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