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| author | Vladik Romanovsky <vladik.romanovsky@enovance.com> | 2014-06-13 10:11:08 -0400 |
|---|---|---|
| committer | Vladik Romanovsky <vladik.romanovsky@enovance.com> | 2014-07-24 16:00:23 -0400 |
| commit | 099aad2c3f8887fb9c7c1e81cf4239a104227f48 (patch) | |
| tree | c77654bdc1a5d0c779dc17f877bb5c23d7fe659b /nova/block_device.py | |
| parent | 90cf9f654238b138f96ae67897e707a37e71beae (diff) | |
| download | nova-099aad2c3f8887fb9c7c1e81cf4239a104227f48.tar.gz | |
Method to filter non-root block device mappings
Adding a generator that would provide a non-root block device
mappings, when it's optional variable exclude_root_mapping is
set to true. Otherwise, all mappings will be returned.
The method will be used to handle LXC volumes, as it's root FS
should be handled differently.
Change-Id: I879916021c3b61f19dd69ff11838dbbac19f72d1
Related-Bug: #1269990
Diffstat (limited to 'nova/block_device.py')
| -rw-r--r-- | nova/block_device.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/nova/block_device.py b/nova/block_device.py index b0e048d6c5..3cb123bd68 100644 --- a/nova/block_device.py +++ b/nova/block_device.py @@ -422,6 +422,14 @@ def get_root_bdm(bdms): return None +def get_bdms_to_connect(bdms, exclude_root_mapping=False): + """Will return non-root mappings, when exclude_root_mapping is true. + Otherwise all mappings will be returned. + """ + return (bdm for bdm in bdms if bdm.get('boot_index', -1) != 0 or + not exclude_root_mapping) + + def mappings_prepend_dev(mappings): """Prepend '/dev/' to 'device' entry of swap/ephemeral virtual type.""" for m in mappings: |