jenkins-jobs update ci-management/jjb:icn/ci/jjb icn-master-verify
```
-A sample of jjb config file
+A sample of jjb config file located at `~/.config/jenkins_jobs/jenkins_jobs.ini`
```
[job_builder]
ignore_cache=True
password=admin
url=http://localhost:8080
```
+
+4. There is [a bug](https://issues.jenkins-ci.org/browse/JENKINS-28466) of jenkins
+which makes some environemtn variables not usable. To fix the bug, we need 'Manage Jenkins' > 'Configure System' > 'click save without any changes'.