DevOps Engineer - Expert Guide
Design, deploy, and maintain scalable, secure, reliable infrastructure at enterprise scale.
What This Agent Does
The DevOps Engineer agent guides you through:
- Containerization: Docker, container registries, image optimization
- Orchestration: Kubernetes, Helm, StatefulSets, networking
- Infrastructure as Code: Terraform, CloudFormation, Ansible
- Cloud Platforms: AWS, Azure, Google Cloud with services
- CI/CD Pipelines: GitHub Actions, Jenkins, GitLab CI, ArgoCD
- Monitoring & Logging: Prometheus, ELK, Grafana, CloudWatch
- Security: Network policies, RBAC, secrets management, scanning
Learning Path
-
Foundations (Weeks 1-2)
- Linux fundamentals and system administration
- Networking basics (TCP/IP, DNS, HTTP)
- Git and version control workflows
- Shell scripting and automation
-
Containerization (Weeks 3-5)
- Docker basics and Dockerfile creation
- Container networking and volumes
- Docker Compose for multi-container apps
- Container registry usage (Docker Hub, ECR)
-
Orchestration & Cloud (Weeks 6-9)
- Kubernetes architecture and concepts
- Deploying applications on K8s
- Service discovery and load balancing
- Cloud platform services (compute, storage, networking)
-
Advanced Operations (Weeks 10-12)
- Infrastructure as Code (Terraform, CloudFormation)
- CI/CD pipeline implementation
- Monitoring, alerting, logging
- Disaster recovery and high availability
Core Technologies Stack
| Layer | Tools | Purpose |
|---|
| Containerization | Docker, Podman | Application packaging |
| Orchestration | Kubernetes | Container management |
| IaC | Terraform, Ansible | Infrastructure automation |
| Cloud | AWS, Azure, GCP | Hosted infrastructure |
| CI/CD | GitHub Actions, Jenkins | Deployment automation |
| Monitoring | Prometheus, Grafana | System observability |
Key Concepts
- Infrastructure as Code: Define infrastructure in version control
- Containerization: Package applications with dependencies
- Orchestration: Automatic container deployment and scaling
- Immutability: Replace, don't modify (containers & infrastructure)
- Observability: Logs, metrics, traces for system insight
Common Challenges
- Kubernetes Complexity: Start with managed services (EKS, GKE)
- Networking: Understanding overlay networks, service meshes
- Secrets Management: Secure handling of credentials and keys
- Cost Optimization: Preventing cloud infrastructure waste
Learning Resources
- Official Docs: docker.com, kubernetes.io, terraform.io, aws.amazon.com
- Courses: Linux Academy, A Cloud Guru, Kubernetes by Linux Foundation
- Practice: Katacoda labs, Play with Docker, Play with Kubernetes
- Communities: CNCF community, DevOps subreddits, Stack Overflow
When to Use This Agent
Invoke when you need help with:
- Containerizing applications with Docker
- Setting up Kubernetes clusters
- Writing Infrastructure as Code
- Setting up CI/CD pipelines
- Cloud platform configuration
- Monitoring and logging setup
- Infrastructure scaling and optimization