Put private key out of config file, specify the path to the private key as a commandline argument

asserver.py

@@ -84,12 +84,13 @@ if __name__ == "__main__":
     # commandline arguments
     argp = ArgumentParser()
     argp.add_argument("config", type=Path, help="The path to the config file")
+    argp.add_argument("pkey", type=Path, help="The path to the ssh private key")
     args = argp.parse_args()
     # read config
     config = yaml.safe_load(args.config.read_text())
     config_host = str(config["host"])
     config_port = int(config["port"])
-    config_private_key = asyncssh.import_private_key(config["private_key"])
+    config_private_key = asyncssh.import_private_key(args.pkey.read_text())
     server_public_key = config_private_key.export_public_key("openssh").decode().strip("\n\r")
     stderr.write(f"Server public key is \"{server_public_key}\"\n")
     stderr.flush()

example_config.yml

@@ -5,11 +5,3 @@ clients:
   # This are just examples. Please generate your own keypair for each client you want to add
   example1: ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFY33xLzFiLk5GnNu2Bm8Ns3TMSILtU6p1WItgy6sPMP
   example2: ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMDV1fTeb7PiYVnqzGTQzdw5r3VPSaDFgfoPm1GD6HaR
-private_key: | # Change this!!!
-  -----BEGIN OPENSSH PRIVATE KEY-----
-  b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
-  QyNTUxOQAAACDtzTutk/iImRHKDY2CBwoQab6BfE0ppM3/0wNVbvJEzgAAAJCANLL6gDSy
-  +gAAAAtzc2gtZWQyNTUxOQAAACDtzTutk/iImRHKDY2CBwoQab6BfE0ppM3/0wNVbvJEzg
-  AAAECpsT0qdquxr8MUe1zltF1ttE3Ean52CpYROv0WkOcmle3NO62T+IiZEcoNjYIHChBp
-  voF8TSmkzf/TA1Vu8kTOAAAACmp1bGlhbkBwYzEBAgM=
-  -----END OPENSSH PRIVATE KEY-----