Tag: containers

Access services on the host machine from inside a Docker container using host-gateway or host.docker.internal — no hardcoded IPs.

Learn how to set Docker resource limits for memory, CPU, swap, and PIDs. Practical guide with real-world sizing examples, OOM killer behavior, and cgroups explained.

The -v and --mount flags for Docker volumes explained — bind mounts vs named volumes, read-only, propagation, and tmpfs options.

COPY and ADD look similar but ADD auto-extracts tarballs and fetches URLs — know when each is appropriate and why COPY is usually better.

Add load balancing and failover to your Docker setup using Swarm, nginx, HAProxy, and Keepalived — high availability without Kubernetes.

Shell globbing breaks inside docker exec because of how args are parsed — here's how to pass wildcards and asterisks correctly.

Self-host Nextcloud in Docker with persistent storage and a reverse proxy — your own Google Drive without the Google.

Move Docker images between hosts without a registry using docker save and docker load — air-gapped deployments made simple.

Get Caddy running as a reverse proxy in Docker — automatic HTTPS, Caddyfile config, and Docker Compose setup in under 10 minutes.

The official, no-nonsense way to install Docker Engine on Ubuntu and Debian — repository setup, key import, and one command to verify it works.

Generate code documentation with Doxygen without installing it — run it from a Docker container and get HTML docs from any codebase.

Learn how lazydocker and dive make Docker manageable from your terminal. TUI dashboards, image layer analysis, CI integration, and optimization tips.