Introduction

This document provides a step-by-step guide on how Continuous Integration and Continuous Deployment (CI/CD) are automated within the ConsenSys Quorum project, including detailed code examples of the relevant scripts.

Current CI/CD Status

As of the latest update, the CI/CD automation scripts are set up within the project. The CI/CD workflows are primarily defined in YAML files located in the .github/workflows directory. This includes the following workflows:

• build.yml
• pr.yml
• release.yml
• upgradebot.yml

Each of these files orchestrates different aspects of the CI/CD process.

Overview of CI/CD Scripts

1. Build Workflow (build.yml)

The build.yml file is responsible for compiling the code, running tests, and building Docker images. Here is a sample excerpt of what this might look like:

name: Build

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: '1.16'  # Specify Go version

      - name: Build the application
        run: go build -o quorum ./cmd/geth 

      - name: Run tests
        run: go test -tags=gofuzz ./...

This workflow will ensure that the code is checked out, the appropriate Go environment is set up, the application is built, and tests are run with the defined build constraint gofuzz.

2. Pull Request Workflow (pr.yml)

The pr.yml file handles the continuous integration for pull requests. It runs the tests to verify that the new changes do not break the code. Below is an illustrative example:

name: Pull Request CI

on:
  pull_request:
    branches:
      - main
  
jobs:
  test:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: '1.16'

      - name: Run tests
        run: go test -tags=gofuzz ./...

This workflow is similar to the build workflow but triggers on pull requests, ensuring that tests run automatically and provide feedback to developers.

3. Release Workflow (release.yml)

The release workflow manages the deployment of new versions of the software. This might include creating new Docker images and publishing them to a registry. Below is an example excerpt:

name: Release

on:
  release:
    types: [created]

jobs:
  publish:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Build and push Docker image
        uses: docker/build-push-action@v2
        with:
          context: .
          file: Dockerfile
          push: true
          tags: myrepo/quorum:${{ github.ref }}

This workflow is triggered by the creation of a new release, helping to automate the process of building and pushing Docker images.

4. Upgrade Bot Workflow (upgradebot.yml)

The upgrade bot workflow might manage dependency updates or version upgrades automatically. Here is a simplified version of what this file might contain:

name: Upgrade Bot

on:
  schedule:
    - cron: '0 0 * * 0'  # Weekly on Sunday
  
jobs:
  upgrade:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Upgrade dependencies
        run: go get -u ./...

This enables proactive management of dependencies, ensuring the code remains up to date with the latest libraries and tools.

Conclusion

The CI/CD automation for the ConsenSys Quorum project is structured and handles various aspects of development workflows through organized YAML scripts within the .github/workflows directory. By setting up build, test, release, and upgrade workflows, the project ensures robust deployment practices.

Refer to the YAML snippets for design guidance when creating or modifying these workflows.

Source: This document is based on the directory structure and default practices expected in a project utilizing CI/CD automation with GitHub Actions, as referenced in the repository structure given.