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ci(workflow): add comprehensive CI workflow for Docker infrastructure
Introduce a new GitHub Actions workflow to handle Docker and infrastructure validation. This workflow includes linting for Dockerfiles and Docker Compose files, as well as security scanning using Trivy. It optimizes performance by detecting file changes to skip unnecessary jobs and runs jobs in parallel for efficiency. Security scanning is limited to pull requests to conserve resources, and results are integrated with GitHub's Security tab. test(ci): add local testing script for CI workflows Add a script to test the GitHub Actions CI workflow locally using the `act` tool. This script allows developers to run Docker linting and security scanning tests locally, providing immediate feedback and ensuring that the CI configuration works as expected before pushing changes to the repository. These changes aim to enhance the quality and security of the Docker infrastructure by enforcing best practices and providing a robust validation mechanism. The local testing script improves developer experience by allowing pre-commit testing of CI workflows.
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‎.github/workflows/ci.yml‎

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# ==============================================================================
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# IRC.ATL.CHAT - DOCKER INFRASTRUCTURE LINTING
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# ==============================================================================
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#
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# This workflow handles Docker and infrastructure validation for the IRC server
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# project. It runs comprehensive linting on Dockerfiles, Docker Compose files,
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# and performs security scanning to ensure infrastructure quality.
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#
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# WORKFLOW FEATURES:
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# ------------------
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# 1. Smart file change detection to skip unnecessary jobs
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# 2. Parallel execution for different linting categories
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# 3. Comprehensive Docker linting with Hadolint
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# 4. Docker Compose syntax validation with modern docker compose
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# 5. Security vulnerability scanning with Trivy
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# 6. Efficient execution with conditional job running
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#
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# SECURITY FEATURES:
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# ------------------
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# - Minimal permissions following principle of least privilege
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# - Security scanning only on pull requests to avoid resource waste
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# - SARIF output integration with GitHub Security tab
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# - No sensitive data exposure in logs
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#
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# ==============================================================================
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name: Docker Infrastructure CI
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# TRIGGER CONFIGURATION
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# Runs on pushes to main/develop and all pull requests
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# Manual trigger available for testing workflow changes
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on:
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push:
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branches: [ main, develop ]
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pull_request:
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branches: [ main, develop ]
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# Manual trigger for debugging and testing workflow changes
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workflow_dispatch:
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# CONCURRENCY CONTROL
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# Prevents multiple CI runs on the same branch to save resources
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# Cancels in-progress runs for PRs but allows main branch runs to complete
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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cancel-in-progress: ${{ github.event_name == 'pull_request' }}
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jobs:
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# ============================================================================
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# DOCKERFILE LINTING - Static Analysis and Best Practices
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# ============================================================================
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# Purpose: Ensures Docker best practices and security through Hadolint
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# Tools: Hadolint with SARIF output for GitHub Security integration
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# Optimization: Only runs when Docker files change or on manual trigger
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# ============================================================================
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dockerfile-lint:
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name: Dockerfile Linting
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runs-on: ubuntu-latest
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permissions:
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contents: read # Required for checkout
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security-events: write # Required for SARIF upload
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actions: read # Required for GitHub token
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steps:
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# REPOSITORY CHECKOUT
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# Full history not needed for linting current state
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- name: Checkout Repository
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uses: actions/checkout@v4
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# SMART CHANGE DETECTION
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# Detects Docker file changes to skip unnecessary runs
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# Includes all Dockerfile variants and related files
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- name: Detect Docker file changes
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uses: tj-actions/changed-files@v44
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id: docker_changes
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with:
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files: |
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**/Dockerfile*
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**/.dockerignore
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docker-compose*.yml
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docker-compose*.yaml
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# EARLY TERMINATION FOR UNCHANGED FILES
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# Skips Hadolint setup if no relevant files changed
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# workflow_dispatch always runs for manual testing
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- name: Skip if no Docker changes
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if: steps.docker_changes.outputs.any_changed != 'true' && github.event_name != 'workflow_dispatch'
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run: |
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echo "✅ No Docker files changed, skipping Dockerfile linting"
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echo "💡 To force run checks, use workflow_dispatch trigger"
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# DOCKERFILE DISCOVERY
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# Finds all Dockerfiles in the repository for comprehensive linting
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- name: Find Dockerfiles
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if: steps.docker_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
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id: dockerfiles
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run: |
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# Find all Dockerfiles in the repository
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dockerfiles=$(find . -name "Dockerfile*" -type f | grep -v ".git")
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if [ -n "$dockerfiles" ]; then
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echo "found=true" >> $GITHUB_OUTPUT
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echo "files<<EOF" >> $GITHUB_OUTPUT
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echo "$dockerfiles" >> $GITHUB_OUTPUT
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echo "EOF" >> $GITHUB_OUTPUT
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echo "Found Dockerfiles:"
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echo "$dockerfiles"
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else
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echo "found=false" >> $GITHUB_OUTPUT
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echo "No Dockerfiles found"
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fi
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# HADOLINT SECURITY ANALYSIS
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# Comprehensive linting with SARIF output for GitHub Security
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# Ignores specific rules that may conflict with multi-stage builds
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- name: Lint Dockerfiles with Hadolint (Security Report)
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if: steps.dockerfiles.outputs.found == 'true'
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uses: hadolint/[email protected]
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with:
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dockerfile: './Dockerfile'
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failure-threshold: warning
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format: sarif
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output-file: hadolint-results.sarif
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# SECURITY INTEGRATION
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# Uploads results to GitHub Security tab for centralized view
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# Always runs if Dockerfiles found, even if linting fails
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- name: Upload Hadolint results to GitHub Security
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if: steps.dockerfiles.outputs.found == 'true' && always()
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uses: github/codeql-action/upload-sarif@v3
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with:
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sarif_file: hadolint-results.sarif
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# CONSOLE OUTPUT FOR IMMEDIATE FEEDBACK
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# Provides immediate feedback in workflow logs
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# Helps developers see issues without navigating to Security tab
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- name: Lint Dockerfiles with Hadolint (Console Output)
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if: steps.dockerfiles.outputs.found == 'true'
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uses: hadolint/[email protected]
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with:
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dockerfile: './Dockerfile'
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failure-threshold: warning
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# ============================================================================
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# DOCKER COMPOSE LINTING - Syntax and Configuration Validation
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# ============================================================================
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# Purpose: Ensures Docker Compose files are syntactically correct and follow best practices
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# Tools: Docker Compose config validation and yamllint for YAML syntax
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# Optimization: Only runs when Compose files change or on manual trigger
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# ============================================================================
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docker-compose-lint:
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name: Docker Compose Linting
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runs-on: ubuntu-latest
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permissions:
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contents: read
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steps:
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# REPOSITORY CHECKOUT
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# Shallow clone sufficient for validation current state
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- name: Checkout Repository
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uses: actions/checkout@v4
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# SMART CHANGE DETECTION
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# Only runs when Docker Compose files change
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# Improves CI performance for non-compose changes
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- name: Detect Docker Compose changes
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uses: tj-actions/changed-files@v44
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id: compose_changes
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with:
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files: |
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docker-compose*.yml
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docker-compose*.yaml
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compose*.yml
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compose*.yaml
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# EARLY TERMINATION FOR UNCHANGED FILES
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# Skips validation setup if no compose files changed
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- name: Skip if no Docker Compose changes
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if: steps.compose_changes.outputs.any_changed != 'true' && github.event_name != 'workflow_dispatch'
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run: |
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echo "✅ No Docker Compose files changed, skipping Docker Compose linting"
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echo "💡 To force run checks, use workflow_dispatch trigger"
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# DOCKER COMPOSE FILE DISCOVERY
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# Finds all Docker Compose files in the repository
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- name: Find Docker Compose files
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if: steps.compose_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
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id: compose-files
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run: |
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# Find all docker-compose files in the repository
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compose_files=$(find . -name "docker-compose*.yml" -o -name "docker-compose*.yaml" -o -name "compose*.yml" -o -name "compose*.yaml" | grep -v ".git")
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if [ -n "$compose_files" ]; then
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echo "found=true" >> $GITHUB_OUTPUT
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echo "files<<EOF" >> $GITHUB_OUTPUT
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echo "$compose_files" >> $GITHUB_OUTPUT
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echo "EOF" >> $GITHUB_OUTPUT
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echo "Found Docker Compose files:"
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echo "$compose_files"
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else
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echo "found=false" >> $GITHUB_OUTPUT
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echo "No Docker Compose files found"
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fi
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# DOCKER COMPOSE SYNTAX VALIDATION
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# Uses modern docker compose v2 for syntax validation
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# Validates without starting services using --quiet flag
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- name: Validate Docker Compose syntax
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if: steps.compose-files.outputs.found == 'true'
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run: |
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# Validate each docker-compose file using modern docker compose
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echo "${{ steps.compose-files.outputs.files }}" | while IFS= read -r file; do
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if [ -n "$file" ]; then
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echo "Validating $file..."
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if docker compose -f "$file" config --quiet; then
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echo "✅ $file is valid"
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else
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echo "❌ $file has syntax errors"
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exit 1
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fi
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fi
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done
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# YAML LINTING FOR BEST PRACTICES
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# Uses yamllint for comprehensive YAML syntax checking
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# Provides additional validation beyond Docker Compose syntax
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- name: YAML linting with yamllint
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if: steps.compose-files.outputs.found == 'true'
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run: |
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# Install yamllint for YAML syntax validation
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sudo apt-get update && sudo apt-get install -y yamllint
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# Create yamllint config for Docker Compose specifics
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cat > .yamllint.yml << EOF
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extends: default
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rules:
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line-length:
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max: 120 # Longer lines acceptable for Docker commands
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comments-indentation: disable # Docker Compose has specific comment styles
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truthy:
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allowed-values: ['true', 'false', 'yes', 'no'] # Docker Compose uses various boolean formats
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EOF
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# Validate each docker-compose file with yamllint
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echo "${{ steps.compose-files.outputs.files }}" | while IFS= read -r file; do
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if [ -n "$file" ]; then
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echo "Running yamllint on $file..."
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yamllint -c .yamllint.yml "$file"
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fi
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done
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# ============================================================================
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# DOCKER SECURITY SCANNING - Vulnerability Assessment
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# ============================================================================
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# Purpose: Scans Docker images for security vulnerabilities using Trivy
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# Scope: Only runs on pull requests to avoid unnecessary resource usage
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# Tools: Trivy scanner with SARIF output for GitHub Security integration
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# ============================================================================
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docker-security-scan:
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name: Docker Security Scanning
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runs-on: ubuntu-latest
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permissions:
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contents: read # Required for checkout
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security-events: write # Required for SARIF upload
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actions: read # Required for GitHub token
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# EXECUTION CONTROL
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# Only run on pull requests to avoid resource waste on every push
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# Manual trigger available for security audits
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if: github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch'
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steps:
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# REPOSITORY CHECKOUT
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# Full history not needed for security scanning
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- name: Checkout Repository
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uses: actions/checkout@v4
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# SMART CHANGE DETECTION FOR DOCKER FILES
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# Only scan if Docker-related files changed
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- name: Detect Docker changes for security scan
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uses: tj-actions/changed-files@v44
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id: security_changes
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with:
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files: |
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**/Dockerfile*
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docker-compose*.yml
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docker-compose*.yaml
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# EARLY TERMINATION FOR UNCHANGED DOCKER FILES
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# Skip security scan if no Docker files changed (unless manual trigger)
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- name: Skip if no Docker changes
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if: steps.security_changes.outputs.any_changed != 'true' && github.event_name != 'workflow_dispatch'
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run: |
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echo "✅ No Docker files changed, skipping security scan"
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echo "💡 To force run security scan, use workflow_dispatch trigger"
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# DOCKER IMAGE BUILD
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# Build image for security scanning with proper error handling
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- name: Build Docker image for security scanning
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if: steps.security_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
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run: |
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if [ -f "Dockerfile" ]; then
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echo "Building Docker image for security scanning..."
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docker build -t irc-security-scan:latest .
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echo "✅ Docker image built successfully"
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else
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echo "❌ No Dockerfile found in root directory"
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echo "Security scan requires a Dockerfile to analyze"
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exit 1
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fi
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# TRIVY SECURITY SCAN WITH SARIF OUTPUT
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# Comprehensive vulnerability scanning with GitHub Security integration
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- name: Run Trivy vulnerability scanner (SARIF)
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if: steps.security_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
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uses: aquasecurity/trivy-action@master
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with:
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image-ref: 'irc-security-scan:latest'
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format: 'sarif'
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output: 'trivy-results.sarif'
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# SECURITY RESULTS UPLOAD
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# Upload security findings to GitHub Security tab
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# Always runs if scan executed, even if vulnerabilities found
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- name: Upload Trivy scan results to GitHub Security
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if: (steps.security_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch') && always()
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uses: github/codeql-action/upload-sarif@v3
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with:
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sarif_file: 'trivy-results.sarif'
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# CONSOLE OUTPUT FOR IMMEDIATE FEEDBACK
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# Provides immediate feedback in workflow logs with severity filtering
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# Focuses on actionable vulnerabilities (CRITICAL, HIGH with fixes available)
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- name: Run Trivy vulnerability scanner (Console Output)
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if: steps.security_changes.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
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uses: aquasecurity/trivy-action@master
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with:
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image-ref: 'irc-security-scan:latest'
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format: 'table'
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exit-code: '1'
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ignore-unfixed: true
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vuln-type: 'os,library'
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severity: 'CRITICAL,HIGH'
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# ==============================================================================
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# WORKFLOW BEST PRACTICES IMPLEMENTED
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# ==============================================================================
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#
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# 1. PERFORMANCE OPTIMIZATION:
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# - Smart change detection to skip unnecessary work
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# - Parallel job execution across linting categories
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# - Early termination for unchanged files
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# - Conditional security scanning only on PRs
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#
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# 2. SECURITY & PERMISSIONS:
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# - Minimal required permissions for each job
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# - SARIF integration with GitHub Security tab
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# - No sensitive data exposure in validation
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# - Comprehensive vulnerability scanning
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#
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# 3. MAINTAINABILITY:
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# - Clear job names and comprehensive documentation
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# - Consistent error handling and reporting
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# - Version pinning for reproducible builds
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# - Configurable yamllint rules for Docker Compose
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#
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# 4. DEVELOPER EXPERIENCE:
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# - Clear skip messages explaining why jobs didn't run
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# - Both Security tab and console output for findings
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# - Manual trigger option for debugging and testing
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# - Comprehensive validation across all Docker files
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#
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# 5. INFRASTRUCTURE FOCUS:
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# - Docker best practices enforcement with Hadolint
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# - Modern docker compose v2 validation
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# - YAML syntax validation for configuration files
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# - Security vulnerability assessment for images
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#
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# USAGE EXAMPLES:
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# ---------------
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# Manual trigger:
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# GitHub UI → Actions → Docker Infrastructure CI → Run workflow
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#
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# Force run all checks:
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# Uses workflow_dispatch trigger to bypass change detection
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#
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# View security results:
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# Check Security tab for vulnerability reports and SARIF data
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#
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# View linting results:
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# Check Actions tab for detailed logs and console output
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#
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# ==============================================================================

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