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Code Issues Releases Activity

Use tenacity for resolver retries

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This commit is contained in:
Tim Möhlmann
2018-10-07 00:32:05 +03:00
parent d6c386651d
commit c457ccfa60
6 changed files with 27 additions and 46 deletions
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26
core/dovecot/start.py
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@@ -4,27 +4,19 @@ import jinja2
import os
import socket
import glob
import time
from tenacity import retry
convert = lambda src, dst: open(dst, "w").write(jinja2.Template(open(src).read()).render(**os.environ))
# Actual startup script
i = 0
t = 10
while True:
i += 1
try:
os.environ["FRONT_ADDRESS"] = socket.gethostbyname(os.environ.get("FRONT_ADDRESS", "front"))
os.environ["REDIS_ADDRESS"] = socket.gethostbyname(os.environ.get("REDIS_ADDRESS", "redis"))
if os.environ["WEBMAIL"] != "none":
os.environ["WEBMAIL_ADDRESS"] = socket.gethostbyname(os.environ.get("WEBMAIL_ADDRESS", "webmail"))
except socket.gaierror as err:
if i >= t:
raise
time.sleep(10)
continue
break
@retry(stop=stop_after_attempt(10), wait=wait_random(min=2, max=5))
def resolve():
os.environ["FRONT_ADDRESS"] = socket.gethostbyname(os.environ.get("FRONT_ADDRESS", "front"))
os.environ["REDIS_ADDRESS"] = socket.gethostbyname(os.environ.get("REDIS_ADDRESS", "redis"))
if os.environ["WEBMAIL"] != "none":
os.environ["WEBMAIL_ADDRESS"] = socket.gethostbyname(os.environ.get("WEBMAIL_ADDRESS", "webmail"))
# Actual startup script
resolve()
for dovecot_file in glob.glob("/conf/*"):
convert(dovecot_file, os.path.join("/etc/dovecot", os.path.basename(dovecot_file)))