DevOps: What are DevOps best practices?

1# 1. IaC (Infrastructure as Code)
2# Terraform, Pulumi, CloudFormation
3
4# 2. CI/CD
5# GitHub Actions, GitLab CI, Jenkins
6
7# 3. Containerization
8# Docker, Kubernetes
9
10# 4. Monitoring & Observability
11# Prometheus + Grafana
12# ELK/Loki for logs
13# Jaeger for traces
14
15# 5. Security
16# SAST/DAST scanning
17# Container scanning (Trivy)
18# Secret management (Vault)
19
20# 6. GitOps
21# ArgoCD, Flux
22# Declarative configuration
23
24# 7. Incident Management
25# On-call rotations
26# Runbooks
27# Post-mortems
28
29# 8. Documentation
30# ADR (Architecture Decision Records)
31# Runbooks
32# Onboarding guides
33
34# 9. Cost optimization
35# Spot instances
36# Right-sizing
37# Reserved instances
38
39# 10. Continuous improvement
40# Retrospectives
41# Metrics-driven decisions
42# Experimentation