refactor apex installer

JIRA: DOCTOR-100

Change-Id: I684071d35aac99ad1f5b65ae74e0a98ac726af35
Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

8 files changed, 268 insertions, 5 deletions

diff --git a/tests/installer/__init__.py b/tests/installer/__init__.py
index 491543c8..bb0e452d 100644
--- a/tests/installer/__init__.py
+++ b/tests/installer/__init__.py
@@ -14,7 +14,7 @@ from oslo_utils import importutils
 OPTS = [
     cfg.StrOpt('type',
                default=os.environ.get('INSTALLER_TYPE', 'local'),
-               choices=['local'],
+               choices=['local', 'apex'],
                help='the type of installer',
                required=True),
     cfg.StrOpt('ip',
@@ -28,7 +28,8 @@ OPTS = [
 
 
 _installer_name_class_mapping = {
-    'local': 'installer.local.LocalInstaller'
+    'local': 'installer.local.LocalInstaller',
+    'apex': 'installer.apex.ApexInstaller'
 }
 
 
diff --git a/tests/installer/apex.py b/tests/installer/apex.py
new file mode 100644
index 00000000..24cd5a75
--- /dev/null
+++ b/tests/installer/apex.py
@@ -0,0 +1,99 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import getpass
+import grp
+import os
+import pwd
+import stat
+import sys
+
+from installer.common.congress import set_doctor_driver_conf
+from installer.common.congress import restore_doctor_driver_conf
+from installer.base import BaseInstaller
+from utils import SSHClient
+
+
+class ApexInstaller(BaseInstaller):
+    node_user_name = 'heat-admin'
+    cm_set_script = 'set_ceilometer.py'
+    cm_restore_script = 'restore_ceilometer.py'
+
+    def __init__(self, conf, log):
+        super(ApexInstaller, self).__init__(conf, log)
+        self.client = SSHClient(self.conf.installer.ip,
+                                self.conf.installer.username,
+                                look_for_keys=True)
+        self.key_file = None
+        self.controllers = list()
+        self.controller_clients = list()
+
+    def setup(self):
+        self.log.info('Setup Apex installer start......')
+
+        self.key_file = self.get_ssh_key_from_installer()
+        self.get_controller_ips()
+        self.set_apply_patches()
+
+    def cleanup(self):
+        self.restore_apply_patches()
+
+    def get_ssh_key_from_installer(self):
+        self.log.info('Get SSH keys from Apex installer......')
+
+        self.client.scp('/home/stack/.ssh/id_rsa', './instack_key', method='get')
+        user = getpass.getuser()
+        uid = pwd.getpwnam(user).pw_uid
+        gid = grp.getgrnam(user).gr_gid
+        os.chown('./instack_key', uid, gid)
+        os.chmod('./instack_key', stat.S_IREAD)
+        current_dir = sys.path[0]
+        return '{0}/{1}'.format(current_dir, 'instack_key')
+
+    def get_controller_ips(self):
+        self.log.info('Get controller ips from Apex installer......')
+
+        command = "source stackrc; " \
+                  "nova list | grep ' overcloud-controller-[0-9] ' " \
+                  "| sed -e 's/^.*ctlplane=//' |awk '{print $1}'"
+        ret, controllers = self.client.ssh(command)
+        if ret:
+            raise Exception('Exec command to get controller ips in Apex installer failed'
+                            'ret=%s, output=%s' % (ret, controllers))
+        self.controllers = controllers
+
+    def set_apply_patches(self):
+        self.log.info('Set apply patches start......')
+
+        for node_ip in self.controllers:
+            client = SSHClient(node_ip, self.node_user_name, key_filename=self.key_file)
+            self.controller_clients.append(client)
+            self._ceilometer_apply_patches(client, self.cm_set_script)
+            cmd = 'sudo systemctl restart openstack-congress-server.service'
+            set_doctor_driver_conf(client, cmd)
+
+    def restore_apply_patches(self):
+        self.log.info('restore apply patches start......')
+
+        for client in self.controller_clients:
+            self._ceilometer_apply_patches(client, self.cm_restore_script)
+            cmd = 'sudo systemctl restart openstack-congress-server.service'
+            restore_doctor_driver_conf(client, cmd)
+
+    def _ceilometer_apply_patches(self, ssh_client, script_name):
+        installer_dir = os.path.dirname(os.path.realpath(__file__))
+        script_abs_path = '{0}/{1}/{2}'.format(installer_dir, 'common', script_name)
+
+        ssh_client.scp(script_abs_path, script_name)
+        cmd = 'sudo python %s' % script_name
+        ret, output = ssh_client.ssh(cmd)
+        if ret:
+            raise Exception('Do the ceilometer command in controller node failed....'
+                            'ret=%s, cmd=%s, output=%s' % (ret, cmd, output))
+        ssh_client.ssh('sudo systemctl restart openstack-ceilometer-notification.service')
+
diff --git a/tests/installer/base.py b/tests/installer/base.py
index 83467f55..f3837f15 100644
--- a/tests/installer/base.py
+++ b/tests/installer/base.py
@@ -16,8 +16,8 @@ class BaseInstaller(object):
         self.log = log
 
     @abc.abstractproperty
-    def computer_user_name(self):
-        """user name for login to computer node"""
+    def node_user_name(self):
+        """user name for login to cloud node"""
 
     @abc.abstractmethod
     def get_ssh_key_from_installer(self):
diff --git a/tests/installer/common/congress.py b/tests/installer/common/congress.py
new file mode 100644
index 00000000..db882de2
--- /dev/null
+++ b/tests/installer/common/congress.py
@@ -0,0 +1,47 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+def set_doctor_driver_conf(ssh_client, restart_cmd):
+    cg_set_cmd = '''#!/bin/bash
+co_conf=/etc/congress/congress.conf
+co_conf_bak=/etc/congress/congress.conf.bak
+co_entry="congress.datasources.doctor_driver.DoctorDriver"
+if sudo grep -e "^drivers.*$co_entry" $co_conf; then
+    echo "NOTE: congress is configured as we needed"
+else
+    echo "modify the congress config"
+    sudo cp $co_conf $co_conf_bak
+    sudo sed -i -e "/^drivers/s/$/,$co_entry/"  $co_conf
+    %s
+fi
+    ''' % (restart_cmd)
+
+    ret, output = ssh_client.ssh(cg_set_cmd)
+    if ret:
+        raise Exception('Do the congress command in controller node failed....'
+                        'ret=%s, cmd=%s, output=%s' % (ret, cg_set_cmd, output))
+
+
+def restore_doctor_driver_conf(ssh_client, restart_cmd):
+    cg_restore_cmd = '''#!/bin/bash
+co_conf=/etc/congress/congress.conf
+co_conf_bak=/etc/congress/congress.conf.bak
+if [ -e $co_conf_bak ]; then
+    echo "restore the congress config"
+    sudo cp $co_conf_bak $co_conf
+    sudo rm $co_conf_bak
+    %s
+else
+    echo "Do not need to restore the congress config"
+fi
+    ''' % (restart_cmd)
+
+    ret, output = ssh_client.ssh(cg_restore_cmd)
+    if ret:
+        raise Exception('Do the congress command in controller node failed....'
+                        'ret=%s, cmd=%s, output=%s' % (ret, cg_restore_cmd, output))
diff --git a/tests/installer/common/restore_ceilometer.py b/tests/installer/common/restore_ceilometer.py
new file mode 100644
index 00000000..d25b9ede
--- /dev/null
+++ b/tests/installer/common/restore_ceilometer.py
@@ -0,0 +1,27 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import os
+import shutil
+
+ep_file = '/etc/ceilometer/event_pipeline.yaml'
+ep_file_bak = '/etc/ceilometer/event_pipeline.yaml.bak'
+
+
+def restore_ep_config():
+
+    if not os.path.isfile(ep_file_bak):
+        print('Bak_file:%s does not exist.' % ep_file_bak)
+    else:
+        print('restore')
+        shutil.copyfile(ep_file_bak, ep_file)
+        os.remove(ep_file_bak)
+    return
+
+
+restore_ep_config()
diff --git a/tests/installer/common/set_ceilometer.py b/tests/installer/common/set_ceilometer.py
new file mode 100644
index 00000000..f5946cb2
--- /dev/null
+++ b/tests/installer/common/set_ceilometer.py
@@ -0,0 +1,44 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import os
+import shutil
+import yaml
+
+ep_file = '/etc/ceilometer/event_pipeline.yaml'
+ep_file_bak = '/etc/ceilometer/event_pipeline.yaml.bak'
+event_notifier_topic = 'notifier://?topic=alarm.all'
+
+
+def set_notifier_topic():
+    config_modified = False
+
+    if not os.path.isfile(ep_file):
+        raise Exception("File doesn't exist: %s." % ep_file)
+
+    with open(ep_file, 'r') as file:
+        config = yaml.safe_load(file)
+
+    sinks = config['sinks']
+    for sink in sinks:
+        if sink['name'] == 'event_sink':
+            publishers = sink['publishers']
+            if event_notifier_topic not in publishers:
+                print('Add event notifier in ceilometer')
+                publishers.append(event_notifier_topic)
+                config_modified = True
+            else:
+                print('NOTE: event notifier is configured in ceilometer as we needed')
+
+    if config_modified:
+        shutil.copyfile(ep_file, ep_file_bak)
+        with open(ep_file, 'w+') as file:
+            file.write(yaml.safe_dump(config))
+
+
+set_notifier_topic()
diff --git a/tests/installer/local.py b/tests/installer/local.py
index e156ac1a..abe0ba25 100644
--- a/tests/installer/local.py
+++ b/tests/installer/local.py
@@ -15,7 +15,7 @@ from utils import write_json_file
 
 
 class LocalInstaller(BaseInstaller):
-    computer_user_name = 'root'
+    node_user_name = 'root'
 
     nova_policy_file = '/etc/nova/policy.json'
     nova_policy_file_backup = '%s%s' % (nova_policy_file, '.bak')
diff --git a/tests/utils.py b/tests/utils.py
index c5d6c1c3..f57cd266 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -8,6 +8,7 @@
 ##############################################################################
 import json
 import os
+import paramiko
 
 
 def load_json_file(full_path):
@@ -31,3 +32,47 @@ def write_json_file(full_path, data):
     with open(full_path, 'w+') as file:
         file.write(json.dumps(data))
 
+
+class SSHClient(object):
+    def __init__(self, ip, username, password=None, pkey=None,
+                 key_filename=None, log=None, look_for_keys=False,
+                 allow_agent=False):
+        self.client = paramiko.SSHClient()
+        self.client.load_system_host_keys()
+        self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        self.client.connect(ip, username=username, password=password,
+                            pkey=pkey, key_filename=key_filename,
+                            look_for_keys=look_for_keys,
+                            allow_agent=allow_agent)
+        self.log = log
+
+    def __del__(self):
+        self.client.close()
+
+    def ssh(self, command):
+        if self.log:
+            self.log.debug("Executing: %s" % command)
+        stdin, stdout, stderr = self.client.exec_command(command)
+        ret = stdout.channel.recv_exit_status()
+        output = list()
+        for line in stdout.read().splitlines():
+            output.append(line)
+        if ret:
+            if self.log:
+                self.log.debug("*** FAILED to run command %s (%s)" % (command, ret))
+            raise Exception(
+                "Unable to run \ncommand: %s\nret: %s"
+                % (command, ret))
+        if self.log:
+            self.log.debug("*** SUCCESSFULLY run command %s" % command)
+        return ret, output
+
+    def scp(self, source, dest, method='put'):
+        if self.log:
+            self.log.info("Copy %s -> %s" % (source, dest))
+        ftp = self.client.open_sftp()
+        if method == 'put':
+            ftp.put(source, dest)
+        elif method == 'get':
+            ftp.get(source, dest)
+        ftp.close()