DevOps

Jun 20, 2023 Docker and Containers 24 min read

Docker and Containers (5): Docker Compose — Multi-Container Applications

Real applications aren't single containers. Docker Compose lets you define multi-service architectures in a single YAML file — networks, volumes, dependencies, and all.

Jun 18, 2023 Docker and Containers 28 min read

Docker and Containers (3): Dockerfile Patterns — From Naive to Production

A Dockerfile defines how your image is built. The difference between a naive Dockerfile and an optimized one can be 10x in image size and build time.

Jun 16, 2023 Docker and Containers 28 min read

Docker and Containers (1): Why Containers — The Problem VMs Didn't Solve

Containers solve the 'works on my machine' problem that VMs made expensive. Learn what containers actually are, how they differ from VMs, and run your first one.

May 26, 2023 Cloud Computing 58 min read

Cloud Computing (7): Cloud Operations and DevOps Practices

A working DevOps engineer's guide: CI/CD pipelines that gate quality, Terraform for reproducible infrastructure, Prometheus + Grafana monitoring, ELK/EFK logging, SRE error budgets, and the operational habits that keep …