ci.yml

name: test
on:
  pull_request:

env:
  RUST_BACKTRACE: 1

# Spend CI time only on latest ref: https://docs.github.com/en/actions/using-jobs/using-concurrency
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  unit:
    strategy:
      # Prevent GitHub from cancelling all in-progress jobs when a matrix job fails.
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions-rs/toolchain@v1
        with:
          override: true
          toolchain: stable
          profile: minimal
      # Smart caching for Rust projects.
      # Includes workaround for macos cache corruption.
      # - https://github.com/rust-lang/cargo/issues/8603
      # - https://github.com/actions/cache/issues/403
      - uses: Swatinem/rust-cache@v2

      # Install OpenSSL Libraries for Windows
      # - name: install openssl
      #   if: matrix.os == 'windows-latest'
      #   run: |
      #     $ErrorActionPreference = "Stop"
      #     choco install --verbose openssl
      #     openssl version
      #     refreshenv
      #     echo "OPENSSL_LIB_DIR=C:/Program Files/OpenSSL-Win64/lib" >> $env:GITHUB_ENV
      #     echo "OPENSSL_DIR=C:/Program Files/OpenSSL-Win64/" >> $env:GITHUB_ENV
      #     echo "OPENSSL_INCLUDE_DIR=C:/Program Files/OpenSSL-Win64/include" >> $env:GITHUB_ENV

      # Real CI work starts here
      - name: Build workspace
        run: cargo build

      - name: Build no-features
        run: cargo build -p kube --no-default-features
        if: matrix.os == 'ubuntu-latest' # only linux tests all feature combinations
      - name: Build no-tls
        run: cargo build -p kube --no-default-features --features=client
        if: matrix.os == 'ubuntu-latest' # only linux tests all feature combinations

      # Workspace unit tests with various feature sets
      - name: Run workspace unit tests (no default features)
        run: cargo test --workspace --lib --no-default-features -j6
        if: matrix.os == 'ubuntu-latest' # only linux tests all feature combinations
      - name: Run workspace unit tests (default features)
        run: cargo test --workspace --lib --exclude kube-examples --exclude e2e -j6
        if: matrix.os != 'macos-latest'
      - name: Run workspace unit tests (all features)
        if: matrix.os != 'windows-latest'
        run: cargo test --workspace --lib --all-features --exclude kube-examples --exclude e2e -j6
      # Workspace documentation (all features only)
      - name: Run workspace doc tests
        run: cargo test --workspace --doc --all-features --exclude kube-examples --exclude e2e -j6
        if: matrix.os == 'ubuntu-latest'
      - name: Run ad-hoc doc test verification
        run: |
          if rg "\`\`\`ignored"; then
            echo "ignored doctests are not allowed, use compile_fail or no_run"
            exit 1
          fi
        if: matrix.os == 'ubuntu-latest'
      # Examples
      - name: Test examples
        if: matrix.os != 'windows-latest'
        run: cargo test -p kube-examples --examples -j6

  doc:
    runs-on: ubuntu-latest
    name: doc
    steps:
      - uses: actions/checkout@v4
      - name: Install nightly
        uses: dtolnay/rust-toolchain@nightly
      - name: cargo doc
        run: cargo doc --no-deps --all-features
        env:
          RUSTDOCFLAGS: --cfg docsrs

  msrv:
    # Run `cargo check` on our minimum supported Rust version
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@main
    - name: Find MSRV
      id: msrv
      run: |
        MSRV=$(grep MSRV README.md | grep -oE "[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+")
        echo $MSRV
        echo "msrv=${MSRV}" >> $GITHUB_OUTPUT
    - uses: actions-rs/toolchain@v1
      with:
        toolchain: ${{ steps.msrv.outputs.msrv }}
        profile: minimal
        override: true
    - uses: Swatinem/rust-cache@v2
    - name: Check
      uses: actions-rs/cargo@v1
      with:
        command: check
        args: --workspace

    - name: Check rust-version keys matches advertised MSRV
      run: |
        if ! cat Cargo.toml | grep "rust-version" | grep "${{ steps.msrv.outputs.msrv }}"; then
          echo "msrv policy inconsistent with rust-version key"
          exit 1
        fi

    - name: Check devcontainer matches MSRV
      run: |
        versions=$(sed -nE 's|^FROM (.*/)?rust:([^ ]+)|\2|p' .devcontainer/Dockerfile)
        echo "Versions: $versions"
        mismatches=$(echo "$versions" | grep -v '^${{ steps.msrv.outputs.msrv }}' || true)
        echo "Mismatches: $mismatches"
        if [ -n "$mismatches" ]; then
          echo "::error ::Devcontainer includes incorrect rust version(s): $mismatches"
          exit 1
        fi

  integration:
    runs-on: ubuntu-latest
    strategy:
      # Prevent GitHub from cancelling all in-progress jobs when a matrix job fails.
      fail-fast: false
      matrix:
        # Run these tests against older clusters as well
        k8s: [v1.26, v1.30]
    steps:
      - uses: actions/checkout@v4
      - uses: actions-rs/toolchain@v1
        with:
          override: true
          toolchain: stable
          profile: minimal
      # Smart caching for Rust projects.
      # Includes workaround for macos cache corruption.
      # - https://github.com/rust-lang/cargo/issues/8603
      # - https://github.com/actions/cache/issues/403
      - uses: Swatinem/rust-cache@v2

      - uses: nolar/setup-k3d-k3s@v1
        with:
          version: ${{matrix.k8s}}
          # k3d-kube
          k3d-name: kube
          # Used to avoid rate limits when fetching the releases from k3s repo.
          # Anonymous access is limited to 60 requests / hour / worker
          # github-token: ${{ secrets.GITHUB_TOKEN }}
          k3d-args: "-p 10250:10250 --no-rollback --k3s-arg --disable=traefik,servicelb,metrics-server@server:*"

      # Real CI work starts here
      - name: Build workspace
        run: cargo build

      # Run the equivalent of `just integration`
      - name: Run all integration library tests
        run: cargo test --lib --workspace --exclude e2e --all-features -j6 -- --ignored
      - name: Run crd example tests
        run: cargo run -p kube-examples --example crd_api
      - name: Run derive example tests
        run: cargo run -p kube-examples --example crd_derive

  mk8sv:
    # comile check e2e tests against mk8sv
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Find MK8SV
        id: mk8sv
        run: |
          MK8SV=$(grep MK8SV README.md | grep -oE "[[:digit:]]+\.[[:digit:]]+" | head -n 1)
          echo $MK8SV
          echo "mk8sv=${MK8SV}" >> $GITHUB_OUTPUT
          echo "mk8svdash=v${MK8SV/\./_}" >> $GITHUB_OUTPUT

      - name: Check ci jobs run against advertised MK8SV
        run: |
          if ! grep "${{ steps.mk8sv.outputs.mk8sv }}" -q .github/workflows/ci.yml; then
            echo "mk8sv not set correctly in tests"
            exit 1
          fi
          if ! grep "${{ steps.mk8sv.outputs.mk8svdash }}" e2e/Cargo.toml | grep mk8sv; then
            echo "mk8sv not set correctly in e2e features"
            exit 1
          fi

      - uses: actions-rs/toolchain@v1
        with:
          override: true
          toolchain: stable
          profile: minimal
      # Smart caching for Rust projects.
      # Includes workaround for macos cache corruption.
      # - https://github.com/rust-lang/cargo/issues/8603
      # - https://github.com/actions/cache/issues/403
      - uses: Swatinem/rust-cache@v2

      - uses: nolar/setup-k3d-k3s@v1
        with:
          version: v1.26
          # k3d-kube
          k3d-name: kube
          # Used to avoid rate limits when fetching the releases from k3s repo.
          # Anonymous access is limited to 60 requests / hour / worker
          # github-token: ${{ secrets.GITHUB_TOKEN }}
          k3d-args: "--no-lb --no-rollback --k3s-arg --disable=traefik,servicelb,metrics-server@server:*"

      # Real CI work starts here
      - name: Build workspace
        run: cargo build

      - name: boot openssl, latest k8s
        run: cargo run -p e2e --bin boot --features=openssl,latest
      - name: boot openssl, minimum supported k8s
        run: cargo run -p e2e --bin boot --features=openssl,mk8sv
      - name: boot rustls, latest k8s
        run: cargo run -p e2e --bin boot --features=rustls,latest
      - name: boot rustls, minimum supported k8s
        run: cargo run -p e2e --bin boot --features=rustls,mk8sv

  in-cluster:
    # in-cluster e2e via docker on linux
    runs-on: ubuntu-latest
    strategy:
      # Prevent GitHub from cancelling all in-progress jobs when a matrix job fails.
      fail-fast: false
      matrix:
        tls: [openssl, rustls]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry/index
            ~/.cargo/registry/cache
            ~/.cargo/git
            target
          key: musl-cargo-${{ hashFiles('**/Cargo.toml') }}-${{matrix.tls}}

      - uses: nolar/setup-k3d-k3s@v1
        with:
          version: latest
          # k3d-kube
          k3d-name: kube
          # Used to avoid rate limits when fetching the releases from k3s repo.
          # Anonymous access is limited to 60 requests / hour / worker
          # github-token: ${{ secrets.GITHUB_TOKEN }}
          k3d-args: "--no-lb --no-rollback --k3s-arg --disable=traefik,servicelb,metrics-server@server:*"
      - name: Compile e2e job against ${{matrix.tls}}
        run: |
          mkdir -p ~/.cargo/{git,registry}
          docker run --rm -t \
              --mount type=bind,source=${{ github.workspace }},target=/volume \
              --mount type=bind,source=$HOME/.cargo/registry,target=/root/.cargo/registry \
              --mount type=bind,source=$HOME/.cargo/git,target=/root/.cargo/git \
              clux/muslrust:stable \
              cargo build -p e2e --release --bin=job --features=latest,${{matrix.tls}} -v
          cp target/x86_64-unknown-linux-musl/release/job e2e/

      - name: Build image
        run: "docker build -t clux/kube-e2e:${{ github.sha }} e2e/"
      - name: Import image
        run: "k3d image import clux/kube-e2e:${{ github.sha }} --cluster kube"
      - run: sed -i 's/latest/${{ github.sha }}/g' e2e/deployment.yaml

      - name: Create resource
        run: kubectl apply -f e2e/deployment.yaml -n apps
      - run: kubectl get all -n apps
      - run: kubectl describe jobs/e2e -n apps
      - name: Wait for job to complete
        run: |
          kubectl wait --for=condition=complete job/e2e -n apps --timeout=50s || kubectl logs -f job/e2e -n apps
          kubectl get all -n apps
          kubectl wait --for=condition=complete job/e2e -n apps --timeout=10s || kubectl get pods -n apps | grep e2e | grep Completed