正式进入搭建OpenStack

部署mariadb数据库

控制节点：

yum install mariadb mariadb-server python2-PyMySQL -y

编辑：

/etc/my.cnf.d/openstack.cnf

[mysqld]

bind-address = 控制节点管理网络ip

default-storage-engine = innodb

innodb_file_per_table

max_connections = 4096

collation-server = utf8_general_ci

character-set-server = utf8

启服务：

systemctl enable mariadb.service

systemctl start mariadb.service

#初始化mysql

mysql_secure_installation

部署消息队列rabbitmq(验证方式:http://IP:15672/ 用户:guest 密码:guest)

控制节点：

yum install rabbitmq-server -y

启动服务：

systemctl enable rabbitmq-server.service

systemctl start rabbitmq-server.service

新建rabbitmq用户密码：

rabbitmqctl add_user openstack 123456

为新建的用户openstack设定权限：

rabbitmqctl set_permissions openstack ".*" ".*" ".*"

部署memcached缓存（为keystone服务缓存tokens）

控制节点：

yum install memcached python-memcached -y

启动服务：

systemctl enable memcached.service

systemctl start memcached.service

认证服务keystone部署

一：安装和配置服务

1.建库建用户

mysql -u root -p

CREATE DATABASE keystone;

GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost'

IDENTIFIED BY '123456';

GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%'

IDENTIFIED BY '123456';

GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'控制节点IP或主机名'

IDENTIFIED BY '123456';

flush privileges;

2、安装keystone和mod_wsgi

yum install openstack-keystone httpd mod_wsgi -y

3、编辑/etc/keystone/keystone.conf

[DEFAULT]

admin_token = 123456 #建议用命令制作token:openssl rand -hex 10

[database]

connection = mysql+pymysql://keystone:123456@controller/keystone

[token]

provider = fernet

#Token Provider：UUID, PKI, PKIZ, or Fernet #http://blog.csdn.net/miss_yang_cloud/article/details/49633719

4.同步修改到数据库

su -s /bin/sh -c "keystone-manage db_sync" keystone

5.初始化fernet keys

keystone-manage fernet_setup --keystone-user keystone --keystone-group keystone

6.配置apache服务

编辑：/etc/httpd/conf/httpd.conf

ServerName controller

编辑：/etc/httpd/conf.d/wsgi-keystone.conf

新增配置

Listen 5000
Listen 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
    ErrorLogFormat "%{cu}t %M"
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        Require all granted
    </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
    ErrorLogFormat "%{cu}t %M"
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        Require all granted
    </Directory>
</VirtualHost>

7.启动服务:

systemctl enable httpd.service

systemctl restart httpd.service #因为之前自定义基于http协议的yum源时已经启动过了httpd，所以此处需要restart

二：创建服务实体和访问端点

1.实现配置管理员环境变量，用于获取后面创建的权限

export OS_TOKEN=123456

export OS_URL=http://controller:35357/v3

export OS_IDENTITY_API_VERSION=3

2.基于上一步给的权限，创建认证服务实体（目录服务）

openstack service create

--name keystone --description "OpenStack Identity" identity

3.基于上一步建立的服务实体，创建访问该实体的三个api端点

openstack endpoint create --region RegionOne

identity public http://controller:5000/v3

openstack endpoint create --region RegionOne

identity internal http://controller:5000/v3

openstack endpoint create --region RegionOne

identity admin http://controller:35357/v3

三：创建域，租户，用户，角色，把四个元素关联到一起

建立一个公共的域名：

openstack domain create --description "Default Domain" default

管理员：admin

openstack project create --domain default

--description "Admin Project" admin

openstack user create --domain default

--password-prompt admin

openstack role create admin

openstack role add --project admin --user admin admin

普通用户：demo

openstack project create --domain default

--description "Demo Project" demo

openstack user create --domain default

--password-prompt demo

openstack role create user

openstack role add --project demo --user demo user

为后续的服务创建统一租户service

解释：后面每搭建一个新的服务都需要在keystone中执行四种操作：1.建租户 2.建用户 3.建角色 4.做关联

后面所有的服务公用一个租户service，都是管理员角色admin，所以实际上后续的服务安装关于keysotne

的操作只剩2，4

openstack project create --domain default

--description "Service Project" service

四：验证操作：

编辑：/etc/keystone/keystone-paste.ini

在[pipeline:public_api], [pipeline:admin_api], and [pipeline:api_v3] 三个地方