Install Jenkins on Ubuntu server ?
1. Create Ubuntu 22.04 EC2 instances in any region.
2. Connect the server with Putty
3. Verify JDK versions in Ubuntu instance
$ sudo apt search jdk
4. Add apt repository for openjdk
$ sudo add-apt-repository ppa:openjdk-r/ppa
5. update ubuntu OS
$ sudo apt update
6. Install OpenJDK 11
$ sudo apt install openjdk-11-jdk
7. Install Jenkins on Ubuntu from jenkins.to website
https://www.jenkins.io/doc/book/installing/linux/
curl -fsSL https://pkg.jenkins.io/debian/jenkins.io-2023.key | sudo tee \
/usr/share/keyrings/jenkins-keyring.asc > /dev/null
echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] \
https://pkg.jenkins.io/debian binary/ | sudo tee \
/etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt-get update
sudo apt-get install jenkins
8. Check the status of jenkins
$ systemctl status jenkins
9. Check if the service is enabled or not ?
$ systemctl is-enabled jenkins
10. Check port configuration in Jenkins server?
$ ps -ef | grep jenkins
11. Check whether the port 8080 is opened or not?
$ss -tunpl | grep 8080
12. How to connect jenkins server from browser?
www.pubip:8080
13. How to login for the first time in the jenkins web console with a temp password?
Note: temp password location is "/var/lib/jenkins/secrets/initialAdminPassword" by default
From putty: (you can run the below command to get temp password)
cat /var/lib/jenkins/secrets/initialAdminPassword
