Jenkins

Install prerequisites:

yum install java-1.8.0-openjdk-headless dejavu-sans-fonts fontconfig

Install Jenkins stable repo:

cd /etc/yum.repos.d/
curl -O http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo
rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

Install Jenkins:

yum install jenkins

Set Jenkins service to start at startup:

systemctl enable jenkins.service

Start Jenkins service:

systemctl start jenkins.service

Verify that Jenkins is listening on port 8080:

ss -ln | grep 8080

Note that even though Jenkins may be listening on 8080, don't forget to open your firewall appropriately.