ansible-jenkins-linux-server

This is a project that uses Ansible to stop, start and restart a Springboot Application in a server from the Jenkinsfile when the app(app1), env(dev) and action(start) is specified

Start,stop and restart a service with ansible and jenkins on a linux server mkdir -p ansible/playbooks cd ansible/playbooks/ Create a file hosts.ini this is the inventory file for the environment servers: [dev] host1 ansible_host=192.168.1.10 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key host2 ansible_host=192.168.1.11 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key

[uav] host1 ansible_host=192.168.1.10 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key host2 ansible_host=192.168.1.11 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key

[prod] host1 ansible_host=192.168.1.10 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key host2 ansible_host=192.168.1.11 ansible_user=username ansible_ssh_private_key_file=/path/to/private_key

Create a start.yml file:

• name: Start SpringBoot Application hosts: "{{ env }}" become: yes tasks:
  • name: Start application systemd: name: "{{ application_name }}" state: started

Create a stop.yml file:

• name: Stop SpringBoot Application hosts: "{{ env }}" become: yes tasks:
  • name: Stop application systemd: name: "{{ application_name }}" state: stopped

Create a restart.yml file:

• name: Restart SpringBoot Application hosts: "{{ env }}" become: yes tasks:
  • name: Restart application systemd: name: "{{ application_name }}" state: restarted

Create Jenkins job Add your parameters: pipeline { agent any

parameters {
    choice(name: 'APPLICATION_NAME', choices: ['app1', 'app2', 'app3'], description: 'Select the SpringBoot application to manage')
    choice(name: 'ACTION', choices: ['start', 'stop', 'restart'], description: 'Select the action to perform on the application')
}

stages {
    stage('Manage SpringBoot Application') {
        steps {
            script {
                def env = 'dev' // Change this to 'uat' or 'prod' as needed
                def ansibleCommand = "ansible-playbook -i /path/to/ansible/hosts /path/to/ansible/playbooks/${params.ACTION}.yml -e \"env=${env} application_name=${params.APPLICATION_NAME}.service\""
                sh ansibleCommand
            }
        }
    }
}

}

This Jenkinsfile defines a pipeline that executes the Ansible playbook based on the selected application and action. The environment is hardcoded to 'dev' in this example, but you can modify it as needed for 'uat' or 'prod'. as

To do this on the terminal with a server in AWS Create an EC2 instance on AWS and copy the public ip Download the private key and know the path/to/private-key.pem mkdir ansible/playbooks/ in local computer cd ansible/playbooks/ Create the hosts.ini, start.yml, stop.yml and restart.yml In the hosts.ini:
[dev] host1 ansible_host=54.82.8.130 ansible_user=ubuntu ansible_ssh_private_key_file=/home/guddytech/Pictures/dev.pem

The ansible_host is the public ip of the instance and ansible_user is the username of the instance. Ansible_ssh_private_key_file is the path to the private key of the instance on your local machine Go to remote server and cd into /etc/systemd/System Vim myapp.service: [Unit] Description=My Spring Boot Application After=network.target

[Service] User=springboot ExecStart=/usr/bin/java -jar /path/to/myapp.jar SuccessExitStatus=143 Restart=always RestartSec=10

[Install] WantedBy=multi-user.target

Come back to local computer Sudo apt install ansible-core………..To install ansible ansible-playbook /path/to/ansible/playbooks/${ACTION}.yml -e "env=dev application_name=${APPLICATION_NAME}.service" Export APPLICATION_NAME=myapp echo $APPLICATION_NAME sudo ansible-playbook start.yml -i hosts.ini -e "env=dev application_name=${APPLICATION_NAME}.service" -vvv for debugging sudo ansible-playbook start.yml -i hosts.ini -e "env=dev application_name=${APPLICATION_NAME}.service" Select the env, action and app that you want to run it in the playbook