What is Jenkins?
Jenkins is a free and open-source automation server. It helps automate the parts of software development related to building, testing, and deploying, facilitating continuous integration and continuous delivery.
How to Reset Forgotten Jenkins Admin User's Password
The simplest solution is to altogether disable security in /var/lib/jenkins/config.xml file or User home directory
Connect with ssh to your Jenkins server.
Let's see the config.xml file
Important: You will see a config.xml file, you have to make a copy of a Jenkins config file.
Make a backup copy of a Jenkins config file.
Open the config file .jenkins/config.xml to disable the security
Modify the value between the <useSecurity> tags and set the value to false
Already here useSecurity TRUE
<useSecurity>true</useSecurity>
Will be changed to "false"
<useSecurity>false</useSecurity> Save the changes
Restart the Jenkins Service
brew services restart jenkins-lts
After restarting you can check the Jenkins service is running with brew services info jenkins-lts command
Go to the Jenkins UI, won’t be asked for any credentials this time because you will be logged in as an anonymous user to the Jenkins.
First, you check which user login the Jenkins there is no user name. So if you reset your password.
Navigate to "Manage Jenkins" -> "Security" -> "Configure Global Security" -> "Authentication"
Select the "Security Realm" (e.g. "Jenkins’ own user database") and click on "Save"
Go to "Dashboard"->"People" -> Click on a username for which you want to change the password (e.g. admin) -> "Configure" -> Enter a new password in the "Password" and "Confirm password" fields and click on "Save"
Finally, change a password
Finally, Check the Jenkins login User
