actually committing content

.github/workflows/docker.yml

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+name: Docker
+
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+' # Exclude pre-releases
+    branches:
+      - main
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    env:
+      USER: sdss
+      APP: zora
+    steps:
+      - name: Set docker tags
+        id: set-tags
+        run: |
+          echo TAG_LATEST=$USER/$APP:latest >> $GITHUB_OUTPUT
+          if [[ $GITHUB_REF == refs/heads/main ]]
+          then
+            echo TAGS=$USER/$APP:latest >> $GITHUB_OUTPUT
+          elif [[ $GITHUB_REF == refs/heads/* ]]
+          then
+            BRANCH=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's/[\/]/_/g')
+            echo TAGS=$USER/$APP:$BRANCH >> $GITHUB_OUTPUT
+          else
+            echo TAGS=$USER/$APP:${GITHUB_REF#refs/tags/} >> $GITHUB_OUTPUT
+          fi
+      - name: Show tags
+        run: echo ${{ steps.set-tags.outputs.TAGS }}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Log in to registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ steps.set-tags.outputs.TAGS }}
+            ghcr.io/${{ steps.set-tags.outputs.TAG_LATEST }}
+          file: ./Dockerfile
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}