Add script to establish SSH daemon tunnels

command_daemon/start.py

@@ -0,0 +1,23 @@
+import sys, subprocess
+
+stfu = open("/dev/null", "w")
+
+def run_command(args):
+	pr = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	data = pr.communicate()
+	pr.wait()
+	return pr.returncode
+
+host = sys.argv[1]
+user = sys.argv[2]
+port = int(sys.argv[3])
+keyfile = sys.argv[4]
+session_key = sys.argv[5]
+
+if run_command(["ssh", "%s@%s" % (user, host), "-i", keyfile, "cd /etc/cvm/command_daemon; echo '%s' > session_key && ./command_daemon" % session_key]) == 0:
+	if run_command(["autossh", "-f", "-i", keyfile, "-M", str(port + 1), "%s@%s" % (user, host), "-L", "%s:localhost:3434" % port, "-N"]) == 0:
+		exit(0)
+	else:
+		sys.stderr.write("Failed to establish tunnel.\n")
+else:
+	sys.stderr.write("Failed to start daemon.\n")