Ironic Inspector安装、使用及流程分析

Hardware introspection for OpenStack Bare Metal

This is an auxiliary service for discovering hardware properties for a node managed by Ironic. Hardware introspection or hardware properties discovery is a process of getting hardware parameters required for scheduling from a bare metal node, given it’s power management credentials (e.g. IPMI address, user name and password).

安装与配置ironic-inspector

ironic-inspector的流程说明

ironic-inspector使用ironic-agent镜像，以及自身提供的一个dnsmasq服务预先布置BM，主要的工作流程为：
1. 通过ironic api进入inspect阶段（也可以使用ironic-inspector的api）
2. ironic启动BM（如BM已启动，则关闭再启动），BM进入pxe启动阶段；通过ironic-inspector-dnsmasq分配ip地址，成功后使用tftp将ironic-agent镜像传输至BM；BM从ironic-agent镜像启动
3. ironic-python-agent开始工作，其与ironic-inspector取得通信，根据inspector中的rule，对BM进行inspect动作，主要目的为获取BM的硬件信息；收集完毕后ipa将数据传输给ironic-inspector；关闭BM
4. ironic-inspector根据配置中store_data选择的driver来存储收集到的数据；inspect阶段完成

安装软件包

添加rdo的ocata源：

yum install https://repos.fedorapeople.org/repos/openstack/openstack-ocata/rdo-release-ocata-2.noarch.rpm -y

下载ironic-inspector及其client的rpm包：

yum install openstack-ironic-inspector python-ironic-inspector-client -y

（可用安装源码代替，但是需要手动配置，源码从github上openstack对应模块的stable/ocata branch下载）
- https://github.com/openstack/ironic-inspector/tree/stable/ocata
- https://github.com/openstack/python-ironic-inspector-client/tree/stable/ocata

创建ironic-inspector的认证信息及endpoint

openstack user create --domain default --project services --project-domain default --password ironic --enable ironic-inspector
openstack service create --name ironic-inspector --description 'Bare Metal Introspection Service' --enable baremetal-introspection
openstack role add --user ironic-inspector --project services --project-domain default --user-domain default admin
openstack endpoint create  --region RegionOne --enable ironic-inspector admin http://{ironic-inspector-server-address}:5050
openstack endpoint create  --region RegionOne --enable ironic