Merge pull request #1549 from rust-lang/ci-cache

Optimize Dockerfile to speed up CI caching

Author: Kobzol

.github/workflows/ci.yml

@@ -23,8 +23,14 @@ jobs:
       - name: Formatting check
         run: cargo fmt --all -- --check
 
-      - name: Test and build
-        run: docker build -t rustc-perf .
+      - uses: docker/setup-buildx-action@v2
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          tags: rustc-perf
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
 
       - name: Deploy to production
         uses: rust-lang/simpleinfra/github-actions/upload-docker-image@master

Dockerfile

@@ -1,11 +1,13 @@
 FROM node:18 as frontend
 
-COPY ./site ./site
+COPY ./site/frontend ./site/frontend
 RUN cd site/frontend && npm ci
 RUN cd site/frontend && npm run check
 RUN cd site/frontend && npm run build
 
-FROM ubuntu:20.04 as build
+FROM ubuntu:20.04 as base
+
+ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
 
 RUN apt-get update -y && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -23,6 +25,17 @@ RUN apt-get update -y && \
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
     --default-toolchain stable --profile minimal -y
 
+RUN bash -c 'source $HOME/.cargo/env && cargo install cargo-chef'
+
+FROM base AS planner
+COPY . .
+RUN bash -c 'source $HOME/.cargo/env && cargo chef prepare --recipe-path recipe.json'
+
+FROM base as build
+COPY --from=planner recipe.json recipe.json
+
+RUN bash -c 'source $HOME/.cargo/env && cargo chef cook --release --recipe-path recipe.json'
+
 COPY ./Cargo.lock ./Cargo.lock
 COPY ./Cargo.toml ./Cargo.toml
 COPY ./collector ./collector