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Backgroundworker construct example

Demonstrates a background worker that uses Resque job queue as well as a frontend for it deployed as an internal web service.

It includes:

  • Worker Deployment,
    • We're also setting a custom stopSignal to allow for graceful termination - by default Kubernetes uses SIGTERM and some worker frameworks will perform a non-graceful termination upon receiving that signal. That way when a worker Pod needs to be terminated (e.g. during a release rollout) it should allow for currently processed job to finish for up to terminationGracePeriodSeconds.
  • Resque Deployment, Service, and Ingress.

Usage

In order to synthesize the example to Kubernetes YAML, you need to run the following command:

npx cdk8s synth

This will produce dist/app.k8s.yaml file which you can then apply to your cluster:

kubectl apply -f dist/app.k8s.yaml

Testing

You can run the tests with the following command:

npm test -- examples/background-worker