CloudPi/provision-storage.yml at main · DavesCodeMusings/CloudPi · GitHub

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---
- name: Provision external storage device for logical volumes (LVM)
  hosts: localhost
  connection: local
  become: true

  vars:
    device: /dev/sda
    confirm_device: /dev/sdXX
    partition: 1
    volume_group: vg1
    logical_volumes:
    - name: vol01
      mount_point: /opt/docker
      size: 5G
    - name: vol02
      mount_point: /var/lib/docker
      size: 10G
    - name: vol03
      mount_point: /srv
      size: 100G

  tasks:
  # Verify device against device_confirm variable as a sort of failsafe.
  - name: Verifying device
    community.general.parted:
      device: "{{ device }}"
      unit: MiB
    register: device_info
    failed_when: not device_info.disk.dev == confirm_device

  - name: Installing LVM2
    apt:
      name: lvm2
      state: latest
      update_cache: yes

  # Use the whole device as a single LVM partition in a GUID partition table.
  - name: Repartitioning device
    community.general.parted:
      device: "{{ device }}"
      label: gpt
      number: "{{ partition }}"
      flags: [ lvm ]
      state: present

  - name: Creating volume group
    community.general.lvg:
      vg: "{{ volume_group }}"
      pvs: "{{ device }}{{ partition }}"

  - name: Creating volumes
    community.general.lvol:
      vg: "{{ volume_group }}"
      lv: "{{ item.name }}"
      size: "{{ item.size }}"
    with_items:
    - "{{ logical_volumes }}"

  - name: Creating filesystems
    filesystem:
      fstype: ext4
      dev: "/dev/{{ volume_group }}/{{ item.name }}"
    with_items:
    - "{{ logical_volumes }}"

  - name: Creating mount-point directories
    file:
      path: "{{ item.mount_point }}"
      state: directory
    with_items:
    - "{{ logical_volumes }}"

  # The mount module also adds filesystems to /etc/fstab.
  - name: Mounting filesystems
    mount:
      path: "{{ item.mount_point }}"
      src: "/dev/{{ volume_group }}/{{ item.name }}"
      fstype: ext4
      opts: defaults,noatime
      state: mounted
    with_items:
    - "{{ logical_volumes }}"

# Reference: https://www.redhat.com/sysadmin/automating-logical-volume-manager