Build the docker images on push (tags & latest)

Author: stronk7

.github/workflows/docker-build-and-publish.yml

@@ -0,0 +1,57 @@
+name: Docker build and publish
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - 'v*'
+
+env:
+  GITHUB_OWNER: 'moodlehq'
+  REPOSITORY: 'wiki-rag'
+
+jobs:
+  Build-and-Publish:
+    # Completely avoid forks and pull requests to try this job.
+    if: github.repository_owner == 'moodlehq' && contains(fromJson('["push"]'), github.event_name)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Fetch all history for tags (we need that for setuptools-scm to find the version)
+
+      - name: Calculate image tags and labels
+        id: calculatetags
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/${{ env.GITHUB_OWNER }}/${{ env.REPOSITORY }}
+          tags: |
+            type=pep440,pattern={{version}}
+            type=pep440,pattern={{major}}.{{minor}}
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and publish to GitHub registry
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          provenance: false
+          tags: ${{ steps.calculatetags.outputs.tags }}
+          labels: ${{ steps.calculatetags.outputs.labels }}