Files

65 lines
1.6 KiB
Python

import collections
import json
from .common import assert_command, exec_command
def wait_for_service(service_name, number_of_services=1, max_count=300):
"""Wait for service to register with Mesos
:param service_name: name of service
:type service_name: str
:param number_of_services: number of services with that name
:type number_of_services: int
:param max_count: max number of seconds to wait
:type max_count: int
:rtype: None
"""
count = 0
while count < max_count:
services = get_services()
if (len([service for service in services
if service['name'] == service_name]) >= number_of_services):
return
count += 1
def get_services(expected_count=None, args=[]):
"""Get services
:param expected_count: assert exactly this number of services are
running
:type expected_count: int | None
:param args: cli arguments
:type args: [str]
:returns: services
:rtype: [dict]
"""
returncode, stdout, stderr = exec_command(
['dcos', 'service', '--json'] + args)
assert returncode == 0
assert stderr == b''
services = json.loads(stdout.decode('utf-8'))
assert isinstance(services, collections.Sequence)
if expected_count is not None:
assert len(services) == expected_count
return services
def service_shutdown(service_id):
"""Shuts down a service using the command line program
:param service_id: the id of the service
:type: service_id: str
:rtype: None
"""
assert_command(['dcos', 'service', 'shutdown', service_id])