softwares_installation/jenkins_master_slave at master · javaexpresschannel/softwares_installation · GitHub

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Steps to install masterNode
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sudo yum -y install openjdk-8-jdk
sudo yum -y install git
sudo yum -y install maven
sudo yum -y wget ( if needed)

Steps to install Jenkins
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sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
sudo yum -y install jenkins
sudo systemctl start jenkins
sudo systemctl enable --now jenkins

Steps to install Docker Amazon linux2

sudo yum update -y
sudo amazon-linux-extras install docker
sudo service docker start
sudo usermod -a -G docker ec2-user
sudo usermod -a -G docker jenkins
docker info


How to enable shell console for jenkins user ?
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Open a file using vi editor
sudo vi /etc/passwd
for jenkins user change to /bin/bash

How to give sudo permissions for jenkins user in Centos machine in Master Node?
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Open a file using vi editor
1) sudo vi /etc/sudoers
2) add below line in sudoers file
jenkins ALL=(ALL) NOPASSWD: ALL
3)sudo systemctl restart jenkins


Steps to install SlaveNode
------------------------------
Change to Root user
------------------------------
sudo su -
sudo yum -y install openjdk-8-jdk
sudo yum -y install maven ( if u install maven ,automatically java will install in machine)
sudo yum -y install git


How to create new user in Centos ?
------------------------------
sudo useradd jenkins
sudo su jenkins
cd
cd

How to give sudo permissions for jenkins user in Centos machine in Slave Node?
----------------------------------------------------------------
Open a file using vi editor
1) sudo vi /etc/sudoers
2) add below line in sudoers file
jenkins ALL=(ALL) NOPASSWD: ALL


How to check current working directory ?
----------------------------------------
pwd - /var/lib/jenkins ( Home directory for jenkins in slave node)
mkdir ~/.ssh
chmod 700 ~/.ssh
cd ~/.ssh
ssh-keygen -t rsa -C "The access key for Jenkins slaves"
Type enter button for every question so that it will create default private key(id_rsa) and public key(id_rsa.pub)
cat id_rsa.pub > ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
cat id_rsa ( Copy private key and paste in jenkins node slave)

How to setup slave node in jenkins ( Please refer videos in below url)
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https://www.youtube.com/watch?v=c-OZcpHiOPc&list=PL87padGs1bp9X95IxGQtFW44qWzywhbHM

Scripts to deploy website from GitHub
----------------------------------------
sudo yum install -y httpd
sudo systemctl restart httpd
sudo rm -rf /var/www/*
sudo rm -rf /var/www/html/.git
sudo git clone https://github.com/javaexpresschannel/staticwebsitehosting.git /var/www/html/