This is a Demo Ansible playbook script to pull the latest changes and install new dependences with PM2 start and stop.

AnsiblePlaybookDemo

---
- name: ANSIBLE - Configure Node server
  hosts: SampleApp-Server
  become: true
  become_method: sudo
  become_user: nodejs

  vars:
    node_version: 6.9.1

  tasks:
    - name: SERVER | Update the software package repository
      yum:
        name: "*"
        update_cache: yes

    - name: SERVER | Ensure repo is up-to-date
      git:
        repo: "https://github.com/prashant-bhatasana/Node.git"
        dest: "/home/nodejs/Node/"
        depth: 1
        force: yes
        accept_hostkey: yes
        update: yes

    - name: SERVER | Stop pm2 service
      shell: "cd /home/nodejs/Node && source ~/.nvm/nvm.sh && pm2 stop 1"

    - name: SERVER | Install node dependencies
      shell: cd /home/nodejs/Node && source ~/.nvm/nvm.sh &&  npm install

    - name: SERVER | Start pm2 service
      shell: "cd /home/nodejs/Node && source ~/.nvm/nvm.sh && pm2 start 1"

SampleApp-Server

[demo-server-1]
10.86.485.123 ansible_ssh_user=root