Send structured logs to Logstash
Configure the installed Logger handler and verify delivery.
The supplied erlang.config.in contains a logstasher_h Logger handler and a logstasher application section. Copy the relevant entries into your deployment's erlang.config, preserving its other Logger handlers.
Choose the receiver's host, port and supported transport (tcp, udp, or console) in the logstasher section. Enable the handler in the kernel Logger configuration. Use the installed sample for the handler's full formatter and level settings, rather than mixing fragments from old releases.
After applying the configuration through the deployment procedure, emit a harmless event in the remote shell:
logger:notice(#{text => <<"Log delivery test">>, in => documentation_check}).
Find that event in the receiver and check its timestamp, level and structured fields. Press Ctrl-C twice to detach. Do not use the nonexistent logger:error_msg/2 API.
Check behaviour when the receiver is unavailable and when buffers fill. UDP has no delivery confirmation; sending a test event is not proof the collector stored it. Keep a local diagnostic route and exclude passwords, tokens and personal message bodies from logs.