is not used, the user initializes the `DatabaseProxy` directly and it does not become a child of `DatabaseCluster`. For example, ```ts new DatabaseProxy(stack, 'DBProxy', { proxyTarget: rds.ProxyTarget.fromCluster(cluster), vpc, }); ``` I believe this is the cause of the `these resources have a dependency cycle` error reported in the related issue. To correct this error, this PR uses `CfnResource.addDependency` instead of `node.addDependency` to avoid recurrent dependencies. Closes #25633 ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*
aws#28471) ### Description The related issue reports that deployment fails due to circular dependencies when multiple RDSProxy are created. The `DatabaseProxy` uses the `node.addDependency` method to ensure that the `CfnDBProxyTargetGroup` is created after the `DBCluster` and `DBInstance` are created (aws#12237). This works well for a single `DatabaseProxy`, but does not work well when multiple `DatabaseProxy` are created with `DatabaseCluster.addProxy`. When creating a `DatabaseProxy` with the `DatabaseCluster.addProxy` method, it is created as a child of the `DatabaseCluster`. https://github.com/aws/aws-cdk/blob/cd54c4239ec29182e30fd91634505df560d6e5f8/packages/aws-cdk-lib/aws-rds/lib/cluster.ts#L446 The `node.addDependency` method recursively sets dependencies on child Constructs, so if multiple `DatabaseProxy` are created as a child of a `DatabaseCluster` in the construct tree, multiple `DatabaseProxy` dependencies on each other. If the `addProxy` method is not used, the user initializes the `DatabaseProxy` directly and it does not become a child of `DatabaseCluster`. For example, ```ts new DatabaseProxy(stack, 'DBProxy', { proxyTarget: rds.ProxyTarget.fromCluster(cluster), vpc, }); ``` I believe this is the cause of the `these resources have a dependency cycle` error reported in the related issue. To correct this error, this PR uses `CfnResource.addDependency` instead of `node.addDependency` to avoid recurrent dependencies. Closes aws#25633 ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*
availability while creating the proxy
Fixes: #11311
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license