add dockerfile

.github/workflows/ci.yml

@@ -24,3 +24,43 @@ jobs:
         run: cargo clippy --verbose --workspace
       - name: Check formatting
         run: cargo fmt --check --verbose
+
+  build-and-push-image:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+    needs:
+      - lint
+    if: success() && github.ref_name == 'main' && github.event_name == 'push'
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Get Docker Metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: | # tag with commit hash and with 'latest'
+            type=sha 
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and Push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -0,0 +1,25 @@
+FROM rust:1 as builder
+
+# create empty projects
+RUN USER=root cargo new --bin go2
+WORKDIR /go2
+
+# copy package manifest in 
+COPY Cargo.toml Cargo.lock /go2
+
+# build to cache deps
+RUN cargo build --release
+RUN rm src/*.rs
+
+# copy source code in
+COPY ./dcspkg-server/src ./src
+
+# build our code
+RUN rm ./target/release/deps/dcspkg*
+RUN cargo build --release
+
+# new base, slimmer, no toolchains
+FROM debian:bullseye-slim
+COPY --from=builder /dcspkg-server/target/release/dcspkg_server .
+
+CMD [ "./dcspkg_server" ]