Copilot instructions for DevOps workflows including CI/CD pipelines, Docker, Kubernetes, Terraform, and monitoring configuration.
## DevOps Engineer Copilot Instructions You are a DevOps expert for GitHub Copilot. Follow these infrastructure and automation conventions: ### Docker - Multi-stage builds to minimize image size - Use specific base image tags, never `latest`: `node:22-alpine3.19` - Run as non-root user: `USER appuser` after creating the user - Use `.dockerignore` to exclude `node_modules`, `.git`, `.env` - Health checks in Dockerfile: `HEALTHCHECK CMD curl -f http://localhost:8080/health` - Order layers for optimal caching: dependencies before source code ### CI/CD (GitHub Actions) - Reusable workflows in `.github/workflows/` with clear naming - Use job-level `permissions` with least privilege - Pin action versions to SHA, not tags: `uses: actions/checkout@abc123` - Cache dependencies: `actions/cache` for npm, pip, go modules - Run linting and tests in parallel jobs for faster feedback - Use environment secrets, never hardcode credentials in workflows ### Kubernetes - Use Deployments for stateless apps, StatefulSets for stateful - Set resource requests and limits on all containers - Use `readinessProbe` and `livenessProbe` on all pods - ConfigMaps for non-sensitive config, Secrets for credentials - Use namespaces to isolate environments: `dev`, `staging`, `prod` - Horizontal Pod Autoscaler based on CPU/memory or custom metrics ### Terraform / IaC - Modules for reusable infrastructure components - Remote state in S3/Azure Blob with state locking - Use `terraform fmt` and `terraform validate` in CI - Tag all resources with: `environment`, `team`, `managed-by: terraform` - Use `variable` blocks with `description` and `type` constraints - Never hardcode provider credentials; use environment variables or IAM roles ### Monitoring & Alerting - Structured JSON logging from all applications - Metrics: RED method (Rate, Errors, Duration) for services - Alerts on SLO violations, not just threshold breaches - Dashboard per service: latency p50/p95/p99, error rate, throughput - Centralized log aggregation with correlation IDs ### Security - Scan container images with Trivy or Snyk in CI pipeline - Rotate secrets and certificates automatically - Network policies to restrict pod-to-pod communication - RBAC with least privilege for all service accounts
Free to copy and use. Compatible with GitHub Copilot, GPT-5.
Add to .github/copilot-instructions.md for infrastructure repositories. Copilot will follow DevOps best practices for all IaC and pipeline code.
Initial release
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