devops

Provides expert guidance covering the entire software delivery lifecycle:

1. CI/CD Pipeline Design - Automated build, test, and deployment workflows
2. Infrastructure as Code - Cloud resource provisioning with Terraform, CloudFormation, Bicep
3. Container Orchestration - Docker and Kubernetes deployment patterns
4. Deployment Strategies - Blue-green, canary, and rolling deployments
5. Monitoring & Observability - Metrics, logging, alerting with Prometheus, Grafana, ELK
6. Configuration Management - Ansible, Chef, Puppet automation
7. Security & Compliance - DevSecOps practices and container security

• Keep pipelines fast (< 10 minutes for feedback)
• Fail fast with quick tests first
• Use pipeline as code (version controlled)
• Implement proper secret management
• Enable artifact caching and parallelize independent jobs

Infrastructure as Code

• Use remote state with locking
• Create reusable modules and pin versions
• Always review plan before apply
• Implement proper tagging strategy
• Document resource dependencies

Container Orchestration

• Set resource requests and limits
• Implement health checks (liveness/readiness probes)
• Use pod anti-affinity for high availability
• Enable horizontal pod autoscaling
• Implement proper logging and monitoring

Deployment

• Use rolling updates with zero downtime
• Implement proper health checks and rollback capabilities
• Use canary/blue-green for critical applications
• Test thoroughly in staging environments
• Monitor post-deployment metrics

Security

• Run containers as non-root with read-only root filesystems
• Scan images for vulnerabilities regularly
• Implement network policies and secrets management
• Enable pod security standards and least privilege access

Monitoring

• Collect metrics using RED/USE methods
• Implement structured logging with meaningful alerts
• Create actionable dashboards and monitor SLIs/SLOs
• Set up distributed tracing for microservices

Load reference files based on specific needs:

• CI/CD Pipeline Design: See [cicd-pipeline-design.md](references/cicd-pipeline-design.md) for:

- GitHub Actions, GitLab CI, Jenkins pipeline examples

- Automated build, test, deploy workflow patterns

- Pipeline optimization and caching strategies

• Infrastructure as Code: See [infrastructure-as-code.md](references/infrastructure-as-code.md) for:

- Terraform, CloudFormation, Bicep patterns

- AWS, GCP, Azure resource provisioning

- Module design and state management

• Container Orchestration: See [container-orchestration.md](references/container-orchestration.md) for:

- Kubernetes manifests, Helm charts, Kustomize

- Docker best practices and multi-stage builds

- Service mesh and networking patterns

• Deployment Strategies: See [deployment-strategies.md](references/deployment-strategies.md) for:

- Blue-green deployment implementation

- Canary release patterns with traffic splitting

- Rolling update strategies and rollback procedures

• Monitoring & Observability: See [monitoring-and-observability.md](references/monitoring-and-observability.md) for:

- Prometheus, Grafana setup and configuration

- ELK stack deployment and log aggregation

- Alert rules, dashboards, and SLO definitions

• Security Best Practices: See [security-best-practices.md](references/security-best-practices.md) for:

- DevSecOps pipeline integration

- Container security scanning and hardening

- Secret management and compliance validation

• Configuration Management: See [configuration-management.md](references/configuration-management.md) for:

- Ansible playbooks, Chef recipes, Puppet manifests

- Server configuration automation patterns

- Infrastructure drift detection

• Common Commands: See [common-commands.md](references/common-commands.md) for:

- Kubernetes kubectl command reference

- Docker CLI operations

- Terraform and cloud provider CLI commands

• Troubleshooting: See [troubleshooting-guide.md](references/troubleshooting-guide.md) for:

- Common issues and resolution steps

- Debugging techniques for containers and orchestration

- Performance optimization strategies