Docker

Jun 23, 2023 Docker and Containers 28 min read

Docker and Containers (8): Beyond Docker — Kubernetes, Swarm, and What Comes Next

Single-host Docker breaks down at scale. This article previews container orchestration — Docker Swarm for simplicity, Kubernetes for everything else — and maps out the broader cloud-native ecosystem.

Jun 22, 2023 Docker and Containers 28 min read

Docker and Containers (7): Security — Running Containers Without Giving Away the Keys

Containers provide isolation, not security. Default Docker configurations run processes as root with full capabilities. This article shows how to lock containers down for production.

Jun 21, 2023 Docker and Containers 26 min read

Docker and Containers (6): Debugging and Logging — When Things Go Wrong Inside a Box

Containers hide their internals by design. When something breaks, you need specific tools and techniques to see inside the box without breaking the isolation that makes containers useful.

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 19, 2023 Docker and Containers 28 min read

Docker and Containers (4): Networking and Volumes — How Containers Talk and Persist

Containers are ephemeral by default — they lose data when deleted and run in isolated networks. Volumes and networks are the two mechanisms that connect containers to the persistent, communicating world.

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 17, 2023 Docker and Containers 26 min read

Docker and Containers (2): Images and Layers — What docker pull Actually Downloads

Docker images aren't monolithic files — they're stacks of read-only layers shared between containers. Understanding layers is the key to fast builds and small images.

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.

Mar 11, 2023 Cloud Computing 16 min read

Cloud Computing (3): Cloud-Native and Container Technologies

Why cloud-native exists, what containers actually do at the kernel level, how Kubernetes really works, when service mesh is worth its weight, and how the whole stack fits together in production.

Feb 20, 2023 Cloud Computing 18 min read

Cloud Computing (2): Virtualization Technology Deep Dive

A hands-on guide to virtualization -- hypervisors (VMware, KVM, Xen, Hyper-V), storage and network virtualization, performance tuning, and container comparison.

Apr 24, 2022 Python Engineering 28 min read

Python Engineering (7): Packaging — From pip install to PyPI

Package your Python code for distribution via pip, publish to PyPI, create Docker images, and manage versioning. The complete guide from local project to installable package.