Add docker build optimizations

.github/workflows/docker.yml

@@ -23,6 +23,17 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
       - name: Log in to the Container registry
         uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
         with:
@@ -44,3 +55,5 @@ jobs:
           push: true
           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

Dockerfile

@@ -1,4 +1,5 @@
-FROM rust:1.67.0
+# Build Stage
+FROM rust:1.67.0 AS builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends clang cmake build-essential
 
@@ -8,4 +9,11 @@ COPY . .
 
 RUN cargo build --release
 
-ENTRYPOINT ["/bin/bash", "-c", "./target/release/mutinynet-faucet-rs ${FLAGS}"]
+# Run Stage
+FROM debian:buster-slim
+
+WORKDIR /app
+
+COPY --from=builder /app/target/release/mutinynet-faucet-rs /app/mutinynet-faucet-rs
+
+ENTRYPOINT ["/bin/bash", "-c", "./mutinynet-faucet-rs ${FLAGS}"]