[LOG4J2-1724] Using variables in GelfLayout's additional fields at runtime

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.2, 2.7
• Fix Version/s: 2.8
• Component/s: Layouts
• Assignee: Mikael Ståldal
• Reporter: Alexander K.
• Created: 06/Dec/16 08:16
• Updated: 10/Jan/17 13:48
• Resolved: 05/Jan/17 18:29

Description

Hello,
I would like to suggest the following improvements for GelfLayout:
1. Using variables in additional fields at runtime. For example resolving "value": "$${ctx:key}" at runtime as it is done in other places. Thus, custom lookups will be available as well.
2. Having an indicator includeThreadContext to control whether the contents of the ThreadContext should be included. Sometimes it is usable to include only some of its values and then it will be available using the first suggested improvement by specific variable resolution.
3. Resolving HOST attribute in case it is not provided by using for example InetAddress.getLocalHost().getHostName().

Regards,
Alexander

Issue Links

• depends upon: LOG4J2-1762 Add Builder to GelfLayout