104 lines
2.9 KiB
Diff
104 lines
2.9 KiB
Diff
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commit 10ba799ab08001d5435425e65f039f20cadd306e
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Author: Tony Asleson <tasleson@redhat.com>
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Date: Mon Oct 15 13:54:19 2012 -0700
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python-lvm: Update example to work with lvm object removal.
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Signed-off-by: Tony Asleson <tasleson@redhat.com>
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Signed-off-by: Andy Grover <agrover@redhat.com>
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---
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python/example.py | 35 +++++++++++++++--------------------
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1 file changed, 15 insertions(+), 20 deletions(-)
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diff --git a/python/example.py b/python/example.py
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index 67bb7e4..5c14ee1 100644
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--- a/python/example.py
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+++ b/python/example.py
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@@ -31,9 +31,9 @@ def print_pv(pv):
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#Dump some information about a specific volume group
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-def print_vg(h, vg_name):
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+def print_vg(vg_name):
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#Open read only
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- vg = h.vgOpen(vg_name, 'r')
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+ vg = lvm.vgOpen(vg_name, 'r')
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print 'Volume group:', vg_name, 'Size: ', vg.getSize()
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@@ -55,13 +55,13 @@ def print_vg(h, vg_name):
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vg.close()
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#Returns the name of a vg with space available
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-def find_vg_with_free_space(h):
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+def find_vg_with_free_space():
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free_space = 0
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rc = None
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- vg_names = l.listVgNames()
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+ vg_names = lvm.listVgNames()
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for v in vg_names:
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- vg = h.vgOpen(v, 'r')
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+ vg = lvm.vgOpen(v, 'r')
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c_free = vg.getFreeSize()
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if c_free > free_space:
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free_space = c_free
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@@ -72,13 +72,13 @@ def find_vg_with_free_space(h):
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#Walk through the volume groups and fine one with space in which we can
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#create a new logical volume
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-def create_delete_logical_volume(h):
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- vg_name = find_vg_with_free_space(h)
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+def create_delete_logical_volume():
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+ vg_name = find_vg_with_free_space()
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print 'Using volume group ', vg_name, ' for example'
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if vg_name:
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- vg = h.vgOpen(vg_name, 'w')
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+ vg = lvm.vgOpen(vg_name, 'w')
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lv = vg.createLvLinear('python_lvm_ok_to_delete', vg.getFreeSize())
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if lv:
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@@ -93,11 +93,11 @@ def create_delete_logical_volume(h):
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#Remove tag
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lv.removeTag(t)
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+ lv.deactivate()
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+
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#Try to rename
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- lv.rename("python_lvm_ok_to_be_removed_shortly")
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+ lv.rename("python_lvm_renamed")
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print 'LV name= ', lv.getName()
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-
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- lv.deactivate()
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lv.remove()
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vg.close()
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@@ -105,21 +105,16 @@ def create_delete_logical_volume(h):
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print 'No free space available to create demo lv!'
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if __name__ == '__main__':
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- #Create a new LVM instance
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- l = lvm.Liblvm()
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-
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#What version
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- print 'lvm version=', l.getVersion()
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+ print 'lvm version=', lvm.getVersion()
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#Get a list of volume group names
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- vg_names = l.listVgNames()
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+ vg_names = lvm.listVgNames()
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#For each volume group display some information about each of them
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for vg_i in vg_names:
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- print_vg(l, vg_i)
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+ print_vg(vg_i)
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#Demo creating a logical volume
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- create_delete_logical_volume(l)
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+ create_delete_logical_volume()
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- #Close
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- l.close()
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