doctor_tests/installer/local.py

   1 ##############################################################################
   2 # Copyright (c) 2017 ZTE Corporation and others.
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9 import os
  10 import shutil
  11 import subprocess
  12
  13 from doctor_tests.installer.base import BaseInstaller
  14 from doctor_tests.common.utils import load_json_file
  15 from doctor_tests.common.utils import write_json_file
  16
  17
  18 class LocalInstaller(BaseInstaller):
  19     node_user_name = 'root'
  20
  21     nova_policy_file = '/etc/nova/policy.json'
  22     nova_policy_file_backup = '%s%s' % (nova_policy_file, '.bak')
  23
  24     def __init__(self, conf, log):
  25         super(LocalInstaller, self).__init__(conf, log)
  26         self.policy_modified = False
  27         self.add_policy_file = False
  28
  29     def setup(self):
  30         self.get_ssh_key_from_installer()
  31         self.set_apply_patches()
  32
  33     def cleanup(self):
  34         self.restore_apply_patches()
  35
  36     def get_ssh_key_from_installer(self):
  37         self.log.info('Assuming SSH keys already exchanged with computer for local installer type')
  38         return None
  39
  40     def get_host_ip_from_hostname(self, hostname):
  41         self.log.info('Get host ip from host name in local installer......')
  42
  43         cmd = "getent hosts %s | awk '{ print $1 }'" % (hostname)
  44         server = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
  45         stdout, stderr = server.communicate()
  46         host_ip = stdout.strip()
  47
  48         self.log.info('Get host_ip:%s from host_name:%s in local installer' % (host_ip, hostname))
  49         return host_ip
  50
  51     def set_apply_patches(self):
  52         self._set_nova_policy()
  53
  54     def restore_apply_patches(self):
  55         self._restore_nova_policy()
  56
  57     def _set_nova_policy(self):
  58         host_status_policy = 'os_compute_api:servers:show:host_status'
  59         host_status_rule = 'rule:admin_or_owner'
  60         policy_data = {
  61             'context_is_admin': 'role:admin',
  62             'owner': 'user_id:%(user_id)s',
  63             'admin_or_owner': 'rule:context_is_admin or rule:owner',
  64             host_status_policy: host_status_rule
  65         }
  66
  67         if os.path.isfile(self.nova_policy_file):
  68             data = load_json_file(self.nova_policy_file)
  69             if host_status_policy in data:
  70                 rule_origion = data[host_status_policy]
  71                 if host_status_rule == rule_origion:
  72                     self.log.info('Do not need to modify nova policy.')
  73                     self.policy_modified = False
  74                 else:
  75                     # update the host_status_policy
  76                     data[host_status_policy] = host_status_rule
  77                     self.policy_modified = True
  78             else:
  79                 # add the host_status_policy, if the admin_or_owner is not
  80                 # defined, add it also
  81                 for policy, rule in policy_data.items():
  82                     if policy not in data:
  83                         data[policy] = rule
  84                 self.policy_modified = True
  85             if self.policy_modified:
  86                 self.log.info('Nova policy is Modified.')
  87                 shutil.copyfile(self.nova_policy_file,
  88                                 self.nova_policy_file_backup)
  89         else:
  90             # file does not exit, create a new one and add the policy
  91             self.log.info('Nova policy file not exist. Creating a new one')
  92             data = policy_data
  93             self.add_policy_file = True
  94
  95         if self.policy_modified or self.add_policy_file:
  96             write_json_file(self.nova_policy_file, data)
  97             os.system('screen -S stack -p n-api -X stuff "^C^M^[[A^M"')
  98
  99     def _restore_nova_policy(self):
 100         if self.policy_modified:
 101             shutil.copyfile(self.nova_policy_file_backup, self.nova_policy_file)
 102             os.remove(self.nova_policy_file_backup)
 103         elif self.add_policy_file:
 104             os.remove(self.nova_policy_file)
 105
 106         if self.add_policy_file or self.policy_modified:
 107             os.system('screen -S stack -p n-api -X stuff "^C^M^[[A^M"')
 108             self.add_policy_file = False
 109             self.policy_modified = False