jenkins_slave_connect.sh

function input_parameters() {
    echo "
    FPT-Software DevOps
    Connection to Jenkins server in-progress...
    _________________________
    ____________________
    ________________
    ___________
    ______
    __
    _
    ............................
    Please fill your node name :"
    read nodenameID

    # echo "What is your OS: ubuntu or centos:"
    # read os_type

    echo "Please fill your secret key :"
    read secretID
    echo "Please choose your remote directory :Press "Enter" to keep default directory : "/home/jenkins""
    read directoryID

    DIRECTORYID=${directoryID:-"/home/jenkins"}
    mkdir $DIRECTORYID ||
    export DIRECTORYID=$DIRECTORYID &&
    cd $DIRECTORYID
}


function centos7_install_jenkins_slave {
    
    # Install Java
    java -version
    if [ $? -eq 0 ]; then
        echo "Java installed"
    else
        echo "Install Java version 1.8"
        yum install -y java-1.8.0-openjdk
    fi

    cd $DIRECTORYID && curl -Ok https://jenkins.learn.akawork.io/jnlpJars/agent.jar

    cat > $DIRECTORYID/java.sh << EOF
#!/bin/bash
cd $DIRECTORYID
java -jar agent.jar -jnlpUrl https://jenkins.learn.akawork.io/computer/$nodenameID/slave-agent.jnlp -secret $secretID -workDir "$DIRECTORYID"
EOF

    chmod +x $DIRECTORYID/java.sh
cat > /etc/systemd/system/jenkins-agent.service << EOF
[Unit]
Description=java web service
After=network.target
[Service]

Type=simple
ExecStart=$DIRECTORYID/java.sh

User=root
Group=root

[Install]
WantedBy=multi-user.target
EOF

    systemctl daemon-reload &&
    systemctl enable slave.service &&
    systemctl start slave.service ||

    echo "Added slave service in system.
          slave.service is started.
          Connection to Jenkins server is successful!"
}


function main {
    input_parameters
    centos7_install_jenkins_slave
}

# Run main script
main