Openstack組建部署 — Environment of Controller Node

目錄

前文清單

Controller Node

Install and configure components

Setup DNS Server

Setup NTP Server

Install SQL Database

Setup Message queue

Setup Memcached

Openstack元件部署 — Overview和前期環境準備

控制節點是整個Openstack控制樞紐，可以将Database、Message queue、DNS、NTP、Keystone等服務內建到一起，當然Openstack實作了松耦合的架構思想，是以所有的元件都可以在任意Node中安裝組合，視乎實際情況而定。

step1.

**Step2.**Edit the config file.

**Step3.**Forward Domain

vim /etc/named.rfc1912.zones

Create zone config file:

vim /var/named/jmilk.com.zone

vim /etc/resolv.conf

注意：當需要聯網安裝軟體包時，還是需要将DNSSERVER指向外網DNSSERVER

Restart the named service：

Install the packages:

Edit the /etc/chrony.conf:

vim /etc/chrony.conf

Start the NTP service and configure it to start when the system boots:

CHECK:

Create and edit the /etc/my.cnf.d/openstack.cnf file

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

Start the database service and configure it to start when the system boots:

初始化MySQL：

OpenStack使用message queue實作協調操作和服務之間的狀态資訊。Message queue service一般在Controller Node上運作。

OpenStack常用的消息代理軟體：

RabbitMQ(更加常用)

Qpid

ZeroMQ

Install the package:

Start the message queue service and configure it to start when the system boots:

Add the openstack user

Permit configuration, write, and read access for the openstack user:

The Identity service authentication mechanism for services uses Memcached to cache tokens. Memcached緩存技術用于對Keystone元件的認證資訊token進行緩存。一般安裝在Controller Node上，在生産系統中，建議使用認證、防火牆、加密的手段來保證token緩存的安全。

Start the Memcached service and configure it to start when the system boots: