Immutable Infrastructure
The discipline of never modifying running servers or containers — replace them instead. Image baking with Packer and Docker, AMI / GCE / Azure image lifecycles, distroless and minimal-OS patterns (Bottlerocket, Talos), and the tradeoffs against mutable config management.
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More DevOps topics
- How User Requests Travel in Kubernetes
- HTTP 4xx and 5xx in Kubernetes — Which Hop Sent It and How to Fix It
- IaC Governance
- IaC State Management
- Identity, Secrets and Config Errors — Workload Identity, Stale ConfigMaps and Secret Stores
- Image Update Automation
- Infrastructure as Code
- Ingress & Gateway API
- Ingress and Load Balancer Errors — 502, 503, 504, 404, 413 and TLS
- Install and CLI Fundamentals
- Installation and Bootstrap
- Internal Developer Platforms
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