<1,project security>

  security groyps

Security groups--> are sets of IP filter rules() that ,define networking access,are applied to
all instances within a project

default security group denies all incoming
traffic and allows only outgoing traffic to your instance

common use case is to edit the
default security group to permit SSH access and ICMP access, so that users can log into and
ping instances.

Example,create a security group:

<2,Volumes are the Block Storage devices that you attach to instances to enable persistent
storage.>

<3,cloud disk type>

云硬盘类型定义了云硬盘的规格参数. 通常为云硬盘映射一组后端驱动器的存储容量. 例如:"性能"."SSD"."备份",等.

<4,运行OpenStack 命令行命令时加--debug parameters>

Example:

nova --debug list or keystone --debug user-list;

(关于OpenStack every core project client tools)

Internally, each command uses cURL command-line tools, which embed API requests. Open-
Stack APIs are RESTful APIs, and use the HTTP protocol. They include methods, URIs, media
types, and response codes.

nova console-log server(virtual machine instance)

nova credentials

nova diagnotics

nova endpoints

nova floating-ip-list

nova floating-ip-pool-list

libvirt virsh vncdisplay server_id or instance_id also kown as virtual machine

OpenStack novnc url获取

openStack 查看物理主机的主要资源信息

hypervisor-host

hypervisor-server hypervisor_host_name

nova hypervisor-show hypervisot_host_name (host-list)

nova hypervisor-status

openStack use