Ubuntu搭建Openstack平台（kilo）(六.实例化网络，创建实例)

实例化网络

参考文档：http://www.aboutyun.com/thread-13187-1-1.html
http://www.aboutyun.com/thread-14639-1-1.html
http://docs.openstack.org/mitaka/install-guide-ubuntu/launch-instance.html#create-virtual-networks
一.创建外部网络

• 加载环境

source admin-openrc.sh

• 创建网络

neutron net-create ext-net --shared --router:external --provider:physical_network external --provider:network_type flat
Created a new network:
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | True                                 |
| id                        | 0e62efcd-8cee-46c7-b163-d8df05c3c5ad |
| mtu                       | 1500                                 |
| name                      | provider                             |
| port_security_enabled     | True                                 |
| provider:network_type     | flat                                 |
| provider:physical_network | provider                             |
| provider:segmentation_id  |                                      |
| router:external           | False                                |
| shared                    | True                                 |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tenant_id                 | d84313397390425c8ed50b2f6e18d092     |
+---------------------------+--------------------------------------+

二.创建外网上的子网

neutron subnet-create ext-net EXTERNAL_NETWORK_CIDR --name ext-subnet   --allocation-pool start=FLOATING_IP_START,end=FLOATING_IP_END  --disable-dhcp --gateway EXTERNAL_NETWORK_GATEWAY

#EXTERNAL_NETWORK_CIDR为可用上网IP网段（**一定要能上网**），如203.0.113.0/24，FLOATING_IP_START,end=FLOATING_IP_END是指floating IP的起始IP与终止IP，如203.0.113.100 203.0.113.156，EXTERNAL_NETWORK_GATEWAY为网关，一般是网段的第一个IP 如203.0.113.1

例如：

neutron subnet-create ext-net 203.0.113.0/24 --name ext-subnet  --allocation-pool start=203.0.113.100,end=203.0.113.156  --disable-dhcp --gateway 203.0.113.1
Created a new subnet:
+-------------------+----------------------------------------------------+
| Field             | Value                                              |
+-------------------+----------------------------------------------------+
| allocation_pools  | {"start": "203.0.113.101", "end": "203.0.113.250"} |
| cidr              | 203.0.113.0/24                                     |
| dns_nameservers   | 8.8.4.4                                            |
| enable_dhcp       | True                                               |
| gateway_ip        | 203.0.113.1                                        |
| host_routes       |                                                    |
| id                | 5cc70da8-4ee7-4565-be53-b9c011fca011               |
| ip_version        | 4                                                  |
| ipv6_address_mode |                                                    |
| ipv6_ra_mode      |                                                    |
| name              | provider                                           |
| network_id        | 0e62efcd-8cee-46c7-b163-d8df05c3c5ad               |
| subnetpool_id     |                                                    |
| tenant_id         | d84313397390425c8ed50b2f6e18d092                   |
+-------------------+----------------------------------------------------+

三.创建租户（project）网络

• 加载环境（特别重要）

source demo-openrc.sh

• 创建租户（project）网络

neutron net-create demo-net

• 创建租户（project）网络子网

neutron subnet-create demo-net TENANT_NETWORK_CIDR  --name demo-subnet --gateway TENANT_NETWORK_GATEWAY
#TENANT_NETWORK_CIDR为租户（project）网络，一般用192.168.**，**/24，TENANT_NETWORK_GATEWAY为网管一般为192.168.**.1，可以根据自己的需求设置。

例如：

neutron subnet-create demo-net 192.168.1.0/24 --name demo-subnet --gateway 192.168.1.1
Created a new subnet:
+-------------------+------------------------------------------------+
| Field             | Value                                          |
+-------------------+------------------------------------------------+
| allocation_pools  | {"start": "172.16.1.2", "end": "172.16.1.254"} |
| cidr              | 192.168.1.0/24                                 |
| dns_nameservers   |                                                |
| enable_dhcp       | True                                           |
| gateway_ip        | 192.168.1.1                                    |
| host_routes       |                                                |
| id                | 3482f524-8bff-4871-80d4-5774c2730728           |
| ip_version        | 4                                              |
| ipv6_address_mode |                                                |
| ipv6_ra_mode      |                                                |
| name              | demo-subnet                                    |
| network_id        | 7c6f9b37-76b4-463e-98d8-27e5686ed083           |
| tenant_id         | f5b2ccaa75ac413591f12fcaa096aa5c               |
+-------------------+------------------------------------------------+

四.创建租户路由，并附加外网和租户网络到路由

• 创建租户路由

neutron router-create demo-router

• 连接路由器到租户网络

neutron router-interface-add demo-router demo-subnet
#输出：Added interface bff6605d-824c-41f9-b744-21d128fc86e1 to router demo-router.

• 连接路由器到外部网络通过设置为网关

neutron router-gateway-set demo-router ext-net

五.验证（自己成功过2次，失败过3次，已无语）

• 控制节点ping 203.0.113.100（能ping通）

ping -c 4 203.0.113.100

创建实例

（其实早忘记，一直用web页面创建的，温故一下）
一.环境

• 加载环境

source admin-openrc.sh

• 生成并添加一个密钥对

nova keypair-add demo-key

二.创建实例

• 列出flavors，镜像与网络，安全组

nova flavor-list
nova image-list
neutron net-list
nova secgroup-list

• 创建实例(DEMO_NET_ID为上面列出的demo-net网络的ID)

nova boot --flavor m1.tiny --image cirros-0.3.4-x86_64 --nic net-id=DEMO_NET_ID --security-group default --key-name demo-key test1

• 列出实例

nova list
+------------------------------------+---------------+--------+------------+-------------+----------------------+
|ID                                  |Name           | Status | Task State | Power State | Networks             |
+-------------------------------------+--------------+--------+------------+-------------+----------------------+
|02caa2ca-d6e6-46fd-b4a9-e432bcde2e6a|test1          | ACTIVE | -          | Running     | demo-net=192.168.1.3 |
+------------------------------------+---------------+--------+------------+-------------+----------------------+

• 通过浏览器访问实例(将url加载到浏览器中查看）

nova get-vnc-console test1 novnc
+-------+---------------------------------------------------------------------------------+
| Field | Value                                                                           |
+-------+---------------------------------------------------------------------------------+
| type  | novnc                                                                           |
| url   | http://controller:6080/vnc_auto.html?token=5eeccb47-525c-4918-ac2a-3ad1e9f1f493 |
+-------+---------------------------------------------------------------------------------+

• 实例的用户名：cirros，密码：cubswin:)，没什么问题的话，在控制台中ping百度等外部网络是可以ping通的

  注意：以前搭建的，可以运行，如果上面写的有一些问题，谢谢指出来。