Docker Compose basics for your VPS
Install Docker Engine and Compose v2 on Ubuntu 24.04, write a real two-service compose.yml, dodge the ufw port-publishing trap, and back up volumes.
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Self-host Rocket.Chat with Docker Compose
Self-host Rocket.Chat on a VPS with Docker Compose: the single-node MongoDB replica set it requires, TLS, backups, and every failure mode fixed.
Traefik + Docker Compose: 5 apps, auto TLS
Run five apps behind one IP with Traefik v3 on Docker Compose: routing by Host rule, automatic Let's Encrypt TLS, and the acme.json trap that blocks startup.