docker_jenkins

sudo yum install java-1.8.0 -y
sudo yum remove java-1.7.0-openjdk -y

Update the packages on your instance

[ec2-user ~]$ sudo yum update -y

Install Docker

[ec2-user ~]$ sudo yum install docker -y

Start the Docker Service

[ec2-user ~]$ sudo service docker start

Add the ec2-user to the docker group so you can execute Docker commands without using sudo.

[ec2-user ~]$ sudo usermod -a -G docker ec2-user