add Docker image build

Author: matthieugouel

.github/workflows/docker.yml

@@ -0,0 +1,59 @@
+name: Create and publish a Docker image
+on:
+  push:
+    branches: [ "main" ]
+  workflow_run:
+    workflows: [ "Rust" ]
+    types:
+      - completed
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@7ca345011ac4304463197fac0e56eab1bc7e6af0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@0de3687b53cd804b63dd87819f7bda043569ce4a
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Sync theme submodule 
+        run: git submodule sync && git submodule update --init --recursive
+
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@5e99dacf67635c4f273e532b9266ddb609b3025a
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v1
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true

.github/workflows/rust.yml

@@ -0,0 +1,18 @@
+name: Rust
+
+on: [ "push", "pull_request" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose

Dockerfile

@@ -0,0 +1,21 @@
+FROM rust:latest AS builder
+
+WORKDIR /app
+
+COPY . .
+
+RUN cargo build --release
+
+FROM debian:stable-slim
+
+RUN apt-get update \
+    && apt-get install -y openssl \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /app/target/release/chbot /app/chbot
+
+EXPOSE 3000
+EXPOSE 4000
+
+ENTRYPOINT [ "/app/chbot" ]
+CMD [ "--help" ]