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Images

Updated at: Dec 14, 2019 GMT+08:00

Introduction

Image Management Service (IMS) allows you to create ECSs using images. An image is an ECS template that contains an OS and may also contain proprietary software and application software, such as database software.

Images can be public, private, or shared. Public images are provided by the system by default, private images are manually created, and shared images are private images that are shared by another user. You can use any type of image to create an ECS. You can also create a private image using an existing ECS. This provides you with a simple way to create ECSs that comply with your service requirements. For example, if you use web services, your image can contain a web server, static configurations, and dynamic page code. After you use this image to create an ECS, the web server will run.

Image Types

Table 1 Image types

Image Type

Description

Public image

A standard, widely used image. It contains an OS and preinstalled public applications and is available to all users.

For details about the OSs supported by public images, see OSs Supported by ECSs.

Private image

An image that is available only to the user who created it based on an ECS or EVS backup (system disk backup). Such a private image contains an OS, preinstalled public applications, and the user's private applications.

Shared image

A private image shared by another user.

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