Watchtower is the Smithflix container-update observer. On this host it runs in monitor-only mode and reports available updates rather than performing unattended upgrades.
This page documents the watchtower service itself. It does not replace the stack pages that define individual image versions.
watchtowercontainrrr/watchtower/opt/stacks/server/compose.yamlserver_defaultunless-stopped2026-04-07--api-version 1.54/var/run/docker.sock -> /var/run/docker.sock/srv/docker/watchtower/watchtower-notification-url -> /run/secrets/watchtower_notification_url/srv/docker/watchtower was not readable to the non-sudo account on 2026-04-072026-04-078080/tcp exists internally but is not bound to the host/srv/docker/watchtower/watchtower-notification-urlAGENTS.md states this notification path targets the self-hosted ntfy topic smithflix-info; that topic name was not directly re-read from the secret file during this checkWATCHTOWER_MONITOR_ONLY=true0 0 4 * * *, which means daily at 04:00 local timeWATCHTOWER_CLEANUP=true is still set, but in monitor-only mode no automatic image updates should be applied--api-version 1.54 override in place for Docker Engine 27 compatibilityjson-filedocker logs watchtower is the primary operational log source/srv/docker/watchtower, which is in the documented Duplicati source tree under /srv/docker/opt/stacks/server/compose.yaml--api-version 1.54 override risks a crash loop or API compatibility failure against the current Docker Engine2026-04-07