I installed jenkins by downloading jenkins-2.2.pkg. After the installation is complete, Chrome auto-connected to http://localhost:8080/login?from=%2F and I see
ref:http://www.cimgf.com/2015/05/26/setting-up-jenkins-ci-on-a-mac-2/
Make the Jenkins user an admin: sudo dseditgroup -o edit -a jenkins -t user admin
Add the Jenkins user to the developer group: sudo dscl . append /Groups/_developer GroupMembership jenkins
Make the Jenkins user automatically login when the computer is restarted: