DevOps practices, CI/CD, and infrastructure management
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---
name: devops
description: DevOps practices, CI/CD, and infrastructure management
category: skill
allowed-tools: Read, Write, Glob, Grep, Bash
user-invocable: true
context: inject
---
# DevOps Skills
## Overview
DevOps practices for continuous integration, delivery, and operations
to enable fast, reliable software delivery.
## DevOps Lifecycle
```
┌─────────────────────────────────────────────────────────────────┐
│ CONTINUOUS │
│ ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐ ┌───────┐ │
│ │ Plan │→ │ Code │→ │Build │→ │ Test │→ │Release│ │
│ └──────┘ └──────┘ └──────┘ └──────┘ └───────┘ │
│ ↑ │ │
│ │ INTEGRATION / DELIVERY ↓ │
│ ┌──────┐ ┌───────┐ ┌──────┐ │
│ │Learn │← │Monitor│← │Deploy│ │
│ └──────┘ └───────┘ └──────┘ │
│ OPERATIONS │
└─────────────────────────────────────────────────────────────────┘
```
## Categories
### CI/CD
- Pipeline fundamentals
- GitHub Actions / GitLab CI
- Pipeline patterns
- Deployment strategies (Blue-Green, Canary)
### Containerization
- Docker fundamentals
- Docker Compose
- Container best practices
- Multi-stage builds
### Orchestration
- Kubernetes basics
- Helm charts
- Service mesh
- GitOps (ArgoCD, Flux)
### Monitoring
- Metrics and SLIs/SLOs
- Prometheus & Grafana
- Alerting strategies
- Dashboard design
### Logging
- Structured logging
- Log aggregation
- ELK/EFK stack
- Distributed tracing
### Infrastructure
- Infrastructure as Code
- Terraform
- Cloud patterns
- Cost optimization
### Reliability
- SRE fundamentals
- Incident management
- Chaos engineering
- Disaster recovery
## DORA Metrics
| Metric | Elite | High | Medium | Low |
|--------|-------|------|--------|-----|
| Deployment Frequency | On-demand | Weekly | Monthly | Yearly |
| Lead Time | < 1 day | 1 week | 1 month | > 6 months |
| Change Failure Rate | < 15% | 16-30% | 31-45% | > 45% |
| MTTR | < 1 hour | < 1 day | < 1 week | > 1 week |
## Skills Index
### CI/CD
- [CI/CD Fundamentals](ci-cd/ci-cd-fundamentals.md)
- [GitHub Actions](ci-cd/github-actions.md)
- [GitLab CI](ci-cd/gitlab-ci.md)
- [Pipeline Patterns](ci-cd/pipeline-patterns.md)
- [Deployment Strategies](ci-cd/deployment-strategies.md)
### Containerization
- [Docker Basics](containerization/docker-basics.md)
- [Docker Compose](containerization/docker-compose.md)
- [Container Best Practices](containerization/container-best-practices.md)
- [Multi-Stage Builds](containerization/multi-stage-builds.md)
### Orchestration
- [Kubernetes Basics](orchestration/kubernetes-basics.md)
- [Helm Charts](orchestration/helm-charts.md)
- [Service Mesh](orchestration/service-mesh.md)
- [GitOps](orchestration/gitops.md)
### Monitoring
- [Metrics Fundamentals](monitoring/metrics-fundamentals.md)
- [Prometheus & Grafana](monitoring/prometheus-grafana.md)
- [Alerting](monitoring/alerting.md)
- [Dashboards](monitoring/dashboards.md)
### Logging
- [Logging Best Practices](logging/logging-best-practices.md)
- [Structured Logging](logging/structured-logging.md)
- [ELK Stack](logging/elk-stack.md)
- [Log Aggregation](logging/log-aggregation.md)
### Infrastructure
- [IaC Fundamentals](infrastructure/iac-fundamentals.md)
- [Terraform Basics](infrastructure/terraform-basics.md)
- [Cloud Patterns](infrastructure/cloud-patterns.md)
- [Cost Optimization](infrastructure/cost-optimization.md)
### Reliability
- [SRE Fundamentals](reliability/sre-fundamentals.md)
- [Incident Management](reliability/incident-management.md)
- [Chaos Engineering](reliability/chaos-engineering.md)
- [Disaster Recovery](reliability/disaster-recovery.md)
## DevOps Maturity Model
```
┌─────────────────────────────────────────────────────────────────┐
│ DevOps Maturity Levels │
├─────────────────────────────────────────────────────────────────┤
│ │
│ Level 5: Optimizing │
│ ├── Continuous improvement culture │
│ ├── Predictive analytics │
│ └── Self-healing systems │
│ │
│ Level 4: Measured │
│ ├── Comprehensive metrics │
│ ├── Data-driven decisions │
│ └── Automated compliance │
│ │
│ Level 3: Defined │
│ ├── Standardized pipelines │
│ ├── Infrastructure as Code │
│ └── Centralized logging/monitoring │
│ │
│ Level 2: Managed │
│ ├── Basic CI/CD │
│ ├── Some automation │
│ └── Manual deployments │
│ │
│ Level 1: Initial │
│ ├── Ad-hoc processes │
│ ├── Manual everything │
│ └── Siloed teams │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Best Practices
1. **Automate Everything** - Reduce manual toil
2. **Version Control All** - Code, configs, infrastructure
3. **Shift Left** - Test and secure early
4. **Measure What Matters** - Focus on DORA metrics
5. **Embrace Failure** - Learn from incidents
6. **Continuous Improvement** - Iterate and optimize
7. **Collaboration** - Break down silos
8. **Documentation** - Runbooks and playbooks
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