Linux Storage Role

This role allows users to configure local storage with minimal input.

As of now, the role supports managing file systems and mount entries on

  • unpartitioned disks

  • lvm (unpartitioned whole-disk physical volumes only)

Role Variables

storage_pools

The storage_pools variable is a list of pools to manage. Each pool contains a nested list of volume dicts as described below, as well as the following keys:

name

This specifies the name of the pool to manage/create as a string. (One example of a pool is an LVM volume group.)

type

This specifies the type of pool to manage. Valid values for type: lvm.

disks

A list which specifies the set of disks to use as backing storage for the pool. Supported identifiers include: device node (like /dev/sda or /dev/mapper/mpathb), device node basename (like sda or mpathb), /dev/disk/ symlink (like /dev/disk/by-id/wwn-0x5000c5005bc37f3f).

volumes

This is a list of volumes that belong to the current pool. It follows the same pattern as the storage_volumes variable, explained below.

storage_volumes

The storage_volumes variable is a list of volumes to manage. Each volume has the following variables:

name

This specifies the name of the volume.

type

This specifies the type of volume on which the file system will reside. Valid values for type: lvm or disk. The default is determined according to the OS and release (currently lvm).

disks

This specifies the set of disks to use as backing storage for the file system. This is currently only relevant for volumes of type disk, where the list must contain only a single item.

size

The size specifies the size of the file system. The format for this is intended to be human-readable, e.g.: "10g", "50 GiB".

fs_type

This indicates the desired file system type to use, e.g.: "xfs", "ext4", "swap". The default is determined according to the OS and release (currently xfs for all the supported systems).

fs_label

The fs_label is a string to be used for a file system label.

fs_create_options

The fs_create_options specifies custom arguments to mkfs as a string.

mount_point

The mount_point specifies the directory on which the file system will be mounted.

mount_options

The mount_options specifies custom mount options as a string, e.g.: ro.

Example Playbook

- hosts: all

  roles:
    - name: rhel-system-roles.storage
      storage_pools:
        - name: app
          disks:
            - sdb
            - sdc
          volumes:
            - name: shared
              size: "100 GiB"
              mount_point: "/mnt/app/shared"
              #fs_type: xfs
              state: present
            - name: users
              size: "400g"
              fs_type: ext4
              mount_point: "/mnt/app/users"
      storage_volumes:
        - name: images
          type: disk
          disks: ["mpathc"]
          mount_point: /opt/images
          fs_label: images

License

MIT