Is there a way to automatically deploy to GCE based on a new image being created in Google Container Registry?

user_1892857 0
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I have a Kubernetes deployment on GCE, which I'd like to get automatically updated based on new images being created in Google Container Registry (ideally via a Build Trigger). Is there a way to do that?

Thanks in advance.

-Mark

google-container-builder google-container-registry google-kubernetes-engine kubernetes
3 Answers

Another option: some of our users use the kubectl build step to trigger a deployment at the end of their build.

You can call any kubectl command in your build step, provided that you have set up the proper IAM permissions to do so as part of a build. (See the README.) This example calls kubectl get pods.

Note that images are only automatically pushed at the end of a completed build, so to build an image and deploy it in one build, you'll need to insert your own docker push build step prior to your deployment step.

user_55570740

You can use Google Cloud pub/sub to listen to changes in Google Container Registry. This page gives an overview of this feature. You may want to use the push model for your application.

However, please note that this is an alpha feature and its behavior may change in future releases.

If you don't want the external control provided by pub/sub, your build script should do the following,

  1. Tag the image and upload to container registry
  2. Update image version in deployment scripts
  3. Run the deployment script which in turn will pull the latest image
user_59096550
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