The AKE package manager (Package Manager) is the agent (AKE Agent) of the AKE cluster addon manager in the AKE management cluster and workload clusters. It is responsible for installing the package specified by Addon CR into the workload cluster. The AKE package manager uses the open-source project kapp-controller for package management. kapp-controller defines CRDs such as PackageInstall/Package/PackageRepository/App to manage packages packaged as container images. Addon CR encapsulates PackageInstall and Package. After an Addon CR is created in the management cluster, Addon Controller creates a PackageInstall CR in the workload cluster specified by Addon CR based on the package information and configuration parameters specified in Addon CR. The kapp-controller in the workload cluster reconciles this PackageInstall CR, generates YAML manifests based on the templates and configuration parameters defined in the specified Package CR, and applies them to the workload cluster.