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Merge pull request #5144 from virtua-network/module_zpool
modules/zpool : make it available for compatible Solaris family
This commit is contained in:
Thomas S Hatch
commit
5bbd228c49
@ -1,37 +1,80 @@
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'''
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zfs support.
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Assumes FreeBSD
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:depends: - mkfile
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Module for running ZFS zpool command
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'''
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# Import python libs
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# Import Python libs
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import os
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import logging
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# Import Salt libs
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import salt.utils
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log = logging.getLogger(__name__)
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@salt.utils.memoize
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def _check_zpool():
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'''
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Looks to see if zpool is present on the system
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'''
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return salt.utils.which('zpool')
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@salt.utils.memoize
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def _check_mkfile():
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'''
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Looks to see if mkfile is present on the system
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'''
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return salt.utils.which('mkfile')
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def __virtual__():
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'''
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FreeBSD only for now
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Provides zpool only on supported OS
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'''
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enabled = ['FreeBSD', 'Solaris']
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return 'zpool' if __grains__['os'] in enabled else False
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supported = set(('Solaris', 'SmartOS', 'FreeBSD'))
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if __grains__['os'] in supported and _check_zpool():
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# Don't let this work on Solaris 9 since ZFS is not available on it.
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if __grains__['os'] == 'Solaris' and __grains__['kernelrelease'] == '5.9':
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return False
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return 'zpool'
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return False
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def list_installed():
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def status(name=''):
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'''
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Returns a list of installed packages
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Return the status of the named zpool
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CLI Example::
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salt '*' zpool.status
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'''
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installed = []
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pkgs = __salt__['cmd.run']('pkg info')
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for package in pkgs.splitlines():
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installed.append(package)
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return installed
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zpool = _check_zpool()
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res = __salt__['cmd.run']('{0} status {1}'.format(zpool, name))
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ret = res.splitlines()
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return ret
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def pool_exists(pool_name):
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def zpool_list():
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'''
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Check if a zfs storage pool is active
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Return a list of all pools in the system with health status and space usage
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CLI Example::
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salt '*' zpool.zpool_list
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'''
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zpool = _check_zpool()
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res = __salt__['cmd.run']('{0} list'.format(zpool))
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pool_list = [l for l in res.splitlines()]
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return {'pools': pool_list}
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def exists(pool_name):
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'''
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Check if a ZFS storage pool is active
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CLI Example::
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salt '*' zpool.exists myzpool
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'''
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current_pools = zpool_list()
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for pool in current_pools['pools']:
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@ -40,97 +83,60 @@ def pool_exists(pool_name):
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return None
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def zpool_list():
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def destroy(pool_name):
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'''
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List zpool's size and usage
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'''
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res = __salt__['cmd.run']('zpool list')
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pool_list = [l for l in res.splitlines()]
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return {'pools': pool_list}
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def _check_mkfile():
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'''
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Checks if mkfile is installed if not install
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'''
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if 'mkfile' not in list_installed():
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# install mkfile
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__salt__['cmd.run']('make -C /usr/ports/sysutils/mkfile install \
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clean')
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return 0
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def create_file_vdevice(size, *names):
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'''
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Creates file based ``virtual devices`` for a zpool
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``*names`` is a list of full paths for mkfile to create
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Destroys a storage pool
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CLI Example::
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salt '*' zfs.create_file_vdevice 7g /disk1 /disk2
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Depending on file size this may take a while to return
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salt '*' zpool.destroy myzpool
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'''
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ret = {}
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# Insure mkfile is installed
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_check_mkfile()
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dlist = []
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# Get file names to create
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for name in names:
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# check if file is present if not add it
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if os.path.isfile(name):
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ret[name] = 'File: {0} already present'.format(name)
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else:
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dlist.append(name)
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devs = ' '.join(dlist)
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cmd = 'mkfile {0} {1}'.format(size, devs)
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__salt__['cmd.run'](cmd)
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# Makesure the files are there
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for name in names:
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if not os.path.isfile(name):
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ret[name] = 'Not installed but weird it should be'
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ret['status'] = True
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ret[cmd] = cmd
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return ret
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if exists(pool_name):
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zpool = _check_zpool()
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cmd = '{0} destroy {1}'.format(zpool, pool_name)
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__salt__['cmd.run'](cmd)
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if not exists(pool_name):
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ret[pool_name] = "Deleted"
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return ret
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else:
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ret['Error'] = 'Storage pool {0} does not exist'.format(pool_name)
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def zpool_create(pool_name, *disks):
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def create(pool_name, *vdevs):
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'''
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Create a simple storage pool
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Create a new storage pool
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CLI Example::
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salt '*' zfs.zpool_create myzpool /disk1 /disk2
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salt '*' zpool.create myzpool /path/to/vdev1 [/path/to/vdev2] [...]
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'''
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ret = {}
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dlist = []
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# Check if the pool_name is already being used
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if pool_exists(pool_name):
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if exists(pool_name):
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ret['Error'] = 'Storage Pool `{0}` already exists'.format(pool_name)
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return ret
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# make sure files are present on filesystem
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for disk in disks:
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if not os.path.isfile(disk):
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for vdev in vdevs:
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if not os.path.isfile(vdev):
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# File is not there error and return
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ret[disk] = '{0} not present on filesystem'.format(disk)
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ret[vdev] = '{0} not present on filesystem'.format(vdev)
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return ret
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else:
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dlist.append(disk)
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dlist.append(vdev)
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devs = ' '.join(dlist)
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cmd = 'zpool create {0} {1}'.format(pool_name, devs)
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zpool = _check_zpool()
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cmd = '{0} create {1} {2}'.format(zpool, pool_name, devs)
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# Create storage pool
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__salt__['cmd.run'](cmd)
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# Check and see if the pools is available
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if pool_exists(pool_name):
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if exists(pool_name):
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ret[pool_name] = 'created'
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return ret
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else:
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@ -139,96 +145,52 @@ def zpool_create(pool_name, *disks):
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return ret
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def zpool_status(name=''):
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def add(pool_name, vdev):
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'''
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Return the status of the named zpool
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Add the specified vdev to the given pool
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CLI Example::
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salt '*' zpool.zpool_status
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'''
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res = __salt__['cmd.run']('zpool status {0}'.format(name))
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ret = res.splitlines()
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return ret
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def zpool_destroy(pool_name):
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'''
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Destroys a storage pool
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CLI Example::
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salt '*' zfs.zpool_destroy myzpool
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'''
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ret = {}
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if pool_exists(pool_name):
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cmd = 'zpool destroy {0}'.format(pool_name)
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__salt__['cmd.run'](cmd)
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if not pool_exists(pool_name):
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ret[pool_name] = "Deleted"
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return ret
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else:
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ret['Error'] = 'Storage pool {0} does not exists'.format(pool_name)
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def zpool_detach(zpool, device):
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'''
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Detach a device from a storage pool
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THIS FUNCTION IS NOT YET IMPLEMENTED
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CLI Example::
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salt '*' zfs.detach myzpool /disk1
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'''
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pass
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def add(pool_name, vdisk):
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'''
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Add a single device to mirror
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CLI Example::
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salt '*' zfs.add myzpool /disk2
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salt '*' zpool.add myzpool /path/to/vdev
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'''
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ret = {}
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# check for pool
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if not pool_exists(pool_name):
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if not exists(pool_name):
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ret['Error'] = 'Can\'t add {0} to {1} pool is not available'.format(
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pool_name,
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vdisk)
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vdev)
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return ret
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# check device is a file
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if not os.path.isfile(vdisk):
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ret['Error'] = '{0} not on filesystem'.format(vdisk)
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if not os.path.isfile(vdev):
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ret['Error'] = '{0} not on filesystem'.format(vdev)
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return ret
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# try and add watch out for mismatched replication levels
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cmd = 'zpool add {0} {1}'.format(pool_name, vdisk)
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zpool = _check_zpool()
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cmd = '{0} add {1} {2}'.format(zpool, pool_name, vdev)
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res = __salt__['cmd.run'](cmd)
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if not 'errors' in res.splitlines():
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ret['Added'] = '{0} to {1}'.format(vdisk, pool_name)
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ret['Added'] = '{0} to {1}'.format(vdev, pool_name)
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return ret
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ret['Error'] = 'Something went wrong add {0} to {1}'.format(vdisk, pool_name)
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ret['Error'] = 'Something went wrong add {0} to {1}'.format(vdev, pool_name)
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def replace(pool_name, old, new):
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'''
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Replace a disk in a pool with another disk.
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Replaces old device with new device.
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CLI Example::
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salt '*' zfs.replace myzpool /disk1 /disk2
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salt '*' zpool.replace myzpool /path/to/vdev1 /path/to/vdev2
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'''
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ret = {}
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# Make sure pools there
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if not pool_exists(pool_name):
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if not exists(pool_name):
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ret['Error'] = '{0}: pool does not exists.'.format(pool_name)
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return ret
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# make sure old, new disks are on filesystem
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# make sure old, new vdevs are on filesystem
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if not os.path.isfile(old):
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ret['Error'] = '{0}: is not on the file system.'.format(old)
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return ret
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@ -236,15 +198,54 @@ def replace(pool_name, old, new):
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ret['Error'] = '{0}: is not on the file system.'.format(new)
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return ret
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# Replace disks
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cmd = 'zpool replace {0} {1} {2}'.format(pool_name, old, new)
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# Replace vdevs
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zpool = _check_zpool()
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cmd = '{0} replace {1} {2} {3}'.format(zpool, pool_name, old, new)
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__salt__['cmd.run'](cmd)
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# check for new disk in pool
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res = zpool_status(name=pool_name)
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# check for new vdev in pool
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res = status(name=pool_name)
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for line in res:
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if new in line:
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ret['replaced'] = '{0} with {1}'.format(old, new)
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return ret
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ret['Error'] = 'Does not look like devices where swapped check status'
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return ret
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def create_file_vdev(size, *vdevs):
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'''
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Creates file based ``virtual devices`` for a zpool
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``*vdevs`` is a list of full paths for mkfile to create
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CLI Example::
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salt '*' zpool.create_file_vdev 7g /path/to/vdev1 [/path/to/vdev2] [...]
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Depending on file size this may take a while to return
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'''
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ret = {}
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if not _check_mkfile():
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return False
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dlist = []
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# Get file names to create
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for vdev in vdevs:
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# check if file is present if not add it
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if os.path.isfile(vdev):
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ret[vdev] = 'File: {0} already present'.format(vdev)
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else:
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dlist.append(vdev)
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devs = ' '.join(dlist)
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mkfile = _check_mkfile()
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cmd = '{0} {1} {2}'.format(mkfile, size, devs)
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__salt__['cmd.run'](cmd)
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# Makesure the files are there
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for vdev in vdevs:
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if not os.path.isfile(vdev):
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ret[vdev] = 'The vdev can\'t be created'
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ret['status'] = True
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ret[cmd] = cmd
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return ret
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