Tag: containers

Docker Networking Essential Guide for All Skill Levels

Bridge, host, overlay, macvlan, and none — every Docker network mode explained with real use cases from beginner to production.

Understanding CMD and ENTRYPOINT in Dockerfiles

CMD and ENTRYPOINT both define what runs in a container but work differently — exec vs shell form, and how they interact when combined.

Copying Files Between Docker Containers and Host Machines

Use docker cp to move files between running containers and your host machine — no volumes needed for one-off file transfers.

Multiple Actions with a Single docker exec Call

Run multiple commands in one docker exec call by piping a heredoc to the container shell — chain dependent steps and skip repeated container roundtrips.

WordPress, Docker, NGINX, and MySQL via Ansible

Automate a full WordPress stack deployment — Docker, nginx, and MySQL — using Ansible playbooks instead of clicking through wizards.

Uptime Monitoring with Uptime Kuma

Uptime Kuma monitors your services and sends alerts when they go down — beautiful self-hosted alternative to UptimeRobot.

Observability and Monitoring for Containers

Logs, metrics, and traces for Docker containers — Prometheus, Loki, Grafana, and OpenTelemetry to know what's happening inside your stack.

Docker vs Podman: Key Differences

Docker needs a daemon; Podman doesn't. Compare architecture, rootless support, Compose compatibility, and which one belongs in your workflow.

Docker Compose: Orchestrating Multi-Container Applications

Move beyond single containers — Docker Compose lets you define and run multi-service apps with one YAML file and one command.

Wiki.js for your documentation in docker

Wiki.js is a gorgeous self-hosted wiki with Markdown, WYSIWYG, and Git sync — Docker Compose setup with PostgreSQL backend.

Automatic Backup of Docker MySQL or MariaDB Containers

Automate MySQL/MariaDB backups from a running Docker container using cron and mysqldump — no downtime, no excuses for losing your data.

Install a php script in PHP-FPM & Caddy via Docker

Run PHP apps with PHP-FPM and Caddy in Docker — FastCGI configuration, volume mounts, and the Caddyfile that wires it all together.