docker-buildkit-cleaner

The goal of this repository is described here: Medium Reference

This is a temporary workaround to make free space if you are using Docker with the buildkit builder.

In this repository there are two main folders:

• debug: it contains a pod manifest where you need to fill:

  nodeName: # <NODE_NAME>
  priorityClassName: # <PRIORITY_CLASS> optional
  

• charts: contains an helm chart, not really customizable in the values, that create a namespace and a daemonset if enableCleanup: true

Helm chart description

The idea of the helm chart is that:

1. your CD deploy the chart using values-enable.yaml
2. you wait some time - 1 hour?
3. your CD deploy the chart using values.yaml. This is going to destroy the daemonset and maintain ony the namespace.

The command in the pod is:

docker buildx prune --filter until=168h --verbose --force && echo 'buildkit cleanup done - wait to die' && sleep inf

It deletes the cache older than 7 days, and wait forever until the CI re-deploy the chart using values.yaml

Useful commands

$ cd charts
helm template docker-buildkit-cleaner docker-buildkit-cleaner --output-dir docker-buildkit-cleaner/candidate -f docker-buildkit-cleaner/values-enable.yaml