Update Kubernetes Deployment after pushing image to Docker Hub

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I recently moved FilePreviews.io’s workers deployment to Kubernetes in Google Container Engine. After setting the workers up as a Deployment I wondered how this would fit with my current setup for continuous deployment. On a previous setup, I relied on Docker Hub to automatically build, push tagged images, and notify Rancher via a webhook.

I ended up writing a small server to handle the webhook event from Docker Hub and PATCH the container’s image tags in the Kubernetes deployment which triggers a rollout.

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