Add nightly job for updating latest and stable tags

Signed-off-by: Samuel Monson <[email protected]>

Author: sjmonson

.github/workflows/container-maintenance.yml

@@ -0,0 +1,30 @@
+name: Container Image Maintenance
+
+on:
+  schedule:
+    - cron: '0 2 * * 3'  # Runs at 2am on Wednesdays
+  workflow_dispatch:  # Enables manual triggering of the workflow
+
+jobs:
+  push-container-tags:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Log into ghcr.io
+        uses: redhat-actions/podman-login@v1
+        with:
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+          registry: ghcr.io/${{ github.repository_owner }}
+      - name: Get list of tags
+        run: |
+          skopeo list-tags docker://${{ github.repository }} | jq --raw-output '.Tags[]' > tags
+      - name: Get latest release and rc tags
+        run: |
+          STABLE_TAG="$(grep -P '^v\d+\.\d+\.\d+$' tags | sort -rV | head -n1)"
+          echo "STABLE_TAG=${STABLE_TAG:-v0.0.0}" >> $GITHUB_ENV
+          LATEST_TAG="$(grep -P '^v\d+\.\d+\.\d+' tags | sort -rV | head -n1)"
+          echo "LATEST_TAG=${LATEST_TAG:-v0.0.0}" >> $GITHUB_ENV
+      - name: Update latest and stable tags
+        run: |
+          skopeo copy docker://${{ github.repository }}:${{ env.stable_tag }} docker://${{ github.repository }}:stable
+          skopeo copy docker://${{ github.repository }}:${{ env.latest_tag }} docker://${{ github.repository }}:latest

.github/workflows/release-candidate.yml

@@ -306,7 +306,7 @@ jobs:
           image: ${{ github.event.repository.name }}
           build-args: |
             GUIDELLM_BUILD_TYPE=candidate
-          tags: latest ${{ env.package_version }}-rc
+          tags: ${{ env.package_version }}~rc
           containerfiles: |
             ./Containerfile
       - name: Push To ghcr.io

.github/workflows/release.yml

@@ -305,7 +305,7 @@ jobs:
           image: ${{ github.event.repository.name }}
           build-args: |
             GUIDELLM_BUILD_TYPE=release
-          tags: latest stable ${{ env.package_version }}
+          tags: ${{ env.package_version }}
           containerfiles: |
             ./Containerfile
       - name: Push To ghcr.io