Dozzle

Dozzle is a lightweight web application that reads Docker container logs straight from the Docker socket and streams them to the browser as they arrive, with no log database in between. It offers filtering by container, service, level, and text, live search, multi-line viewing, and an agent mode that aggregates logs from several hosts behind one interface.

Developers and operators use it to tail the output of a failing deployment without opening an SSH session to the machine.

Running it on your own hardware keeps log output, which often contains sensitive values, inside your network, and since it tails files in place there is little beyond its small configuration to back up.