changedetection.io on Ubuntu 24.04

changedetection.io is the open source, self-hosted website change monitor. Point it at any web page (prices, stock, terms, competitor pages, job boards, government notices) and it tells you the moment the content changes, showing a diff of exactly what was added or removed and alerting you through email, Slack, Discord, Telegram, webhooks and 80+ Apprise channels. The cloudimg image installs Docker CE from the official Docker repo and runs changedetection.io 0.55.7 as a container bound to loopback 127.0.0.1:5000 behind nginx on port 80 (WebSocket-aware for the live watch list, plus an unauthenticated /healthz). A single shared login password is generated uniquely on first boot; the watch list, history and settings live on a dedicated 20 GiB Azure data disk. Backed by 24/7 cloudimg support.