You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
#!/usr/bin/python3
|
|
"""
|
|
Certificate watcher which reloads nginx or reconfigures it, depending on what
|
|
happens to externally supplied certificates. Only executed by start.py in case
|
|
of TLS_FLAVOR=[mail, cert]
|
|
"""
|
|
|
|
from os.path import exists, split as path_split
|
|
from os import system
|
|
import time
|
|
from watchdog.observers import Observer
|
|
from watchdog.events import FileSystemEventHandler, FileDeletedEvent, \
|
|
FileCreatedEvent, FileModifiedEvent, FileMovedEvent
|
|
|
|
class ChangeHandler(FileSystemEventHandler):
|
|
"watchdog-handler listening on any event, executing the correct configuration/reload steps"
|
|
@staticmethod
|
|
def reload_nginx():
|
|
"merely reload nginx without re-configuring everything"
|
|
if exists("/var/run/nginx.pid"):
|
|
print("Reloading a running nginx")
|
|
system("nginx -s reload")
|
|
|
|
@staticmethod
|
|
def reexec_config():
|
|
"execute a reconfiguration of the system, which also reloads"
|
|
print("Reconfiguring system")
|
|
system("/config.py")
|
|
|
|
def on_any_event(self, event):
|
|
"event-listener checking if the affected files are the cert-files we're interested in"
|
|
if event.is_directory:
|
|
return
|
|
|
|
filename = path_split(event.src_path)[-1]
|
|
if isinstance(event, FileMovedEvent):
|
|
filename = path_split(event.dest_path)[-1]
|
|
|
|
if filename in ['cert.pem', 'key.pem']:
|
|
# all cases except for FileModified need re-configure
|
|
if isinstance(event, (FileCreatedEvent, FileMovedEvent, FileDeletedEvent)):
|
|
ChangeHandler.reexec_config()
|
|
# file modification needs only a nginx reload without config.py
|
|
elif isinstance(event, FileModifiedEvent):
|
|
ChangeHandler.reload_nginx()
|
|
# cert files have been moved away, re-configure
|
|
elif isinstance(event, FileMovedEvent) and path_split(event.src_path)[-1] in ['cert.pem', 'key.pem']:
|
|
ChangeHandler.reexec_config()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
observer = Observer()
|
|
handler = ChangeHandler()
|
|
observer.schedule(handler, "/certs", recursive=False)
|
|
observer.start()
|
|
|
|
try:
|
|
while True:
|
|
time.sleep(1)
|
|
except KeyboardInterrupt:
|
|
observer.stop()
|
|
|
|
observer.join()
|