Setting up Jenkins on Amazon AWS - EC2 RHEL 9 (Red Hat Enterprise Linux)

Step#1: Creating EC2 RHEL Instance

1. Create AWS Account
2. Login to https://ap-southeast-2.console.aws.amazon.com/ec2/home?region=ap-southeast-2#Home (AWS Credentials)
3. Click on Launch Instance
1. Provide Name
2. Select RedHat
3. Select Amazon Machine Image (AMI)
4. Select Instance type(t2.micro - Default)
5. Select/Create Key pair name
1. Create KeyPar:
1. Key Pair Name: mykeypair
2. Key Pare Type: RSH
3. Private key file format: .pem
4. Save the private key securely in your local machine
6. Click on Edit button "Network settings"
1. Inbound Security Group Rules
1. Add Security Group
1. Type: Custom TCP
2. Port Range: 8080
3. Source Type: Any where
7. Click on 'Launch Instance"
4. EC2 Instance is created. Wait Until is started (Instance State: Running; Status check: 2/2 checks passed)
5. Get the "Public IPv4 address"

Step#2: Accessing Instance from Console

I Used MobaXTerm App to access the EC2 instance

1. Open CMD/ MobaXTerm (App)
2. Click on Session
3. Select SSH
1. Enter Remote Host Name/ID (Public IPv4 address), Port 22
2. Advanced SSH Settings: browser SSH Key (use private SSH key)
3. Ok

Step#3: Command to Enter on the EC2 Instance

1. sudo yum -y install wget
• This is to install wget on RHEL
2. sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
3. sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key
• These two lines are for downloading the stable version of jenkins from internet.
4. sudo yum install fontconfig java-17-openjdk
• We require java for the functioning of jenkins.
5. java -version
• Ensure Java installed properly
6. sudo yum install jenkins
• Install Jenkins
7. sudo systemctl daemon-reload
• Reload systemd manager configuration. This will rerun all generators
8. sudo systemctl status jenkins
• To check the status of the Jenkins service
9. sudo systemctl start jenkins
• To Start the Jenkins service
• Jenkins Password (This may also be found at: var/lib/jenkins/secrets/initialAdminPassword)
10. sudo systemctl status jenkins
• To check the status of the Jenkins service
11. sudo systemctl enable jenkins
• To enable the Jenkins service to start at boot with the command

Step#4: Launching Jenkins

1. Open Browser - http://<Public_IP>:8080 --> Public IP can be found at Step#1.5
2. Enter Jenkins Password --> Jenkins Password can be found at Step#3.9.2 or var/lib/jenkins/secrets/initialAdminPassword
3. Create admin user - Save & Next
4. Jenkins URL will be shown (you can change if you want)
5. Save and Finish