Build docker image in CI

.github/workflows/build-container.yml

@@ -0,0 +1,55 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    tags: 
+      - 'v*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
+      - name: Install Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+
+      - name: Build and push Docker Image
+        uses: docker/build-push-action@v5
+        with:
+          platforms: linux/amd64,linux/arm64
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

docs/src/qsa-api/installation.md

@@ -1,6 +1,6 @@
 # QSA REST API : installation
 
-From sources:
+## From sources
 
 ```` shell
 $ cd qsa-api
@@ -10,6 +10,6 @@ $ . venv/bin/activate
 (venv)$ poetry install
 ````
 
-Binary distributions:
+## Docker image
 
-TODO : provide a docker image on Dockerhub
+A prebuilt image can be found on `ghcr.io/pblottiere/qsa`. Otherwise the image can be manually be built using: `docker build -t my-custom-qsa-image .` See [Sandbox](sandbox/) for details how to use it.

sandbox/docker-compose.yml

@@ -18,7 +18,7 @@ services:
     image: pblottiere/qsa
     build:
       context: ..
-      dockerfile: sandbox/Dockerfile
+      dockerfile: Dockerfile
     volumes:
       - ./dem.tif:/dem.tif
       - ./data.gpkg:/data.gpkg