云计算之openstack(N版)虚拟机创建

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2.7创建虚拟机

2.7.1创建提供者虚拟网络

a在控制节点上,加载 admin 凭证来获取管理员能执行的命令访问权限

sourceadmin-openstack

b创建网络

openstack network create  --share \

  --provider-physical-network public \

  --provider-network-type flat public

 

验证

[[email protected]~]# neutron net-list

+--------------------------------------+--------+---------+

| id | name |subnets |

+--------------------------------------+--------+---------+

| 98f8acb1-6ee4-43c4-b28b-d2a71b76a870| public | |

+--------------------------------------+--------+---------+

 

c在网络上创建一个子网

openstack subnet create --network public \

  --allocation-pool start=192.168.56.100,end=192.168.56.200 \

  --dns-nameserver 192.168.56.2 --gateway 192.168.56.2 \

  --subnet-range 192.168.56.0/24 public-subnet

 

验证

[[email protected]~]# neutron subnet-list

+-------------------------------------+---------------+-----------------+-------------------------------------+

| id | name | cidr| allocation_pools |

+-------------------------------------+---------------+-----------------+-------------------------------------+

|5f912ae8-fa19-426d-91ca- | public-subnet | 192.168.56.0/24 |{"start": "192.168.56.100", "end": |

| 043e2e2d9664 | || "192.168.56.200"} |

+-------------------------------------+---------------+-----------------+-------------------------------------+

[[email protected]~]# neutron net-list

+--------------------------------------+--------+------------------------------------------------------+

| id | name |subnets |

+--------------------------------------+--------+------------------------------------------------------+

|98f8acb1-6ee4-43c4-b28b-d2a71b76a870 | public |5f912ae8-fa19-426d-91ca-043e2e2d9664 192.168.56.0/24 |

+--------------------------------------+--------+------------------------------------------------------+

 

 

2.7.2创建m1.nano类型

 

默认的最小规格的主机需要512 MB内存。对于环境中计算节点内存不足4 GB的,我们推荐创建只需要64 MB的``m1.nano``规格的主机。若单纯为了测试的目的,请使用``m1.nano``规格的主机来加载CirrOS镜像

 

openstack flavorcreate --id 0 --vcpus 1 --ram 64 --disk 1 m1.nano

 

a生成一个键值对

导入demo项目凭证

sourcedemo-openstack

b生成和添加秘钥对

ssh-keygen -q -N""

openstack keypaircreate --public-key ~/.ssh/id_rsa.pub mykey

 

+-------------+-------------------------------------------------+

| Field | Value |

+-------------+-------------------------------------------------+

| fingerprint |ee:3d:2e:97:d4:e2:6a:54:6d:0d:ce:43:39:2c:ba:4d |

| name | mykey |

| user_id |58126687cbcc4888bfa9ab73a2256f27 |

+-------------+-------------------------------------------------+

 

c验证公钥的添加

$ openstack keypairlist

 

+-------+-------------------------------------------------+

| Name |Fingerprint |

+-------+-------------------------------------------------+

| mykey |ee:3d:2e:97:d4:e2:6a:54:6d:0d:ce:43:39:2c:ba:4d |

+-------+-------------------------------------------------+

 

2.7.3.增加安全组

a添加规则到default安全组

openstack securitygroup rule create --proto icmp default

b允许安全 shell (SSH) 的访问

openstack securitygroup rule create --proto tcp --dst-port 22 default

 

2.7.4公网创建实例

在控制节点上,获得 admin 凭证来获取只有管理员能执行的命令的访问权限:

sourcedemo-openstack

 

一个实例指定了虚拟机资源的大致分配,包括处理器、内存和存储。

[[email protected]~]# openstack flavor list

+----+---------+-----+------+-----------+-------+-----------+

| ID | Name | RAM |Disk | Ephemeral | VCPUs | Is Public |

+----+---------+-----+------+-----------+-------+-----------+

| 0 | m1.nano | 64| 1 | 0 | 1 | True |

+----+---------+-----+------+-----------+-------+-----------+

 

a列出可用镜像

[[email protected]~]# openstack image list

+--------------------------------------+--------+--------+

| ID | Name |Status |

+--------------------------------------+--------+--------+

|01d13e57-6ae1-4bf8-98e2-0d83f3c7dd75 | cirros | active |

+--------------------------------------+--------+--------+

 

b列出可用安全组

[[email protected]~]# openstack security group list

+--------------------------------------+---------+------------------------+----------------------------------+

| ID | Name |Description | Project |

+--------------------------------------+---------+------------------------+----------------------------------+

|14f5bf0e-58ba-4be9-9967-89b59331ff74 | default | Default security group |a6c20f56f252445b85b247501b995e50 |

+--------------------------------------+---------+------------------------+----------------------------------+

 

c列出可用网络

[[email protected]~]# openstack network list

+--------------------------------------+--------+--------------------------------------+

| ID | Name |Subnets |

+--------------------------------------+--------+--------------------------------------+

|98f8acb1-6ee4-43c4-b28b-d2a71b76a870 | public | 5f912ae8-fa19-426d-91ca-043e2e2d9664|

+--------------------------------------+--------+--------------------------------------+

 

d启动虚拟机

openstack servercreate --flavor m1.nano --image cirros \

--nicnet-id=98f8acb1-6ee4-43c4-b28b-d2a71b76a870 --security-group default \

--key-name mykeydemo-instance

 

 

e检查实例的状态

[[email protected]~]# openstack server list

+--------------------------------------+---------------+--------+-----------------------+------------+

| ID | Name |Status | Networks | Image Name |

+--------------------------------------+---------------+--------+-----------------------+------------+

| c50d1093-1059-4a2c-9b88-89feab212f3b| demo-instance | ACTIVE | public=192.168.56.101 | cirros |

+--------------------------------------+---------------+--------+-----------------------+------------+

 

f使用虚拟控制台访问实例

openstack consoleurl show provider-instance

获取你势力的 Virtual Network Computing(VNC) 会话URL并从web浏览器访问它:

 

[[email protected]~]# openstack console url show demo-instance

+-------+------------------------------------------------------------------------------------+

| Field | Value |

+-------+------------------------------------------------------------------------------------+

| type | novnc |

| url |http://192.168.56.11:6080/vnc_auto.html?token=d7ec4e02-e485-47c1-b276-ae517779af26|

+-------+------------------------------------------------------------------------------------+

 

+-------+------------------------------------------------------------------------------------+

 技术分享

技术分享

CirrOS 镜像包含传统的用户名/密码认证方式并需在登录提示中提供这些这些认证。登录到 CirrOS 后,即可连接上虚拟机并登陆。


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