| #!/usr/bin/env python |
| |
| ''' |
| 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 |
| import subprocess |
| import urllib2 |
| import AmbariConfig |
| import logging |
| import traceback |
| |
| logger = logging.getLogger() |
| |
| def hostname(): |
| config = AmbariConfig.config |
| try: |
| scriptname = config.get('agent', 'hostname_script') |
| try: |
| osStat = subprocess.Popen([scriptname], stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| out, err = osStat.communicate() |
| if (0 == osStat.returncode and 0 != len(out.strip())): |
| return out.strip() |
| else: |
| return socket.getfqdn() |
| except: |
| return socket.getfqdn() |
| except: |
| return socket.getfqdn() |
| |
| def public_hostname(): |
| config = AmbariConfig.config |
| out = '' |
| err = '' |
| try: |
| if config.has_option('agent', 'public_hostname_script'): |
| scriptname = config.get('agent', 'public_hostname_script') |
| output = subprocess.Popen([scriptname], stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| out, err = output.communicate() |
| if (0 == output.returncode and 0 != len(out.strip())): |
| return out.strip() |
| except: |
| #ignore for now. |
| trace_info = traceback.format_exc() |
| logger.info("Error using the scriptname:" + trace_info |
| + " :out " + out + " :err " + err) |
| logger.info("Defaulting to fqdn.") |
| |
| # future - do an agent entry for this too |
| try: |
| handle = urllib2.urlopen('http://169.254.169.254/latest/meta-data/public-hostname', '', 2) |
| str = handle.read() |
| handle.close() |
| return str |
| except Exception, e: |
| return socket.getfqdn() |
| |
| def main(argv=None): |
| print hostname() |
| print public_hostname() |
| |
| if __name__ == '__main__': |
| main() |