openstack-helm/ceph/templates/bin/_check_zombie_mons.py.tpl
Pete Birley f398d73c53 Ceph: Cleanup entrypoint scripts
This PS cleans up the entrypoint scripts to remove unrequired functions.

Change-Id: Ibc445e422c1ebad972de59b47955511d14dd6d3c
2017-09-05 16:34:02 -04:00

51 lines
2.3 KiB
Smarty

#!/usr/bin/python2
import re
import os
import subprocess
import json
MON_REGEX = r"^\d: ([0-9\.]*):\d+/\d* mon.([^ ]*)$"
# kubctl_command = 'kubectl get pods --namespace=${NAMESPACE} -l component=mon -l application=ceph -o template --template="{ {{"}}"}}range .items{{"}}"}} \\"{{"}}"}}.metadata.name{{"}}"}}\\": \\"{{"}}"}}.status.podIP{{"}}"}}\\" , {{"}}"}}end{{"}}"}} }"'
if int(os.getenv('K8S_HOST_NETWORK', 0)) > 0:
kubectl_command = 'kubectl get pods --namespace=${NAMESPACE} -l component=mon -l application=ceph -o template --template="{ {{"}}"}}range \$i, \$v := .items{{"}}"}} {{"}}"}} if \$i{{"}}"}} , {{"}}"}} end {{"}}"}} \\"{{"}}"}}\$v.spec.nodeName{{"}}"}}\\": \\"{{"}}"}}\$v.status.podIP{{"}}"}}\\" {{"}}"}}end{{"}}"}} }"'
else:
kubectl_command = 'kubectl get pods --namespace=${NAMESPACE} -l component=mon -l application=ceph -o template --template="{ {{"}}"}}range \$i, \$v := .items{{"}}"}} {{"}}"}} if \$i{{"}}"}} , {{"}}"}} end {{"}}"}} \\"{{"}}"}}\$v.metadata.name{{"}}"}}\\": \\"{{"}}"}}\$v.status.podIP{{"}}"}}\\" {{"}}"}}end{{"}}"}} }"'
monmap_command = "ceph --cluster=${CLUSTER} mon getmap > /tmp/monmap && monmaptool -f /tmp/monmap --print"
def extract_mons_from_monmap():
monmap = subprocess.check_output(monmap_command, shell=True)
mons = {}
for line in monmap.split("\n"):
m = re.match(MON_REGEX, line)
if m is not None:
mons[m.group(2)] = m.group(1)
return mons
def extract_mons_from_kubeapi():
kubemap = subprocess.check_output(kubectl_command, shell=True)
return json.loads(kubemap)
current_mons = extract_mons_from_monmap()
expected_mons = extract_mons_from_kubeapi()
print "current mons:", current_mons
print "expected mons:", expected_mons
for mon in current_mons:
removed_mon = False
if not mon in expected_mons:
print "removing zombie mon ", mon
subprocess.call(["ceph", "--cluster", os.environ["CLUSTER"], "mon", "remove", mon])
removed_mon = True
elif current_mons[mon] != expected_mons[mon]: # check if for some reason the ip of the mon changed
print "ip change dedected for pod ", mon
subprocess.call(["kubectl", "--namespace", os.environ["CLUSTER"], "delete", "pod", mon])
removed_mon = True
print "deleted mon %s via the kubernetes api" % mon
if not removed_mon:
print "no zombie mons found ..."