openstack私有云布署实践【7.1 keystone + memcache (科兴环境)】

sxyzy

其实登录数据库集群中任意1台都可以创建库，它们会实时自动同步数据库和对应的数据库权限。

首先登录kxcontroller1创建kx_keystone数据库，并赋于远程和本地访问的权限。

mysql -u root -p
CREATE DATABASE keystone;
GRANT ALL PRIVILEGES ON kx_keystone.* TO 'kx_keystone'@'localhost'   IDENTIFIED BY 'venic8888';
GRANT ALL PRIVILEGES ON kx_keystone.* TO 'kx_keystone'@'%'  IDENTIFIED BY 'venic8888';
flush PRIVILEGES;

2台controller服务器（kxcontrolelr1 kxcontroller2） 安装其它无状态服务的组件，


yum install openstack-keystone httpd mod_wsgi  memcached python-memcached -y
先开启memcache
systemctl enable memcached.service
systemctl start memcached.service

kxcontroller1上
vi  /etc/keystone/keystone.conf

[DEFAULT]
admin_token = venicchina
verbose = True
[database]
connection = mysql://keystone:venic8888@kxcontroller/kx_keystone
[memcache]
servers = kxcontroller1:11211
[token]
provider = uuid
driver = memcache
expiration = 86400
caching = true
cache_time = 86400
[revoke]
driver = sql
expiration_buffer = 86400
caching = true
cache_time = 86400
[catalog]
driver = keystone.catalog.backends.sql.Catalog
[identity]
driver = keystone.identity.backends.sql.Identity

kxcontroller2上
vi  /etc/keystone/keystone.conf
[DEFAULT]
admin_token = venicchina
verbose = True
[database]
connection = mysql://keystone:venic8888@kxcontroller/kx_keystone
[memcache]
servers = kxcontroller2:11211
[token]
provider = uuid
driver = memcache
expiration = 86400
caching = true
cache_time = 86400
[revoke]
driver = sql
expiration_buffer = 86400
caching = true
cache_time = 86400
[catalog]
driver = keystone.catalog.backends.sql.Catalog
[identity]
driver = keystone.identity.backends.sql.Identity

以上的每个配置中两组黄色底86400的是给token定义失效时间，默认30分钟或1小时，因为有时迁移一些很大的实例时，迁移大200G的时候，时间会超过，到时会有token报错，到时实例就废掉了。加大时长是必须，这里我定义1天超时

在其中一台kxcontroller1同步数据库，生成表单
su -s /bin/sh -c "keystone-manage db_sync" keystone

---------------------------------------
修改httpd配置

kxcontroller1上
vi /etc/httpd/conf/httpd.conf

ServerName kxcontroller1
改
Listen 80 这一条为以下行：
Listen 10.120.42.1:80#与VIP监听的IP不同

kxcontroller2上
vi /etc/httpd/conf/httpd.conf

ServerName kxcontroller2
改
Listen 80 这一条为以下行：
Listen 10.120.42.2:80#与VIP监听的IP不同



------------------------------------------
kxcontroller1上
vi /etc/httpd/conf.d/wsgi-keystone.conf

Listen 10.120.42.1:5000
Listen 10.120.42.1:35357

<VirtualHost *:5000>
    WSGIDaemonProcess keystone-public processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-public
    WSGIScriptAlias / /usr/bin/keystone-wsgi-public
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    <IfVersion >= 2.4>
      ErrorLogFormat "%{cu}t %M"
    </IfVersion>
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        <IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order allow,deny
            Allow from all
        </IfVersion>
    </Directory>
</VirtualHost>

<VirtualHost *:35357>
    WSGIDaemonProcess keystone-admin processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-admin
    WSGIScriptAlias / /usr/bin/keystone-wsgi-admin
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    <IfVersion >= 2.4>
      ErrorLogFormat "%{cu}t %M"
    </IfVersion>
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        <IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order allow,deny
            Allow from all
        </IfVersion>
    </Directory>
</VirtualHost>

kxcontroller2上
vi /etc/httpd/conf.d/wsgi-keystone.conf

Listen 10.120.42.2:5000
Listen 10.120.42.2:35357

<VirtualHost *:5000>
    WSGIDaemonProcess keystone-public processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-public
    WSGIScriptAlias / /usr/bin/keystone-wsgi-public
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    <IfVersion >= 2.4>
      ErrorLogFormat "%{cu}t %M"
    </IfVersion>
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        <IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order allow,deny
            Allow from all
        </IfVersion>
    </Directory>
</VirtualHost>

<VirtualHost *:35357>
    WSGIDaemonProcess keystone-admin processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-admin
    WSGIScriptAlias / /usr/bin/keystone-wsgi-admin
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    <IfVersion >= 2.4>
      ErrorLogFormat "%{cu}t %M"
    </IfVersion>
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        <IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order allow,deny
            Allow from all
        </IfVersion>
    </Directory>
</VirtualHost>


2台kxcontroller服务启动，加入开机自启

# systemctl enable httpd.service
# systemctl start httpd.service

验证：在haproxy的页面http://10.120.42.10:8888/stats上查看80 5000 35357端口状态转发是否成功