/usr/share/ganeti/2.15/confd-client is in ganeti-2.15 2.15.2-3.
This file is owned by root:root, with mode 0o755.
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# pylint: disable=C0103
"""confd client program
This is can be used to test and debug confd daemon functionality.
"""
import sys
import optparse
import time
from ganeti import constants
from ganeti import cli
from ganeti import utils
from ganeti import pathutils
from ganeti.confd import client as confd_client
USAGE = ("\tconfd-client [--addr=host] [--hmac=key]")
LOG_HEADERS = {
0: "- ",
1: "* ",
2: "",
}
OPTIONS = [
cli.cli_option("--hmac", dest="hmac", default=None,
help="Specify HMAC key instead of reading"
" it from the filesystem",
metavar="<KEY>"),
cli.cli_option("-a", "--address", dest="mc", default="localhost",
help="Server IP to query (default: 127.0.0.1)",
metavar="<ADDRESS>"),
cli.cli_option("-r", "--requests", dest="requests", default=100,
help="Number of requests for the timing tests",
type="int", metavar="<REQUESTS>"),
]
def Log(msg, *args, **kwargs):
"""Simple function that prints out its argument.
"""
if args:
msg = msg % args
indent = kwargs.get("indent", 0)
sys.stdout.write("%*s%s%s\n" % (2 * indent, "",
LOG_HEADERS.get(indent, " "), msg))
sys.stdout.flush()
def LogAtMost(msgs, count, **kwargs):
"""Log at most count of given messages.
"""
for m in msgs[:count]:
Log(m, **kwargs)
if len(msgs) > count:
Log("...", **kwargs)
def Err(msg, exit_code=1):
"""Simple error logging that prints to stderr.
"""
sys.stderr.write(msg + "\n")
sys.stderr.flush()
sys.exit(exit_code)
def Usage():
"""Shows program usage information and exits the program."""
print >> sys.stderr, "Usage:"
print >> sys.stderr, USAGE
sys.exit(2)
class TestClient(object):
"""Confd test client."""
def __init__(self):
"""Constructor."""
self.opts = None
self.cluster_master = None
self.instance_ips = None
self.is_timing = False
self.ParseOptions()
def ParseOptions(self):
"""Parses the command line options.
In case of command line errors, it will show the usage and exit the
program.
"""
parser = optparse.OptionParser(usage="\n%s" % USAGE,
version=("%%prog (ganeti) %s" %
constants.RELEASE_VERSION),
option_list=OPTIONS)
options, args = parser.parse_args()
if args:
Usage()
if options.hmac is None:
options.hmac = utils.ReadFile(pathutils.CONFD_HMAC_KEY)
self.hmac_key = options.hmac
self.mc_list = [options.mc]
self.opts = options
@staticmethod
def _ProcessNotOk(reply, reqtype, is_timing):
Log("Query %s gave non-ok status %s: %s" % (reply.orig_request,
reply.server_reply.status,
reply.server_reply))
if is_timing:
Err("Aborting timing tests")
if reqtype == constants.CONFD_REQ_CLUSTER_MASTER:
Err("Cannot continue after master query failure")
if reqtype == constants.CONFD_REQ_INSTANCES_IPS_LIST:
Err("Cannot continue after instance IP list query failure")
@staticmethod
def _ProcessIpList(answer):
Log("Instance primary IP query: OK")
if not answer:
Log("no IPs received", indent=1)
else:
LogAtMost(answer, 5, indent=1)
@staticmethod
def _ProcessMapping(answer):
Log("Instance IP to node IP query: OK")
if not answer:
Log("no mapping received", indent=1)
else:
LogAtMost(answer, 5, indent=1)
def ConfdCallback(self, reply):
"""Callback for confd queries"""
if reply.type == confd_client.UPCALL_REPLY:
answer = reply.server_reply.answer
reqtype = reply.orig_request.type
if reply.server_reply.status != constants.CONFD_REPL_STATUS_OK:
self._ProcessNotOk(reply, reqtype, self.is_timing)
return
if self.is_timing:
return
if reqtype == constants.CONFD_REQ_PING:
Log("Ping: OK")
elif reqtype == constants.CONFD_REQ_CLUSTER_MASTER:
Log("Master: OK (%s)", answer)
if self.cluster_master is None:
# only assign the first time, in the plain query
self.cluster_master = answer
elif reqtype == constants.CONFD_REQ_NODE_ROLE_BYNAME:
if answer == constants.CONFD_NODE_ROLE_MASTER:
Log("Node role for master: OK",)
else:
Err("Node role for master: wrong: %s" % answer)
elif reqtype == constants.CONFD_REQ_NODE_PIP_LIST:
Log("Node primary ip query: OK")
LogAtMost(answer, 5, indent=1)
elif reqtype == constants.CONFD_REQ_MC_PIP_LIST:
Log("Master candidates primary IP query: OK")
LogAtMost(answer, 5, indent=1)
elif reqtype == constants.CONFD_REQ_INSTANCES_IPS_LIST:
self.instance_ips = self._ProcessIpList(answer)
elif reqtype == constants.CONFD_REQ_NODE_PIP_BY_INSTANCE_IP:
self._ProcessMapping(answer)
else:
Log("Unhandled reply %s, please fix the client", reqtype)
print answer
def DoConfdRequestReply(self, req):
self.confd_counting_callback.RegisterQuery(req.rsalt)
self.confd_client.SendRequest(req, async=False)
while not self.confd_counting_callback.AllAnswered():
if not self.confd_client.ReceiveReply():
Err("Did not receive all expected confd replies")
break
def TestConfd(self):
"""Run confd queries for the cluster.
"""
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.ConfdClient(self.hmac_key,
self.mc_list,
counting_callback)
tests = [
{"type": constants.CONFD_REQ_PING},
{"type": constants.CONFD_REQ_CLUSTER_MASTER},
{"type": constants.CONFD_REQ_CLUSTER_MASTER,
"query": {constants.CONFD_REQQ_FIELDS:
[str(constants.CONFD_REQFIELD_NAME),
str(constants.CONFD_REQFIELD_IP),
str(constants.CONFD_REQFIELD_MNODE_PIP),
]}},
{"type": constants.CONFD_REQ_NODE_ROLE_BYNAME},
{"type": constants.CONFD_REQ_NODE_PIP_LIST},
{"type": constants.CONFD_REQ_MC_PIP_LIST},
{"type": constants.CONFD_REQ_INSTANCES_IPS_LIST,
"query": None},
{"type": constants.CONFD_REQ_NODE_PIP_BY_INSTANCE_IP},
]
for kwargs in tests:
if kwargs["type"] == constants.CONFD_REQ_NODE_ROLE_BYNAME:
assert self.cluster_master is not None
kwargs["query"] = self.cluster_master
elif kwargs["type"] == constants.CONFD_REQ_NODE_PIP_BY_INSTANCE_IP:
kwargs["query"] = {constants.CONFD_REQQ_IPLIST: self.instance_ips}
# pylint: disable=W0142
# used ** magic
req = confd_client.ConfdClientRequest(**kwargs)
self.DoConfdRequestReply(req)
def TestTiming(self):
"""Run timing tests.
"""
# timing tests
if self.opts.requests <= 0:
return
Log("Timing tests")
self.is_timing = True
self.TimingOp("ping", {"type": constants.CONFD_REQ_PING})
self.TimingOp("instance ips",
{"type": constants.CONFD_REQ_INSTANCES_IPS_LIST})
def TimingOp(self, name, kwargs):
"""Run a single timing test.
"""
start = time.time()
for _ in range(self.opts.requests):
# pylint: disable=W0142
req = confd_client.ConfdClientRequest(**kwargs)
self.DoConfdRequestReply(req)
stop = time.time()
per_req = 1000 * (stop - start) / self.opts.requests
Log("%.3fms per %s request", per_req, name, indent=1)
def Run(self):
"""Run all the tests.
"""
self.TestConfd()
self.TestTiming()
def main():
"""Main function.
"""
return TestClient().Run()
if __name__ == "__main__":
main()
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