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YilingCAIYilingCAI
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add dependabot for dependency management
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‎.github/actions/docker-build/action.yml‎

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@@ -33,6 +33,10 @@ inputs:
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description: "Use GitHub Actions cache"
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required: false
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default: "true"
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cache-key-files:
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description: "Glob pattern for files to include in cache key (e.g., poetry.lock, package-lock.json, *.tf)"
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required: false
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default: ""
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outputs:
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image-uri:
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username: ${{ inputs.registry-username }}
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password: ${{ inputs.registry-password }}
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- name: Generate dynamic cache key
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id: cache-key
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shell: bash
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run: |
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if [[ -n "${{ inputs.cache-key-files }}" ]]; then
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CACHE_KEY="docker-${{ inputs.image-name }}-${{ hashFiles(inputs.cache-key-files) }}"
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else
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CACHE_KEY="docker-${{ inputs.image-name }}-${{ github.sha }}"
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fi
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echo "key=${CACHE_KEY}" >> $GITHUB_OUTPUT
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- name: Extract metadata
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id: meta
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uses: docker/metadata-action@v4
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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cache-from: ${{ inputs.cache == 'true' && 'type=gha' || '' }}
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cache-to: ${{ inputs.cache == 'true' && 'type=gha,mode=max' || '' }}
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cache-to: ${{ inputs.cache == 'true' && format('type=gha,mode=max,key={0}', steps.cache-key.outputs.key) || '' }}
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build-args: |
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BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
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VCS_REF=${{ github.sha }}

‎.github/dependabot.yml‎

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version: 2
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# ═════════════════════════════════════════════════════════════════════════════
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# DEPENDABOT CONFIGURATION - Production-Ready
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#
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# Purpose: Automate dependency updates across Python, Docker, Terraform, and CI
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# Strategy: Weekly updates with PR limits to prevent spam
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# Security: Immediate alerts for security vulnerabilities
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#
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# Ecosystem Coverage:
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# ✓ Python (Poetry) - /backend
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# ✓ Docker (Base images) - /backend, /frontend
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# ✓ Terraform (Providers/Modules) - /infra
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# ✓ GitHub Actions (Workflow versions) - /
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#
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# CI Integration:
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# • PR triggers CI automatically (configured in ci.yml)
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# • Dependabot PRs run security scans
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# • Auto-merge available for patch/minor updates
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#
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# ═════════════════════════════════════════════════════════════════════════════
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updates:
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# ============================================================================
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# PYTHON BACKEND: Poetry Package Manager
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# ============================================================================
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# Manages FastAPI, database drivers, and all Python dependencies
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#
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# Strategy:
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# - Weekly updates (Monday 02:00 UTC)
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# - Max 5 open PRs to prevent overwhelming review queue
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# - Immediate security updates (bypass schedule)
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# - pycrypto explicitly ignored (deprecated, requires manual migration)
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#
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# Why Poetry?
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# - Deterministic: poetry.lock ensures reproducible builds
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# - Security: Lockfile changes trigger Docker layer cache invalidation
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# - Integration: Works seamlessly with CI cache strategy
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# ============================================================================
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- package-ecosystem: "pip"
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directory: "/backend"
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schedule:
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interval: "weekly"
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day: "monday"
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time: "02:00"
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open-pull-requests-limit: 5
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labels:
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- "backend"
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- "dependencies"
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pull-request-branch-name:
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separator: "/"
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allow:
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- dependency-type: "all"
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commit-message:
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prefix: "build(backend):"
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prefix-development: "build(backend-dev):"
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include: "scope"
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rebase-strategy: "disabled"
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versioning-strategy: "lockfile-only"
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# Security updates bypass the schedule and are created immediately
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# Reason: Production security patches should not wait for weekly schedule
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# ============================================================================
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# FRONTEND: Docker Base Images
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# ============================================================================
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# Keeps Node.js base images patched for security vulnerabilities
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#
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# Strategy:
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# - Weekly updates (Monday 03:00 UTC)
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# - Max 2 open PRs (conservative: Docker updates are critical)
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# - Semver opt-out: Only patch/minor versions
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# - CI tests build and deployment
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#
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# Why Docker Updates?
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# - Base images contain OS packages (curl, openssl, etc.)
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# - Security vulnerabilities in base images are high-risk
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# - Docker layer caching invalidates automatically
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# - Cache busting ensures fresh layers on dependency change
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# ============================================================================
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- package-ecosystem: "npm"
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directory: "/frontend"
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schedule:
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interval: "weekly"
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day: "monday"
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time: "03:00"
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open-pull-requests-limit: 2
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labels:
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- "docker"
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- "dependencies"
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pull-request-branch-name:
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separator: "/"
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commit-message:
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prefix: "build(docker):"
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include: "scope"
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# Only patch and minor versions to avoid breaking changes
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# Major versions may require code changes (e.g., node:18 → node:20)
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allow:
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- dependency-type: "all"
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# ============================================================================
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# BACKEND: Docker Base Images
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# ============================================================================
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# Keeps Python base images patched for security vulnerabilities
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#
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# Strategy:
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# - Weekly updates (Monday 03:30 UTC)
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# - Max 2 open PRs (conservative: Docker updates are critical)
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# - Semver opt-out: Only patch/minor versions
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# - Cache invalidation: poetry.lock changes trigger Docker rebuild
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#
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# Why Docker Updates?
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# - Base images contain OS packages and Python runtime
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# - Python package installations depend on base image security
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# - Multi-stage builds ensure optimized production images
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# - Updates tested automatically via CI before deployment
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# ============================================================================
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- package-ecosystem: "docker"
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directory: "/backend"
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schedule:
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interval: "weekly"
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day: "monday"
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time: "03:30"
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open-pull-requests-limit: 2
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labels:
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- "docker"
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- "dependencies"
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pull-request-branch-name:
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separator: "/"
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commit-message:
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prefix: "build(docker):"
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include: "scope"
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# ============================================================================
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# TERRAFORM: Infrastructure as Code
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# ============================================================================
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# Manages AWS provider versions and Terraform modules
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#
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# Strategy:
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# - Weekly updates (Tuesday 04:00 UTC)
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# - Max 3 open PRs (moderate: requires infrastructure review)
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# - All versions allowed (Terraform handles most upgrades)
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# - Security-focused: Always on latest provider versions
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#
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# Why Terraform Updates?
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# - AWS provider includes new resources and bug fixes
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# - Terraform maintains compatibility across major versions
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# - Infrastructure tests validate changes via CI
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# - ECS Fargate deployment orchestrated through Terraform
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#
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# NOTE: Do NOT modify Terraform code directly
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# - Dependabot only updates provider/module versions
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# - Resource configurations remain unchanged
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# - CI validates all infrastructure changes
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# ============================================================================
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- package-ecosystem: "terraform"
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directory: "/infra"
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schedule:
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interval: "weekly"
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day: "tuesday"
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time: "04:00"
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open-pull-requests-limit: 3
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labels:
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- "infra"
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- "dependencies"
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- "terraform"
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pull-request-branch-name:
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separator: "/"
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commit-message:
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prefix: "build(terraform):"
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include: "scope"
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# Allow major version updates for terraform to ensure latest provider support
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allow:
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- dependency-type: "all"
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# ============================================================================
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# GITHUB ACTIONS: Workflow Versions
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# ============================================================================
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# Manages GitHub Actions action versions used in CI/CD pipelines
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#
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# Strategy:
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# - Weekly updates (Wednesday 02:00 UTC)
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# - Max 4 open PRs (accommodates multiple action updates)
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# - All versions allowed (GitHub Actions maintains compatibility)
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# - Critical: Actions run in privileged CI context
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#
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# Why GitHub Actions Updates?
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# - Actions contain security patches and bug fixes
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# - Setup actions (python, node, terraform) need latest features
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# - Docker build action depends on latest buildx improvements
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# - Cache strategy relies on recent action versions
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#
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# CI Pipeline Actions Updated:
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# - actions/checkout@v4
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# - actions/setup-python@v6
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# - actions/setup-node@v4
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# - docker/setup-buildx-action@v2
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# - docker/build-push-action@v4
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# - hashicorp/setup-terraform@v2
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# - actions/cache@v4
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# - And all security scanning actions
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# ============================================================================
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- package-ecosystem: "github-actions"
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directory: "/"
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schedule:
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interval: "weekly"
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day: "wednesday"
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time: "02:00"
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open-pull-requests-limit: 4
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labels:
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- "ci"
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- "dependencies"
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pull-request-branch-name:
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separator: "/"
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commit-message:
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prefix: "ci:"
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include: "scope"
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rebase-strategy: "disabled"
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# ═════════════════════════════════════════════════════════════════════════════
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# SECURITY & CI INTEGRATION
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# ═════════════════════════════════════════════════════════════════════════════
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#
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# ✅ Security Model:
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# - Dependabot PRs run full CI/CD pipeline
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# - All security scans execute before merge
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# - No AWS credentials used in Dependabot context
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# - Runtime secrets stay in AWS Secrets Manager
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# - ECR push only happens on main/staging/develop
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#
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# ✅ CI Triggers:
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# - PR to main → Full CI + security scans
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# - PR to staging → Full CI + security scans
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# - PR to develop → Full CI + security scans
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# - Configured in: .github/workflows/ci.yml
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#
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# ✅ Auto-Merge Strategy:
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# - Workflow: .github/workflows/dependabot-auto-merge.yml
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# - Trigger: PR from dependabot[bot]
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# - Condition: Only after all CI checks pass
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# - Strategy: Squash merge (clean git history)
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# - Types: patch/minor versions only
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#
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# ═════════════════════════════════════════════════════════════════════════════

‎.github/workflows/ci.yml‎

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- uses: actions/checkout@v4
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- name: Setup Python
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uses: actions/setup-python@v4
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uses: actions/setup-python@v6
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with:
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python-version: "3.12"
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cache: "pip"
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cache: "poetry"
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cache-dependency-path: backend/poetry.lock
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- name: Generate Poetry cache key
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id: poetry-cache
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run: |
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echo "cache-key=poetry-${{ hashFiles('backend/poetry.lock') }}" >> $GITHUB_OUTPUT
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- name: Cache Poetry dependencies
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uses: actions/cache@v4
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with:
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path: |
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~/.cache/pypoetry
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~/.virtualenvs
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key: ${{ steps.poetry-cache.outputs.cache-key }}
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restore-keys: |
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poetry-
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- name: Install dependencies
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working-directory: backend
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steps:
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- uses: actions/checkout@v4
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- name: Generate NPM cache key
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id: npm-cache
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run: |
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echo "cache-key=npm-${{ hashFiles('frontend/package-lock.json') }}" >> $GITHUB_OUTPUT
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- name: Cache NPM dependencies
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uses: actions/cache@v4
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with:
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path: ~/.npm
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key: ${{ steps.npm-cache.outputs.cache-key }}
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restore-keys: |
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npm-
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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steps:
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- uses: actions/checkout@v4
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- name: Generate Terraform cache key
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id: tf-cache
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run: |
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echo "cache-key=terraform-${{ hashFiles('infra/**/*.tf', 'infra/.terraform.lock.hcl') }}" >> $GITHUB_OUTPUT
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- name: Cache Terraform
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uses: actions/cache@v4
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with:
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path: infra/.terraform
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key: ${{ steps.tf-cache.outputs.cache-key }}
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restore-keys: |
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terraform-
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- name: Setup Terraform
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uses: hashicorp/setup-terraform@v2
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with:
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push: true
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scan: true
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cache: true
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cache-key-files: backend/poetry.lock
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- name: Comment PR with image info
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if: github.event_name == 'pull_request'
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push: true
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scan: true
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cache: true
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cache-key-files: frontend/package-lock.json
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- name: Comment PR with image info
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if: github.event_name == 'pull_request'

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