使 cdk diff 忽略堆栈

Question

I have 2 cdk stacks that I have created that I use to deploy my lambda function. One of the stacks is the CodePipeline stack that gets triggered by Github commits, builds tests and deploys by using the "CloudFormationDeployAction" in CodeDeploy. Because I'm deploying my lambda through CodePipelines, I don't want it to be deployed through the terminal.

But on the terminal when I execute "cdk diff" or "cdk deploy *" for the rest of my stack, cdk will try diff both the stacks and output potential changes with the Lambda stack, even though it's deployed already. And doing a "cdk deploy *" will make cdk try to deploy and fail (due to missing parameters that is supplied through CodePipelines).

Is there a way to make the terminal commands ignore this LambdaStack?

Answer 1

A way I use to achieve a similar result is by doing the following:

1. In package.json I added under scripts "cdk-diff": "tsc && cdk diff YourStackYouWantToDiff"
2. I run npm run cdk-diff

This will only execute the cdk diff on the stacks you specify, here being YourStackYouWantToDiff.

In case of declared dependencies between stacks such as aStack.addDependency(bStack) , the cdk diff is executed on both aStack and bStack.