canary.yaml

name: Canary
on:
  schedule:
    - cron: "0 0 * * *"
  workflow_dispatch:
  push:
    branches:
      - "canary*"
env:
  tool_rust_version: 1.78.0
  rust_nightly_version: nightly-2024-03-15

jobs:
  generate-canary-matrix:
    runs-on: ubuntu-latest
    name: Generate Canary Matrix
    steps:
      - uses: actions/checkout@v4
      - uses: actions/checkout@v4
        with:
          repository: awslabs/smithy-rs
          path: smithy-rs
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ env.tool_rust_version }}
      - name: Generate the matrix
        id: generate-matrix
        working-directory: smithy-rs/tools/ci-cdk/canary-runner
        # Run the `canary-runner generate-matrix` subcommand to calculate a test matrix
        # for the `canary` job. This script outputs JSON that GitHub Actions can consume
        # as a matrix definition. Rust versions to test against are arguments to this script.
        run: |
          cargo build
          # Rust versions should just be the MSRV and the latest stable compiler
          echo "matrix=$(cargo run -- generate-matrix --sdk-versions 3 --rust-versions ${{ env.tool_rust_version }} stable)" >> "${GITHUB_OUTPUT}"
    outputs:
      matrix: ${{ steps.generate-matrix.outputs.matrix }}

  canary:
    needs: generate-canary-matrix
    name: Canary
    runs-on: ubuntu-latest
    env:
      AWS_DEFAULT_REGION: us-west-2
      CARGO_INCREMENTAL: "0"
      RUST_VERSION: ${{ matrix.rust_version }}
      SDK_RELEASE_TAG: ${{ matrix.sdk_release_tag }}
    permissions:
      id-token: write
      contents: read
      pull-requests: write
    strategy:
      fail-fast: false
      # Use the matrix generated by the previous job
      matrix: ${{ fromJson(needs.generate-canary-matrix.outputs.matrix) }}
    steps:
      - uses: actions/checkout@v4
        with:
          repository: awslabs/smithy-rs
          path: smithy-rs
          # Fetch all history so that the runner can change to different commits
          fetch-depth: 0
      # Each canary run uses a different Rust version, and the `rust-toolchain.toml`
      # file interferes with that version selection.
      - name: Delete `rust-toolchain.toml`
        working-directory: smithy-rs
        run: rm rust-toolchain.toml
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust_version }}
          targets: x86_64-unknown-linux-musl
      - name: Install dependencies
        run: sudo apt-get update && sudo apt-get install -y awscli musl-dev musl-tools
      - name: Install cargo component for wasm canary
        env:
          # Must be in sync with that specified in `smithy-rs`
          CARGO_COMPONENT_VERSION: 0.13.2
        run: |
          rustup toolchain install ${{ env.rust_nightly_version }}
          rustup component add rustfmt
          cargo +${{ env.rust_nightly_version }} install cargo-component --locked --version ${CARGO_COMPONENT_VERSION}
      - name: Compile the canary runner
        working-directory: smithy-rs/tools/ci-cdk/canary-runner
        run: cargo build
      - uses: aws-actions/configure-aws-credentials@v4
        name: Acquire credentials for running the canary
        with:
          role-to-assume: ${{ secrets.CANARY_WORKFLOW_GITHUB_ACTIONS_ROLE_ARN }}
          aws-region: us-west-2
      - name: Run the canary
        env:
          CANARY_STACK_CDK_OUTPUTS_BUCKET_NAME: ${{ secrets.CANARY_STACK_CDK_OUTPUTS_BUCKET_NAME }}
        run: |
          # If `smithy-rs` lives under `aws-sdk-rust`, the following `cargo run` will run into a workspace problem:
          #   `cargo metadata` exited with an error: error: current package believes it's in a workspace when it's not:
          #   current:   /home/runner/work/aws-sdk-rust/aws-sdk-rust/smithy-rs/tools/ci-cdk/canary-wasm/Cargo.toml
          #   workspace: /home/runner/work/aws-sdk-rust/aws-sdk-rust/Cargo.toml
          # The checkout action does not allow us to clone a repo outside the github workspace, i.e. using `path: ../smithy-rs`
          # (https://github.com/actions/checkout/issues/197).
          # We work around it by manually moving `smithy-rs` outside of `aws-sdk-rust`.
          mv smithy-rs ../
          cd ../smithy-rs/tools/ci-cdk/canary-runner

          aws s3 cp s3://"${CANARY_STACK_CDK_OUTPUTS_BUCKET_NAME}"/cdk-outputs.json .

          cargo run -- \
            run --rust-version ${RUST_VERSION} \
                --sdk-release-tag ${SDK_RELEASE_TAG} \
                --cdk-output cdk-outputs.json \
                --musl