Centos7安装OpenStack-Kilo

老板最近直接上vmware的 openstack的研究暂停一段时间

1. Centos7系统安装

参考

2. OpenStack-Kio安装

参考官方文档

2.1 配置Yum

1. 启用 EPEL 源

sudo yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm

1. (centos不需要)RHEL需要通过子脚本管理器启用 extras repository

subscription-manager repos --enable=rhel-7-server-extras-rpms

1. 安装rdo-release-kilo包来开启RDO源:

yum install http://rdo.fedorapeople.org/openstack-kilo/rdo-release-kilo.rpm

1. 更新系统

yum upgrade

1. 安装openstack-selinux自动管理selinux(我直接把selinux关掉了)

yum install openstack-selinux

2.2 安装Network Time Protocol (NTP)

Openstack需要安装NTP来同步节点之间的各种服务, 通过在控制节点简历NTP服务可以使得同步更加精确.

2.2.1 控制节点(Node1)

2.2.1.1 安装ntp服务

yum install ntp

2.2.1.2 编辑配置文件 /etc/ntp.conf

#vim  /etc/ntp.conf

#server NTP_SERVER iburst //使用Centos默认服务器即可
restrict -4 default kod notrap nomodify
restrict -6 default kod notrap nomodify

2.2.1.3 重启服务

systemctl enable ntpd.service
systemctl start ntpd.service

2.2.1 其他节点(Node2,3,4)

2.2.1.1 安装ntp服务

yum install ntp

2.2.1.2 编辑配置文件 /etc/ntp.conf

#vim  /etc/ntp.conf
server controller iburst

2.2.1.3 重启服务

systemctl enable ntpd.service
systemctl start ntpd.service

2.3 配置Mysql数据库

2.3.1 安装

yum install mariadb mariadb-server MySQL-python

2.3.2 创建配置文件

# vim /etc/my.cnf.d/mariadb_openstack.cnf 

[mysqld]
bind-address = node1

default-storage-engine = innodb
innodb_file_per_table
collation-server = utf8_general_ci
init-connect = 'SET NAMES utf8'
character-set-server = utf8

2.3.3 重启服务

systemctl enable mariadb.service
systemctl start mariadb.service

2.3.4 数据库初始化

配置root密码,和一系列初始化操作,默认全部选Y

mysql_secure_installation

2.4 安装消息队列

Message queue用于OpenStack各个组件的通信和协作,同时OpenStack支持RabbitMQ, Qpid, and ZeroMQ等消息队列组件,我们使用RabbitMQ.

2.4.1 安装

yum install rabbitmq-server

2.4.2 启动服务

systemctl enable rabbitmq-server.service
systemctl start rabbitmq-server.service

2.4.3 添加openstack用户

我设置密码为ada

rabbitmqctl add_user openstack ada

2.4.4 配置openstack用户权限

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

2.5 认证服务keystone

基本概念:
keystone为不同的用户分配不同权限,同时为各种服务提供API接口.
1. 用户:
用户就是不同的人,公司,组织的标示.不同用户可以通过令牌来登陆,同时具有不同的访问权限.
2. 认证(Credentials)
用于验证用户权限,可以用<用户名,密码/API/服务令牌>等
3. 租户(Tenant)
租户一般为一组用户,包括用户和他们可以访问的权限,比如公司是一个租户,公司里每个员工就是用户.通过这种方式OpenStack可以为不同的企业提供服务.
4. 服务(Service)
用于提供OpenStack服务,比如navo等
5. 接口(Endpoint)
我们可以通过接口来访问不同的服务. 接口通常是一个url地址

2.5.1 添加数据库信息

1. 连入mysql数据库

mysql -u root -p

1. 创建keystone数据库

CREATE DATABASE keystone;

1. 配置keystone的访问权限

   以下为官网方案(实验失败),我发现mysql的加密方式有问题,用keystone死活登不进去.

我们通过密码ada来访问数据库,可以替换为其他密码

GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY 'ada';

GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY 'ada';

我的方案:

使用phpMyAdmin建立用户keystone密码ada

//使用以下命令确认用户keystone能用密码登陆
# mysql -u keystone -p
//登陆数据库后执行一下命令来授权
GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%';

1. 退出数据库

exit

1. 生成一个随机令牌

#openssl rand -hex 10
45cf127b9518d3ee2633

把生成的随机数记录下来,后边要用

2.5.2 安装配置keystone认证服务

1. 安装软件包

yum install openstack-keystone httpd mod_wsgi python-openstackclient memcached python-memcached

1. 启用memcached服务

systemctl enable memcached.service
systemctl start memcached.service

1. 编辑配置文件/etc/keystone/keystone.conf

//官方方案为/etc/keystone/keystone.conf结果发现该配置文件不生效
//替换为 /usr/share/keystone/keystone-dist.conf 
#vim  /usr/share/keystone/keystone-dist.conf 

[DEFAULT]
admin_token = 45cf127b9518d3ee2633//就是上次那个随机数
verbose = True
[database]
connection = mysql://keystone:ada@node1/keystone
[memcache]
servers = node1:11211
[token]
provider = keystone.token.providers.uuid.Provider
driver = keystone.token.persistence.backends.memcache.Token
[revoke]
driver = keystone.contrib.revoke.backends.sql.Revoke

1. 创建认证并对文件授权

keystone-manage pki_setup --keystone-user keystone --keystone-group keystone
chown -R keystone:keystone /var/log/keystone
chown -R keystone:keystone /etc/keystone/ssl
chmod -R o-rwx /etc/keystone/ssl

1. 同步数据库
   su -s /bin/sh -c "keystone-manage db_sync" keystone
2. 配置Apache http服务
   所有linux命令以#开头,vim命令下面的内容,为需要添加的配置文件.

#vim /etc/httpd/conf/httpd.conf 
ServerName node1

#vim /etc/httpd/conf.d/wsgi-keystone.conf
Listen 5000
Listen 35357

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

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

# mkdir -p /var/www/cgi-bin/keystone
# curl http://git.openstack.org/cgit/openstack/keystone/plain/httpd/keystone.py?h=stable/kilo | tee /var/www/cgi-bin/keystone/main /var/www/cgi-bin/keystone/admin

# chown -R keystone:keystone /var/www/cgi-bin/keystone
# chmod 755 /var/www/cgi-bin/keystone/*
# restorecon /var/www/cgi-bin
# usermod -a -G keystone apache
# systemctl enable httpd.service
# systemctl start httpd.service