[PATCH 5/6] Add an example of creating lvs using growable requests.

David Lehman dlehman at redhat.com
Fri Dec 13 15:55:33 UTC 2013


---
 examples/lvm.py | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 examples/lvm.py

diff --git a/examples/lvm.py b/examples/lvm.py
new file mode 100644
index 0000000..3d9f451
--- /dev/null
+++ b/examples/lvm.py
@@ -0,0 +1,64 @@
+import logging
+import sys
+import os
+
+from common import set_up_logging
+from common import create_sparse_file
+from common import tear_down_disk_images
+from common import print_devices
+
+# doing this before importing blivet gets the logging from format class
+# registrations and other stuff triggered by the import
+set_up_logging()
+blivet_log = logging.getLogger("blivet")
+blivet_log.info(sys.argv[0])
+
+import blivet
+from blivet.size import Size
+
+b = blivet.Blivet()   # create an instance of Blivet (don't add system devices)
+
+# create two disk image files on which to create new devices
+disk1_file = create_sparse_file(b, "disk1", Size(spec="100GB"))
+b.config.diskImages["disk1"] = disk1_file
+
+b.reset()
+
+try:
+    disk1 = b.devicetree.getDeviceByName("disk1")
+
+    b.initializeDisk(disk1)
+
+    pv = b.newPartition(size=Size(spec="50GB"), fmt_type="lvmpv")
+    b.createDevice(pv)
+
+    # allocate the partitions (decide where and on which disks they'll reside)
+    blivet.partitioning.doPartitioning(b)
+
+    vg = b.newVG(parents=[pv])
+    b.createDevice(vg)
+
+    # new lv with base size 5GB and unbounded growth and an ext4 filesystem
+    dev = b.newLV(fmt_type="ext4", size=Size(spec="5GB"), grow=True,
+                  parents=[vg], name="unbounded")
+    b.createDevice(dev)
+
+    # new lv with base size 5GB and growth up to 15GB and an ext4 filesystem
+    dev = b.newLV(fmt_type="ext4", size=Size(spec="5GB"), grow=True,
+                  maxsize=Size(spec="15GB"), parents=[vg], name="bounded")
+    b.createDevice(dev)
+
+    # new lv with a fixed size of 2GB formatted as swap space
+    dev = b.newLV(fmt_type="swap", size=Size(spec="2GB"), parents=[vg])
+    b.createDevice(dev)
+
+    # allocate the growable lvs
+    blivet.partitioning.growLVM(b)
+    print_devices(b)
+
+    # write the new partitions to disk and format them as specified
+    b.doIt()
+    print_devices(b)
+finally:
+    tear_down_disk_images(b)
+    os.unlink(disk1_file)
-- 
1.8.1.4



More information about the anaconda-patches mailing list