简介
当完成keystone、glance、nova、neutron组件的部署（部署方法参考之前的博文）之后，我们就可以创建第一个虚拟机实例了，下边具体操作下创建第一个虚拟机实例。
创建第一个实例
创建provider network
- 设置环境变量，这个在所有服务部署中都会用到，所以如果有报错，首先考虑是否设置环境变量
[root@localhost ~]# source admin-openstack.sh
- 创建网络
$ openstack network create --share --external --provider-physical-network provider --provider-network-type flat provider Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-14T14:37:39Z | | description | | | dns_domain | None | | id | 54adb94a-4dce-437f-a33b-e7e2e7648173 | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | None | | mtu | 1500 | | name | provider | | port_security_enabled | True | | project_id | 4c7f48f1da5b494faaa66713686a7707 | | provider:network_type | flat | | provider:physical_network | provider | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 3 | | router:external | External | | segments | None | | shared | True | | status | ACTIVE | | subnets | | | updated_at | 2017-03-14T14:37:39Z | +---------------------------+--------------------------------------+
- 创建子网
openstack subnet create --network provider --allocation-pool start=192.168.46.100,end=192.168.46.200 #设置创建的实例的地址范围 --dns-nameserver 223.5.5.5 --gateway 192.168.46.1 #设置dns，在此使用的是阿里的DNS，设置网关 --subnet-range 192.168.46.0/24 provider #设置子网掩码，网络名称为provider
- 检查创建的网络和子网
[root@localhost ~]# openstack network list +--------------------------------------+----------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+----------+--------------------------------------+ | 20583a37-6c4b-4f26-a5d6-fc7e643200d9 | provider | 4b8c0017-6ea7-4d7e-920c-4ea143d0b3ac | +--------------------------------------+----------+--------------------------------------+ [root@localhost ~]# openstack subnet list +--------------------------------------+----------+--------------------------------------+-----------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------+--------------------------------------+-----------------+ | 4b8c0017-6ea7-4d7e-920c-4ea143d0b3ac | provider | 20583a37-6c4b-4f26-a5d6-fc7e643200d9 | 192.168.46.0/24 | +--------------------------------------+----------+--------------------------------------+-----------------+
创建云主机规格
$ openstack flavor create --id 0 --vcpus 1 --ram 64 --disk 1 m1.nano +----------------------------+---------+ | Field | Value | +----------------------------+---------+ | OS-FLV-DISABLED:disabled | False | | OS-FLV-EXT-DATA:ephemeral | 0 | | disk | 1 | | id | 0 | | name | m1.nano | | os-flavor-access:is_public | True | | properties | | | ram | 64 | | rxtx_factor | 1.0 | | swap | | | vcpus | 1 | +----------------------------+---------+
创建key pair
- 设置demo环境变量
[root@localhost ~]# source demo-openstack.sh
- 生成key
$ ssh-keygen -q -N "" $ openstack keypair create --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 | +-------------+-------------------------------------------------+
可以直接使用key登录虚拟机
- 查看key
[root@localhost ~]# openstack keypair list +-------+-------------------------------------------------+ | Name | Fingerprint | +-------+-------------------------------------------------+ | mykey | 5b:ab:e1:3d:2f:0a:5c:a9:17:b5:d1:0d:85:05:fa:89 | +-------+-------------------------------------------------+
- 在安全组中增加两个规则，设置ping和22端口（为了可以ssh连接虚拟机）
$ openstack security group rule create --proto icmp default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-03-30T00:46:43Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 1946be19-54ab-4056-90fb-4ba606f19e66 | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 3f714c72aed7442681cbfa895f4a68d3 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | 89ff5c84-e3d1-46bb-b149-e621689f0696 | | updated_at | 2017-03-30T00:46:43Z | +-------------------+--------------------------------------+ $ openstack security group rule create --proto tcp --dst-port 22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-03-30T00:43:35Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 42bc2388-ae1a-4208-919b-10cf0f92bc1c | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 3f714c72aed7442681cbfa895f4a68d3 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | 89ff5c84-e3d1-46bb-b149-e621689f0696 | | updated_at | 2017-03-30T00:43:35Z | +-------------------+--------------------------------------+
-
查看安全组
[root@localhost ~]# openstack security group list +--------------------------------------+---------+-------------+----------------------------------+ | ID | Name | Description | Project | +--------------------------------------+---------+-------------+----------------------------------+ | f9ccf579-326e-41a2-8125-67290fcb5888 | default | 缺省安全组 | 9ce357d324a84c84a940e3db27a3bbde | +--------------------------------------+---------+-------------+----------------------------------+
启动实例
- 创建实例需要使用到network id，先通过如下命令查看
[root@localhost ~]# openstack network list +--------------------------------------+----------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+----------+--------------------------------------+ | 20583a37-6c4b-4f26-a5d6-fc7e643200d9 | provider | 4b8c0017-6ea7-4d7e-920c-4ea143d0b3ac | +--------------------------------------+----------+--------------------------------------+
- 启动实例
$ openstack security group rule create --proto tcp --dst-port 22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-03-30T00:43:35Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 42bc2388-ae1a-4208-919b-10cf0f92bc1c | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 3f714c72aed7442681cbfa895f4a68d3 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | 89ff5c84-e3d1-46bb-b149-e621689f0696 | | updated_at | 2017-03-30T00:43:35Z | +-------------------+--------------------------------------+