$ yum -y install openstack-dashboard

$ vim /etc/openstack-dashboard/local_settings

OPENSTACK_HOST = "192.168.1.2"   #配置仪表盘以使用 OpenStack 服务

ALLOWED_HOSTS = ['*', ]         #允许所有主机访问仪表板，可写IP，域名。

#配置 memcached 会话存储服务
SESSION_ENGINE = 'django.contrib.sessions.backends.cache'

CACHES = {
    'default': {
         'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
         'LOCATION': 'controller:11211',
    }
}

OPENSTACK_KEYSTONE_URL = "http://%s:5000/v3" % OPENSTACK_HOST   #启用第3版认证API

OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True                   #启用对域的支持

#配置API版本
OPENSTACK_API_VERSIONS = {
    "identity": 3,
    "image": 2,
    "volume": 2,
}

OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "default"                   #通过仪表盘创建用户时的默认域配置为 default

OPENSTACK_KEYSTONE_DEFAULT_ROLE = "user"                        #通过仪表盘创建的用户默认角色配置为 user

如果您选择网络参数1，禁用支持3层网络服务:
OPENSTACK_NEUTRON_NETWORK = {
    'enable_router': False,
    'enable_quotas': False,
    'enable_distributed_router': False,
    'enable_ha_router': False,
    'enable_lb': False,
    'enable_firewall': False,
    'enable_vpn': False,
    'enable_fip_topology_check': False,
}

TIME_ZONE = "Asia/Shanghai"         #可以选择性地配置时区

$ tail -500f /var/log/httpd/error.log

RuntimeError: Unable to create a new session key. It is likely that the cache is unavailable

$ vim /etc/openstack-dashboard/local_settings

SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
修改为
SESSION_ENGINE = 'django.contrib.sessions.backends.file'

$ systemctl restart httpd.service memcached.service