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Table of Contents
1. Install and configure Kubernetes components
2. Manage and maintain Kubernetes clusters
3. Monitor and manage cluster status
Home Backend Development Golang How to manage Kubernetes nodes on Debian

How to manage Kubernetes nodes on Debian

May 16, 2025 pm 01:18 PM
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Managing Kubernetes (K8S) nodes on Debian systems usually involves the following key steps:

1. Install and configure Kubernetes components

  • Preparation : Make sure that all nodes (including master and worker nodes) have Debian operating systems installed and meet the basic requirements for installing Kubernetes clusters, such as sufficient CPU, memory and disk space.
  • Disable swap partition : In order to ensure that kubelet can run smoothly, it is recommended to disable swap partition.
  • Set firewall rules : allow necessary ports, such as ports used by kubelet, kube-apiserver, kube-scheduler, etc.
  • Install containerd runtime : containerd is an industry-standard container runtime supported by Kubernetes and needs to be installed on all nodes.
  • Configure Kubernetes apt repository : Configure Kubernetes' apt repository to speed up the installation process.
  • Install Kubernetes cluster using kubeadm : Initialize the master node and add the worker node to the cluster.
  • Configure Pod Network : Set up the Pod Network to allow communication between nodes.

2. Manage and maintain Kubernetes clusters

  • Node Tag Management : Use node tags to ensure that workloads are allocated to nodes with the necessary hardware capabilities.
  • Set resource limits : Set reasonable resource requests and limits for Pods, especially for GPU resources management.
  • GPU Resource Management : The key to managing GPUs in Kubernetes is to make sure they are constantly busy but overloaded, and to make sure that the applications that need them the most can use the GPU.
  • Use management tools : For example, the k0rdent launched by Mirantis is an open source Kubernetes management platform designed to simplify the task of managing Kubernetes clusters.

3. Monitor and manage cluster status

  • Use kubectl command line tool : kubectl is the default command line tool of Kubernetes, which can be used to obtain cluster status information.
  • Using Prometheus and Grafana : Prometheus is an open source monitoring and alerting toolkit designed for dynamic cloud native environments such as Kubernetes. By deploying Prometheus operator or Helm chart, you can integrate Prometheus in a Kubernetes cluster and then use Grafana to visualize this data.
  • Using Kubernetes Dashboard : Kubernetes Dashboard is a web-based UI tool that provides intuitive access to Kubernetes clusters.
  • Using cAdvisor : cAdvisor (Container Advisor) is an open source tool that monitors the resource usage and performance metrics of containers.
  • Using K9s : K9s is a terminal-based full-screen UI management tool that can interact with Kubernetes clusters.

Please note that the above information provides general guidance on managing K8S clusters on Debian, and specific operations may vary with updates to Kubernetes versions and changes to the Debian operating system. It is recommended to refer to the latest official documents and guidelines.

How to manage Kubernetes nodes on Debian

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