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@ -62,6 +62,11 @@ options:
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version_added: "2.0"
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description:
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- Free-form options to be passed to the lvcreate command
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snapshot:
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version_added: "2.1"
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description:
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- The name of the snapshot volume
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required: false
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notes:
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- Filesystems on top of the volume are not resized.
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'''
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@ -87,6 +92,9 @@ EXAMPLES = '''
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# Remove the logical volume.
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- lvol: vg=firefly lv=test state=absent force=yes
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# Create a snapshot volume of the test logical volume.
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- lvol: vg=firefly lv=test snapshot=snap1 size=100m
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'''
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import re
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@ -128,6 +136,7 @@ def main():
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opts=dict(type='str'),
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state=dict(choices=["absent", "present"], default='present'),
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force=dict(type='bool', default='no'),
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snapshot=dict(type='str', default=None),
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),
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supports_check_mode=True,
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)
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@ -150,6 +159,7 @@ def main():
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force = module.boolean(module.params['force'])
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size_opt = 'L'
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size_unit = 'm'
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snapshot = module.params['snapshot']
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if opts is None:
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opts = ""
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@ -201,8 +211,12 @@ def main():
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lvs = parse_lvs(current_lvs)
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if snapshot is None:
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check_lv = lv
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else:
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check_lv = snapshot
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for test_lv in lvs:
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if test_lv['name'] == lv:
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if test_lv['name'] == check_lv:
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this_lv = test_lv
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break
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else:
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@ -222,7 +236,10 @@ def main():
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changed = True
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else:
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lvcreate_cmd = module.get_bin_path("lvcreate", required=True)
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cmd = "%s %s -n %s -%s %s%s %s %s" % (lvcreate_cmd, yesopt, lv, size_opt, size, size_unit, opts, vg)
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if snapshot is not None:
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cmd = "%s %s -%s %s%s -s -n %s %s %s/%s" % (lvcreate_cmd, yesopt, size_opt, size, size_unit, snapshot, opts, vg, lv)
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else:
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cmd = "%s %s -n %s -%s %s%s %s %s" % (lvcreate_cmd, yesopt, lv, size_opt, size, size_unit, opts, vg)
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rc, _, err = module.run_command(cmd)
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if rc == 0:
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changed = True
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@ -247,9 +264,9 @@ def main():
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else:
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### resize LV
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tool = None
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if size > this_lv['size']:
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if int(size) > this_lv['size']:
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tool = module.get_bin_path("lvextend", required=True)
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elif size < this_lv['size']:
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elif int(size) < this_lv['size']:
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if not force:
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module.fail_json(msg="Sorry, no shrinking of %s without force=yes." % (this_lv['name']))
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tool = module.get_bin_path("lvreduce", required=True)
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@ -259,8 +276,11 @@ def main():
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if module.check_mode:
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changed = True
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else:
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rc, _, err = module.run_command("%s -%s %s%s %s/%s" % (tool, size_opt, size, size_unit, vg, this_lv['name']))
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if rc == 0:
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cmd = "%s -%s %s%s %s/%s" % (tool, size_opt, size, size_unit, vg, this_lv['name'])
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rc, out, err = module.run_command(cmd)
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if "Reached maximum COW size" in out:
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module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err, out=out)
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elif rc == 0:
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changed = True
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elif "matches existing size" in err:
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module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
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