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# -*- coding: utf-8 -*-
from enum import Enum
from typing import NamedTuple
from .. import mgr
class ClusterCapacity(NamedTuple):
total_avail_bytes: int
total_bytes: int
total_used_raw_bytes: int
total_objects: int
total_pool_bytes_used: int
average_object_size: int
class ClusterModel:
class Status(Enum):
INSTALLED = 0
POST_INSTALLED = 1
status: Status
def __init__(self, status=Status.POST_INSTALLED.name):
"""
:param status: The status of the cluster. Assume that the cluster
is already functional by default.
:type status: str
"""
self.status = self.Status[status]
def dict(self):
return {'status': self.status.name}
def to_db(self):
mgr.set_store('cluster/status', self.status.name)
@classmethod
def from_db(cls):
"""
Get the stored cluster status from the configuration key/value store.
If the status is not set, assume it is already fully functional.
"""
return cls(status=mgr.get_store('cluster/status', cls.Status.POST_INSTALLED.name))
@classmethod
def get_capacity(cls) -> ClusterCapacity:
df = mgr.get('df')
total_pool_bytes_used = 0
average_object_size = 0
total_data_pool_objects = 0
total_data_pool_bytes_used = 0
rgw_pools_data = cls.get_rgw_pools()
for pool in df['pools']:
pool_name = str(pool['name'])
if pool_name in rgw_pools_data:
if pool_name.endswith('.data'):
objects = pool['stats']['objects']
pool_bytes_used = pool['stats']['bytes_used']
total_pool_bytes_used += pool_bytes_used
total_data_pool_objects += objects
replica = rgw_pools_data[pool_name]
total_data_pool_bytes_used += pool_bytes_used / replica
average_object_size = total_data_pool_bytes_used / total_data_pool_objects if total_data_pool_objects != 0 else 0 # noqa E501 #pylint: disable=line-too-long
return ClusterCapacity(
total_avail_bytes=df['stats']['total_avail_bytes'],
total_bytes=df['stats']['total_bytes'],
total_used_raw_bytes=df['stats']['total_used_raw_bytes'],
total_objects=total_data_pool_objects,
total_pool_bytes_used=total_pool_bytes_used,
average_object_size=average_object_size
)._asdict()
@classmethod
def get_rgw_pools(cls):
rgw_pool_size = {}
osd_map = mgr.get('osd_map')
for pool in osd_map['pools']:
if 'rgw' in pool.get('application_metadata', {}):
name = pool['pool_name']
rgw_pool_size[name] = pool['size']
return rgw_pool_size
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