add github workflow

.github/workflows/build.yml

@@ -0,0 +1,53 @@
+name: Docker Build and Push
+
+on:
+  release:
+    types: [created]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: |
+            type=gha,scope=planner
+            type=gha,scope=builder
+            type=gha,scope=runtime
+          cache-to: |
+            type=gha,mode=max,scope=planner
+            type=gha,mode=max,scope=builder
+            type=gha,mode=max,scope=runtime
+          target: runtime

Dockerfile

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+FROM lukemathwalker/cargo-chef:latest-rust-1.81.0 AS chef
+WORKDIR app
+
+FROM chef AS planner
+COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM chef AS builder
+COPY --from=planner /app/recipe.json recipe.json
+RUN apt-get update && apt-get install -y --no-install-recommends libssl-dev pkg-config gcc && apt-get -y clean
+RUN cargo chef cook --release --recipe-path recipe.json
+COPY . .
+RUN cargo b -r
+
+FROM ubuntu:22.04 AS runtime
+WORKDIR /fendbot
+RUN apt-get update && apt-get install -y --no-install-recommends openssl ca-certificates libssl-dev && apt-get -y clean
+COPY --from=builder /app/target/release/fendbot /usr/local/bin
+ENTRYPOINT ["/usr/local/bin/fendbot"]