WIP - Docker build

.dockerignore

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+.dockerignore
+docker/

.github/workflows/container.yml

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+name: Container CI
+
+on:
+  push:
+    # Build for main, tags and PRs
+    # Builds from PRs are not pushed to the registry because of rules in the steps
+    branches:
+      - docker
+    tags:
+      - "*"
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0 # All history
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Log in to GitHub Docker Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=tag
+            type=raw,value=latest
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build runtime image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: docker/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache

docker/Dockerfile

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+FROM ghcr.io/odin-detector/odin-data-build:latest AS build
+
+# Root of eiger-detector
+COPY . /tmp/eiger-detector
+
+# C++
+WORKDIR /tmp/eiger-detector
+RUN mkdir -p build && cd build && \
+    cmake -DCMAKE_INSTALL_PREFIX=/odin -DODINDATA_ROOT_DIR=/odin ../cpp && \
+    make -j8 VERBOSE=1 && \
+    make install
+
+# Python
+WORKDIR /tmp/eiger-detector/python
+RUN python -m pip install .
+
+# Final image
+FROM ghcr.io/odin-detector/odin-data-runtime:latest
+COPY --from=build /odin /odin
+ENV PATH=/odin/bin:/odin/venv/bin:$PATH
+WORKDIR /odin