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feat(cli): faster "no-op" deployments #6346

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merged 4 commits into from Feb 19, 2020
Merged

feat(cli): faster "no-op" deployments #6346

merged 4 commits into from Feb 19, 2020

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eladb
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@eladb eladb commented Feb 18, 2020

Bail-out before executing and creating change sets when the currently deployed template is identical to the one we are about to deploy.

This resolves #6046, where a stack that contains nested stack(s) will always try to update since CloudFormation assumes the nested template might have changed. In the CDK, since nested template URLs are immutable, we can trust that the URL will be changed, and therefore invalidate the parent template.

This also fixes the bug described in #2553, where a stack that includes a Transform always fail to deploy with No updates are to be performed when there are no changes to it.

The switch --force can be used to override this behavior.

Added unit test and performed a few manual tests to verify both bugs are resolved.

Resolves #6216


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

Bail-out before executing and creating change sets when the currently deployed template is identical to the one we are about to deploy.

This resolves #6046, where a stack that contains nested stack(s) will always try to update since CloudFormation assumes the nested template might have changed. In the CDK, since nested template URLs are immutable, we can trust that the URL will be changed, and therefore invalidate the *parent* template.

This also fixes the bug described in #2553, where a stack that includes a `Transform` always fail to deploy with `No updates are to be performed` when there are no changes to it.

The switch `--force` can be used to override this behavior.

Added unit test and performed a few manual tests to verify both bugs are resolved.

Resolves #6216
@eladb eladb requested a review from shivlaks February 18, 2020 17:22
@mergify mergify bot added the contribution/core This is a PR that came from AWS. label Feb 18, 2020
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  • CodeBuild project: AutoBuildProject6AEA49D1-qxepHUsryhcu
  • Commit ID: 50a585d
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@eladb eladb changed the title feat(cli): skip deployment if template did not change feat(cli): faster "no-op" deployments Feb 19, 2020
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really nice and super valuable functionality! - should we add an integ test for exercising the force flag (and for bailing out)

packages/aws-cdk/lib/api/deploy-stack.ts Show resolved Hide resolved
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eladb commented Feb 19, 2020

Let me look into an integ test. Good call.

@eladb eladb requested a review from shivlaks February 19, 2020 09:20
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eladb commented Feb 19, 2020

@shivlaks added an integration test!

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LGTM

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mergify bot commented Feb 19, 2020

Thank you for contributing! Your pull request is now being automatically merged.

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  • CodeBuild project: AutoBuildProject6AEA49D1-qxepHUsryhcu
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mergify bot commented Feb 19, 2020

Thank you for contributing! Your pull request is now being automatically merged.

@mergify mergify bot merged commit d4a132b into master Feb 19, 2020
@mergify mergify bot deleted the benisrae/skip-update branch February 19, 2020 11:38
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