Installing Jenkins On AWS

EC2 Instance §

• Instance Name: Jenkins
• AMI: Ubuntu Server 22.04 LTS
• Instance Type: t2.micro
• Key Pair: daro.io
• Public IP: Enabled
• Security Group: allow inbound SSH(22), Jenkins(8080)
• User Data:

#!/bin/bash
 
sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
  https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
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-get update -y
sudo apt-get install jenkins -y
sudo systemctl enable jenkins

Jenkins Install Document

Getting “Initial Admin Password”
We input the “Initial Admin Password”
We install the suggested plugins
Creating our first user

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%%Add credentials or ssh key to Jenkins to connect to my GitHub account. In our assignments we used public Repos so was not needed%%

Create credentials §

Need to setup ssh credentials to be able to connect to salve nodes (EC2s) using ssh connection .pem key

Steps:

1. I navigate to Manage Jenkins > Credentials > System > Global credentials (unrestricted)

2. Click button “Add Credentials”
   

3. Select SSH Username with private key.

4. Enter a name (ID) for the credentials.

5. In the Username field, enter the username of the SSH user ubuntu on the slave node.

6. In the Private Key field, enter the contents of the .pem key file. You can copy and paste the contents of the file, or you can upload the file.

7. Click Create to create the credentials.
   

Success

Setting up slaves §

Manage Jenkins > Security Make sure we select Random and save

To add agent §

Manage Jenkins > Nodes Click button “New Node”

In the configuration, I focus on the following settings:

• Remote Root Directory: The workspace where Jenkins executes builds.
• Launch Method:
  • Host: The private IP of the EC2 instance.
  • Credentials: previously created
  • Host Key Verification Strategy: Set to ‘Non-verifying Verification Strategy.‘”
    

I have installed Java on ‘Slave1’ as it is a prerequisite for operation.
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Now we have an In sync Slave1 Agent

Success