Download Liberty Feature Repository: A Guide for Developers
If you are a developer who wants to use the lightweight and production-ready WebSphere Liberty runtime environment, you might be interested in downloading and installing the Liberty Feature Repository. The Liberty Feature Repository is an online mechanism that delivers Liberty and additional content, such as features, samples, and open source integrations. In this article, we will explain what the Liberty Feature Repository is, why you should use it, how to access it, and how to use it.
What is Liberty Feature Repository?
The Liberty Feature Repository is a collection of assets that are available for download and installation on your Liberty server. These assets include:
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Products: The core Liberty runtime environment and additional editions, such as WebSphere Application Server Liberty Core, WebSphere Application Server, and WebSphere Application Server Network Deployment.
Features: The units of functionality that you can add to your Liberty server to enable specific capabilities, such as servlets, web services, security, batch processing, and microservices.
Addons: The optional components that enhance your Liberty server with additional functionality, such as administration center, collective controller, and web cache monitor.
Config snippets: The XML files that provide predefined configuration elements for your server.xml file, such as data sources, logging, SSL, and monitoring.
Open source integrations: The third-party frameworks and libraries that are integrated with Liberty, such as Spring Boot, MicroProfile, Jakarta EE, and Apache CXF.
Tools: The development tools that help you create, test, debug, and deploy applications on Liberty, such as WebSphere Developer Tools for Eclipse, Maven plugin, Gradle plugin, and Docker images.
Benefits of using Liberty Feature Repository
By using the Liberty Feature Repository, you can enjoy the following benefits:
You can access the latest and supported content for Liberty as soon as they are delivered, rather than waiting for a new release.
You can customize your Liberty server with only the features and addons that you need, reducing the size and complexity of your server.
You can easily integrate your Liberty server with open source frameworks and libraries that are compatible with Liberty.
You can quickly access configuration and administration resources for your Liberty server without searching for them manually.
You can use various tools and methods to download and install assets from the Liberty Feature Repository according to your preference and scenario.
How to access Liberty Feature Repository
There are multiple ways to download and install assets from the Liberty Feature Repository. You can choose the method that suits your needs and environment. Here are some of the common methods:
Installing from the ZIP file
If you want to install the Liberty runtime environment from a stand-alone ZIP file that you unzip, you can follow these steps:
Download one of the WebSphere Liberty v23.0.0.4 packages from .
Unzip the package to a directory of your choice.
Installing using Maven, Gradle, or Docker
If you are using Maven, Gradle, or Docker to manage your dependencies and build your images, you can use them to install the Liberty runtime environment as well. For example:
If you are using Maven, you can add this dependency to your pom.xml file:<dependency> <groupId>com.ibm.websphere.appserver.runtime</groupId> <artifactId>wlp-kernel</artifact id>wlp-kernel</artifactId> <version>23.0.0.4</version></dependency>You can also use the to install additional features and addons.
If you are using Gradle, you can add this dependency to your build.gradle file:dependencies libertyRuntime group: 'com.ibm.websphere.appserver.runtime', name: 'wlp-kernel', version: '23.0.0.4'You can also use the to install additional features and addons.
If you are using Docker, you can use the .
Installing from within Eclipse
If you are using Eclipse as your integrated development environment (IDE), you can use the to install the Liberty runtime environment and additional assets from the Liberty Feature Repository. You can follow these steps:
Install the WebSphere Developer Tools for Eclipse from the Eclipse Marketplace or from the IBM Installation Manager.
Create a new Liberty server in Eclipse by right-clicking on the Servers view and selecting New > Server.
Select WebSphere Application Server Liberty and click Next.
Select Install from an archive or a repository and click Next.
Select a product, such as WebSphere Application Server Liberty Core, and click Next.
Select the features and addons that you want to install and click Next.
Review the license agreement and accept it if you agree.
Specify a destination folder for your Liberty installation and click Finish.
Installing additional features
If you want to install additional features after you have installed the Liberty runtime environment, you can use the installUtility command-line tool that is included in your Liberty installation. For example, to install the webProfile-8.0 feature, you can run this command:bin/installUtility install webProfile-8.0You can also use the --viewSettings option to see what features are available for installation. For more information about the installUtility tool, see .
How to use Liberty Feature Repository
After you have installed the assets from the Liberty Feature Repository, you can use them to configure and run your Liberty server and applications. Here are some of the common tasks that you can perform:
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Finding and installing assets
If you want to find out what assets are available for your Liberty server, you can use the featureManager command-line tool that is included in your Liberty installation. For example, to list all the features that are available for your server, you can run this command:bin/featureManager featureList --viewtype=available --productID=wlp --acceptLicenseYou can also use the --viewtype=installed option to see what features are already installed on your server. To install a feature, you can use the --action=install option. For more information about the featureManager tool, see .
Uninstalling assets
If you want to uninstall an asset that you have installed from the Liberty Feature Repository, you can use the --action=uninstall option with the installUtility or featureManager tools. For example, to uninstall the webProfile-8.0 feature, you can run this command:bin/installUtility uninstall webProfile-8.0You can also use the --viewtype=installed option to see what assets are installed on your server. For more information about uninstalling assets, see .
Generating a feature list
If you want to generate a list of features that are required by your applications or server configuration, you can use the --action=generateFeatureList option with the installUtility tool. For example, to generate a feature list for your server.xml file, you can run this command:bin/installUtility generateFeatureList server.xmlThis will create a file called featurelist.txt in your current directory, which contains the names of the features that are needed by your server configuration. You can use this file to install the features using the --from= option. For more information about generating a feature list, see .
Generating a classpath JAR file
If you want to generate a JAR file that contains the classpath entries for your Liberty server, you can use the --action=generateClasspathJar option with the installUtility tool. For example, to generate a classpath JAR file for your defaultServer, you can run this command:bin/installUtility generateClasspathJar defaultServerThis will create a file called wlp-classpath.jar in your current directory, which contains the classpath entries for your server. You can use this file to run your applications on Liberty using the -cp or -classpath options. For more information about generating a classpath JAR file, see .
Conclusion
In this article, we have introduced the Liberty Feature Repository, a convenient and flexible way to download and install assets for your Liberty server. We have also shown you how to access and use the Liberty Feature Repository using various tools and methods. We hope that this article has helped you understand and appreciate the benefits of using the Liberty Feature Repository for your development and deployment needs.
FAQs
What is the difference between Liberty and WebSphere Application Server?Liberty is a lightweight and modular application server that runs on Java SE and supports Java EE, MicroProfile, Jakarta EE, and other open source technologies. WebSphere Application Server is a full-featured application server that runs on Java EE and supports various enterprise capabilities, such as clustering, high availability, security, and administration.
How do I update my Liberty server to the latest version?You can use the --action=update option with the installUtility tool to update your Liberty server to the latest version. For example, to update your defaultServer to version 23.0.0.4, you can run this command:bin/installUtility update defaultServer --to=23.0.0.4
How do I check the compatibility of my applications with Liberty?You can use the to scan your application binaries and check their compatibility with Liberty. The toolkit will generate a report that identifies any potential issues or changes that are required for your applications to run on Liberty.
How do I troubleshoot my Liberty server?You can use the to analyze your Liberty log files and identify any errors or warnings that are related to your server or applications. The analyzer will provide suggestions and links to documentation that can help you resolve the issues.
How do I get support for my Liberty server?You can get support for your Liberty server from various sources, such as:
The , which provides comprehensive information and guidance on how to use Liberty.
The , which allow you to ask questions and get answers from other Liberty users and experts.
The , which allows you to open tickets and get assistance from IBM support engineers.
The , which allows you to report issues and contribute code to Liberty.
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