Jenkins Setup

setup.sh

#!/bin/bash
JENKINS_USER=jenkins
JENKINS_URL=https://example.com/jenkins
WORKER_NAME=jenkins-docker01

yum update -y && yum install -y java-1.8.0-openjdk

mkdir /usr/share/jenkins
chmod 755 /usr/share/jenkins

cat >> /usr/lib/systemd/system/jenkins.service <<EOF
[Unit]
Description=Jenkins Slave
Requires=network.target
After=multi-user.target

[Service]
PermissionsStartOnly=true
Environment=URL=${JENKINS_URL}
Environment=AGENT_NAME=${WORKER_NAME}
User=${JENKINS_USER}

Type=simple
ExecStartPre=/usr/bin/curl -o /usr/share/jenkins/slave.jar \${URL}/jnlpJars/slave.jar
ExecStart=/usr/bin/java -jar /usr/share/jenkins/slave.jar -jnlpUrl \${URL}/computer/\${AGENT_NAME}/slave-agent.jnlp -workDir "/home/jenkins"
Restart=always
RestartSec=15
StartLimitInterval=0

[Install]
WantedBy=multi-user.target

EOF

systemctl daemon-reload
systemctl start jenkins
systemctl enable jenkins