33 docs tagged with "docker"

The best Docker containers to self-host in 2026 for home servers, home labs and developers — dashboards, ad blockers, media servers, and dev tools, with the top pick in each category.

Run Caddy as a reverse proxy with Docker Compose: a two-line Caddyfile, automatic Let's Encrypt HTTPS, several sites on one server, zero-downtime reload, and fixes for common errors.

Where should you host your Docker containers? A comparison of cheap VPS providers (Hetzner, DigitalOcean) vs. PaaS options for 2025.

A guide and examples for converting complex docker run commands into clean docker-compose.yml files.

extra_hosts in Docker Compose: both syntaxes, what host-gateway resolves to and how to change it, how to check /etc/hosts, and the fix for connection refused on Linux.

How to add a healthcheck in Docker Compose, with copy-ready checks for Postgres, MySQL, Redis and HTTP apps, the default timings, and depends_on with condition: service_healthy.

How networks work in Docker Compose — the default network, service name DNS, custom and external networks, isolating a database, and why one container cannot reach another.

Docker Compose port syntax in full: host:container, IP binding, ranges, UDP, the long form, ports vs expose — and the two gotchas that silently expose a container or stop it starting.

How to restart Docker Compose services and set restart policies — restart vs up, the no/always/on-failure/unless-stopped options, and restarting one service.

Copy-paste ready Docker Compose templates for common stacks: Node+Postgres, Python+Redis, WordPress, and more.

Update Docker Compose containers to a new image: docker compose pull and up -d, one service at a time, --pull always, --force-recreate, rollback to the old image, and safe automatic updates.

How Docker Compose volumes work — named volumes vs bind mounts, syntax, persisting data, sharing data between services, and backups, with copy-paste examples.

Docker Compose vs Kubernetes compared on what they do, what they cost you in time, and when to switch — plus how Docker, Compose, Swarm and Kubernetes relate to each other.

Learn how to use 'docker compose watch' for hot-reloading and faster development cycles.

Use a locally built Docker image in Compose without pushing to a registry. build vs image, pull_policy: never, and fixing 'manifest not found' errors.

Understand Docker's host networking mode, when to use --network host, and how to access local services using host.docker.internal on Linux, Mac, and Windows.

Run Docker on a Synology NAS with Container Manager (DSM 7.2+): install the package, map volumes so data survives, avoid DSM port conflicts, and run a docker-compose.yml as a Project.

Understand the difference between Docker and Docker Compose, and when to use each.

Fix 'E: Unable to locate package docker-compose-plugin' in 5 commands. Copy-paste steps for Ubuntu 20.04/22.04/24.04 and Debian 11/12, plus the 3 error variants (no installation candidate, dpkg overwrite, docker-compose-v2).

Docker and container glossary: essential terms, concepts, and commands with clear definitions.

A working docker-compose.yml for Grafana: persistent volume, admin password, a Prometheus data source provisioned from a file, plugins, and a Caddy HTTPS example.

Run HAProxy 3.4 with Docker Compose: a working haproxy.cfg, Let's Encrypt HTTPS with a Certbot container, several sites, reload without downtime, and fixes for 503 and certificate errors.

How to use docker cp to copy files and directories between your host machine and Docker containers, with examples and permission fixes.

Install Docker Compose v5 on Ubuntu 22.04/24.04/26.04, Debian 12/13, any Linux and macOS. Copy-paste commands, how to check the version, and fixes for 'docker compose is not a docker command'.

A working docker-compose.yml for Komga, the open-source comics, manga, and eBook server — persistent volumes, port 25600, permissions, and a Caddy HTTPS example.

Set up Nginx as a reverse proxy with Docker Compose: proxy_pass to app containers, free Let's Encrypt HTTPS with the built-in ACME module (no Certbot), several sites, reload, and fixes for 502 and 'host not found in upstream'.

A copy-ready Docker Compose file for PostgreSQL 18: persistent volume, healthcheck, local-only port, connecting from an app, backups, and the PostgreSQL 18 volume path change.

How to run Docker inside Proxmox LXC containers. Covers the nesting + keyctl config, privileged vs unprivileged containers, and ZFS storage drivers.

Run your own private Docker registry with Docker Compose. registry:2 setup, HTTPS via Caddy, basic auth, listing images, and garbage collection.

How to ensure your Docker Compose services start automatically when your server reboots.

Self-host Supabase with Docker Compose: clone the repo, set JWT_SECRET, ANON_KEY and SERVICE_ROLE_KEY, start all 7 services, and reach Studio on port 3000 and the API gateway on port 8000.

Run Traefik v3 with Docker Compose: route containers with labels, get Let's Encrypt certificates automatically, redirect HTTP to HTTPS, and fix 404 and 'client version too old' errors.

A working docker-compose.yml for Trilium Notes — the persistent data volume, port 8080, a Caddy HTTPS example, and the reverse-proxy setting that stops Trilium from crashing on startup.