CN111880907A - Method for starting virtual machine by utilizing ISO (International organization for standardization) aiming at OpenStack platform - Google Patents
Method for starting virtual machine by utilizing ISO (International organization for standardization) aiming at OpenStack platform Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
- G06F9/44526—Plug-ins; Add-ons
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45562—Creating, deleting, cloning virtual machine instances
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45575—Starting, stopping, suspending or resuming virtual machine instances
Abstract
The invention discloses a method for starting a virtual machine by utilizing ISO (International organization for standardization) aiming at an OpenStack platform, which relates to the technical field of ISO optical disk files and comprises the following steps: the user transmits the ISO optical disk file/ISO optical disk file and the drive file to the host machine through the file transmission tool; by calling a command line or API: 1) creating a blank Volume with the source of an ISO optical disk file in a Volume column of an OpenStack console, and starting a virtual machine in a Volume mode; 2) logging in the started virtual machine, installing the custom plug-in according to the requirement, and closing the virtual machine after the installation is finished; 3) automatically generating a mirror Image file template in an Image field of an openstack console; 4) and separating the volume with the image file template, starting another virtual machine by the volume, downloading the image file template on the other virtual machine, and transmitting the image file template to the user machine through a file transmission tool. The method can lead the ISO optical disk files in the local or other cloud disks into the mirror image warehouse, customize the virtual machine and ensure the realization of user requirements.
Description
Technical Field
The invention relates to the technical field of OpenStack, in particular to a method for starting a virtual machine by utilizing ISO (International organization for standardization) aiming at an OpenStack platform.
Background
Cloud computing is a service related to information technology, software and the internet, and takes the internet as a center, and provides fast and safe cloud computing service and data storage on a website, so that every person using the internet can use huge computing resources and data centers on the network. The core of cloud computing is that many computer resources can be coordinated together, so that a user can acquire infinite resources through a network, and the acquired resources are not limited by time and space.
Openstack is an open source project aimed at providing software for the construction and management of public and private clouds. OpenStack covers various aspects of networking, virtualization, operating systems, servers, and so on. OpenStack provides scalable and resilient cloud computing services for private and public clouds. The project aims to provide a cloud computing management platform which is simple to implement, can be expanded in a large scale, is rich and has a unified standard.
Based on this, in order to better meet the requirement of creating a virtual machine by user customization and avoid the constraint of users in the existing mirror image files such as QCOW2, a method for starting the virtual machine by using ISO is designed for the OpenStack platform, and user privatization is realized.
Disclosure of Invention
Aiming at the requirements and the defects of the prior art development, the invention provides a method for starting a virtual machine by utilizing ISO (International organization for standardization) on an OpenStack platform, so that a user has the authority to provide an ISO optical disk file, transparently installs custom software, customizes custom configuration, supplements a custom security plug-in, autonomously realizes the process of creating the virtual machine and ensures the full realization of the user requirements no matter in a Linux operating system or a Windows operating system.
The invention discloses a method for starting a virtual machine by utilizing ISO (International organization for standardization) aiming at an OpenStack platform, which adopts the following technical scheme for solving the technical problems:
a method for starting a virtual machine by utilizing ISO aiming at an OpenStack platform comprises the following implementation contents:
(1) the user transmits the ISO optical disk file/ISO optical disk file and the drive file to the host machine through the file transmission tool;
(2) creating a blank Volume with the source of the ISO optical disk file in a Volume column of an OpenStack console by calling a command line or an API (application program interface) mode, and starting a virtual machine in a Volume starting mode;
(3) logging in the started virtual machine, installing the custom plug-in according to the requirement by calling a command line or an API mode, and closing the virtual machine after the installation is finished;
(4) automatically generating an Image file template in a Raw format or a Qcow2 format in an Image field of an openstack console by calling a command line or an API (application programming interface) mode;
(5) and separating and generating a volume with the image file template by calling a command line or an API (application program interface), starting another virtual machine by the volume, downloading the image file template on the other virtual machine through a wide image-download command, and transmitting the image file template to the user machine through a file transmission tool.
Optionally, a blank Volume from the ISO optical disc file is created in the Volume column of the OpenStack console by calling a command line or an API, and the virtual machine is started in a Volume starting manner, in the process,
(2.1) when calling the command line, needing to specify the volume size, the available domain available-zone, the volume type and the bootable disk bootable, or adopting a POST request mode to create a blank volume by using an ISO optical disk file when calling the API mode;
(2.2) when the command line is called, the uuid of the volume, the dimension of the specification, the available domain availability-zone and the uuid of the network are required to be specified, or when the API mode is called, the virtual machine is started in a volume starting mode by adopting a POST request mode.
Further optionally, step (3) is performed, and after the virtual machine is closed, the virtual machine may be unloaded by calling the command line.
Further optionally, in the process of automatically generating the image file template by calling a command line or an API,
when the command line is called, uuid of volume, dimension or, available domain, and uuid of network need to be specified, or, when the API mode is called, a POST request mode is adopted to generate a mirror image file template.
Further optionally, the volume with the image file template is generated separately by calling a command line or an API manner, and another virtual machine is started with the volume, in the process,
(5.1) when calling the API mode, adopting a DELETE request mode to separately generate a volume with the mirror image file template;
(5.2) when the command line is called, the uuid of the volume, the dimension of the specification, the available domain availability-zone and the uuid of the network are required to be specified, or when the API mode is called, a POST request mode is adopted, and another virtual machine is started in a volume starting mode.
Further optionally, for a Linux system, the ISO optical disc file is a Linux ISO optical disc file, and the user transmits the Linux ISO optical disc file to the host through an xftp file transmission tool.
Further optionally, for the Windows system, the ISO disc file is a Windows ISO disc file, and at this time,
the user transmits the Windows ISO optical disc file and virtio driver file to the host computer through the xftp file transfer tool,
and prompting to load the PCI equipment and the network equipment in the virtio drive file in the process of starting the virtual machine in a volume starting mode.
Further optionally, in the process that the user transmits the ISO disc file/ISO disc file and the drive file to the host through the file transmission tool, it is necessary to specify an image type disk-format, a container type container-format, a public image-public, and an upload image path file.
Further alternatively, the specification size of the blank volume must be larger than the specification sizes of the ISO/ISO optical disc file and the drive file.
Compared with the prior art, the method for starting the virtual machine by utilizing the ISO for the OpenStack platform has the beneficial effects that:
1) the method of the invention is in Linux operating system, or in Windows operating system, users have the authority to provide ISO CD file, install custom software transparently, customize custom configuration, supplement custom security plug-in, realize the procedure of creating the virtual machine autonomously, have guaranteed the abundant realization of the user's demand;
2) the method can lead the ISO optical disk files in local or other cloud disks into the mirror image warehouse, and customize the virtual machine, so that a user can avoid the process of generating a QCOW2 or RAW mirror image template, directly and autonomously install the optical disk files, simultaneously abandon the pre-support plug-in and the basic configuration in the cloud platform standard template, and transparently install the self-defined plug-in as the user wants.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention for generating a Linux image file template;
FIG. 2 is a flowchart of generating a Windows image file template according to a second embodiment of the present invention.
Detailed Description
In order to make the technical scheme, the technical problems to be solved and the technical effects of the present invention more clearly apparent, the following technical scheme of the present invention is clearly and completely described with reference to the specific embodiments.
The first embodiment is as follows:
with reference to fig. 1, this embodiment provides a method for starting a virtual machine by using ISO for an OpenStack platform, where the implementation content of the method includes:
(1) and the user transmits the Linux ISO optical disk file to the host machine through the xftp file transmission tool.
In this embodiment, taking a CentOS 7.2 system as an example, in the process of transmitting a Linux ISO disc file, an image type disk-format needs to be specified, a container type container-format needs to be specified, a public image-public needs to be specified, a path file for uploading an image needs to be specified, and the execution codes are as follows:
openstack image create\
--disk-format iso--container-format bare\
--public\
--file./CentOS-7.2-x86_64-Minimal-1511.iso\
CentOS-7.2-x86_64-Minimal-1511iso
at this time, the ISO optical disc file name, MD5 value and size are specifically:
CentOS-7.2-x86_64-Minimal-1511iso 7f81c165-ac3a-4395-91c1-c46507769a73 603MB
(2) and creating a blank Volume with the source of the ISO optical disk file in a Volume column of the OpenStack console by calling a command line or an API (application program interface) mode, and starting the virtual machine in a Volume starting mode. In the course of this process, the process,
(2.1) when the command line is called, the volume size, the available domain available-zone, the volume type and the bootable disk bootable need to be specified, and the specification size of the blank volume needs to be larger than that of the Linux ISO optical disk file.
The code implementation and feedback results are as follows:
or, when calling the API mode, a POST request mode is adopted, a blank volume is created with a Linux ISO disc file, and the code implementation is as follows:
(1)
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes
the request mode comprises the following steps:
POST mode
A request body:
a returning body:
(2)
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes/cd98f871-f741-4527-b3bd-23b 888c46173/action
the request mode comprises the following steps:
OST mode
A request body:
a returning body:
none.
(2.2) when the command line is called, the uuid of the volume, the specification size of the navigator, the available domain availability-zone and the uuid of the network are required to be specified, when the API mode is called, a POST request mode is adopted, the virtual machine is started in a volume starting mode, namely, the empty volume is connected to the virtual machine, at the moment, the uuid of the virtual machine and the uuid of the volume are added behind the command openstack addvolume, and the code implementation and feedback results are as follows:
openstack server\
add volume f488ccae-0c87-4d1c-83bc-e5986a4aa1b6\
cd98f871-f741-4527-b3bd-23b888c46173
or when calling the API mode, adopting a POST request mode and starting the virtual machine in a volume starting mode, wherein the code is realized as follows:
URL:
http://*.*.*.*:8774/v2.1/servers/f488ccae-0c87-4d1c-83bc-e5986a4aa1b6/os-volume_attachments
calling mode:
POST mode
A request body:
a returning body:
(3) and logging in the started virtual machine, installing the user-defined plug-in according to the requirement by calling a command line or an API (application program interface), and closing the virtual machine after the installation is finished.
The virtual machine may then be unloaded by calling the command line, and this unloading process may not be performed.
(4) Through calling a command line or an API mode, a Linux Image file template in a Raw format or a Qcow2 format is automatically generated in the Image field of the openstack console, and in the process,
when the command line is called, the uuid of the volume, the specification size fluor, the available domain availability-zone and the uuid of the network need to be specified, at this time, the command openstack image create represents that a new image file is created through the volume, and the implementation codes are as follows:
openstack image create\
--force--volume cd98f871-f741-4527-b3bd-23b888c46173\
dr-centos72-volume-convert-image
or when calling the API mode, adopting a POST request mode, and realizing the following codes:
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes/cd98f871-f741-4527-b3bd-23b 888c46173/action
the request mode comprises the following steps:
POST mode
A request body:
a returning body:
none.
(5) Separating and generating a volume with a Linux image file template by calling a command line or an API mode, starting another virtual machine by the volume, downloading the Linux image file template on the other virtual machine through a work image-download command, transmitting the Linux image file template to a user machine through an xftp file transmission tool, in the process,
(5.1) when calling the API mode, adopting a DELETE request mode to separately generate a volume with a Linux image file template, and realizing the following codes:
openstack server\
emove volume 385e187c-fa57-42f5-b48b-f3d9ed5be614\
7249e05a-7935-432c-9212-b6d60582e086
wherein the command openstack server remove volume represents the unloading of the virtual machine and volume connection.
URL:
http://*.*.*.*:8774/v2.1/servers/385e187c-fa57-42f5-b48b-f3d9ed5be614/os-volume_attachments/72 49e05a-7935-432c-9212-b6d60582e086
The request mode comprises the following steps:
ELETE mode
No request body and return body.
(5.2) in the process of starting another virtual machine in a volume starting mode, when a command line is called, the uuid of the volume, the specification size viewer, the available domain availability-zone and the uuid of the network are required to be specified, and the implementation codes are as follows:
openstack server create\
--volume cd98f871-f741-4527-b3bd-23b888c46173\
--flavor 47e2d941-5f5d-4027-812c-8610ee866fac\
--availability-zone cn-north-3a\
--network 04dd8b7b-02cb-4555-843a-06166bb7584f\
dr-centos72-system-new
or, when calling API mode, adopting POST request mode,
URL:
http://*.*.*.*:8774/v2.1/os-volumes_boot
the request mode comprises the following steps:
POST mode
A request body:
a returning body:
example two:
with reference to fig. 2, this embodiment provides a method for starting a virtual machine by using ISO for an OpenStack platform, where the implementation content of the method includes:
(1) and the Windows ISO optical disk file and the virtio driver file of the user are transmitted to the host machine through the xftp file transmission tool.
In the process of transmitting the Windows ISO disc file and the virtio drive file, an image type disk-format, a container type container-format, a public image-public, and a path file for uploading an image need to be specified, and the execution codes are as follows:
openstack image create\
--disk-format iso\
--container-format bare\
--public\
--file./virtio-win-0.1.171.iso virtio-win-0.1.171-iso\
#virtio-win-0.1.171-iso 88f08946-84be-453c-a4fe-dc7fc82e447b\
openstack image create\
--disk-format iso\
--container-format bare\
--public--file./windows_2012_R2_64Bit.iso windows_2012_R2_64Bit-iso\
#windows_2012_R2_64Bit-iso 25a253c3-7388-4cf5-bdec-f68e941e457f\
(2) and creating a blank Volume with the source of the ISO optical disk file in a Volume column of the OpenStack console by calling a command line or an API (application program interface) mode, and starting the virtual machine in a Volume starting mode. In the course of this process, the process,
(2.1) when the command line is called, the volume size, the available domain available-zone, the volume type and the bootable disk bootable need to be specified, and the specification size of the blank volume needs to be larger than that of the Linux ISO optical disk file.
The code implementation and feedback results are as follows:
or, when calling the API mode, a POST request mode is adopted, a blank volume is created with a Linux ISO disc file, and the code implementation is as follows:
(1)
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes
calling mode:
POST mode
A request body:
a returning body:
(2)
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes/7249e05a-7935-432c-9212-b6 d60582e086/action
calling mode:
POST mode
A request body:
a returning body:
none.
And (2.2) prompting the loading of the PCI equipment and the network equipment in the virtio driver file in the process of starting the virtual machine in the volume starting mode. When the command line is called, a nova boot command is used, an ISO file is required to be designated as a system disk image, a specification size navigator is required, a network nic uuid is designated, block and device respectively designate a virtual file and a volume file uuid, and the code is realized as follows:
or when calling the API mode, adopting a POST request mode and starting the virtual machine in a volume starting mode, wherein the code is realized as follows:
URL:
http://*.*.*.*:8774/v2.1/os-volumes_boot
calling mode:
POST mode
A request body:
a returning body:
(3) and logging in the started virtual machine, installing the user-defined plug-in according to the requirement by calling a command line or an API (application program interface), and closing the virtual machine after the installation is finished.
Subsequently, the virtual machine can be unloaded by calling a command line, at this time, the openstack server removevolume represents unloading the virtual machine and volume connection, and the code is implemented as follows:
openstack server\
emove volume 385e187c-fa57-42f5-b48b-f3d9ed5be614\
7249e05a-7935-432c-9212-b6d60582e086
an API mode and a POST request mode can be adopted, and the following codes are realized:
URL:
http://*.*.*.*:8774/v2.1/servers/385e187c-fa57-42f5-b48b-f3d9ed5be614/os-volume_attachments/72 49e05a-7935-432c-9212-b6d60582e086
the request mode comprises the following steps:
DELETE mode
No request body and return body.
Of course, this unloading process may not be performed.
(4) By calling a command line or an API mode, a Windows Image file template in a Raw format or a Qcow2 format is automatically generated in the Image field of the openstack console, and in the process,
when the command line is called, the uuid of the volume, the dimension navigator, the available domain availability-zone and the uuid of the network need to be specified, and the implementation codes are as follows:
openstack image create\
--volume 7249e05a-7935-432c-9212-b6d60582e086\
dr-windows2012-volume-convert-image
or when calling the API mode, adopting a POST request mode, and realizing the following codes:
URL:
http://*.*.*.*:8776/v2/9bff4086e23648fa8b2e70eb61e12dda/volumes/cd98f871-f741-4527-b3bd-23b 888c46173/action
the request mode comprises the following steps:
OST mode
A request body:
a returning body:
。
(5) separating and generating a volume with a Windows image file template by calling a command line or an API mode, starting another virtual machine by the volume, downloading the Windows image file template on the other virtual machine through a work image-download command, transmitting the Windows image file template to a user machine through an xftp file transmission tool, in the process,
(5.1) when calling API mode, adopting DELETE request mode, separating and generating the volume with Windows image file template, and realizing the following codes:
openstack server\
remove volume 385e187c-fa57-42f5-b48b-f3d9ed5be614\
7249e05a-7935-432c-9212-b6d60582e086
wherein the command openstack server remove volume represents the unloading of the virtual machine and volume connection.
URL:
http://*.*.*.*:8774/v2.1/servers/385e187c-fa57-42f5-b48b-f3d9ed5be614/os-volume_attachments/72 49e05a-7935-432c-9212-b6d60582e086
The request mode comprises the following steps:
DELETE mode
A requesting entity and a returning entity.
(5.2) in the process of starting another virtual machine in a volume starting mode, when a command line is called, the uuid of the volume, the specification size viewer, the available domain availability-zone and the uuid of the network are required to be specified, and the implementation codes are as follows:
openstack server create\
--network e563a946-7cda-45cd-a004-aeb9af3333b5\
--flavor a6740b4b-4a77-40de-b630-7cb40444051f\
--volume 7249e05a-7935-432c-9212-b6d60582e086\
dr-windows2012-system-new
or, when calling API mode, adopting POST request mode,
URL：
http://*.*.*.*:8774/v2.1/os-volumes_boot
the method comprises the following steps:
POST mode
A request body:
a returning body:
Claims (9)
1. a method for starting a virtual machine by utilizing ISO aiming at an OpenStack platform is characterized in that the implementation content of the method comprises the following steps:
(1) the user transmits the ISO optical disk file/ISO optical disk file and the drive file to the host machine through the file transmission tool;
(2) creating a blank Volume with the source of the ISO optical disk file in a Volume column of an OpenStack console by calling a command line or an API (application program interface) mode, and starting a virtual machine in a Volume starting mode;
(3) logging in the started virtual machine, installing the custom plug-in according to the requirement by calling a command line or an API mode, and closing the virtual machine after the installation is finished;
(4) automatically generating an Image file template in a Raw format or a Qcow2 format in an Image field of an openstack console by calling a command line or an API (application programming interface) mode;
(5) and separating and generating a volume with the image file template by calling a command line or an API (application program interface), starting another virtual machine by the volume, downloading the image file template on the other virtual machine through a wide image-download command, and transmitting the image file template to the user machine through a file transmission tool.
2. The method of claim 1, wherein a blank Volume originating from the ISO CD file is created in the Volume column of OpenStack console by calling command line or API method, and the virtual machine is started in Volume start mode, in the process,
(2.1) when calling the command line, needing to specify the volume size, the available domain available-zone, the volume type and the bootable disk bootable, or adopting a POST request mode to create a blank volume by using an ISO optical disk file when calling the API mode;
(2.2) when the command line is called, the uuid of the volume, the dimension of the specification, the available domain availability-zone and the uuid of the network are required to be specified, or when the API mode is called, the virtual machine is started in a volume starting mode by adopting a POST request mode.
3. The method for starting a virtual machine by using ISO for OpenStack platform according to claim 1, wherein step (3) is performed, and after the virtual machine is closed, the virtual machine can be unloaded by calling a command line.
4. The method for starting a virtual machine by using ISO for OpenStack platform according to claim 1, wherein in the process of automatically generating the image file template by calling a command line or API manner,
when the command line is called, uuid of volume, dimension or, available domain, and uuid of network need to be specified, or, when the API mode is called, a POST request mode is adopted to generate a mirror image file template.
5. The method for starting a virtual machine by utilizing ISO for OpenStack platform according to claim 1, wherein the volume with the image file template is generated separately by calling command line or API manner, and another virtual machine is started by the volume, in the process,
(5.1) when calling the API mode, adopting a DELETE request mode to separately generate a volume with the mirror image file template;
(5.2) when the command line is called, the uuid of the volume, the dimension of the specification, the available domain availability-zone and the uuid of the network are required to be specified, or when the API mode is called, a POST request mode is adopted, and another virtual machine is started in a volume starting mode.
6. The method for starting a virtual machine by using ISO for OpenStack platform according to any one of claims 1 to 5, wherein for Linux system, the ISO optical disk file is Linux ISO optical disk file, and the user transmits Linux ISO optical disk file to the host through an xftp file transmission tool.
7. Method for starting a virtual machine using ISO for OpenStack platform according to any of claims 1-5, wherein for Windows system, the ISO optical disk file is a Windows ISO optical disk file, and when,
the user transmits the Windows ISO optical disc file and virtio driver file to the host computer through the xftp file transfer tool,
and prompting to load the PCI equipment and the network equipment in the virtio drive file in the process of starting the virtual machine in a volume starting mode.
8. The method for starting a virtual machine by using ISO for an OpenStack platform according to any one of claims 1 to 5, wherein in a process that a user transmits an ISO/ISO disc file and a driver file to a host through a file transfer tool, an image type disk-format, a container type container-format, a public image-public, and a path file for uploading an image are required to be specified.
9. Method for starting a virtual machine by using ISO for OpenStack platform according to any of claims 1-5, wherein the size of the blank volume must be larger than the size of the ISO/ISO CD file and driver file.
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| US20130007726A1 (en) * | 2011-06-30 | 2013-01-03 | Indrajit Poddar | Virtual machine disk image installation |
| CN109033430A (en) * | 2018-08-13 | 2018-12-18 | 郑州云海信息技术有限公司 | A kind of virtual machine image file storage method and device |
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