• Developer write a code and push the code in github. Github is integrate with Jenkins. Jenkins job run compiling & building. after compiling jenkins its created a file and jenkins pushed this file in Ansible. Jenkis triggered a playbook written in Ansible. In this playbook I write a code for deploy a software on Web-server. so, Developer do any changes in code it directly change in web-server.

https://medium.com/@rutikdevops/complete-devops-cicd-project-18faf4b5f73d

• Create 4 ec2 instance name as:- (AWS Linux-2, t2 micro)

1. Jenkins-Server
2. Ansible-Server
3. Web-Server
4. Developer

ec2-user
sudo su
yum update -y
hostnamectl set-hostname jenkins
bash

• Java installation on Jenkins server:-

yum install java* -y
java --version
alternatives --config java               ## Using this command you can choose any version of Java

• Jenkins installation on Jenkins server:-

wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key
yum install jenkins -y
systemctl enable jenkins.service
systemctl start jenkins.service
systemctl status jenkins.service

• set root passwd

passwd root     

• Now, enter passwd 2 times

vim /etc/ssh/sshd_config

• Do this changes in vi editor:- ** #PermitRootLogin yes (remove #) ** PasswordAuthentication no (replace no to yes) Now run this command:-

systemctl restart sshd

• git installation on Jenkins server:-

yum install git -y

• Copy public ip of jenkins server and paste it in new tab with port no.8080

• copy this path and paste in terminal with "cat" command

cat /var/lib/jenkins/secrets/initialAdminPassword

• Now copy & paste this passwd in jenkins. so, jenkins is ready.

ec2-user
sudo su
yum update -y
hostnamectl set-hostname Ansible
bash

• Ansible installation on Ansible server:-

yum install ansible -y
amazon-linux-extras install ansible2 -y
ansible --version

• Now go to inventory file and add entry of web server

vim /etc/ansible/hosts

• In that inventory file you can simply add

[web]
(paste here web-servers private ip)

ec2-user
sudo su
yum update -y
hostnamectl set-hostname web-server
bash

• httpd Apache installation on web-server:-

yum install httpd -y
systemctl enable httpd
systemctl start httpd

• Go to ansible server and type command

ssh-keygen      ##(and press enter 2 to 3 times)

ssh-copy-id -i root@(paste web-server private ip here)

• Go to web-server and type command

passwd root    ##(Now enter passwd 2 times)

vim /etc/ssh/sshd_config

• Do this changes in vi editor:- ** #PermitRootLogin yes (remove #) ** PasswordAuthentication no (replace no to yes)
• Now run this command:-

systemctl restart sshd

• Go to ansible server and type command

ssh-copy-id -i root@(paste web-server private ip here)

enter passwd

root@(paste web-server private ip here)

exit       ##for go to web-server to ansible

• Now, your Passwordless connection between Ansible & Web server is successfull

• Follow same steps from point no. 4 for jenkins to ansible connection

• create a directory in ansible

mkdir /sourcecode

• Go to sourcecode directory

cd /sourcecode

• Now, create a playbook name as,

playbook.yml

• In playbook.yml file type,

- hosts: all
  tasks:
    - copy:
         src: /opt/index.html
         dest: /var/www/html

• Github>> Create repo>> DevOps-Project-1(repo name)
• Create new file>>index.html(file name)
• In this file write,

My Name is Rutik

• Github>> Settings>> Webhooks
• Payload URL:- (paste jenkins URL here)
• content type:- Application/json
• Secret:- Go to jenkins>>configure>>API Token>>add token>>copy token>>apply>>save ===> Paste this token
• Add Webhook>>click on page refresh

• Manage_jenkins>> Plugins>> available plugin>> publish over SSH>> restart jenkins

• New_Item>> Project-1(Item_name)>> Freestyle_Project

• Source code mangmt>> copy code URL from github

• Manage_jenkins>> Configure_system

• Project-1>>configure>>build>>Send files or execute commands over SSH

• Exec command:-

rsync -avh /var/lib/jenkins/workspace/project-1/*.html root@(paste ansible private ip here):/opt/index.html

• Manage_jenkins>> Configure_system

• Project-1>>configure>>Post-build Actions>>Send build artifacts over SSH

• Exec command:-

ansible-playbook /sourcecode/playbook.yml

• copy public ip of web-server and paste it in new tab

• connect developer server with putty

yum install git -y

git clone https://github.com/rutikdevops/DevOps-Project-1.git

cd DevOps-Project-1

vim index.html

Do some changes in vi editor

My name is Rutik welcome to devops project

git commit -m "f1" index.html

git push origin master

• Technical Cloud Knowledge - YouTube https://youtu.be/YsVJd0FPoYQ