Issue

Looking for the location of the log for the Jenkins master docker container. Where is that by default?

Environment

• CloudBees CI (CloudBees Core) on traditional platforms - Client Master
• CloudBees CI (CloudBees Core) on traditional platforms - Operations Center
• CloudBees Jenkins Enterprise
• CloudBees Jenkins Enterprise - Managed Master
• CloudBees Jenkins Enterprise - Operations Center
• CloudBees Jenkins Platform - Client Master
• CloudBees Jenkins Platform - Operations Center
• CloudBees Jenkins Distribution
• Docker

Resolution

Logging is done to stdout so you can use your preferred logging system based on docker log driver. With default docker installation you can access logs with docker logs containerID, but can also send logs to syslog, logstash or compatible log systems.

References

• https://hub.docker.com/_/jenkins/ (Configure Logging)
• https://docs.docker.com/engine/admin/logging/overview/