{ Josh Rendek }

<3 Go & Kubernetes

Helm not updating image, how to fix

Jul 16, 2018 - 1 minutes

If you have your imagePullPolicy: Always and deploys aren’t going out (for example if you’re using a static tag, like stable) - then you may be running into a helm templating bug/feature.

If your helm template diff doesn’t change when being applied the update won’t go out, even if you’ve pushed a new image to your docker registry.

A quick way to fix this is to set a commit sha in your CICD pipeline, in GitLab for example this is $CI_COMMIT_SHA.

If you template this out into a values.yaml file and add it as a label on your Deployment - when you push out updates your template will be different from the remote, and tiller and helm will trigger an update provided you’ve set it properly, for example:

2    - helm upgrade -i APP_NAME -i --set commitHash=$CI_COMMIT_SHA
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