Devops Project-2 -Create build artifacts using Jenkins and deploy those using Ansible by Raj Gupta

So CI(build) part are done by using Jenkins but CD(deploy) part are done by using Ansible

Create 3 REHL ec2 server (Jenkins_Server ,Tomcat_Server , Ansible_Server)

Install the ansible on Ansible server

Now make the password less communication between Tomcat_Server and Ansible_Server for this create user let say ansadmin in both with this user both server communicate without any password

Now logging into ansible server and create any user say ansadmin with this user we are going to run playbook

[root@ip-172-31-82-207 ~]# useradd ansadmin

[root@ip-172-31-82-207 ~]# passwd ansadmin     (set the password for this user say raj123456 to use in Jenkins)

Now add below client ip(tomcat server ip) in host file of master server(ansible server) to run ansible playbook on client.

[ansadmin@ip-172-31-85-7 ~]$ sudo vi /etc/ansible/hosts

[webservers]

172.31.85.242

Now to check ansible is working run below command

[ansadmin@ip-172-31-85-7 ~]$ ansible all -m ping

172.31.89.37 | SUCCESS => {

    "changed": false,

    "ping": "pong"

}

create a copyfile.yml on Ansible server under /opt/playbooks

[ansadmin@ip-172-31-85-7 ~]$ cd /opt

[ansadmin@ip-172-31-85-7 opt]$ sudo mkdir playbooks

[ansadmin@ip-172-31-85-7 opt]$ cd playbooks/

[ansadmin@ip-172-31-85-7 playbooks]$ sudo vi copyfile.yml

- hosts: all

  tasks:

  - name: Ansible copy file to remote server

    copy:

      src: /opt/playbooks/webapp/target/webapp.war

      dest: /opt/app/apache-tomcat-8.5.37/webapps

[ansadmin@ip-172-31-85-7 playbooks]$ cat copyfile.yml

Now go to Jenkins and install plugging publish over ssh after installation do the configuration in Jenkins for this plugging

Manage Jenkins-àConfigure System-à Publish over SSH-à then click on ADD and fill the below

SSH server name:- you can give any name as per your choice say here ansible

Hostname:- here you give private ip address of ansible server.

Username:- you give the username whatever you created on ansible server to run playbook like in ourcase ansadmin

Then click on advance button and click on Use password authentication, or use a different key then give the password of user you have created in ansible server for ansadmin like in our case raj123456

Passphrase / Password:-    raj123456

Now logging into ansible server and in the below file change the yellow part.

[root@ip-172-31-86-168 ~]# vi /etc/ssh/sshd_config

# To disable tunneled clear text passwords, change to no here!

PasswordAuthentication yes

#PermitEmptyPasswords no

#PasswordAuthentication no

[root@ip-172-31-86-168 ~]# service sshd restart

Now in the Jenkins click on bottom Test configuration if you get Success then our setup are fine.

Now add the below line So that it will work through ansible playbooks.

• Source fiels: webapp/target/*.war
• Remote directory: //opt//playbooks

ansible-playbook /opt/playbooks/copywarfile.yml

Run the below command in ansible server

[root@ip-172-31-30-43 playbooks]# chown -R ansadmin:ansadmin /opt/playbooks/

Do the below two things in tomcat server if you get the error

[root@ip-172-31-42-77 ~]# mv app /opt/      -----move tomcat from app folder to opt folder

[ansadmin@ip-172-31-42-77 opt]$ chmod 755 app/apache-tomcat-8.5.37/webapps      ----give other permission to webapps folder to execute

After that restart the tomcat

[root@ip-172-31-42-77 bin]# ./shutdown.sh

[root@ip-172-31-42-77 bin]# ./startup.sh