Configure EC2 instance to setup the CI pipeline

To setup Docker, Jenkins and SonarQube (in next section) server, create a t2.large Ubuntu EC2 instance on AWS and use the below startup shell script to install the pre-requisites:

#!/bin/bash

sudo apt update

#Install JDK
sudo apt install openjdk-17-jre -y

#Install Jenkins
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 -y

# Install Docker
sudo apt install docker.io -y

# Grant Jenkins and Ubuntu user permission to access Docker daemon
sudo usermod -aG docker jenkins
sudo usermod -aG docker ubuntu
sudo systemctl restart docker

EC2 instance configuration to setup the CI server

Adding the startup script to install the prerequisites

Create a Security Group and allow the below ports under Inbound rules

Type	Port	Used For
SSH	22	SSH to the instance
TCP	8010	Application port
TCP	8080	Jenkins port
TCP	9000	SonarQube port

Setting inbound rules for the instance

After connecting to the EC2 instance verify whether JDK, Docker and Jenkins is properly installed using the following commands:

# Check java version
java --version

# Check Docker version
docker --version

# Check whether Jenkins is running
ps -ef | grep jenkins