Component Overview

A component is a service feature implementation of an application. It is carried by code or software packages and can be independently deployed and run.

After creating an application on ServiceStage, you can add components to the application. A maximum of 1000 components can be created for an application.

You can set the component technology stack and component source based on service requirements to create and deploy components.

Technology Stack

A technology stack includes the operating system, framework, and runtime on which component running depends. It consists of attributes such as the stack name, type, status, and version. The version number complies with the semantic versioning specifications.

ServiceStage provides and manages the stack lifecycle. You only need to focus on service development to improve application hosting experience.

The lifecycle phases of the technology stack are defined as follows:

Preview: The beta version is released.
General Availability (GA): The official version is released.
End of Life (EOL): The lifecycle ends.

The technology stack status is defined as follows:

Preview: The stack is in the Preview phase.
Supported: The stack is in the GA phase.
Deprecated: The stack is in the GA phase but the EOL announcement has been released, or the stack is not recommended by ServiceStage.

For details about the technology stack, see Table 1.

Table 1 Technology stack information
Technology Stack	Type	Status	Release Description	Component Source and Deployment Mode
OpenJDK8	Java	Supported	OpenJDK-8u312b07: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or JAR package, and container-based deployment is supported. For details, see Component Deployment Modes.
Tomcat8/OpenJDK8	Tomcat	Supported	OpenJDK-8u312b07: Release Note Tomcat-8.5.75: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or WAR package, and container-based deployment is supported. For details, see Component Deployment Modes.
Tomcat9/OpenJDK8	Tomcat	Supported	OpenJDK-8u312b07: Release Note Tomcat-9.0.58: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or WAR package, and container-based deployment is supported. For details, see Component Deployment Modes.
Node.js8	Node.js	Supported	Nodejs-v8.11.3: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or ZIP package, and container-based deployment is supported. For details, see Component Deployment Modes.
Node.js14	Node.js	Supported	Nodejs-v14.18.1: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or ZIP package, and container-based deployment is supported. For details, see Component Deployment Modes.
Node.js16	Node.js	Supported	Nodejs-v16.13.0: Release Note Image OS: EulerOS 2.9.8	The component source can be source code or ZIP package, and container-based deployment is supported. For details, see Component Deployment Modes.
Docker	Docker	-	Supported by CCE.	The component source is image package, and container-based deployment is supported. For details, see Component Deployment Modes.
Python3	Python	-	-	The component source can be source code or ZIP package, and container-based deployment is supported. For details, see Component Deployment Modes.
Php7	Php	-	-	The component source can be ZIP package, and container-based deployment is supported. For details, see Component Deployment Modes.

Component Source

Component Source	Description
Source Code Repository	Create authorization by referring to Authorizing a Repository and set the code source.
JAR package	The following upload modes are supported: Select the corresponding software package from the SWR software repository. Upload the software package to the software repository in advance. For details, see Uploading a Software Package. Select the corresponding software package from OBS. Upload the software package to the OBS bucket in advance. For details, see Uploading a File.
WAR package	The following upload modes are supported: Select the corresponding software package from the SWR software repository. Upload the software package to the software repository in advance. For details, see Uploading a Software Package. Select the corresponding software package from OBS. Upload the software package to the OBS bucket in advance. For details, see Uploading a File.
ZIP package	The following upload modes are supported: Select the corresponding software package from the SWR software repository. Upload the software package to the software repository in advance. For details, see Uploading a Software Package. Select the corresponding software package from OBS. Upload the software package to the OBS bucket in advance. For details, see Uploading a File.
Image package	Containerized applications need to be created based on images. Option: . Upload the image to the image repository in advance. For details, see Uploading an Image.

Component Deployment Modes

Deployment Mode	Description
Container-based deployment	Cloud Container Engine (CCE) deployment: CCE is a highly scalable, enterprise-class hosted Kubernetes service for you to run containers and applications. With CCE, you can easily deploy, manage, and scale containerized applications on the cloud platform.

Parent topic: Component Management

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Creating and Deploying a Component

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