# Master Node ### Master Node is responsible for overall management of cube cluster {% file src="/files/-Mg-\_RpG1Od8tPp-0--C" %} kubenetes-architecture.png {% endfile %} ## The Master Node contains * **API Sever** - frontend of Kube control pane, interacts with the Kube API * **Scheduler** - watches created pods and designs to run on a specific node * **Controller Manager** - controllers that runs tasks on a cluster ## There are four types of Controllers in Kubernetes 1. **Node Controller**: responsible for worker states 2. **Replication Controller**: maintains correct no. of pods for replicated controllers 3. **End-Point Controller**: joins services and pods together 4. **Service account/ Token Controller**: access mgmt. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://amdocs-1.gitbook.io/kubernetes-handbook/architecture/master-node.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.