Nova

Nova（OpenStack Compute Service）是 OpenStack 最核心的服务，负责维护和管理云环境的计算资源，同时管理虚拟机生命周期

Nova 最核心的功能就是对一大堆的虚拟机进行管理，虚拟机可以是 各种各样（kvm, qemu, xen, vmware...），而且管理的方法也可以是各种各样（libvirt, xenapi, vmwareapi...）nova 中默认使用的 管理虚拟机的 API 是 libvirt

 

libvirt

libvirt 是一套用 c 语言写的 API，旨在为各种虚拟机提供一套通用的编程接口， 而且支持与 java，python 等语言的绑定。基于 libvirt 的虚拟机管理工具也有很多： virt-manager（GUI 工具），virsh（命令行工具）

涉及到几个概念：

  1. Domain：虚拟机的一个运行实例，简单的理解，就是一个虚拟机虚拟出来的操作系统。它的叫法可是多种多样：instance，guest OS，virsual machine， 其实都指的同一个概念

  2. Hypervisor：指的就是虚拟机本身，比如 qemu, kvm, xen... libvirt 由几个不同的部分组成，其中包括应用程序编程接口 (API) 库、一个守护进程 (libvirtd)，以及一个默认命令行实用工具 (virsh)，libvirtd 守护进程负责对虚拟机的管理工作，在用各种工具对虚拟机进行管理的时候，这个守护进程一定要跑起来，而且这个进程可以分为两种，一种是 root 权限的 libvirtd，一种是普通用户权限的 libvirtd，前者权限大，可以虚拟计算机的各种设备

 

qemu

qemu 是一个仿真器，即可用于来宾操作系统的虚拟化，也可以作为完整的机器 仿真器使用，运行使用主机 CPU 或其他 CPU 架构的操作系统

qemu 支持两种操作模式：用户模式仿真和系统模式仿真。用户模式仿真 允许一 个 CPU 构建的进程在另一个 CPU 上执行（执行主机 CPU 指令的动态翻译并相 应地转换 Linux 系统调用）。系统模式仿真 允许对整个系统进行仿真，包括处理 器和配套的外围设备，这时就应该使用 root 权限的 libvirtd

qemu 相关的命令

  • 创建一个名为 disk.img 的 128M 大小的 qcow 格式的磁盘映像文件，这个文件充当来宾操作系统的硬盘

# qemu-img create -f qcow disk.img 128M

  • -hda 指定磁盘映像文件，-cdrom指定光盘镜像文件，-boot 指定从哪里引导系统， d 是从 CD-ROM 引导，c 表示从硬盘引导

# qemu -hda disk.img -cdrom /root/cflinux-1.0.iso -boot d

  • 开始启动来宾操作系统

 # qemu -hda disk.img

 

qemu-img 命令行

qemu-img 命令行工具是 Xen 和 KVM 用来格式化各种文件系统的，可使用 qemu-img 格式化虚拟客户端映像、附加存储设备以及网络存储

  • 创建一个 10M 的镜像文件：sina_kvm.img，文件格式为：raw

# qemu-img create [-6] [-e] [-b base_image] [-f format] filename [sina_kvm]

  • 将现有映像转换成另一种格式,转换选项是将可识别格式转换为另一个映像格式

# qemu-img convert [-c] [-e] [-f format] filename [-O output_format] 
output_filename

  • 获得映像信息（info 参数显示磁盘映像信息）

# qemu-img info [-f format] filename

 

支持格式：

映像格式通常是自动获取的。支持以下格式

  • raw 磁盘映像格式（默认）。这个格式的优点是可以简单、容易地导出到其它模拟器中

    • 如果您的文件系统支持中断（例如在 Linux 中的 ext2 或者 ext3 以及 Windows 中的 NTFS），那么只有写入的字段会占用空间。使用 qemu-img info 了解 Unix/Linux 中映像或者 ls -ls 使用的实际大小

  • qcow2 映像格式，最万能的格式。使用它可获得较小映像,额外的 AES 加密法、zlib 压缩以及 对多 VM 快照的支持。目前也是虚拟池一直在使用的镜像格式

  • qcow 旧的 QEMU 映像格式。只用于与旧版本兼容，目前虚拟池已无该格式镜像文件

  • cow 写入映像格式的用户模式 Linux 副本。包含 cow 格式的目的只是为了与前 面的版本兼容。它无法在 Windows 中使用，虚拟池已无该格式镜像文件

  • vmdk VMware 3 和 4 兼容映像格式，虚拟池无该格式镜像文件

  • cloop Linux 压缩回送映像，只有在重复使用直接压缩的 CD-ROM 映像时有用， 比如在 Knoppix CD-ROM 中

 

创建实例

创建镜像

[root@controller ~]# glance image-create --name cirros --disk-format qcow2 --container-format bare < cirros-0.3.4-x86_64-disk.img
+------------------+--------------------------------------+
| Property         | Value                                |
+------------------+--------------------------------------+
| checksum         | ee1eca47dc88f4879d8a229cc70a07c6     |
| container_format | bare                                 |
| created_at       | 2021-12-07T01:27:31Z                 |
| disk_format      | qcow2                                |
| id               | c104aad4-604b-46d0-9e02-5d32e416286d |
| min_disk         | 0                                    |
| min_ram          | 0                                    |
| name             | cirros                               |
| owner            | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| protected        | False                                |
| size             | 13287936                             |
| status           | active                               |
| tags             | []                                   |
| updated_at       | 2021-12-07T01:27:31Z                 |
| virtual_size     | None                                 |
| visibility       | shared                               |
+------------------+--------------------------------------+

 

创建实例类型

[root@controller ~]# nova flavor-create test 1 2048 20 2
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public | Description |
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| 1  | test | 2048      | 20   | 0         |      | 2     | 1.0         | True      | -           |
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+

 

创建网络

[root@controller ~]# openstack network create --external --provider-physical-network provider --provider-network-type vlan extnet
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | UP                                   |
| availability_zone_hints   |                                      |
| availability_zones        |                                      |
| created_at                | 2021-12-07T01:29:24Z                 |
| description               |                                      |
| dns_domain                | None                                 |
| id                        | 67f46528-7152-4857-8df6-26fbfca13037 |
| ipv4_address_scope        | None                                 |
| ipv6_address_scope        | None                                 |
| is_default                | False                                |
| is_vlan_transparent       | None                                 |
| mtu                       | 1500                                 |
| name                      | extnet                               |
| port_security_enabled     | True                                 |
| project_id                | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| provider:network_type     | vlan                                 |
| provider:physical_network | provider                             |
| provider:segmentation_id  | 166                                  |
| qos_policy_id             | None                                 |
| revision_number           | 5                                    |
| router:external           | External                             |
| segments                  | None                                 |
| shared                    | False                                |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tags                      |                                      |
| updated_at                | 2021-12-07T01:29:25Z                 |
+---------------------------+--------------------------------------+

[root@controller ~]# openstack subnet create --network extnet --subnet-range 10.10.35.0/24 --gateway 10.10.35.1 extsubnet
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| allocation_pools  | 10.10.35.2-10.10.35.254              |
| cidr              | 10.10.35.0/24                        |
| created_at        | 2021-12-07T01:30:20Z                 |
| description       |                                      |
| dns_nameservers   |                                      |
| enable_dhcp       | True                                 |
| gateway_ip        | 10.10.35.1                           |
| host_routes       |                                      |
| id                | 6844910e-92ea-407f-afd5-a7caecc0f0e3 |
| ip_version        | 4                                    |
| ipv6_address_mode | None                                 |
| ipv6_ra_mode      | None                                 |
| name              | extsubnet                            |
| network_id        | 67f46528-7152-4857-8df6-26fbfca13037 |
| project_id        | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| revision_number   | 0                                    |
| segment_id        | None                                 |
| service_types     |                                      |
| subnetpool_id     | None                                 |
| tags              |                                      |
| updated_at        | 2021-12-07T01:30:20Z                 |
+-------------------+--------------------------------------+

 

创建安全组

[root@controller ~]# openstack security group create mytest
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field           | Value                                                                                                                                                 |
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+
| created_at      | 2021-12-07T01:31:06Z                                                                                                                                  |
| description     | mytest                                                                                                                                                |
| id              | 837da934-dc74-46bc-b0aa-4953755addac                                                                                                                  |
| name            | mytest                                                                                                                                                |
| project_id      | 2f1b48e86a2f4e1ab59730d9fff7c584                                                                                                                      |
| revision_number | 2                                                                                                                                                     |
| rules           | created_at='2021-12-07T01:31:06Z', direction='egress', ethertype='IPv4', id='bcbc4c54-e91c-4d56-bf20-2c8277404def', updated_at='2021-12-07T01:31:06Z' |
|                 | created_at='2021-12-07T01:31:06Z', direction='egress', ethertype='IPv6', id='eda37ae7-f8ae-41a8-ad7f-983e901e6ce5', updated_at='2021-12-07T01:31:06Z' |
| updated_at      | 2021-12-07T01:31:06Z                                                                                                                                  |
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+

 

创建规则

[root@controller ~]# openstack security group rule create --proto icmp mytest
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-12-07T01:32:06Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | efbd000b-5ee3-448d-bd64-ad9d9a86b63f |
| name              | None                                 |
| port_range_max    | None                                 |
| port_range_min    | None                                 |
| project_id        | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| protocol          | icmp                                 |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 837da934-dc74-46bc-b0aa-4953755addac |
| updated_at        | 2021-12-07T01:32:06Z                 |
+-------------------+--------------------------------------+
[root@controller ~]# openstack security group rule create --proto tcp mytest
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-12-07T01:32:14Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 0d8bfac8-2537-4e75-bcf1-dd90052254dc |
| name              | None                                 |
| port_range_max    | None                                 |
| port_range_min    | None                                 |
| project_id        | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| protocol          | tcp                                  |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 837da934-dc74-46bc-b0aa-4953755addac |
| updated_at        | 2021-12-07T01:32:14Z                 |
+-------------------+--------------------------------------+
[root@controller ~]# openstack security group rule create --proto tcp --dst-port 22 mytest
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-12-07T01:32:29Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 2fe64d87-b496-4d88-a27e-8361ade03936 |
| name              | None                                 |
| port_range_max    | 22                                   |
| port_range_min    | 22                                   |
| project_id        | 2f1b48e86a2f4e1ab59730d9fff7c584     |
| protocol          | tcp                                  |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 837da934-dc74-46bc-b0aa-4953755addac |
| updated_at        | 2021-12-07T01:32:29Z                 |
+-------------------+--------------------------------------+

 

创建实例

  • 查看镜像，网络，实例和安全组
[root@controller ~]# glance image-list
+--------------------------------------+--------+
| ID                                   | Name   |
+--------------------------------------+--------+
| c104aad4-604b-46d0-9e02-5d32e416286d | cirros |
+--------------------------------------+--------+

[root@controller ~]# nova flavor-list
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public | Description |
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| 1  | test | 2048      | 20   | 0         |      | 2     | 1.0         | True      | -           |
+----+------+-----------+------+-----------+------+-------+-------------+-----------+-------------+

[root@controller ~]# openstack network list
+--------------------------------------+--------+--------------------------------------+
| ID                                   | Name   | Subnets                              |
+--------------------------------------+--------+--------------------------------------+
| 67f46528-7152-4857-8df6-26fbfca13037 | extnet | 6844910e-92ea-407f-afd5-a7caecc0f0e3 |
+--------------------------------------+--------+--------------------------------------+

[root@controller ~]# openstack security group list
+--------------------------------------+---------+------------------------+----------------------------------+
| ID                                   | Name    | Description            | Project                          |
+--------------------------------------+---------+------------------------+----------------------------------+
| 837da934-dc74-46bc-b0aa-4953755addac | mytest  | mytest                 | 2f1b48e86a2f4e1ab59730d9fff7c584 |
| 8a8017e5-b9fc-414e-ac18-a21090dd1e0c | default | Default security group | 2f1b48e86a2f4e1ab59730d9fff7c584 |
+--------------------------------------+---------+------------------------+----------------------------------+
  • 创建实例
[root@controller ~]# openstack server create --flavor test --image cirros --nic net-id=67f46528-7152-4857-8df6-26fbfca13037 --security-group mytest vm1
+-------------------------------------+-----------------------------------------------+
| Field                               | Value                                         |
+-------------------------------------+-----------------------------------------------+
| OS-DCF:diskConfig                   | MANUAL                                        |
| OS-EXT-AZ:availability_zone         |                                               |
| OS-EXT-SRV-ATTR:host                | None                                          |
| OS-EXT-SRV-ATTR:hypervisor_hostname | None                                          |
| OS-EXT-SRV-ATTR:instance_name       |                                               |
| OS-EXT-STS:power_state              | NOSTATE                                       |
| OS-EXT-STS:task_state               | scheduling                                    |
| OS-EXT-STS:vm_state                 | building                                      |
| OS-SRV-USG:launched_at              | None                                          |
| OS-SRV-USG:terminated_at            | None                                          |
| accessIPv4                          |                                               |
| accessIPv6                          |                                               |
| addresses                           |                                               |
| adminPass                           | H3W7M9LHeMSh                                  |
| config_drive                        |                                               |
| created                             | 2021-12-07T01:34:52Z                          |
| flavor                              | test (1)                                      |
| hostId                              |                                               |
| id                                  | b5a3e477-33a0-49fe-af90-78c9b44d39bb          |
| image                               | cirros (c104aad4-604b-46d0-9e02-5d32e416286d) |
| key_name                            | None                                          |
| name                                | vm1                                           |
| progress                            | 0                                             |
| project_id                          | 2f1b48e86a2f4e1ab59730d9fff7c584              |
| properties                          |                                               |
| security_groups                     | name='837da934-dc74-46bc-b0aa-4953755addac'   |
| status                              | BUILD                                         |
| updated                             | 2021-12-07T01:34:52Z                          |
| user_id                             | d4463a3c93fc41429ab215bf04418374              |
| volumes_attached                    |                                               |
+-------------------------------------+-----------------------------------------------+
  • 等待一会查看
[root@controller ~]# openstack server list
+--------------------------------------+------+--------+--------------------+--------+--------+
| ID                                   | Name | Status | Networks           | Image  | Flavor |
+--------------------------------------+------+--------+--------------------+--------+--------+
| b5a3e477-33a0-49fe-af90-78c9b44d39bb | vm1  | ACTIVE | extnet=10.10.35.19 | cirros | test   |
+--------------------------------------+------+--------+--------------------+--------+--------+

 

实例管理

查看实例信息

[root@controller ~]# openstack server list
+--------------------------------------+------+--------+--------------------+--------+--------+
| ID                                   | Name | Status | Networks           | Image  | Flavor |
+--------------------------------------+------+--------+--------------------+--------+--------+
| b5a3e477-33a0-49fe-af90-78c9b44d39bb | vm1  | ACTIVE | extnet=10.10.35.19 | cirros | test   |
+--------------------------------------+------+--------+--------------------+--------+--------+

[root@controller ~]# nova list            
+--------------------------------------+------+--------+------------+-------------+--------------------+
| ID                                   | Name | Status | Task State | Power State | Networks           |
+--------------------------------------+------+--------+------------+-------------+--------------------+
| b5a3e477-33a0-49fe-af90-78c9b44d39bb | vm1  | ACTIVE | -          | Running     | extnet=10.10.35.19 |
+--------------------------------------+------+--------+------------+-------------+--------------------+

 

启动实例

[root@controller ~]# openstack server start vm1

[root@controller ~]# nova start vm1
Request to start server vm1 has been accepted.

 

停止实例

[root@controller ~]# openstack server stop vm1

[root@controller ~]# nova stop vm1 
Request to stop server vm1 has been accepted.

 

重启实例

[root@controller ~]# openstack server reboot vm1

[root@controller ~]# nova reboot vm1

 

挂起实例

[root@controller ~]# openstack server unpause vm1

[root@controller ~]# nova unpause vm1

 

调整实例

[root@controller ~]# openstack server resize vm1

[root@controller ~]# nova resize vm1

 

重建实例

[root@controller ~]# nova rebuild vm1 --image <image_name>

 

删除实例

[root@controller ~]# nova delete vm1

[root@controller ~]# openstack server delete vm1

 

安全组管理

添加安全组

[root@controller ~]# openstack security group create <name>

 

查看安全组列表和详细

[root@controller ~]# openstack security group list 
+--------------------------------------+---------+-------------+----------------------------------+
| ID                                   | Name    | Description | Project                          |
+--------------------------------------+---------+-------------+----------------------------------+
| 3e1101bf-311b-44fc-b75a-b54081f7fdbb | default | 缺省安全组  | 856f7fd215b04578af65a4fefdef4240   |
| cbcd0fb2-d0d5-4643-834e-188d48a87fd6 | default | 缺省安全组  | c061000787a14725a9dff7078912426c   |
+--------------------------------------+---------+-------------+----------------------------------+

[root@controller ~]# openstack security group show <security_group_id>

 

创建安全组规则

[root@controller ~]# openstack security group rule create  --src-ip <ipaddress> --dst-port <port> --proto <协议>  <security_group_name>
[root@controller ~]# openstack security group rule  create --protoco tcp --dst-port 22 test  
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-10-07T15:38:28Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 6d833ce5-e256-41b4-abc8-dbf673c7b2ab |
| name              | None                                 |
| port_range_max    | 22                                   |
| port_range_min    | 22                                   |
| project_id        | c061000787a14725a9dff7078912426c     |
| protocol          | tcp                                  |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | cdb214ee-a656-4a2d-8d94-ca79c1843295 |
| updated_at        | 2021-10-07T15:38:28Z                 |
+-------------------+--------------------------------------+

 

删除安全组

[root@controller ~]# openstack security group delete test

 

计算节点管理

查看计算节点列表信息

[root@controller ~]# nova hypervisor-list 
+--------------------------------------+---------------------+-------+---------+
| ID                                   | Hypervisor hostname | State | Status  |
+--------------------------------------+---------------------+-------+---------+
| d588177c-6351-463c-a9f6-936b3b1f1152 | controller          | up    | enabled |
+--------------------------------------+---------------------+-------+---------+

[root@controller ~]# openstack hypervisor list  
+----+---------------------+-----------------+---------------+-------+
| ID | Hypervisor Hostname | Hypervisor Type | Host IP       | State |
+----+---------------------+-----------------+---------------+-------+
|  1 | controller          | QEMU            | 192.168.1.101 | up    |
+----+---------------------+-----------------+---------------+-------+

 

查看计算节点统计信息

[root@controller ~]# nova hypervisor-stats
+----------------------+-------+
| Property             | Value |
+----------------------+-------+
| count                | 1     |
| current_workload     | 0     |
| disk_available_least | 1654  |
| free_disk_gb         | 1659  |
| free_ram_mb          | 47107 |
| local_gb             | 1699  |
| local_gb_used        | 40    |
| memory_mb            | 49667 |
| memory_mb_used       | 2560  |
| running_vms          | 1     |
| vcpus                | 8     |
| vcpus_used           | 2     |
+----------------------+-------+

[root@controller ~]# openstack hypervisor stats show 
+----------------------+-------+
| Field                | Value |
+----------------------+-------+
| count                | 1     |
| current_workload     | 0     |
| disk_available_least | 1654  |
| free_disk_gb         | 1659  |
| free_ram_mb          | 47107 |
| local_gb             | 1699  |
| local_gb_used        | 40    |
| memory_mb            | 49667 |
| memory_mb_used       | 2560  |
| running_vms          | 1     |
| vcpus                | 8     |
| vcpus_used           | 2     |
+----------------------+-------+

 

查看计算节点详细信息

[root@controller ~]# nova hypervisor-list 
+--------------------------------------+---------------------+-------+---------+
| ID                                   | Hypervisor hostname | State | Status  |
+--------------------------------------+---------------------+-------+---------+
| d588177c-6351-463c-a9f6-936b3b1f1152 | controller          | up    | enabled |
+--------------------------------------+---------------------+-------+---------+

[root@controller ~]# nova hypervisor-show d588177c-6351-463c-a9f6-936b3b1f1152
[root@controller ~]# openstack hypervisor d588177c-6351-463c-a9f6-936b3b1f1152

 

查看计算节点所有虚拟机列表

[root@controller ~]# nova hypervisor-servers controller 
+--------------------------------------+-------------------+--------------------------------------+---------------------+
| ID                                   | Name              | Hypervisor ID                        | Hypervisor Hostname |
+--------------------------------------+-------------------+--------------------------------------+---------------------+
| 8ef02044-d9e1-4d5e-988b-5323f8a185ba | instance-00000001 | d588177c-6351-463c-a9f6-936b3b1f1152 | controller          |
+--------------------------------------+-------------------+--------------------------------------+---------------------+

 

查看计算节点更新时间

[root@controller ~]# nova hypervisor-uptime d588177c-6351-463c-a9f6-936b3b1f1152 
+---------------------+---------------------------------------------------------------+
| Property            | Value                                                         |
+---------------------+---------------------------------------------------------------+
| hypervisor_hostname | controller                                                    |
| id                  | d588177c-6351-463c-a9f6-936b3b1f1152                          |
| state               | up                                                            |
| status              | enabled                                                       |
| uptime              |  23:04:54 up  2:03,  4 users,  load average: 0.02, 0.10, 0.13 |
|                     |                                                               |
+---------------------+---------------------------------------------------------------+

 

查看可用域列表信息

[root@controller ~]# nova availability-zone-list   
+-----------------------+----------------------------------------+
| Name                  | Status                                 |
+-----------------------+----------------------------------------+
| internal              | available                              |
| |- controller         |                                        |
| | |- nova-conductor   | enabled :-) 2021-10-07T15:05:30.000000 |
| | |- nova-consoleauth | enabled :-) 2021-10-07T15:05:27.000000 |
| | |- nova-scheduler   | enabled :-) 2021-10-07T15:05:31.000000 |
| nova                  | available                              |
| |- controller         |                                        |
| | |- nova-compute     | enabled :-) 2021-10-07T15:05:28.000000 |
+-----------------------+----------------------------------------+

[root@controller ~]# openstack availability zone list  
+-----------+-------------+
| Zone Name | Zone Status |
+-----------+-------------+
| internal  | available   |
| nova      | available   |
| nova      | available   |
| nova      | available   |
| nova      | available   |
+-----------+-------------+

 

查看主机集合列表信息

[root@controller ~]# nova aggregate-list 
+----+------+-------------------+------+
| Id | Name | Availability Zone | UUID |
+----+------+-------------------+------+
+----+------+-------------------+------+
[root@controller ~]# openstack aggregate list

 

配额管理

查看默认配额列表信息

[root@controller ~]# nova quota-defaults 
+----------------------+-------+
| Quota                | Limit |
+----------------------+-------+
| instances            | 10    |
| cores                | 20    |
| ram                  | 51200 |
| metadata_items       | 128   |
| key_pairs            | 100   |
| server_groups        | 10    |
| server_group_members | 10    |
+----------------------+-------+

 

更新类配额

[root@controller ~]# nova quota-class-update --instance 20 default 
[root@controller ~]# nova quota-defaults 
+----------------------+-------+
| Quota                | Limit |
+----------------------+-------+
| instances            | 20    |
| cores                | 20    |
| ram                  | 51200 |
| metadata_items       | 128   |
| key_pairs            | 100   |
| server_groups        | 10    |
| server_group_members | 10    |
+----------------------+-------+

 

posted @ 2021-12-06 21:24  衡衡酱  阅读(644)  评论(0)    收藏  举报
Live2D