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# -*- coding: utf-8 -*-
from __future__ import absolute_import
from cherrypy import NotFound
from .. import mgr
from ..security import Scope
from ..services.ceph_service import CephService
from . import APIDoc, APIRouter, Endpoint, EndpointDoc, ReadPermission, RESTController, UIRouter
from ._version import APIVersion
LIST_SCHEMA = {
"rule_id": (int, 'Rule ID'),
"rule_name": (str, 'Rule Name'),
"ruleset": (int, 'RuleSet related to the rule'),
"type": (int, 'Type of Rule'),
"min_size": (int, 'Minimum size of Rule'),
"max_size": (int, 'Maximum size of Rule'),
'steps': ([{str}], 'Steps included in the rule')
}
@APIRouter('/crush_rule', Scope.POOL)
@APIDoc("Crush Rule Management API", "CrushRule")
class CrushRule(RESTController):
@EndpointDoc("List Crush Rule Configuration",
responses={200: LIST_SCHEMA})
@RESTController.MethodMap(version=APIVersion(2, 0))
def list(self):
return mgr.get('osd_map_crush')['rules']
@RESTController.MethodMap(version=APIVersion(2, 0))
def get(self, name):
rules = mgr.get('osd_map_crush')['rules']
for r in rules:
if r['rule_name'] == name:
return r
raise NotFound('No such crush rule')
def create(self, name, root, failure_domain, device_class=None):
rule = {
'name': name,
'root': root,
'type': failure_domain,
'class': device_class
}
CephService.send_command('mon', 'osd crush rule create-replicated', **rule)
def delete(self, name):
CephService.send_command('mon', 'osd crush rule rm', name=name)
@UIRouter('/crush_rule', Scope.POOL)
@APIDoc("Dashboard UI helper function; not part of the public API", "CrushRuleUi")
class CrushRuleUi(CrushRule):
@Endpoint()
@ReadPermission
def info(self):
'''Used for crush rule creation modal'''
osd_map = mgr.get_osdmap()
crush = osd_map.get_crush()
crush.dump()
return {
'names': [r['rule_name'] for r in mgr.get('osd_map_crush')['rules']],
'nodes': mgr.get('osd_map_tree')['nodes'],
'roots': crush.find_roots()
}
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