Containers

Podman and Docker both run containers but differ in architecture. Compare rootless containers, daemon requirements, Compose support, and Kubernetes.

Manage persistent data in Docker with named volumes and bind mounts. Backup strategies, restore procedures, and container data sharing.

Essential kubectl commands for pods, deployments, services, logs, and debugging Kubernetes clusters. Copy-paste ready DevOps reference.

Debug Kubernetes pods systematically. Fix CrashLoopBackOff, ImagePullBackOff, pending pods, and OOMKilled with diagnostic commands.

Dagger lets you write CI/CD pipelines in real programming languages instead of YAML. Learn how Dagger works, how it compares to GitHub Actions.

Complete Docker tutorial for beginners. Learn containers, images, Dockerfiles, volumes, networking, and Docker Compose step by step.

Master Docker Compose for local development. Multi-service stacks with databases, caching, and hot reload in one command.

Cloud Native Buildpacks automatically detect and build your app without a Dockerfile. Compare Buildpacks and Dockerfiles for build speed, security.

Alpine Linux produces the smallest Docker images. Learn why it's the go-to base for containers and when to use it vs Debian-slim.

Podman vs Docker in 2026: rootless containers, daemonless architecture, native pod support, and when to choose each runtime.

Fedora Atomic desktops (Silverblue, Kinoite) bring immutable OS images and container-based workflows. The future of Linux desktops explained.

Earthly combines Dockerfiles and Makefiles into reproducible, containerized builds. Learn how Earthly works, how to write Earthfiles, and when it replaces.

KubeVirt runs virtual machines alongside containers on Kubernetes. Learn how to deploy VMs as pods, migrate legacy workloads, and manage hybrid container-VM.

Reduce Docker image size by up to 90%. Multi-stage builds, layer caching, distroless base images, and build-time best practices.

Learn Docker fundamentals from scratch — containers, images, Dockerfiles, and real-world workflows. No prior experience needed.

Woodpecker CI is a lightweight, container-native CI/CD system you can self-host. Learn how Woodpecker compares to Drone, GitHub Actions, and GitLab CI.

Docker networking for DevOps engineers. Bridge, host, and overlay networks, DNS discovery, port mapping, and container communication.

Secure container runtimes in production. Non-root users, read-only filesystems, seccomp profiles, AppArmor, and automated vulnerability scanning.

Use Makefiles to streamline container workflows. Build, test, push, deploy targets with environment variables and CI integration.