What’s Up Docker (WUD) monitors Docker registries and running containers, alerting you to available updates. It authenticates against Docker Hub, GHCR, and LinuxServer registries and exposes a web UI plus HTTP triggers for automation.【F:devtools/compose.yml†L119-L176】
getwud/wud:latestbackend_net/var/run/docker.sock, wud_data:/storecurl to /api/health every 30 seconds with retries.【F:devtools/compose.yml†L170-L176】wud_data nightly; confirm the volume retains tag history after container upgrades.【F:devtools/compose.yml†L186-L200】/var/run/docker.sock.