diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..c349505
Binary files /dev/null and b/.DS_Store differ
diff --git a/sijapi.15s.py b/sijapi.15s.py
old mode 100644
new mode 100755
index 3103726..7856e8f
--- a/sijapi.15s.py
+++ b/sijapi.15s.py
@@ -45,7 +45,26 @@ def run_ssh_command(server, command):
     ssh = paramiko.SSHClient()
     ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
     try:
-        ssh.connect(server['ts_ip'], port=server['ssh_port'], username=server['ssh_user'], password=server['ssh_pass'])
+        # Determine authentication method
+        if 'ssh_key' in server:
+            # Use SSH key authentication
+            ssh.connect(
+                server['ts_ip'], 
+                port=server['ssh_port'], 
+                username=server['ssh_user'],
+                key_filename=server['ssh_key']
+            )
+        elif 'ssh_pass' in server:
+            # Use password authentication
+            ssh.connect(
+                server['ts_ip'], 
+                port=server['ssh_port'], 
+                username=server['ssh_user'],
+                password=server['ssh_pass']
+            )
+        else:
+            raise ValueError("Neither ssh_key nor ssh_pass provided in server configuration")
+    
         stdin, stdout, stderr = ssh.exec_command(command)
         result = stdout.read().decode().strip()
         error = stderr.read().decode().strip()
@@ -58,6 +77,7 @@ def run_ssh_command(server, command):
     finally:
         ssh.close()
 
+
 def check_health(ip, port):
     try:
         response = requests.get(f"http://{ip}:{port}/health", timeout=5, verify=False)