diff options
Diffstat (limited to 'src/ceph-volume/ceph_volume/util/disk.py')
| -rw-r--r-- | src/ceph-volume/ceph_volume/util/disk.py | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/src/ceph-volume/ceph_volume/util/disk.py b/src/ceph-volume/ceph_volume/util/disk.py index 77b55314f66..921e61a4534 100644 --- a/src/ceph-volume/ceph_volume/util/disk.py +++ b/src/ceph-volume/ceph_volume/util/disk.py @@ -347,12 +347,21 @@ def lsblk_all(device: str = '', return result -def is_device(dev): +def is_device(dev: str) -> bool: """ - Boolean to determine if a given device is a block device (**not** - a partition!) + Determines whether the given path corresponds to a block device (not a partition). - For example: /dev/sda would return True, but not /dev/sdc1 + This function checks whether the provided device path represents a valid block device, + such as a physical disk (/dev/sda) or an allowed loop device, but excludes partitions + (/dev/sdc1). It performs several validation steps, including file existence, path format, + device type, and additional checks for loop devices if allowed. + + Args: + dev (str): The path to the device (e.g., "/dev/sda"). + + Returns: + bool: True if the path corresponds to a valid block device (not a partition), + otherwise False. """ if not os.path.exists(dev): return False @@ -364,7 +373,7 @@ def is_device(dev): TYPE = lsblk(dev).get('TYPE') if TYPE: - return TYPE in ['disk', 'mpath'] + return TYPE in ['disk', 'mpath', 'loop'] # fallback to stat return _stat_is_device(os.lstat(dev).st_mode) and not is_partition(dev) |