ceph/src/pybind/mgr/dashboard/rbd_ls.py

   1
   2 import rbd
   3 import rados
   4 from types import OsdMap
   5 from remote_view_cache import RemoteViewCache
   6
   7 class RbdPoolLs(RemoteViewCache):
   8     def _get(self):
   9         from mgr_module import ceph_state
  10         ctx_capsule = ceph_state.get_context()
  11
  12         osd_map = self._module.get_sync_object(OsdMap).data
  13         osd_pools = [pool['pool_name'] for pool in osd_map['pools']]
  14
  15         rbd_pools = []
  16         for pool in osd_pools:
  17             self.log.debug("Constructing IOCtx " + pool)
  18             try:
  19                 ioctx = self._module.rados.open_ioctx(pool)
  20                 ioctx.stat("rbd_directory")
  21                 rbd_pools.append(pool)
  22             except (rados.PermissionError, rados.ObjectNotFound):
  23                 self.log.debug("No RBD directory in " + pool)
  24             except:
  25                 self.log.exception("Failed to open pool " + pool)
  26
  27         return rbd_pools
  28
  29 class RbdLs(RemoteViewCache):
  30     def __init__(self, module_inst, pool):
  31         super(RbdLs, self).__init__(module_inst)
  32
  33         self.pool = pool
  34
  35         self.ioctx = None
  36         self.rbd = None
  37
  38     def _init(self):
  39         self.log.debug("Constructing IOCtx")
  40         self.ioctx = self._module.rados.open_ioctx(self.pool)
  41
  42         self.log.debug("Constructing RBD")
  43         self.rbd = rbd.RBD()
  44
  45     def _get(self):
  46         self.log.debug("rbd.list")
  47         names = self.rbd.list(self.ioctx)
  48         result = []
  49         for name in names:
  50             i = rbd.Image(self.ioctx, name)
  51             stat = i.stat()
  52             stat['name'] = name
  53             features = i.features()
  54             stat['features'] = features
  55             stat['features_name'] = self._format_bitmask(features)
  56
  57             try:
  58                 parent_info = i.parent_info()
  59                 parent = "{}@{}".format(parent_info[0], parent_info[1])
  60                 if parent_info[0] != self.pool:
  61                     parent = "{}/{}".format(parent_info[0], parent)
  62                 stat['parent'] = parent
  63             except rbd.ImageNotFound:
  64                 pass
  65             result.append(stat)
  66         return result
  67
  68     def _format_bitmask(self, features):
  69         names = ""
  70         RBD_FEATURES_NAME_MAPPING = {
  71             rbd.RBD_FEATURE_LAYERING: "layering",
  72             rbd.RBD_FEATURE_STRIPINGV2: "striping",
  73             rbd.RBD_FEATURE_EXCLUSIVE_LOCK: "exclusive-lock",
  74             rbd.RBD_FEATURE_OBJECT_MAP: "object-map",
  75             rbd.RBD_FEATURE_FAST_DIFF: "fast-diff",
  76             rbd.RBD_FEATURE_DEEP_FLATTEN: "deep-flatten",
  77             rbd.RBD_FEATURE_JOURNALING: "journaling",
  78             rbd.RBD_FEATURE_DATA_POOL: "data-pool",
  79         }
  80
  81         for key in RBD_FEATURES_NAME_MAPPING.keys():
  82             if (key & features == 0):
  83                 continue
  84
  85             if names:
  86                 names = names + ", "
  87             names = names + RBD_FEATURES_NAME_MAPPING.get(key)
  88
  89         return names