update

start_server.py

@@ -0,0 +1,66 @@
+import subprocess
+import time
+import socket
+import os
+import logging
+
+from datetime import datetime
+from pathlib import Path
+
+from src.My_Logger.project_logger import LoggerClass
+
+LOG_PATH = Path(__file__).parent / 'logs'
+
+
+def is_port_in_use(port: int) -> bool:
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        return s.connect_ex(('192.168.195.194', port)) == 0
+
+
+def start_server():
+    """
+    launch a micro service using gunicorn
+    :return:
+    """
+    launch_file_name = 'run_service_backend'    # file name of the entrance point
+    pid_path = LOG_PATH / 'pid.txt'
+
+    IP = '192.168.195.194'
+    PORT = 59001
+    WORKER = 1
+    TIME_OUT = 60
+    THREADS = 5
+    logger = LoggerClass().get_log(logging.INFO)
+
+    if is_port_in_use(PORT):
+        logger.error(f'Port {PORT} already in use')
+        return
+
+    now = datetime.now()
+
+    cmd = [
+        "nohup",
+        "/home/armor/anaconda3/envs/py311/bin/gunicorn",
+        "--threads", str(THREADS),
+        "--workers", str(WORKER),
+        "--bind", f"{IP}:{PORT}", f"{launch_file_name}:app",
+        "--timeout", str(TIME_OUT),
+        "--pid", pid_path
+    ]
+    stdout_file = LOG_PATH / f"console_{now.year}-{now.month}-{now.day}.log"
+    pid = subprocess.Popen(cmd, stdout=stdout_file.open('a'), stderr=subprocess.STDOUT, close_fds=True, start_new_session=True).pid
+    time.sleep(5)
+
+    if not is_port_in_use(PORT) or not os.path.exists(pid_path) or str(pid) != pid_path.read_text().strip():
+        logger.error(f'Failed to start server, check {stdout_file} and {pid_path}')
+        print(f">> tail {stdout_file}")
+        subprocess.run(["tail", str(stdout_file)])
+        return
+
+    info_str = f"Server started"
+    logger.info(info_str)
+    logger.info(f"server running at {IP}:{PORT} with pid {pid}")
+
+
+if __name__ == "__main__":
+    start_server()