Firstly, click on the Launch instance
button to start the process of launching a new instance. And name that instance link Jenkins
.
Choose the Amazon Machine Image (AMI) that you want to use for your instance. This will typically be the operating system you want to use (Ubuntu).
Configure additional details such as the key pair settings and security group (Network) settings.
Review all settings and click the Launch
button to create an instance.
Once your instance is launched, it can be connect using a remote desktop or SSH client and start configuring software and applications.
Select the Jenkins
instance that you want to add Jenkins port to. Click on the Security
tab in the details pane at the bottom of the screen. Under Security details
menu click on the Security group
link.
Then under the Inbound rules
tab Click on the Edit inbound rules
button.
Inside Edit inbound rules
section Click on the Add rule
button to create a new inbound rule.
Select Custom TCP
rule from the Type
dropdown menu and enter 8080
as the Port range
. Then Select Anywhere
(or a specific IP range) as the Source
to allow access from any IP address or a specific range of IP addresses.
Finally, click on the Save rules
button to apply the changes.
First, update the default Ubuntu packages lists for upgrades with the following command:
sudo apt update
Then, run the following command to install JDK:
sudo apt install default-jdk -y
Now, we will install Jenkins itself. Issue the following four commands in sequence to initiate the installation from the Jenkins repository:
curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io.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-stable binary/ | sudo tee \
/etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt update
sudo apt install jenkins -y
When the Jenkins has been installed on the Ubuntu, next step is to make the Jenkins enable using the systemctl command:
sudo systemctl enable jenkins
Once that’s done, start the Jenkins service with the following command:
sudo systemctl start jenkins
To confirm its status, use:
sudo systemctl status jenkins
With Jenkins installed, we can proceed with adjusting the firewall settings. By default, Jenkins will run on port 8080.
In order to ensure that this port is accessible, we will need to configure the built-in Ubuntu firewall (ufw). To open the 8080 port and enable the firewall, use the following commands:
sudo ufw allow 8080
Then we will enable the UFW(Ubuntu Firewall) service:
sudo ufw enable
Once done, test whether the firewall is active using this command:
sudo ufw status
With the firewall configured, it’s time to set up Jenkins itself. Type in the IP of your EC2 along with the port number. The Jenkins setup wizard will open.
To check the initial password, use the cat command as indicated below:
sudo cat /var/lib/jenkins/secrets/initialAdminPassword
All Set! You can now start automating...