def show_leader(self, json_):
"""
Returns the Marathon leader in the cluster
:param json_: output json if True
:type json_: bool
:returns: process return code
:rtype: int
"""
hosts = mesos.MesosDNSClient().hosts('marathon.mesos')
leader = hosts[0]
if json_:
emitter.publish(leader)
else:
table = tables.dns_table(hosts)
emitter.publish(table)
return 0
def _dns_lookup(dns_name, json_):
"""
Returns the IP of the dns-name in the cluster
:param dns_name: dns name to lookup
:type dns_name: string
:param json_: If true, output json.
Otherwise, output a human readable table.
:type json_: bool
"""
ips = mesos.MesosDNSClient().hosts(dns_name)
if json_:
emitter.publish(ips)
else:
table = tables.dns_table(ips)
output = six.text_type(table)
if output:
emitter.publish(output)
return 0