建立HA Openstack云（六）：安装Nova-DOIT-数据产业媒体与服务平台

本文为《建立HA Openstack云》第六篇。第一篇：《建立高可用OpenStack云(一)：安装集群》，第二篇：《建立高可用OpenStack云(二)：安装Mysql》，第三篇：《建立HA Openstack云（三）：安装RabbitMQ》，第四篇：《建立HA Openstack云 (四)：安装Keystone》，第五篇：《建立HA Openstack云（五）：安装Glance》。

在MySQL, RabbitMQ, Keystone和Glance之后，我们要来安装要用Pacemaker管理的Nova服务，并让它们高度可用。

和其他教程一样，当编辑/etc/nova/api-paste.ini，还要改动服务主机：

service_protocol=http

service_host = clusterkeystone

service_port = 5000

auth_host = clusterkeystone

auth_port = 35357

auth_protocol = http

auth_uri = http://clusterkeystone:5000/

admin_tenant_name = service

admin_user = nova

admin_password = nova

还有，在做nova-manage db sync之前，一定要设置SQL主机为“clustermysql”，我这里这样设置/etc/nova/nova.conf：

[DEFAULT]

dhcpbridge_flagfile=/etc/nova/nova.conf

dhcpbridge=/usr/bin/nova-dhcpbridge

logdir=/var/log/nova

state_path=/var/lib/nova

lock_path=/run/lock/nova

allow_admin_api=true

use_deprecated_auth=false

auth_strategy=keystone

scheduler_driver=nova.scheduler.simple.SimpleScheduler

s3_host=clusterglance

ec2_host=clusterec2

ec2_dmz_host=clusterec2

rabbit_host=clusterrabbit

cc_host=clusterec2

nova_url=http://clusternova:8774/v1.1/

glance_api_servers=clusterglance:9292

image_service=nova.image.glance.GlanceImageService

iscsi_ip_prefix=192.168.4

sql_connection=mysql://novadbadmin:password@clustermysql/nova

ec2_url=http://clusterec2:8773/services/Cloud

keystone_ec2_url=http://clusterkeystone:5000/v2.0/ec2tokens

api_paste_config=/etc/nova/api-paste.ini

libvirt_type=kvm

libvirt_use_virtio_for_bridges=true

start_guests_on_host_boot=true

resume_guests_state_on_host_boot=true

novnc_enabled=true

novncproxy_base_url=http://5.9.x.x:6080/vnc_auto.html

vncserver_proxyclient_address=10.8.0.1

vncserver_listen=0.0.0.0

network_manager=nova.network.manager.FlatDHCPManager

public_interface=eth0

flat_interface=eth2

flat_network_bridge=br100

flat_injected=False

force_dhcp_release=true

iscsi_helper=tgtadm

connection_type=libvirt

root_helper=sudo nova-rootwrap

verbose=True

debug=True

multi_host=true

enabled_apis=ec2,osapi_compute,osapi_volume,metadata

再次检查你的/etc/hosts，确保你已经把“clustermysql”，“clusterglance”这样的虚拟IP声明成你在Keystone安装(在终端配置里)和MySQL认证时设定的那样。

现在你可以官方教程里的db_sync部分了。

我们必须停止服务并让它们由Pacemaker管理：

service nova-api stop

service nova-cert stop

service nova-compute stop

service nova-consoleauth stop

service nova-network stop

service nova-objectstore stop

service nova-scheduler stop

service nova-volume stop

service novnc stop

echo "manual" > /etc/init/nova-api.override

echo "manual" > /etc/init/nova-cert.override

echo "manual" > /etc/init/nova-compute.override

echo "manual" > /etc/init/nova-consoleauth.override

echo "manual" > /etc/init/nova-network.override

echo "manual" > /etc/init/nova-objectstore.override

echo "manual" > /etc/init/nova-scheduler.override

echo "manual" > /etc/init/nova-volume.override

echo "manual" > /etc/init/novnc.override

为服务下载资源代理：

cd /usr/lib/ocf/resource.d/openstack/

wget https://raw.github.com/leseb/OpenStack-ra/master/nova-api-ra

wget https://raw.github.com/leseb/OpenStack-ra/master/nova-cert-ra

wget https://raw.github.com/leseb/OpenStack-ra/master/nova-consoleauth-ra

wget https://raw.github.com/leseb/OpenStack-ra/master/nova-scheduler-ra

wget https://raw.github.com/leseb/OpenStack-ra/master/nova-vnc-ra

wget https://raw.github.com/alex88/nova-network-ra/master/nova-network-ra

wget https://raw.github.com/alex88/nova-compute-ra/master/nova-compute-ra

wget https://raw.github.com/alex88/nova-objectstore-ra/master/nova-objectstore-ra

wget https://raw.github.com/alex88/nova-volume-ra/master/nova-volume-ra

chmod +x *

设置服务随Pacemaker启动：

crm configure primitive novaApiService ocf:openstack:nova-api-ra