deploy-mongo.yml

---
- hosts: db 
  sudo: yes
  roles:
      - mongodb_server

  tasks:

      - name: Install the pre-requisites
        apt: name={{ item }} update_cache=yes
        with_items:
            - lvm2

      - name: Create a vg named vgdata with /dev/sdb
        lvg: vg=vgdata pvs=/dev/sdb

      - name: Create a lv named lvdata01 in vgdata
        lvol: vg=vgdata lv=lvdata01 size=80%VG

      - name: Create an ext4 filesystem in /dev/mapper/vgdata-lvdata01
        filesystem: fstype=ext4 dev=/dev/mapper/vgdata-lvdata01

      - name: Make sure mongod is stopped
        service: name=mongod state=stopped

      - name: Mount the directory
        mount: name=/var/lib/mongodb src=/dev/mapper/vgdata-lvdata01 fstype=ext4 state=mounted

      - name: Re-establish permissions for the directory
        file: path=/var/lib/mongodb owner=mongodb group=nogroup state=directory recurse=yes

      - name: Make sure mongod is started
        service: name=mongod state=started