mmuller88/autobrancherdaily

CDK Construct for checking new cdk releases daily and create a PR if there is a new one

Autobrancher Daily

This CDK App create PRs under bump/** to your defined CDK repository with the latest released CDK version. Per default it curls ones a day against https://github.com/aws/aws-cdk to check if there is a new released version. If it finds a new version it will create a branch bump/VERSION and a PR against the default branch (master or main).

It originated from Matthew Bonig blog post.

My main motivation to tweak Matthew's Autobrancher was that I it is inconvenient to subscribe to the CDK Catalog for triggering new PRs. That way I simply check the aws cdk github page.

As well I don't intend to use the Autobrancher Daily for upating the CDK version for real. I only want to see if newer versions are still compatible. The developer using the client repo is responsible for setting the peer dependencies!

Using this App

Prepare the client CDK Repo

• Create .github/workflows/cdkbump.yml . check if you raising PRs against master or main! e.g. https://github.com/mmuller88/aws-cdk-build-badge/blob/master/.github/workflows/cdkbump.yml
• Set the GitHub Secret PUSHABLE_GITHUB_TOKEN="GitHub Token to allow pushing"

Prepare AutoBranchers Stack

After you deployed it with the usuals new projen or pj and yarn deploy you need to insert your GitHub password in the created secret. Yeah thats a bummer and I hope I can switch to use an ssh key in the future ...

Example

new AutoBranchersStack(app, 'auto-brancher-daily', {
  env: devEnv,
  gitHubUser: 'mmuller88',
  repoNames: ['aws-cdk-staging-pipeline', 'aws-cdk-build-badge'],
});

Limitation

Unlucky I didn't get the ssh key github connection working. So I decided to use the github https url with username and password which gets retrieved from the Secret Manager.

Issues and Contributing

If you have any problems, please open an Issue on Github. PRs are always welcome.