Automated cleanup of images built by integration tests in our GCP project

[chanseokoh]

The GCR of our integration testing project has accumulated thousands of images. I am cleaning them, but we will continue to accumulate them.

To list all the immediate "sub-repositories":

gcloud container images list --repository="gcr.io/${GCP_PROJECT}"

To delete all tags of a repository (not tested and may not work):

NAME="gcr.io/${GCP_PROJECT}/simpleimage"
gcloud container images list-tags "${NAME}" --format='get(digest)' \
  | sed -e "s,^,${NAME}@," \
  | xargs gcloud container images delete --quiet --force-delete-tags

FTR:

#!/bin/sh

GCP_PROJECT="${1:-jib-integration-testing}"

delete_images() { 
  echo "* Deleting images in ${1}..."

  local tags=$( gcloud container images list-tags "${1}" --format='get(digest)' \
    | sed -e "s,^,${1}@," )
  if [ -n "${tags}" ]; then
    gcloud container images delete --quiet --force-delete-tags $tags
  else
    echo "no tags to delete"
  fi
}

delete_repository() {
  local repositories=$( gcloud container images list --repository="${1}" )
  for repo in ${repositories}; do
    if [ "${repo}" != "NAME" ]; then
      ( delete_repository "${repo}" )
      delete_images "${repo}"
    fi
  done
}

delete_repository "gcr.io/${GCP_PROJECT}"

[loosebazooka]

@chanseokoh should we do some sort of weekly cron cleanup at 2am on sunday?

[chanseokoh]

Yeah, we can do this. The question is, where to implement this cron. I've been doing this occasionally on my machine.