This article is valid for Smart ID 21.04 and later.
This article describes how to configure log4j2 for Smart ID Self-Service.
<SMARTIDHOME>
In this article, <SMARTIDHOME> refers to /home/nexus, but this can be different depending on the setup.
log4j2
The server side logging of Self-Service uses log4j2, you can configure it with <SMARTIDHOME>/docker/compose/selfservice/config/log4j2.xml.
See the log4j2 documentation for details.
JSON template
You can enable the json template in the <SMARTIDHOME>/docker/compose/selfservice/config/log4j2.xml by switching from the PatternLayout to JsonTemplateLayout.
You can then modify the json template in <SMARTIDHOME>/docker/compose/selfservice/config/log4j2JsonLayout.json.
See the log4j2 json template documentation for details.