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redhat.py
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Editing: redhat.py
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# # Copyright 2018 Microsoft Corporation # # Licensed 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. # # Requires Python 2.6+ and Openssl 1.0+ # import os import re import pwd import shutil import socket import array import struct import fcntl import time import base64 import azurelinuxagent.common.conf as conf import azurelinuxagent.common.logger as logger from azurelinuxagent.common.future import ustr, bytebuffer from azurelinuxagent.common.exception import OSUtilError, CryptError import azurelinuxagent.common.utils.fileutil as fileutil import azurelinuxagent.common.utils.shellutil as shellutil import azurelinuxagent.common.utils.textutil as textutil from azurelinuxagent.common.utils.cryptutil import CryptUtil from azurelinuxagent.common.osutil.default import DefaultOSUtil class Redhat6xOSUtil(DefaultOSUtil): def __init__(self): super(Redhat6xOSUtil, self).__init__() self.jit_enabled = True def start_network(self): return shellutil.run("/sbin/service networking start", chk_err=False) def restart_ssh_service(self): return shellutil.run("/sbin/service sshd condrestart", chk_err=False) def stop_agent_service(self): return shellutil.run("/sbin/service {0} stop".format(self.service_name), chk_err=False) def start_agent_service(self): return shellutil.run("/sbin/service {0} start".format(self.service_name), chk_err=False) def register_agent_service(self): return shellutil.run("chkconfig --add {0}".format(self.service_name), chk_err=False) def unregister_agent_service(self): return shellutil.run("chkconfig --del {0}".format(self.service_name), chk_err=False) def openssl_to_openssh(self, input_file, output_file): pubkey = fileutil.read_file(input_file) try: cryptutil = CryptUtil(conf.get_openssl_cmd()) ssh_rsa_pubkey = cryptutil.asn1_to_ssh(pubkey) except CryptError as e: raise OSUtilError(ustr(e)) fileutil.append_file(output_file, ssh_rsa_pubkey) # Override def get_dhcp_pid(self): return self._get_dhcp_pid(["pidof", "dhclient"]) def set_hostname(self, hostname): """ Set /etc/sysconfig/network """ fileutil.update_conf_file('/etc/sysconfig/network', 'HOSTNAME', 'HOSTNAME={0}'.format(hostname)) shellutil.run("hostname {0}".format(hostname), chk_err=False) def set_dhcp_hostname(self, hostname): ifname = self.get_if_name() filepath = "/etc/sysconfig/network-scripts/ifcfg-{0}".format(ifname) fileutil.update_conf_file(filepath, 'DHCP_HOSTNAME', 'DHCP_HOSTNAME={0}'.format(hostname)) def get_dhcp_lease_endpoint(self): return self.get_endpoint_from_leases_path('/var/lib/dhclient/dhclient-*.leases') class RedhatOSUtil(Redhat6xOSUtil): def __init__(self): super(RedhatOSUtil, self).__init__() self.service_name = self.get_service_name() def set_hostname(self, hostname): """ Unlike redhat 6.x, redhat 7.x will set hostname via hostnamectl Due to a bug in systemd in Centos-7.0, if this call fails, fallback to hostname. """ hostnamectl_cmd = "hostnamectl set-hostname {0} --static".format(hostname) if shellutil.run(hostnamectl_cmd, chk_err=False) != 0: logger.warn("[{0}] failed, attempting fallback".format(hostnamectl_cmd)) DefaultOSUtil.set_hostname(self, hostname) def publish_hostname(self, hostname): """ Restart NetworkManager first before publishing hostname """ shellutil.run("service NetworkManager restart") super(RedhatOSUtil, self).publish_hostname(hostname) def register_agent_service(self): return shellutil.run("systemctl enable {0}".format(self.service_name), chk_err=False) def unregister_agent_service(self): return shellutil.run("systemctl disable {0}".format(self.service_name), chk_err=False) def openssl_to_openssh(self, input_file, output_file): DefaultOSUtil.openssl_to_openssh(self, input_file, output_file) def get_dhcp_lease_endpoint(self): # dhclient endpoint = self.get_endpoint_from_leases_path('/var/lib/dhclient/dhclient-*.lease') if endpoint is None: # NetworkManager endpoint = self.get_endpoint_from_leases_path('/var/lib/NetworkManager/dhclient-*.lease') return endpoint