added lf_tools for managing lanforge

Signed-off-by: shivamcandela <shivam.thakur@candelatech.com>

tools/lf_tools.py

@@ -0,0 +1,70 @@
+#!/usr/bin/python3.9
+"""
+
+    lf_tools : Tools for LANforge
+                reboot, run_cmd, etc
+    ./lf_tools --host 10.28.3.8 --port 22 --username root --password lanforge --action reboot
+    ./lf_tools --host 10.28.3.8 --port 22 --username root --password lanforge --action run_cmd --cmd ls
+
+"""
+import argparse
+import paramiko
+
+
+class LFTools:
+
+    def __init__(self, host="", port=22, username="root", password="lanforge"):
+        self.host = host
+        self.port = port
+        self.username = username
+        self.password = password
+
+    def ssh_cli_connect(self):
+        client = paramiko.SSHClient()
+        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        print("Connecting to LANforge: %s@%s:%s" % (
+            self.username, self.host, self.port))
+        client.connect(self.host, username=self.username, password=self.password,
+                       port=self.port, timeout=10, allow_agent=False, banner_timeout=200)
+
+        return client
+
+    def run_cmd(self, cmd):
+        client = self.ssh_cli_connect()
+        stdin, stdout, stderr = client.exec_command(cmd)
+        output = "Output: " + str(stdout.read())
+        error = "Error: " + str(stderr.read())
+        client.close()
+        return output, error
+
+    def run_action(self, action, cmd):
+        if action == "reboot":
+            output, error = self.run_cmd("reboot")
+            print(output, error)
+        elif action == "run_cmd":
+            output, error = self.run_cmd(cmd)
+            print(output, error)
+        else:
+            print("Invalid Action")
+
+
+def main():
+    parser = argparse.ArgumentParser(prog="lf_utils",
+                                     formatter_class=argparse.RawTextHelpFormatter,
+                                     allow_abbrev=True,
+                                     epilog="About lf_tools.py",
+                                     description="Tools for LANforge System")
+    parser.add_argument('--host', type=str, help=' --host : IP Address f LANforge System', default="localhost")
+    parser.add_argument('--port', type=int, help='--passwd of dut', default=22)
+    parser.add_argument('--username', type=str, help='--username to use on LANforge', default="root")
+    parser.add_argument('--password', type=str, help='--password to the given username', default="lanforge")
+    parser.add_argument('--action', type=str, help='--action to perform'
+                                                   'reboot | run_cmd', default="run_cmd")
+    parser.add_argument('--cmd', type=str, help='--cmd : used when action is "run_cmd"', default="pwd")
+    args = parser.parse_args()
+    lf_tools = LFTools(host=args.host, port=args.port, username=args.username, password=args.password)
+    lf_tools.run_action(args.action, args.cmd)
+
+
+if __name__ == '__main__':
+    main()