Create version-cleanup.yml

.github/workflows/version-cleanup.yml

@@ -0,0 +1,33 @@
+# Docker image build and publish workflow
+# CREDIT: Adopted from
+name: Docker Build & Publish
+
+# running on every release and on manual dispatch
+on:
+  workflow_dispatch:
+
+env:
+  # set the registry to the GitHub Container Registry
+  REGISTRY: ghcr.io
+  # set github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}:${{ github.ref }}
+
+# jobs to run
+jobs:
+
+  # cleanup job
+  cleanup:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+
+    # steps to run on the job
+    steps:
+    - name: Delete Package Versions
+      uses: actions/[email protected]
+      with: 
+        package-name: 'thesis-webapp'
+        package-type: 'container'
+        min-versions-to-keep: 2