Openstack uses dashboard to perform image operations, manage instances, and other operations

One 、OpenStack Introduce

OpenStack Provide scalable and elastic for private cloud and public cloud Cloud computing services Cloud computing services Cloud computing services . The goal of the project is to provide simple implementation 、 Scalable 、 Enrich 、 Standard unified cloud computing management platform .

Two 、OpenStack What can be done

OpenStack The main goal of is to manage the resources of the data center , Simplify resource allocation . It manages three parts of resources , Namely ：

• Computing resources ：OpenStack Can plan and manage a large number of virtual machines , This allows enterprises or service providers to provide computing resources on demand ; Developers can use API Access computing resources to create Cloud Applications , Administrators and users can use web Access these resources ;
• Storage resources ：OpenStack It can provide the required object and block storage resources for cloud services or Cloud Applications . Because there is a demand for performance and price , Many organizations are no longer satisfied with traditional enterprise storage technology , therefore OpenStack Configurable object storage or block storage functions can be provided according to user needs ;
• Network resources ： Today's data centers have a lot of configuration work , Server, such as 、 Network devices 、 The storage device 、 All safety devices need to be configured , And they will also be divided into more virtual devices or virtual networks ; This can lead to IP Number of addresses 、 Routing configuration 、 Safety rules will explode ; Traditional network management technology can not really be highly scalable 、 Highly automated management of next generation networks ; thus OpenStack Provides plug-in 、 Scalable 、API Driven network and IP management function ;

3、 ... and 、 Related simple operations

1、 You need to configure the image before performing relevant operations on the instance 、 Network and routing

Disc name 、 Upload image file 、 Image format

  After uploading, you can delete the image and other operations 、 The upload time depends on the computer and the size of the image file

 2、 Creating networks

  network address 、 gateway IP Etc. can be set by yourself

The address allocation pool is used for DHCP Distribute IP、DNS Server resolves domain name

3、 route

  The main function of routing is to forward information

 4、 example

  Note the available domains

Previously uploaded centos7 The image of has been deleted , Later, I uploaded a redhat System image

Assign a running environment to the image

  Instance created successfully , Right click the instance to perform relevant operations on the instance ; The instance can be run directly if the machine performance allows .

Reference article ： What is? OpenStack？OpenStack What can be done ？ - Huawei (huawei.com)