Add sample template file (#24)

Signed-off-by: Tianhao He <tianhao64@users.noreply.github.com>

samples/vsphere/common/sample_template.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+
+"""
+* *******************************************************
+* Copyright (c) VMware, Inc. 2017. All Rights Reserved.
+* SPDX-License-Identifier: MIT
+* *******************************************************
+*
+* DISCLAIMER. THIS PROGRAM IS PROVIDED TO YOU "AS IS" WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, WHETHER ORAL OR WRITTEN,
+* EXPRESS OR IMPLIED. THE AUTHOR SPECIFICALLY DISCLAIMS ANY IMPLIED
+* WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY,
+* NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
+"""
+
+__author__ = 'VMware, Inc.'
+__vcenter_version__ = '6.5+'
+
+import atexit
+
+from com.vmware.vcenter_client import VM
+from samples.vsphere.common import vapiconnect
+from samples.vsphere.common.sample_util import parse_cli_args
+
+
+class Sample:
+    """
+    Demonstrates getting list of VMs present in vCenter
+
+    Sample Prerequisites:
+        - vCenter
+    """
+
+    def __init__(self):
+        self.vm_service = None  # Service used by the sample code.
+        self.cleardata = None
+
+    def setup(self):
+        server, username, password, cleardata, skip_verification = \
+            parse_cli_args()
+        stub_config = vapiconnect.connect(server, username, password,
+                                          skip_verification)
+        self.vm_service = VM(stub_config)
+        self.cleardata = cleardata
+        atexit.register(vapiconnect.logout, stub_config)
+
+    def run(self):
+        vms = self.vm_service.list()
+        print(vms)
+
+    def cleanup(self):
+        if self.cleardata:
+            pass
+
+
+def main():
+    sample = Sample()
+    sample.setup()
+    sample.run()
+    sample.cleanup()
+
+
+# Start program
+if __name__ == '__main__':
+    main()