def BurnConfd(self):
"""Run confd queries for our instances.
The following confd queries are tested:
- CONFD_REQ_PING: simple ping
- CONFD_REQ_CLUSTER_MASTER: cluster master
- CONFD_REQ_NODE_ROLE_BYNAME: node role, for the master
"""
Log("Checking confd results")
filter_callback = confd_client.ConfdFilterCallback(self.ConfdCallback)
counting_callback = confd_client.ConfdCountingCallback(filter_callback)
self.confd_counting_callback = counting_callback
self.confd_client = confd_client.GetConfdClient(counting_callback)
req = confd_client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.DoConfdRequestReply(req)
req = confd_client.ConfdClientRequest(
type=constants.CONFD_REQ_CLUSTER_MASTER)
self.DoConfdRequestReply(req)
req = confd_client.ConfdClientRequest(
type=constants.CONFD_REQ_NODE_ROLE_BYNAME,
query=self.cluster_info["master"])
self.DoConfdRequestReply(req)
def ListDrbd(opts, args):
"""Modifies a node.
@param opts: the command line options selected by the user
@type args: list
@param args: should contain only one element, the node name
@rtype: int
@return: the desired exit code
"""
if len(args) != 1:
ToStderr("Please give one (and only one) node.")
return constants.EXIT_FAILURE
status = ReplyStatus()
def ListDrbdConfdCallback(reply):
"""Callback for confd queries"""
if reply.type == confd_client.UPCALL_REPLY:
answer = reply.server_reply.answer
reqtype = reply.orig_request.type
if reqtype == constants.CONFD_REQ_NODE_DRBD:
if reply.server_reply.status != constants.CONFD_REPL_STATUS_OK:
ToStderr("Query gave non-ok status '%s': %s" %
(reply.server_reply.status,
reply.server_reply.answer))
status.failure = True
return
if not confd.HTNodeDrbd(answer):
ToStderr("Invalid response from server: expected %s, got %s",
confd.HTNodeDrbd, answer)
status.failure = True
else:
status.failure = False
status.answer = answer
else:
ToStderr("Unexpected reply %s!?", reqtype)
status.failure = True
node = args[0]
hmac = utils.ReadFile(pathutils.CONFD_HMAC_KEY)
filter_callback = confd_client.ConfdFilterCallback(ListDrbdConfdCallback)
counting_callback = confd_client.ConfdCountingCallback(filter_callback)
cf_client = confd_client.ConfdClient(hmac, [constants.IP4_ADDRESS_LOCALHOST],
counting_callback)
req = confd_client.ConfdClientRequest(type=constants.CONFD_REQ_NODE_DRBD,
query=node)
def DoConfdRequestReply(req):
counting_callback.RegisterQuery(req.rsalt)
cf_client.SendRequest(req, async=False)
while not counting_callback.AllAnswered():
if not cf_client.ReceiveReply():
ToStderr("Did not receive all expected confd replies")
break
DoConfdRequestReply(req)
if status.failure:
return constants.EXIT_FAILURE
fields = ["node", "minor", "instance", "disk", "role", "peer"]
if opts.no_headers:
headers = None
else:
headers = {"node": "Node", "minor": "Minor", "instance": "Instance",
"disk": "Disk", "role": "Role", "peer": "PeerNode"}
data = GenerateTable(separator=opts.separator, headers=headers,
fields=fields, data=sorted(status.answer),
numfields=["minor"])
for line in data:
ToStdout(line)
return constants.EXIT_SUCCESS
