feat: add image docker cleanup workflows

SE-6574

Signed-off-by: Gabor Boros <gabor@opencraft.com>

Author: gabor-boros

.github/workflows/cleanup-container-packages.yml

@@ -0,0 +1,45 @@
+name: Cleanup Container Packages
+
+on:
+  workflow_call:
+    inputs:
+      RUNNER_WORKFLOW_LABEL:
+        description: "The label of the runner workflow to run"
+        required: false
+        type: string
+        default: "ubuntu-latest"
+      MIN_VERSIONS_TO_KEEP:
+        description: "Number of newest package versions to retain per GHCR package"
+        required: false
+        type: number
+        default: 5
+      PACKAGE_SUFFIXES_JSON:
+        description: 'JSON array of package name suffixes (GHCR package is "<repo>/<suffix>")'
+        required: false
+        type: string
+        default: '["openedx","mfe"]'
+      DELETE_ONLY_UNTAGGED_VERSIONS:
+        description: "If true, only untagged container versions are eligible for deletion"
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  cleanup:
+    name: Cleanup ${{ matrix.package_suffix }}
+    runs-on: ${{ inputs.RUNNER_WORKFLOW_LABEL }}
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      fail-fast: false
+      matrix:
+        package_suffix: ${{ fromJSON(inputs.PACKAGE_SUFFIXES_JSON) }}
+    steps:
+      - name: Cleanup registry
+        uses: actions/delete-package-versions@v5
+        with:
+          package-name: ${{ github.event.repository.name }}/${{ matrix.package_suffix }}
+          package-type: container
+          min-versions-to-keep: ${{ inputs.MIN_VERSIONS_TO_KEEP }}
+          delete-only-untagged-versions: ${{ inputs.DELETE_ONLY_UNTAGGED_VERSIONS }}

cluster-template/launchpad-{{cookiecutter.cluster_slug_normalized}}-cluster/.github/workflows/cleanup-container-packages.yml

@@ -0,0 +1,19 @@
+name: Cleanup Container Packages
+
+on:
+  schedule:
+    - cron: "0 3 * * 0" # Sunday 03:00 UTC
+  workflow_dispatch:
+
+jobs:
+  cleanup-container-packages:
+    name: Cleanup container packages
+    permissions:
+      contents: read
+      packages: write
+    uses: open-craft/launchpad-cluster-template/.github/workflows/cleanup-container-packages.yml@main
+    with:
+      RUNNER_WORKFLOW_LABEL: "{{ cookiecutter.runner_workflow_label }}"
+      MIN_VERSIONS_TO_KEEP: 5
+      PACKAGE_SUFFIXES_JSON: '["openedx","mfe"]'
+      DELETE_ONLY_UNTAGGED_VERSIONS: false