uan_disk_configThe uan_disk_config role configures swap and scratch disk partitions on UAN
nodes.
There must be disk devices found on the UAN node by the device_filter module
or this role will exit with failure. This condition can be ignored by setting
uan_require_disk to false. See variable definitions below.
See the library/device_filter.py file for more information on this module.
The device that is found will be unmounted if mounted and a swap partition will be created on the first half of the disk, and a scratch partition on the second half. ext4 filesystems are created on each partition.
Available variables are listed below, along with default values (see defaults/main.yml):
uan_require_diskBoolean to determine if this role continues to setup disk if no disks were found
by the device filter. Set to true to exit with error when no disks are found.
Example:
uan_require_disk: false
uan_device_name_filterRegular expression of disk device name for this role to filter.
Input to the device_filter module.
Example:
uan_device_name_filter: "^sd[a-f]$"
uan_device_host_filterRegular expression of host for this role to filter.
Input to the device_filter module.
Example:
uan_device_host_filter: "
uan_device_model_filterRegular expression of device model for this role to filter.
Input to the device_filter module.
Example:
uan_device_model_filter: "
uan_device_vendor_filterRegular expression of disk vendor for this role to filter.
Input to the device_filter module.
Example:
uan_device_vendor_filter: "
uan_device_size_filterRegular expression of disk size for this role to filter.
Input to the device_filter module.
Example:
uan_device_size_filter: "<1TB"
uan_swapFilesystem location to mount the swap partition.
Example:
uan_swap: "/swap"
uan_scratchFilesystem location to mount the scratch partition.
Example:
uan_scratch: "/scratch"
swap_fileName of the swapfile to create. Full path is <uan_swap>/<swapfile>.
Example:
swap_file: "swapfile"
swap_dd_commanddd command to create the swapfile.
Example:
swap_dd_command: "/usr/bin/dd if=/dev/zero of={{ uan_swap }}/{{ swap_file }} bs=1GB count=10"
swap_swappinessValue to set the swapiness in sysctl.
Example:
swap_swappiness: "10"
library/device_filter.py is required to find eligible disk devices.
- hosts: Application_UAN
roles:
- { role: uan_disk_config }
This role is included in the UAN site.yml play.