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import os
import blivet
from blivet.size import Size
from blivet.util import set_up_logging, create_sparse_tempfile
set_up_logging()
b = blivet.Blivet() # create an instance of Blivet (don't add system devices)
# create a disk image file on which to create new devices
disk1_file = create_sparse_tempfile("disk1", Size("100GiB"))
b.disk_images["disk1"] = disk1_file
b.reset()
try:
disk1 = b.devicetree.get_device_by_name("disk1")
b.initialize_disk(disk1)
pv = b.new_partition(size=Size("1GiB"), grow=True, fmt_type="lvmpv")
b.create_device(pv)
# allocate the partitions (decide where and on which disks they'll reside)
blivet.partitioning.do_partitioning(b)
vg = b.new_vg(parents=[pv])
b.create_device(vg)
# pool root
pool00 = b.new_lv(parents=[vg], thin_pool=True, size=Size("16GiB"), grow=False)
b.create_device(pool00)
root = b.new_lv(parents=[pool00], thin_volume=True, name="root", size=Size("1GiB"), grow=True, fmt_type="ext4")
b.create_device(root)
# new lv with a fixed size of 2GiB formatted as swap space
swap = b.new_lv(fmt_type="swap", size=Size("2GiB"), parents=[vg])
b.create_device(swap)
# pool vm
pool01 = b.new_lv(parents=[vg], thin_pool=True, grow=True, size=Size("1GiB"))
b.create_device(pool01)
# allocate the growable lvs
blivet.partitioning.grow_lvm(b)
print(b.devicetree)
# write the new partitions to disk and format them as specified
b.do_it()
print(b.devicetree)
finally:
b.devicetree.teardown_disk_images()
os.unlink(disk1_file)
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