image-clean.cloudbuild.yaml

# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


steps:
  - name: 'gcr.io/cloud-builders/gcloud'
    id: 'Clean temp container images'
    entrypoint: 'bash'
    args:
      - '-c'
      - |
        LIST_OF_IMAGES="$_IMAGES"
        for IMAGE_URI in $${LIST_OF_IMAGES//;/ }; do
          echo "Cleaning stale versions of: $$IMAGE_URI"
          VERSIONS_TO_CLEAN=$(gcloud artifacts docker images list "$$IMAGE_URI" \
            --include-tags \
            --filter="UPDATE_TIME.date('%Y-%m-%d', Z)<=$(date --date="-${_IMAGE_RETENTION_MIN} days" +'%Y-%m-%d') AND -TAGS:*" \
            --format='value(VERSION)')

          if [ -z "$$VERSIONS_TO_CLEAN" ]; then
            echo "No versions older than $_IMAGE_RETENTION_MIN days to delete"
          fi

          for VERSION in $$VERSIONS_TO_CLEAN; do
            echo "deleting image $$IMAGE_URI@$$VERSION"
            if [ "$_DRY_RUN" != "true" ]; then
              gcloud artifacts docker images delete $$IMAGE_URI@$$VERSION --quiet --async
            fi
          done
        done
substitutions:
  _IMAGES: ""
  _IMAGE_RETENTION_MIN: '7'
  _DRY_RUN: 'false'
timeout: 600s