7. 在CentOS 6.3上通过源码安装Openstack Folsom之Nova使用Quantum

atkisc

此为连载教程，会在几天内发布完成，内容顺序如下：
1. 在CentOS 6.3上通过源码安装Openstack Folsom之Keystone安装
2. 在CentOS 6.3上通过源码安装Openstack Folsom之Glance安装
3. 在CentOS 6.3上通过源码安装Openstack Folsom之Nova安装
4. 在CentOS 6.3上通过源码安装Openstack Folsom之OpenVswitch安装
5. 在CentOS 6.3上通过源码安装Openstack Folsom之Quantum安装
6. 在CentOS 6.3上通过源码安装Openstack Folsom之Cinder安装
7. 在CentOS 6.3上通过源码安装Openstack Folsom之Nova使用Quantum
8. 在CentOS 6.3上通过源码安装Openstack Folsom之Novnc安装
9. 在CentOS 6.3上通过源码安装Openstack Folsom之Horizon安装
10. 在CentOS 6.3上通过源码安装Openstack Folsom之通过Glance上传镜像
11. 在CentOS 6.3上通过源码安装Openstack Folsom之通过Horizon启动实例

系统环境

1. CentOS 6.3 x86_64
   
2. Openstack Folsom
   
3. 服务器IP：172.16.24.138
   
4. 注：因为用到了Quantum，系统需要至少两块网卡
   
5. 这里使用的flat+dhcp模式，类似于nova-network的flatmanager模式，所以网段最好跟物理机网段一致，后面会单独发帖讲解gre和local还有vlan模式

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1. 修改/etc/nova/nova.conf，让nova使用Quantum

1. sed -i 's/# network_api_class=nova.network.api.API/network_api_class=nova.network.quantumv2.api.API/g' /etc/nova/nova.conf
   
2. sed -i 's/# quantum_admin_username=<None>/quantum_admin_username=quantum/g' /etc/nova/nova.conf
   
3. sed -i 's/# quantum_admin_password=<None>/quantum_admin_password=service/g' /etc/nova/nova.conf
   
4. sed -i 's/# quantum_admin_tenant_name=<None>/quantum_admin_tenant_name=tenant/g' /etc/nova/nova.conf
   
5. sed -i 's/# quantum_url_timeout=30/quantum_url_timeout=30/g' /etc/nova/nova.conf
   
6. sed -i 's/# quantum_admin_auth_url=http:\/\/localhost:5000\/v2.0/quantum_admin_auth_url=http:\/\/localhost:5000\/v2.0/g' /etc/nova/nova.conf
   
7. sed -i 's/# quantum_auth_strategy=keystone/quantum_auth_strategy=keystone/g' /etc/nova/nova.conf
   
8. sed -i 's/# quantum_url=http:\/\/127.0.0.1:9696/quantum_url=http:\/\/127.0.0.1:9696/g' /etc/nova/nova.conf
   
9. sed -i 's/# libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtBridgeDriver/libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver/g' /etc/nova/nova.conf
   
10. sed -i 's/# linuxnet_interface_driver=nova.network.linux_net.LinuxBridgeInterfaceDriver/linuxnet_interface_driver=nova.network.linux_net.LinuxOVSInterfaceDriver/g' /etc/nova/nova.conf
    
11. sed -i 's/# linuxnet_ovs_integration_bridge=br-int/linuxnet_ovs_integration_bridge=br-int/g' /etc/nova/nova.conf
    
12. sed -i 's/# libvirt_ovs_bridge=br-int/libvirt_ovs_bridge=br-int/g' /etc/nova/nova.conf
    
13. sed -i 's/# libvirt_use_virtio_for_bridges=false/libvirt_use_virtio_for_bridges=True/g' /etc/nova/nova.conf

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2. 修改/etc/libvirt/qemu.conf文件的如下一些选项

1. sed -i 's/#cgroup_device_acl = \[/cgroup_device_acl = \[/g' /etc/libvirt/qemu.conf
   
2. sed -i 's/#    "\/dev\/null", "\/dev\/full", "\/dev\/zero",/    "\/dev\/null", "\/dev\/full", "\/dev\/zero",/g' /etc/libvirt/qemu.conf
   
3. sed -i 's/#    "\/dev\/random", "\/dev\/urandom",/    "\/dev\/random", "\/dev\/urandom",/g' /etc/libvirt/qemu.conf
   
4. sed -i 's/#    "\/dev\/ptmx", "\/dev\/kvm", "\/dev\/kqemu",/    "\/dev\/ptmx", "\/dev\/kvm", "\/dev\/kqemu",/g' /etc/libvirt/qemu.conf
   
5. sed -i 's/#    "\/dev\/rtc", "\/dev\/hpet",/    "\/dev\/rtc", "\/dev\/hpet","\/dev\/net\/tun",/g' /etc/libvirt/qemu.conf
   
6. sed -i 's/#]/]/g' /etc/libvirt/qemu.conf

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3. 设置/etc/hosts

1. echo "172.16.24.138 `hostname`" >>/etc/hosts

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4. 启动Nova相关服务

1. /etc/init.d/libvirtd restart
   
2. nova-api-os-compute --config-file=/etc/nova/nova.conf &
   
3. nova-api-metadata --config-file=/etc/nova/nova.conf &
   
4. nova-compute --config-file=/etc/nova/nova.conf &
   
5. nova-scheduler --config-file=/etc/nova/nova.conf &

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