OpenStack安装-MySQL,Rabbitmq,memcache.

基于前一篇的基本环境，现在我们开始安装MySQL.

在node1上面安装MySQL:

[root@linux-node1 ~]# yum install mariadb mariadb-server python2-PyMySQL -y

设置为开机自动启动：

[root@linux-node1 ~]# systemctl enable mariadb
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.

创建并编辑openstack.cnf文件：

[root@linux-node1 ~]# cat /etc/my.cnf.d/openstack.cnf [mysqld]
bind-address = 192.168.56.11
default-storage-engine = innodb
innodb_file_per_table = on
max_connections = 4096
collation-server = utf8_general_ci
character-set-server = utf8
[root@linux-node1 ~]#

启动数据库，因为初始没有密码，我们需要为数据库设置一个密码，现在设置密码为wandl123

[root@linux-node1 ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 4
Server version: 10.1.20-MariaDB MariaDB Server
Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

MariaDB [(none)]> use mysql;
Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A
 Database changed

MariaDB [mysql]> update user set password=password("wandl123")where user="root"; Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0

MariaDB [mysql]> flush privileges; Query OK, 0 rows affected (0.00 sec)

MariaDB [mysql]> exit Bye

为每一个openstack服务（keystone,nova,nova_api,glance,neutron）创建一个数据库并配置密码

MariaDB [(none)]> create database keystone; Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> create database nova; Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> create database nova_api; Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> create database glance; Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> create database neutron; Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> create database cinder; Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> CREATE DATABASE nova_cell0

为新的数据库授权

MariaDB [(none)]> grant all on nova.* to 'nova'@'localhost' identified by 'nova' -> ;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on nova.* to 'nova'@'%' identified by 'nova'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on nova_api.* to 'nova'@'%' identified by 'nova'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on nova_api.* to 'nova'@'localhost' identified by 'nova'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on keystone.* to 'keystone'@'localhost' identified by 'keystone'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on keystone.* to 'keystone'@'%' identified by 'keystone'; Query OK, 0 rows affected (0.01 sec)
MariaDB [(none)]> grant all on glance.* to 'glance'@'localhost' identified by 'glance';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on glance.* to 'glance'@'%' identified by 'glance'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on neutron.* to 'neutron'@'localhost' identified by 'neutron'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on neutron.* to 'neutron'@'%' identified by 'neutron'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on cinder.* to 'cinder'@'localhost' identified by 'cinder'; Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all o