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import errno
from functools import wraps
import os
import signal
import time
import requests
class TimeoutError(Exception):
pass
def timeout(seconds=10, error_message=os.strerror(errno.ETIME)):
def decorator(func):
def _handle_timeout(signum, frame):
raise TimeoutError(error_message)
def wrapper(*args, **kwargs):
signal.signal(signal.SIGALRM, _handle_timeout)
signal.alarm(seconds)
try:
result = func(*args, **kwargs)
finally:
signal.alarm(0)
return result
return wraps(func)(wrapper)
return decorator
@timeout(30)
def wait_for_marathon():
"""Blocks until marathon is up"""
marathon_service = get_marathon_connection_string()
while True:
print('Connecting to marathon on %s' % marathon_service)
try:
response = requests.get(
'http://%s/ping' % marathon_service, timeout=2)
except (
requests.exceptions.ConnectionError,
requests.exceptions.Timeout,
):
time.sleep(2)
continue
if response.status_code == 200:
print("Marathon is up and running!")
break
def get_marathon_connection_string():
# only reliable way I can detect travis..
if '/travis/' in os.environ.get('PATH'):
return 'localhost:8080'
else:
return "localhost:18080"
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