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.installer.common.vitrage import set_vitrage_host_down_template
  15 from doctor_tests.common.constants import Inspector
  16 from doctor_tests.common.utils import load_json_file
  17 from doctor_tests.common.utils import write_json_file
  18
  19
  20 class LocalInstaller(BaseInstaller):
  21     node_user_name = 'root'
  22
  23     nova_policy_file = '/etc/nova/policy.json'
  24     nova_policy_file_backup = '%s%s' % (nova_policy_file, '.bak')
  25
  26     def __init__(self, conf, log):
  27         super(LocalInstaller, self).__init__(conf, log)
  28         self.policy_modified = False
  29         self.add_policy_file = False
  30
  31     def setup(self):
  32         self.get_ssh_key_from_installer()
  33         self.set_apply_patches()
  34
  35     def cleanup(self):
  36         self.restore_apply_patches()
  37
  38     def get_ssh_key_from_installer(self):
  39         self.log.info('Assuming SSH keys already exchanged with computer for local installer type')
  40         return None
  41
  42     def get_host_ip_from_hostname(self, hostname):
  43         self.log.info('Get host ip from host name in local installer......')
  44
  45         cmd = "getent hosts %s | awk '{ print $1 }'" % (hostname)
  46         server = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
  47         stdout, stderr = server.communicate()
  48         host_ip = stdout.strip().decode("utf-8")
  49
  50         self.log.info('Get host_ip:%s from host_name:%s in local installer' % (host_ip, hostname))
  51         return host_ip
  52
  53     def set_apply_patches(self):
  54         self._set_nova_policy()
  55         if self.conf.inspector.type == Inspector.VITRAGE:
  56             set_vitrage_host_down_template()
  57             os.system('sudo systemctl restart devstack@vitrage-graph.service')
  58
  59     def restore_apply_patches(self):
  60         self._restore_nova_policy()
  61
  62     def _set_nova_policy(self):
  63         host_status_policy = 'os_compute_api:servers:show:host_status'
  64         host_status_rule = 'rule:admin_or_owner'
  65         policy_data = {
  66             'context_is_admin': 'role:admin',
  67             'owner': 'user_id:%(user_id)s',
  68             'admin_or_owner': 'rule:context_is_admin or rule:owner',
  69             host_status_policy: host_status_rule
  70         }
  71
  72         if os.path.isfile(self.nova_policy_file):
  73             data = load_json_file(self.nova_policy_file)
  74             if host_status_policy in data:
  75                 rule_origion = data[host_status_policy]
  76                 if host_status_rule == rule_origion:
  77                     self.log.info('Do not need to modify nova policy.')
  78                     self.policy_modified = False
  79                 else:
  80                     # update the host_status_policy
  81                     data[host_status_policy] = host_status_rule
  82                     self.policy_modified = True
  83             else:
  84                 # add the host_status_policy, if the admin_or_owner is not
  85                 # defined, add it also
  86                 for policy, rule in policy_data.items():
  87                     if policy not in data:
  88                         data[policy] = rule
  89                 self.policy_modified = True
  90             if self.policy_modified:
  91                 self.log.info('Nova policy is Modified.')
  92                 shutil.copyfile(self.nova_policy_file,
  93                                 self.nova_policy_file_backup)
  94         else:
  95             # file does not exit, create a new one and add the policy
  96             self.log.info('Nova policy file not exist. Creating a new one')
  97             data = policy_data
  98             self.add_policy_file = True
  99
 100         if self.policy_modified or self.add_policy_file:
 101             write_json_file(self.nova_policy_file, data)
 102             os.system('sudo systemctl restart devstack@n-api.service')
 103
 104     def _restore_nova_policy(self):
 105         if self.policy_modified:
 106             shutil.copyfile(self.nova_policy_file_backup, self.nova_policy_file)
 107             os.remove(self.nova_policy_file_backup)
 108         elif self.add_policy_file:
 109             os.remove(self.nova_policy_file)
 110
 111         if self.add_policy_file or self.policy_modified:
 112             os.system('sudo systemctl restart devstack@n-api.service')
 113             self.add_policy_file = False
 114             self.policy_modified = False