Environment variables in Jenkins

Question

Where do the environment variables under Jenkins ( manage jenkins -> system information ) come from?

I checked /etc/init.d/tomcat5, /usr/bin/dtomcat5, /usr/bin/tomcat5, /etc/sysconfig/tomcat5 and /etc/profile but do not see any such variables there specially the ones related to Oracle (Base, Home, Ld_lib, path, etc.). Tomcat's bashrc has some oracle related variables which I commented out but I still see the same in the jenkins system info page. Any directions?

Answer 1

The environment variables displayed in Jenkins (Manage Jenkins -> System information) are inherited from the system (i.e. inherited environment variables)

If you run env command in a shell you should see the same environment variables as Jenkins shows.

These variables are either set by the shell/system or by you in ~/.bashrc, ~/.bash_profile.

There are also environment variables set by Jenkins when a job executes, but these are not displayed in the System Information.

Answer 2

What ultimately worked for me was the following steps:

1. Configure the Environment Injector Plugin
2. Goto to the /job/<project>/configure screen
3. In "Build Environment" section check "Inject environment variables to the build process"
4. In "Properties Content" specified: TZ=America/New_York

Answer 3

The quick and dirty way, you can view the available environment variables from the below link.

http://localhost:8080/env-vars.html/

Just replace localhost with your Jenkins hostname, if its different