mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-23 21:30:40 +00:00
874 lines
36 KiB
Python
874 lines
36 KiB
Python
|
#!/usr/bin/python
|
||
|
|
|
||
|
|
#
|
||
|
|
# Copyright (c) 2018 Red Hat, Inc.
|
||
|
|
#
|
||
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
||
|
|
#
|
||
|
|
|
||
|
|
from __future__ import absolute_import, division, print_function
|
||
|
|
__metaclass__ = type
|
||
|
|
|
||
|
|
|
||
|
|
ANSIBLE_METADATA = {
|
||
|
|
'metadata_version': '1.1',
|
||
|
|
'status': ['preview'],
|
||
|
|
'supported_by': 'community'
|
||
|
|
}
|
||
|
|
|
||
|
|
DOCUMENTATION = '''
|
||
|
|
---
|
||
|
|
author:
|
||
|
|
- "Bryan Gurney (@bgurney-rh)"
|
||
|
|
|
||
|
|
module: vdo
|
||
|
|
|
||
|
|
short_description: Module to control VDO
|
||
|
|
|
||
|
|
version_added: "2.5"
|
||
|
|
|
||
|
|
description:
|
||
|
|
- This module controls the VDO dedupe and compression device.
|
||
|
|
VDO, or Virtual Data Optimizer, is a device-mapper target that
|
||
|
|
provides inline block-level deduplication, compression, and
|
||
|
|
thin provisioning capabilities to primary storage.
|
||
|
|
|
||
|
|
options:
|
||
|
|
name:
|
||
|
|
description:
|
||
|
|
- The name of the VDO volume.
|
||
|
|
required: true
|
||
|
|
state:
|
||
|
|
choices: [ "present", "absent" ]
|
||
|
|
description:
|
||
|
|
- Whether this VDO volume should be "present" or "absent".
|
||
|
|
If a "present" VDO volume does not exist, it will be
|
||
|
|
created. If a "present" VDO volume already exists, it
|
||
|
|
will be modified, by updating the configuration, which
|
||
|
|
will take effect when the VDO volume is restarted.
|
||
|
|
Not all parameters of an existing VDO volume can be
|
||
|
|
modified; the "statusparamkeys" list contains the
|
||
|
|
parameters that can be modified after creation. If an
|
||
|
|
"absent" VDO volume does not exist, it will not be
|
||
|
|
removed.
|
||
|
|
required: true
|
||
|
|
activated:
|
||
|
|
choices: [ "yes", "no" ]
|
||
|
|
description:
|
||
|
|
- The "activate" status for a VDO volume. If this is set
|
||
|
|
to "no", the VDO volume cannot be started, and it will
|
||
|
|
not start on system startup. However, on initial
|
||
|
|
creation, a VDO volume with "activated" set to "off"
|
||
|
|
will be running, until stopped. This is the default
|
||
|
|
behavior of the "vdo create" command; it provides the
|
||
|
|
user an opportunity to write a base amount of metadata
|
||
|
|
(filesystem, LVM headers, etc.) to the VDO volume prior
|
||
|
|
to stopping the volume, and leaving it deactivated
|
||
|
|
until ready to use.
|
||
|
|
|
||
|
|
required: false
|
||
|
|
running:
|
||
|
|
choices: [ "yes", "no" ]
|
||
|
|
description:
|
||
|
|
- Whether this VDO volume is running. A VDO volume must
|
||
|
|
be activated in order to be started.
|
||
|
|
required: false
|
||
|
|
device:
|
||
|
|
description:
|
||
|
|
- The full path of the device to use for VDO storage.
|
||
|
|
This is required if "state" is "present".
|
||
|
|
required: false
|
||
|
|
logicalsize:
|
||
|
|
description:
|
||
|
|
- The logical size of the VDO volume (in megabytes, or
|
||
|
|
LVM suffix format). If not specified for a new volume,
|
||
|
|
this defaults to the same size as the underlying storage
|
||
|
|
device, which is specified in the 'device' parameter.
|
||
|
|
Existing volumes will maintain their size if the
|
||
|
|
logicalsize parameter is not specified, or is smaller
|
||
|
|
than or identical to the current size. If the specified
|
||
|
|
size is larger than the current size, a growlogical
|
||
|
|
operation will be performed.
|
||
|
|
required: false
|
||
|
|
deduplication:
|
||
|
|
choices: [ "enabled", "disabled" ]
|
||
|
|
description:
|
||
|
|
- Configures whether deduplication is enabled. The
|
||
|
|
default for a created volume is 'enabled'. Existing
|
||
|
|
volumes will maintain their previously configured
|
||
|
|
setting unless a different value is specified in the
|
||
|
|
playbook.
|
||
|
|
required: false
|
||
|
|
compression:
|
||
|
|
choices: [ "enabled", "disabled" ]
|
||
|
|
description:
|
||
|
|
- Configures whether compression is enabled. The default
|
||
|
|
for a created volume is 'enabled'. Existing volumes
|
||
|
|
will maintain their previously configured setting unless
|
||
|
|
a different value is specified in the playbook.
|
||
|
|
required: false
|
||
|
|
blockmapcachesize:
|
||
|
|
description:
|
||
|
|
- The amount of memory allocated for caching block map
|
||
|
|
pages, in megabytes (or may be issued with an LVM-style
|
||
|
|
suffix of K, M, G, or T). The default (and minimum)
|
||
|
|
value is 128M. The value specifies the size of the
|
||
|
|
cache; there is a 15% memory usage overhead. Each 1.25G
|
||
|
|
of block map covers 1T of logical blocks, therefore a
|
||
|
|
small amount of block map cache memory can cache a
|
||
|
|
significantly large amount of block map data. Existing
|
||
|
|
volumes will maintain their previously configured
|
||
|
|
setting unless a different value is specified in the
|
||
|
|
playbook.
|
||
|
|
required: false
|
||
|
|
readcache:
|
||
|
|
choices: [ "enabled", "disabled" ]
|
||
|
|
description:
|
||
|
|
- Enables or disables the read cache. The default is
|
||
|
|
'disabled'. Choosing 'enabled' enables a read cache
|
||
|
|
which may improve performance for workloads of high
|
||
|
|
deduplication, read workloads with a high level of
|
||
|
|
compression, or on hard disk storage. Existing
|
||
|
|
volumes will maintain their previously configured
|
||
|
|
setting unless a different value is specified in the
|
||
|
|
playbook.
|
||
|
|
required: false
|
||
|
|
readcachesize:
|
||
|
|
description:
|
||
|
|
- Specifies the extra VDO device read cache size in
|
||
|
|
megabytes. This is in addition to a system-defined
|
||
|
|
minimum. Using a value with a suffix of K, M, G, or T
|
||
|
|
is optional. The default value is 0. 1.125 MB of
|
||
|
|
memory per bio thread will be used per 1 MB of read
|
||
|
|
cache specified (for example, a VDO volume configured
|
||
|
|
with 4 bio threads will have a read cache memory usage
|
||
|
|
overhead of 4.5 MB per 1 MB of read cache specified).
|
||
|
|
Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is specified
|
||
|
|
in the playbook.
|
||
|
|
required: false
|
||
|
|
emulate512:
|
||
|
|
type: bool
|
||
|
|
description:
|
||
|
|
- Enables 512-byte emulation mode, allowing drivers or
|
||
|
|
filesystems to access the VDO volume at 512-byte
|
||
|
|
granularity, instead of the default 4096-byte granularity.
|
||
|
|
Default is 'disabled'; only recommended when a driver
|
||
|
|
or filesystem requires 512-byte sector level access to
|
||
|
|
a device. This option is only available when creating
|
||
|
|
a new volume, and cannot be changed for an existing
|
||
|
|
volume.
|
||
|
|
required: false
|
||
|
|
growphysical:
|
||
|
|
type: bool
|
||
|
|
description:
|
||
|
|
- Specifies whether to attempt to execute a growphysical
|
||
|
|
operation, if there is enough unused space on the
|
||
|
|
device. A growphysical operation will be executed if
|
||
|
|
there is at least 64 GB of free space, relative to the
|
||
|
|
previous physical size of the affected VDO volume.
|
||
|
|
required: false
|
||
|
|
default: false
|
||
|
|
slabsize:
|
||
|
|
description:
|
||
|
|
- The size of the increment by which the physical size of
|
||
|
|
a VDO volume is grown, in megabytes (or may be issued
|
||
|
|
with an LVM-style suffix of K, M, G, or T). Must be a
|
||
|
|
power of two between 128M and 32G. The default is 2G,
|
||
|
|
which supports volumes having a physical size up to 16T.
|
||
|
|
The maximum, 32G, supports a physical size of up to 256T.
|
||
|
|
This option is only available when creating a new
|
||
|
|
volume, and cannot be changed for an existing volume.
|
||
|
|
required: false
|
||
|
|
writepolicy:
|
||
|
|
choices: [ "auto", "sync", "async" ]
|
||
|
|
description:
|
||
|
|
- Specifies the write policy of the VDO volume. The
|
||
|
|
'sync' mode acknowledges writes only after data is on
|
||
|
|
stable storage. The 'async' mode acknowledges writes
|
||
|
|
when data has been cached for writing to stable
|
||
|
|
storage. The default (and highly recommended) 'auto'
|
||
|
|
mode checks the storage device to determine whether it
|
||
|
|
supports flushes. Devices that support flushes will
|
||
|
|
result in a VDO volume in 'async' mode, while devices
|
||
|
|
that do not support flushes will run in sync mode.
|
||
|
|
Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is
|
||
|
|
specified in the playbook.
|
||
|
|
required: false
|
||
|
|
indexmem:
|
||
|
|
description:
|
||
|
|
- Specifies the amount of index memory in gigabytes. The
|
||
|
|
default is 0.25. The special decimal values 0.25, 0.5,
|
||
|
|
and 0.75 can be used, as can any positive integer.
|
||
|
|
This option is only available when creating a new
|
||
|
|
volume, and cannot be changed for an existing volume.
|
||
|
|
required: false
|
||
|
|
indexmode:
|
||
|
|
description:
|
||
|
|
- Specifies the index mode of the Albireo index. The
|
||
|
|
default is 'dense', which has a deduplication window of
|
||
|
|
1 GB of index memory per 1 TB of incoming data,
|
||
|
|
requiring 10 GB of index data on persistent storage.
|
||
|
|
The 'sparse' mode has a deduplication window of 1 GB of
|
||
|
|
index memory per 10 TB of incoming data, but requires
|
||
|
|
100 GB of index data on persistent storage. This option
|
||
|
|
is only available when creating a new volume, and cannot
|
||
|
|
be changed for an existing volume.
|
||
|
|
required: false
|
||
|
|
ackthreads:
|
||
|
|
description:
|
||
|
|
- Specifies the number of threads to use for
|
||
|
|
acknowledging completion of requested VDO I/O operations.
|
||
|
|
Valid values are integer values from 1 to 100 (lower
|
||
|
|
numbers are preferable due to overhead). The default is
|
||
|
|
1. Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is specified
|
||
|
|
in the playbook.
|
||
|
|
required: false
|
||
|
|
biothreads:
|
||
|
|
description:
|
||
|
|
- Specifies the number of threads to use for submitting I/O
|
||
|
|
operations to the storage device. Valid values are
|
||
|
|
integer values from 1 to 100 (lower numbers are
|
||
|
|
preferable due to overhead). The default is 4.
|
||
|
|
Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is specified
|
||
|
|
in the playbook.
|
||
|
|
required: false
|
||
|
|
cputhreads:
|
||
|
|
description:
|
||
|
|
- Specifies the number of threads to use for CPU-intensive
|
||
|
|
work such as hashing or compression. Valid values are
|
||
|
|
integer values from 1 to 100 (lower numbers are
|
||
|
|
preferable due to overhead). The default is 2.
|
||
|
|
Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is specified
|
||
|
|
in the playbook.
|
||
|
|
required: false
|
||
|
|
logicalthreads:
|
||
|
|
description:
|
||
|
|
- Specifies the number of threads across which to
|
||
|
|
subdivide parts of the VDO processing based on logical
|
||
|
|
block addresses. Valid values are integer values from
|
||
|
|
1 to 100 (lower numbers are preferable due to overhead).
|
||
|
|
The default is 1. Existing volumes will maintain their
|
||
|
|
previously configured setting unless a different value
|
||
|
|
is specified in the playbook.
|
||
|
|
required: false
|
||
|
|
physicalthreads:
|
||
|
|
description:
|
||
|
|
- Specifies the number of threads across which to
|
||
|
|
subdivide parts of the VDO processing based on physical
|
||
|
|
block addresses. Valid values are integer values from
|
||
|
|
1 to 16 (lower numbers are preferable due to overhead).
|
||
|
|
The physical space used by the VDO volume must be
|
||
|
|
larger than (slabsize * physicalthreads). The default
|
||
|
|
is 1. Existing volumes will maintain their previously
|
||
|
|
configured setting unless a different value is specified
|
||
|
|
in the playbook.
|
||
|
|
required: false
|
||
|
|
notes:
|
||
|
|
- In general, the default thread configuration should be used.
|
||
|
|
requirements:
|
||
|
|
- PyYAML
|
||
|
|
- kmod-kvdo
|
||
|
|
- vdo
|
||
|
|
'''
|
||
|
|
|
||
|
|
EXAMPLES = '''
|
||
|
|
# Create a VDO volume
|
||
|
|
- name: Create 2 TB VDO volume vdo1 on device /dev/md0
|
||
|
|
vdo:
|
||
|
|
name: vdo1
|
||
|
|
state: present
|
||
|
|
device: /dev/md0
|
||
|
|
logicalsize: 2T
|
||
|
|
|
||
|
|
# Remove a VDO volume
|
||
|
|
- name: Remove VDO volume vdo1
|
||
|
|
vdo:
|
||
|
|
name: vdo1
|
||
|
|
state: absent
|
||
|
|
'''
|
||
|
|
|
||
|
|
RETURN = '''# '''
|
||
|
|
|
||
|
|
from ansible.module_utils.basic import AnsibleModule
|
||
|
|
import re
|
||
|
|
|
||
|
|
try:
|
||
|
|
import yaml
|
||
|
|
HAS_YAML = True
|
||
|
|
except ImportError:
|
||
|
|
HAS_YAML = False
|
||
|
|
|
||
|
|
|
||
|
|
# Generate a list of VDO volumes, whether they are running or stopped.
|
||
|
|
#
|
||
|
|
# @param module The AnsibleModule object.
|
||
|
|
# @param vdocmd The path of the 'vdo' command.
|
||
|
|
#
|
||
|
|
# @return vdolist A list of currently created VDO volumes.
|
||
|
|
def inventory_vdos(module, vdocmd):
|
||
|
|
rc, vdostatusout, err = module.run_command("%s status" % (vdocmd))
|
||
|
|
|
||
|
|
# if rc != 0:
|
||
|
|
# module.fail_json(msg="Inventorying VDOs failed: %s"
|
||
|
|
# % vdostatusout, rc=rc, err=err)
|
||
|
|
|
||
|
|
vdolist = []
|
||
|
|
|
||
|
|
if (rc == 2 and
|
||
|
|
re.findall(r"vdoconf.yml does not exist", err, re.MULTILINE)):
|
||
|
|
# If there is no /etc/vdoconf.yml file, assume there are no
|
||
|
|
# VDO volumes. Return an empty list of VDO volumes.
|
||
|
|
return vdolist
|
||
|
|
|
||
|
|
if rc != 0:
|
||
|
|
module.fail_json(msg="Inventorying VDOs failed: %s"
|
||
|
|
% vdostatusout, rc=rc, err=err)
|
||
|
|
|
||
|
|
vdostatusyaml = yaml.load(vdostatusout)
|
||
|
|
if vdostatusyaml is None:
|
||
|
|
return vdolist
|
||
|
|
|
||
|
|
vdoyamls = vdostatusyaml['VDOs']
|
||
|
|
|
||
|
|
if vdoyamls is not None:
|
||
|
|
vdolist = vdoyamls.keys()
|
||
|
|
|
||
|
|
return vdolist
|
||
|
|
|
||
|
|
|
||
|
|
def list_running_vdos(module, vdocmd):
|
||
|
|
rc, vdolistout, err = module.run_command("%s list" % (vdocmd))
|
||
|
|
runningvdolist = filter(None, vdolistout.split('\n'))
|
||
|
|
return runningvdolist
|
||
|
|
|
||
|
|
|
||
|
|
# Generate a string containing options to pass to the 'VDO' command.
|
||
|
|
# Note that a 'create' operation will pass more options than a
|
||
|
|
# 'modify' operation.
|
||
|
|
#
|
||
|
|
# @param params A dictionary of parameters, and their values
|
||
|
|
# (values of 'None' and/or nonexistent values are ignored).
|
||
|
|
#
|
||
|
|
# @return vdocmdoptions A string to be used in a 'vdo <action>' command.
|
||
|
|
def start_vdo(module, vdoname, vdocmd):
|
||
|
|
rc, out, err = module.run_command("%s start --name=%s" % (vdocmd, vdoname))
|
||
|
|
if rc == 0:
|
||
|
|
module.log("started VDO volume %s" % vdoname)
|
||
|
|
|
||
|
|
return rc
|
||
|
|
|
||
|
|
|
||
|
|
def stop_vdo(module, vdoname, vdocmd):
|
||
|
|
rc, out, err = module.run_command("%s stop --name=%s" % (vdocmd, vdoname))
|
||
|
|
if rc == 0:
|
||
|
|
module.log("stopped VDO volume %s" % vdoname)
|
||
|
|
|
||
|
|
return rc
|
||
|
|
|
||
|
|
|
||
|
|
def activate_vdo(module, vdoname, vdocmd):
|
||
|
|
rc, out, err = module.run_command("%s activate --name=%s"
|
||
|
|
% (vdocmd, vdoname))
|
||
|
|
if rc == 0:
|
||
|
|
module.log("activated VDO volume %s" % vdoname)
|
||
|
|
|
||
|
|
return rc
|
||
|
|
|
||
|
|
|
||
|
|
def deactivate_vdo(module, vdoname, vdocmd):
|
||
|
|
rc, out, err = module.run_command("%s deactivate --name=%s"
|
||
|
|
% (vdocmd, vdoname))
|
||
|
|
if rc == 0:
|
||
|
|
module.log("deactivated VDO volume %s" % vdoname)
|
||
|
|
|
||
|
|
return rc
|
||
|
|
|
||
|
|
|
||
|
|
def add_vdooptions(params):
|
||
|
|
vdocmdoptions = ""
|
||
|
|
options = []
|
||
|
|
|
||
|
|
if ('logicalsize' in params) and (params['logicalsize'] is not None):
|
||
|
|
options.append("--vdoLogicalSize=" + params['logicalsize'])
|
||
|
|
|
||
|
|
if (('blockmapcachesize' in params) and
|
||
|
|
(params['blockmapcachesize'] is not None)):
|
||
|
|
options.append("--blockMapCacheSize=" + params['blockmapcachesize'])
|
||
|
|
|
||
|
|
if ('readcache' in params) and (params['readcache'] == 'enabled'):
|
||
|
|
options.append("--readCache=enabled")
|
||
|
|
|
||
|
|
if ('readcachesize' in params) and (params['readcachesize'] is not None):
|
||
|
|
options.append("--readCacheSize=" + params['readcachesize'])
|
||
|
|
|
||
|
|
if ('slabsize' in params) and (params['slabsize'] is not None):
|
||
|
|
options.append("--vdoSlabSize=" + params['slabsize'])
|
||
|
|
|
||
|
|
if ('emulate512' in params) and (params['emulate512']):
|
||
|
|
options.append("--emulate512=enabled")
|
||
|
|
|
||
|
|
if ('indexmem' in params) and (params['indexmem'] is not None):
|
||
|
|
options.append("--indexMem=" + params['indexmem'])
|
||
|
|
|
||
|
|
if ('indexmode' in params) and (params['indexmode'] == 'sparse'):
|
||
|
|
options.append("--sparseIndex=enabled")
|
||
|
|
|
||
|
|
# Entering an invalid thread config results in a cryptic
|
||
|
|
# 'Could not set up device mapper for %s' error from the 'vdo'
|
||
|
|
# command execution. The dmsetup module on the system will
|
||
|
|
# output a more helpful message, but one would have to log
|
||
|
|
# onto that system to read the error. For now, heed the thread
|
||
|
|
# limit warnings in the DOCUMENTATION section above.
|
||
|
|
if ('ackthreads' in params) and (params['ackthreads'] is not None):
|
||
|
|
options.append("--vdoAckThreads=" + params['ackthreads'])
|
||
|
|
|
||
|
|
if ('biothreads' in params) and (params['biothreads'] is not None):
|
||
|
|
options.append("--vdoBioThreads=" + params['biothreads'])
|
||
|
|
|
||
|
|
if ('cputhreads' in params) and (params['cputhreads'] is not None):
|
||
|
|
options.append("--vdoCpuThreads=" + params['cputhreads'])
|
||
|
|
|
||
|
|
if ('logicalthreads' in params) and (params['logicalthreads'] is not None):
|
||
|
|
options.append("--vdoLogicalThreads=" + params['logicalthreads'])
|
||
|
|
|
||
|
|
if (('physicalthreads' in params) and
|
||
|
|
(params['physicalthreads'] is not None)):
|
||
|
|
options.append("--vdoPhysicalThreads=" + params['physicalthreads'])
|
||
|
|
|
||
|
|
vdocmdoptions = ' '.join(options)
|
||
|
|
return vdocmdoptions
|
||
|
|
|
||
|
|
|
||
|
|
def run_module():
|
||
|
|
|
||
|
|
# Define the available arguments/parameters that a user can pass to
|
||
|
|
# the module.
|
||
|
|
# Defaults for VDO parameters are None, in order to facilitate
|
||
|
|
# the detection of parameters passed from the playbook.
|
||
|
|
# Creation param defaults are determined by the creation section.
|
||
|
|
|
||
|
|
module_args = dict(
|
||
|
|
name=dict(required=True),
|
||
|
|
state=dict(choices=['absent', 'present'], default='present'),
|
||
|
|
activated=dict(choices=['yes', 'no']),
|
||
|
|
running=dict(choices=['yes', 'no']),
|
||
|
|
growphysical=dict(type='bool', default=False),
|
||
|
|
device=dict(),
|
||
|
|
logicalsize=dict(),
|
||
|
|
deduplication=dict(choices=['enabled', 'disabled']),
|
||
|
|
compression=dict(choices=['enabled', 'disabled']),
|
||
|
|
blockmapcachesize=dict(type='str'),
|
||
|
|
readcache=dict(choices=['enabled', 'disabled']),
|
||
|
|
readcachesize=dict(),
|
||
|
|
emulate512=dict(type='bool', default=False),
|
||
|
|
slabsize=dict(),
|
||
|
|
writepolicy=dict(choices=['auto', 'sync', 'async']),
|
||
|
|
indexmem=dict(),
|
||
|
|
indexmode=dict(choices=['dense', 'sparse']),
|
||
|
|
ackthreads=dict(),
|
||
|
|
biothreads=dict(),
|
||
|
|
cputhreads=dict(),
|
||
|
|
logicalthreads=dict(),
|
||
|
|
physicalthreads=dict()
|
||
|
|
)
|
||
|
|
|
||
|
|
# Seed the result dictionary in the object. There will be an
|
||
|
|
# 'invocation' dictionary added with 'module_args' (arguments
|
||
|
|
# given).
|
||
|
|
result = dict(
|
||
|
|
changed=False
|
||
|
|
)
|
||
|
|
|
||
|
|
# the AnsibleModule object will be our abstraction working with Ansible
|
||
|
|
# this includes instantiation, a couple of common attr would be the
|
||
|
|
# args/params passed to the execution, as well as if the module
|
||
|
|
# supports check mode
|
||
|
|
module = AnsibleModule(
|
||
|
|
argument_spec=module_args,
|
||
|
|
supports_check_mode=False
|
||
|
|
)
|
||
|
|
|
||
|
|
if not HAS_YAML:
|
||
|
|
module.fail_json(msg='PyYAML is required for this module.')
|
||
|
|
|
||
|
|
vdocmd = module.get_bin_path("vdo", required=True)
|
||
|
|
if not vdocmd:
|
||
|
|
module.fail_json(msg='VDO is not installed.', **result)
|
||
|
|
|
||
|
|
# Print a pre-run list of VDO volumes in the result object.
|
||
|
|
vdolist = inventory_vdos(module, vdocmd)
|
||
|
|
|
||
|
|
runningvdolist = list_running_vdos(module, vdocmd)
|
||
|
|
|
||
|
|
# Collect the name of the desired VDO volume, and its state. These will
|
||
|
|
# determine what to do.
|
||
|
|
desiredvdo = module.params['name']
|
||
|
|
state = module.params['state']
|
||
|
|
|
||
|
|
# Create a desired VDO volume that doesn't exist yet.
|
||
|
|
if (desiredvdo not in vdolist) and (state == 'present'):
|
||
|
|
device = module.params['device']
|
||
|
|
if device is None:
|
||
|
|
module.fail_json(msg="Creating a VDO volume requires specifying "
|
||
|
|
"a 'device' in the playbook.")
|
||
|
|
|
||
|
|
# Create a dictionary of the options from the AnsibleModule
|
||
|
|
# parameters, compile the vdo command options, and run "vdo create"
|
||
|
|
# with those options.
|
||
|
|
# Since this is a creation of a new VDO volume, it will contain all
|
||
|
|
# all of the parameters given by the playbook; the rest will
|
||
|
|
# assume default values.
|
||
|
|
options = module.params
|
||
|
|
vdocmdoptions = add_vdooptions(options)
|
||
|
|
rc, out, err = module.run_command("%s create --name=%s --device=%s %s"
|
||
|
|
% (vdocmd, desiredvdo, device,
|
||
|
|
vdocmdoptions))
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Creating VDO %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if (module.params['compression'] == 'disabled'):
|
||
|
|
rc, out, err = module.run_command("%s disableCompression --name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if ((module.params['deduplication'] is not None) and
|
||
|
|
module.params['deduplication'] == 'disabled'):
|
||
|
|
rc, out, err = module.run_command("%s disableDeduplication "
|
||
|
|
"--name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if module.params['activated'] == 'no':
|
||
|
|
deactivate_vdo(module, desiredvdo, vdocmd)
|
||
|
|
|
||
|
|
if module.params['running'] == 'no':
|
||
|
|
stop_vdo(module, desiredvdo, vdocmd)
|
||
|
|
|
||
|
|
# Print a post-run list of VDO volumes in the result object.
|
||
|
|
vdolist = inventory_vdos(module, vdocmd)
|
||
|
|
module.log("created VDO volume %s" % desiredvdo)
|
||
|
|
module.exit_json(**result)
|
||
|
|
|
||
|
|
# Modify the current parameters of a VDO that exists.
|
||
|
|
if (desiredvdo in vdolist) and (state == 'present'):
|
||
|
|
rc, vdostatusoutput, err = module.run_command("%s status" % (vdocmd))
|
||
|
|
vdostatusyaml = yaml.load(vdostatusoutput)
|
||
|
|
|
||
|
|
# An empty dictionary to contain dictionaries of VDO statistics
|
||
|
|
processedvdos = {}
|
||
|
|
|
||
|
|
vdoyamls = vdostatusyaml['VDOs']
|
||
|
|
if vdoyamls is not None:
|
||
|
|
processedvdos = vdoyamls
|
||
|
|
|
||
|
|
# The 'vdo status' keys that are currently modifiable.
|
||
|
|
statusparamkeys = ['Acknowledgement threads',
|
||
|
|
'Bio submission threads',
|
||
|
|
'Block map cache size',
|
||
|
|
'CPU-work threads',
|
||
|
|
'Logical threads',
|
||
|
|
'Physical threads',
|
||
|
|
'Read cache',
|
||
|
|
'Read cache size',
|
||
|
|
'Configured write policy',
|
||
|
|
'Compression',
|
||
|
|
'Deduplication']
|
||
|
|
|
||
|
|
# A key translation table from 'vdo status' output to Ansible
|
||
|
|
# module parameters. This covers all of the 'vdo status'
|
||
|
|
# parameter keys that could be modified with the 'vdo'
|
||
|
|
# command.
|
||
|
|
vdokeytrans = {
|
||
|
|
'Logical size': 'logicalsize',
|
||
|
|
'Compression': 'compression',
|
||
|
|
'Deduplication': 'deduplication',
|
||
|
|
'Block map cache size': 'blockmapcachesize',
|
||
|
|
'Read cache': 'readcache',
|
||
|
|
'Read cache size': 'readcachesize',
|
||
|
|
'Configured write policy': 'writepolicy',
|
||
|
|
'Acknowledgement threads': 'ackthreads',
|
||
|
|
'Bio submission threads': 'biothreads',
|
||
|
|
'CPU-work threads': 'cputhreads',
|
||
|
|
'Logical threads': 'logicalthreads',
|
||
|
|
'Physical threads': 'physicalthreads'
|
||
|
|
}
|
||
|
|
|
||
|
|
# Build a dictionary of the current VDO status parameters, with
|
||
|
|
# the keys used by VDO. (These keys will be converted later.)
|
||
|
|
currentvdoparams = {}
|
||
|
|
|
||
|
|
# Build a "lookup table" dictionary containing a translation table
|
||
|
|
# of the parameters that can be modified
|
||
|
|
modtrans = {}
|
||
|
|
|
||
|
|
for statfield in statusparamkeys:
|
||
|
|
currentvdoparams[statfield] = processedvdos[desiredvdo][statfield]
|
||
|
|
modtrans[statfield] = vdokeytrans[statfield]
|
||
|
|
|
||
|
|
# Build a dictionary of current parameters formatted with the
|
||
|
|
# same keys as the AnsibleModule parameters.
|
||
|
|
currentparams = {}
|
||
|
|
for paramkey in currentvdoparams.keys():
|
||
|
|
currentparams[modtrans[paramkey]] = currentvdoparams[paramkey]
|
||
|
|
|
||
|
|
diffparams = {}
|
||
|
|
|
||
|
|
# Check for differences between the playbook parameters and the
|
||
|
|
# current parameters. This will need a comparison function;
|
||
|
|
# since AnsibleModule params are all strings, compare them as
|
||
|
|
# strings (but if it's None; skip).
|
||
|
|
for key in currentparams.keys():
|
||
|
|
if module.params[key] is not None:
|
||
|
|
if str(currentparams[key]) != module.params[key]:
|
||
|
|
diffparams[key] = module.params[key]
|
||
|
|
|
||
|
|
if diffparams:
|
||
|
|
vdocmdoptions = add_vdooptions(diffparams)
|
||
|
|
if vdocmdoptions:
|
||
|
|
rc, out, err = module.run_command("%s modify --name=%s %s"
|
||
|
|
% (vdocmd,
|
||
|
|
desiredvdo,
|
||
|
|
vdocmdoptions))
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Modifying VDO %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if 'deduplication' in diffparams.keys():
|
||
|
|
dedupemod = diffparams['deduplication']
|
||
|
|
if dedupemod == 'disabled':
|
||
|
|
rc, out, err = module.run_command("%s "
|
||
|
|
"disableDeduplication "
|
||
|
|
"--name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing deduplication on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if dedupemod == 'enabled':
|
||
|
|
rc, out, err = module.run_command("%s "
|
||
|
|
"enableDeduplication "
|
||
|
|
"--name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing deduplication on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if 'compression' in diffparams.keys():
|
||
|
|
compressmod = diffparams['compression']
|
||
|
|
if compressmod == 'disabled':
|
||
|
|
rc, out, err = module.run_command("%s disableCompression "
|
||
|
|
"--name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing compression on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if compressmod == 'enabled':
|
||
|
|
rc, out, err = module.run_command("%s enableCompression "
|
||
|
|
"--name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing compression on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if 'writepolicy' in diffparams.keys():
|
||
|
|
writepolmod = diffparams['writepolicy']
|
||
|
|
if writepolmod == 'auto':
|
||
|
|
rc, out, err = module.run_command("%s "
|
||
|
|
"changeWritePolicy "
|
||
|
|
"--name=%s "
|
||
|
|
"--writePolicy=%s"
|
||
|
|
% (vdocmd,
|
||
|
|
desiredvdo,
|
||
|
|
writepolmod))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing write policy on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if writepolmod == 'sync':
|
||
|
|
rc, out, err = module.run_command("%s "
|
||
|
|
"changeWritePolicy "
|
||
|
|
"--name=%s "
|
||
|
|
"--writePolicy=%s"
|
||
|
|
% (vdocmd,
|
||
|
|
desiredvdo,
|
||
|
|
writepolmod))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing write policy on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
if writepolmod == 'async':
|
||
|
|
rc, out, err = module.run_command("%s "
|
||
|
|
"changeWritePolicy "
|
||
|
|
"--name=%s "
|
||
|
|
"--writePolicy=%s"
|
||
|
|
% (vdocmd,
|
||
|
|
desiredvdo,
|
||
|
|
writepolmod))
|
||
|
|
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Changing write policy on "
|
||
|
|
"VDO volume %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
# Process the size parameters, to determine of a growPhysical or
|
||
|
|
# growLogical operation needs to occur.
|
||
|
|
sizeparamkeys = ['Logical size', ]
|
||
|
|
|
||
|
|
currentsizeparams = {}
|
||
|
|
sizetrans = {}
|
||
|
|
for statfield in sizeparamkeys:
|
||
|
|
currentsizeparams[statfield] = processedvdos[desiredvdo][statfield]
|
||
|
|
sizetrans[statfield] = vdokeytrans[statfield]
|
||
|
|
|
||
|
|
sizeparams = {}
|
||
|
|
for paramkey in currentsizeparams.keys():
|
||
|
|
sizeparams[sizetrans[paramkey]] = currentsizeparams[paramkey]
|
||
|
|
|
||
|
|
diffsizeparams = {}
|
||
|
|
for key in sizeparams.keys():
|
||
|
|
if module.params[key] is not None:
|
||
|
|
if str(sizeparams[key]) != module.params[key]:
|
||
|
|
diffsizeparams[key] = module.params[key]
|
||
|
|
|
||
|
|
if module.params['growphysical']:
|
||
|
|
physdevice = module.params['device']
|
||
|
|
rc, devsectors, err = module.run_command("blockdev --getsz %s"
|
||
|
|
% (physdevice))
|
||
|
|
devblocks = (int(devsectors) / 8)
|
||
|
|
dmvdoname = ('/dev/mapper/' + desiredvdo)
|
||
|
|
currentvdostats = (processedvdos[desiredvdo]
|
||
|
|
['VDO statistics']
|
||
|
|
[dmvdoname])
|
||
|
|
currentphysblocks = currentvdostats['physical blocks']
|
||
|
|
|
||
|
|
# Set a growPhysical threshold to grow only when there is
|
||
|
|
# guaranteed to be more than 2 slabs worth of unallocated
|
||
|
|
# space on the device to use. For now, set to device
|
||
|
|
# size + 64 GB, since 32 GB is the largest possible
|
||
|
|
# slab size.
|
||
|
|
growthresh = devblocks + 16777216
|
||
|
|
|
||
|
|
if currentphysblocks > growthresh:
|
||
|
|
result['changed'] = True
|
||
|
|
rc, out, err = module.run_command("%s growPhysical --name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
|
||
|
|
if 'logicalsize' in diffsizeparams.keys():
|
||
|
|
result['changed'] = True
|
||
|
|
vdocmdoptions = ("--vdoLogicalSize=" +
|
||
|
|
diffsizeparams['logicalsize'])
|
||
|
|
rc, out, err = module.run_command("%s growLogical --name=%s %s"
|
||
|
|
% (vdocmd,
|
||
|
|
desiredvdo,
|
||
|
|
vdocmdoptions))
|
||
|
|
|
||
|
|
vdoactivatestatus = processedvdos[desiredvdo]['Activate']
|
||
|
|
|
||
|
|
if ((module.params['activated'] == 'no') and
|
||
|
|
(vdoactivatestatus == 'enabled')):
|
||
|
|
deactivate_vdo(module, desiredvdo, vdocmd)
|
||
|
|
if not result['changed']:
|
||
|
|
result['changed'] = True
|
||
|
|
|
||
|
|
if ((module.params['activated'] == 'yes') and
|
||
|
|
(vdoactivatestatus == 'disabled')):
|
||
|
|
activate_vdo(module, desiredvdo, vdocmd)
|
||
|
|
if not result['changed']:
|
||
|
|
result['changed'] = True
|
||
|
|
|
||
|
|
if ((module.params['running'] == 'no') and
|
||
|
|
(desiredvdo in runningvdolist)):
|
||
|
|
stop_vdo(module, desiredvdo, vdocmd)
|
||
|
|
if not result['changed']:
|
||
|
|
result['changed'] = True
|
||
|
|
|
||
|
|
# Note that a disabled VDO volume cannot be started by the
|
||
|
|
# 'vdo start' command, by design. To accurately track changed
|
||
|
|
# status, don't try to start a disabled VDO volume.
|
||
|
|
# If the playbook contains 'activated: yes', assume that
|
||
|
|
# the activate_vdo() operation succeeded, as 'vdoactivatestatus'
|
||
|
|
# will have the activated status prior to the activate_vdo()
|
||
|
|
# call.
|
||
|
|
if (((vdoactivatestatus == 'enabled') or
|
||
|
|
(module.params['activated'] == 'yes')) and
|
||
|
|
(module.params['running'] == 'yes') and
|
||
|
|
(desiredvdo not in runningvdolist)):
|
||
|
|
start_vdo(module, desiredvdo, vdocmd)
|
||
|
|
if not result['changed']:
|
||
|
|
result['changed'] = True
|
||
|
|
|
||
|
|
# Print a post-run list of VDO volumes in the result object.
|
||
|
|
vdolist = inventory_vdos(module, vdocmd)
|
||
|
|
if diffparams:
|
||
|
|
module.log("modified parameters of VDO volume %s" % desiredvdo)
|
||
|
|
|
||
|
|
module.exit_json(**result)
|
||
|
|
|
||
|
|
# Remove a desired VDO that currently exists.
|
||
|
|
if (desiredvdo in vdolist) and (state == 'absent'):
|
||
|
|
rc, out, err = module.run_command("%s remove --name=%s"
|
||
|
|
% (vdocmd, desiredvdo))
|
||
|
|
if rc == 0:
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg="Removing VDO %s failed."
|
||
|
|
% desiredvdo, rc=rc, err=err)
|
||
|
|
|
||
|
|
# Print a post-run list of VDO volumes in the result object.
|
||
|
|
vdolist = inventory_vdos(module, vdocmd)
|
||
|
|
module.log("removed VDO volume %s" % desiredvdo)
|
||
|
|
module.exit_json(**result)
|
||
|
|
|
||
|
|
# fall through
|
||
|
|
# The state for the desired VDO volume was absent, and it does
|
||
|
|
# not exist. Print a post-run list of VDO volumes in the result
|
||
|
|
# object.
|
||
|
|
vdolist = inventory_vdos(module, vdocmd)
|
||
|
|
module.log("received request to remove non-existent VDO volume %s"
|
||
|
|
% desiredvdo)
|
||
|
|
|
||
|
|
module.exit_json(**result)
|
||
|
|
|
||
|
|
|
||
|
|
def main():
|
||
|
|
run_module()
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|