centos 7部署openstack 基础环境

[root@openstack-3 ~]# yum list centos-release-openstack*
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Available Packages
centos-release-openstack-queens.noarch                                                                              1-2.el7.centos                                                                               extras
centos-release-openstack-rocky.noarch                                                                               1-1.el7.centos                                                                               extras
centos-release-openstack-stein.noarch                                                                               1-1.el7.centos                                                                               extras
centos-release-openstack-train.noarch                                                                               1-1.el7.centos                                                                               extras

 官网文档：https://docs.openstack.org/install-guide/environment-security.html

  

  安装yum源

[root@openstack-1 ~]# yum -y install centos-release-openstack-train.noarch

yum install https://rdoproject.org/repos/rdo-release.rpm

yum install python-openstackclient

yum install openstack-selinux

安装数据库

yum install mariadb mariadb-server python2-PyMySQL  # py模块必须安装在控制节点，数据库可以不用

  修改配置文件 /etc/my.cnf.d/openstack.cnf

[mysqld]
bind-address = 0.0.0.0

default-storage-engine = innodb
innodb_file_per_table = on
max_connections = 4096
collation-server = utf8_general_ci
character-set-server = utf8

[root@openstack-1 ~]# systemctl  start mariadb
[root@openstack-1 ~]# systemctl  enable  mariadb 

小插曲，启动mariadb报错

[root@controller yum.repos.d]# systemctl status  mariadb.service
● mariadb.service - MariaDB 10.3 database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2022-07-26 17:39:00 CST; 1s ago
     Docs: man:mysqld(8)
           https://mariadb.com/kb/en/library/systemd/
  Process: 3649 ExecStartPost=/usr/libexec/mysql-check-upgrade (code=exited, status=0/SUCCESS)
  Process: 3578 ExecStartPre=/usr/libexec/mysql-prepare-db-dir %n (code=exited, status=0/SUCCESS)
  Process: 3553 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
 Main PID: 3617 (mysqld)
   Status: "Taking your SQL requests now..."
   CGroup: /system.slice/mariadb.service
           └─3617 /usr/libexec/mysqld --basedir=/usr

Jul 26 17:39:00 controller systemd[1]: Starting MariaDB 10.3 database server...
Jul 26 17:39:00 controller mysql-prepare-db-dir[3578]: Database MariaDB is probably initialized in /var/lib/mysql already, nothing is done.
Jul 26 17:39:00 controller mysql-prepare-db-dir[3578]: If this is not the case, make sure the /var/lib/mysql is empty before running mysql-prepare-db-dir.
Jul 26 17:39:00 controller mysqld[3617]: 2022-07-26 17:39:00 0 [Note] /usr/libexec/mysqld (mysqld 10.3.20-MariaDB) starting as process 3617 ...
Jul 26 17:39:00 controller mysqld[3617]: 2022-07-26 17:39:00 0 [Warning] Could not increase number of max_open_files to more than 1024 (request: 8131)
Jul 26 17:39:00 controller mysqld[3617]: 2022-07-26 17:39:00 0 [Warning] Changed limits: max_open_files: 1024  max_connections: 594 (was 4096)  table_cache: 200 (was 2000)
Jul 26 17:39:00 controller systemd[1]: Started MariaDB 10.3 database server.

 

百度了一番

ulimit -n 65535  # 临时配置

 

修改配置文件

 vim /etc/security/limits.conf

*               soft    core           unlimited
*               hard    core           unlimited
*               soft    nofile         65535
*               hard    nofile         65535
*               soft    nproc          65535
*               hard    nproc          65535
*               hard    memlock        32000
*               soft    memlock        32000

 

修改启动文件

vim /etc/systemd/system/mysql.service

[Service]
LimitNOFILE=65535

 

重启

[root@controller yum.repos.d]# systemctl status  mariadb.service
● mariadb.service - MariaDB 10.3 database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2022-07-26 17:41:14 CST; 4min 45s ago
     Docs: man:mysqld(8)
           https://mariadb.com/kb/en/library/systemd/
  Process: 3948 ExecStartPost=/usr/libexec/mysql-check-upgrade (code=exited, status=0/SUCCESS)
  Process: 3878 ExecStartPre=/usr/libexec/mysql-prepare-db-dir %n (code=exited, status=0/SUCCESS)
  Process: 3852 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
 Main PID: 3916 (mysqld)
   Status: "Taking your SQL requests now..."
   CGroup: /system.slice/mariadb.service
           └─3916 /usr/libexec/mysqld --basedir=/usr

Jul 26 17:41:14 controller systemd[1]: Starting MariaDB 10.3 database server...
Jul 26 17:41:14 controller mysql-prepare-db-dir[3878]: Database MariaDB is probably initialized in /var/lib/mysql already, nothing is done.
Jul 26 17:41:14 controller mysql-prepare-db-dir[3878]: If this is not the case, make sure the /var/lib/mysql is empty before running mysql-prepare-db-dir.
Jul 26 17:41:14 controller mysqld[3916]: 2022-07-26 17:41:14 0 [Note] /usr/libexec/mysqld (mysqld 10.3.20-MariaDB) starting as process 3916 ...
Jul 26 17:41:14 controller systemd[1]: Started MariaDB 10.3 database server.

 

安装队列

yum install rabbitmq-server

[root@openstack-1 ~]# rabbitmqctl add_user openstack admin123456
Creating user "openstack"

[root@openstack-1 ~]# rabbitmqctl set_permissions openstack ".*" ".*" ".*"
Setting permissions for user "openstack" in vhost "/"

开启web管理

[root@openstack-1 ~]# rabbitmq-plugins enable rabbitmq_management

 设置管理员

[root@openstack-1 ~]# rabbitmqctl set_user_tags openstack administrator

访问

 安装Memcached

yum install memcached python-memcached  # py安装控制节点

 编辑/etc/sysconfig/memcached

PORT="11211"
USER="memcached"
MAXCONN="1024"
CACHESIZE="512"
OPTIONS="-l 0.0.0.0,::1"

systemctl enable memcached.service
systemctl start memcached.service