| #!/usr/bin/env python |
| # -*- coding: utf-8 -*- |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| import socket |
| |
| def whoami(): |
| """Returns the FQDN of the box the program runs on""" |
| try: |
| # Get local hostname (what you see in the terminal) |
| local_hostname = socket.gethostname() |
| # Get all address info segments for the local host |
| canonical_names = [ |
| address[3] |
| for address in socket.getaddrinfo(local_hostname, None, 0, socket.SOCK_DGRAM, 0, socket.AI_CANONNAME) |
| if address[3] |
| ] |
| # For each canonical name, see if we find $local_hostname.something.tld, and if so, return that. |
| if canonical_names: |
| prefix = str(local_hostname) + "." |
| for name in canonical_names: |
| if name.startswith(prefix): |
| return name |
| # No match, just return the first occurrence. |
| return canonical_names[0] |
| except socket.error: |
| pass |
| # Fall back to socket.getfqdn |
| return socket.getfqdn() |
| |
| if __name__ == "__main__": |
| print(whoami()) |
| |