It is also possible to include plugins directly with your Docker images. The process to do that is similar to the one of the Blueprint extensions, but more lightweight.

Next to workspace-configuration/extensions is a plugins directory where you can configure the plugins you want to bundle as a list of descriptor-urls. By executing Maven in this directory, the plugin-descriptors are parsed and the urls to the distinct application-plugins are put into plugins.json files inside the application workspaces. Then, when building an application, these plugin-zips will be downloaded and added to the Docker image. For details, please see the README.md in the workspace-configuration/plugins directory.

The RSS-Adapter from the example in Section 4.1.6.3.2, “Plugin Releases” is one of the plugins that come already bundled with the Blueprint. So you will find a reference to the descriptor in workspace-configuration/plugins/plugin-descriptors.json, and references to the zip files in apps/studio-server/blueprint/spring-boot/studio-server-app/plugins.json and apps/studio-client/apps/main/app/plugins.json