Adding the creation of the image

.github/actions/publish-almalinux/actions.yml

@@ -0,0 +1,44 @@
+name: Publish AlmaLinux
+description: Reusable action to publish the AlmaLinux Docker image
+
+inputs:
+  registry-username:
+    description: registry username
+    required: true
+  registry-password:
+    description: registry password
+    required: true
+  docker-tags:
+    description: Docker image tags
+    required: true
+  docker-labels:
+    description: Docker image labels
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    # needed to build multi-platform images
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Log in to CERN registry
+      uses: docker/login-action@v2
+      with:
+        registry: registry.cern.ch
+        username: ${{ inputs.registry-username }}
+        password: ${{ inputs.registry-password }}
+
+    - run: echo "Publishing Docker images with tags '${{ inputs.docker-tags }}' and labels '${{ inputs.docker-labels }}'"
+      shell: bash
+
+    - name: Publish AlmaLinux
+      uses: docker/build-push-action@v3
+      with:
+        context: ./almalinux/
+        file: ./almalinux/Dockerfile
+        # support images for Intel and Apple Silicon processors
+        platforms: linux/amd64, linux/arm64
+        push: true
+        tags: ${{ inputs.docker-tags }}
+        labels: ${{ inputs.docker-labels }}

.github/workflows/publish_almalinux9.yml

@@ -0,0 +1,53 @@
+name: Publish AlmaLinux
+
+on:
+  push:
+    tags:
+      - v*
+#  schedule:
+#    - cron:  "0 1 * * 2"  # at 01:00 on Tuesday
+  workflow_dispatch:
+    inputs:
+      reason:
+        description: 'Reason'
+        required: false
+        default: 'Manual trigger'
+
+jobs:
+
+  almalinux:
+    name: Publish AlmaLinux
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      # https://github.com/docker/metadata-action
+      # Tags:
+      #   type=semver,pattern=...: on tag pushed, with a valid `semver`, the new image
+      #     will have tags `x`, `x.y`, `x.y.z`. Pre-release GIT tag will tag image
+      #     with only pre-release tag, e.g. `x.y.z-beta.67`, and not the others
+      # Flavor:
+      #    `latest` will tag the image with `latest`
+      - name: Set tags for Docker images
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: registry.cern.ch/cernopendata/cernopendata-portal
+          tags: |
+            type=semver,pattern={{major}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}.{{minor}}.{{patch}}
+            type=semver,pattern={{version}}
+            type=schedule,pattern={{date 'YYYYMMDD'}}
+          flavor: |
+            latest=true
+
+      - name: Publish AlmaLinux
+        uses: ./.github/actions/publish-almalinux
+        with:
+          registry-username: ${{ secrets.CERN_REGISTRY_USERNAME }}
+          registry-password: ${{ secrets.CERN_REGISTRY_PASSWORD }}
+          docker-tags: ${{ steps.meta.outputs.tags }}
+          docker-labels: ${{ steps.meta.outputs.labels }}