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503b0e9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | #!/usr/bin/env python3
import os, signal, socket, subprocess, sys, time
DBOPS_ROOT = os.environ.get('DBOPS_ROOT', '/data/adaptai/platform/dbops')
CFG = os.path.join(DBOPS_ROOT, 'run', 'janusgraph', 'gremlin-server.runtime.yaml')
BIN_DIR = os.path.join(DBOPS_ROOT, 'binaries', 'janusgraph', 'bin')
STARTER = os.path.join(DBOPS_ROOT, 'tools', 'start_janusgraph_daemon.sh')
stop_requested = False
def handle_signal(signum, frame):
global stop_requested
stop_requested = True
signal.signal(signal.SIGTERM, handle_signal)
signal.signal(signal.SIGINT, handle_signal)
def port_open(host='127.0.0.1', port=17002, timeout=1.0):
try:
with socket.create_connection((host, port), timeout=timeout):
return True
except Exception:
return False
def stop_jg():
for name in ('gremlin-server.sh', 'janusgraph-server.sh'):
p = os.path.join(BIN_DIR, name)
if os.path.exists(p):
try:
subprocess.run([p, 'stop', CFG], check=False, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
except Exception:
pass
def ensure_started():
# Render + start (daemon)
subprocess.run([STARTER], check=True)
def main():
ensure_started()
# Monitor
while not stop_requested:
if not port_open():
# Exit non-zero to let Supervisor restart us
sys.exit(1)
time.sleep(2)
# Stop requested
stop_jg()
sys.exit(0)
if __name__ == '__main__':
main()
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