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On this page you find all important commands for the CLI tool kubeadm. If the command you are looking for is missing please ask our AI.

kubeadm

Kubeadm is a command-line tool used for quick and easy Kubernetes cluster setup and configuration. It is part of the official Kubernetes project and is designed to simplify the cluster bootstrapping process.

  1. Kubeadm helps in initializing a new Kubernetes cluster by providing a step-by-step process for setting up the control plane.
  2. It automates the tasks related to setting up the necessary certificates and key pairs for secure communication within the cluster.
  3. Kubeadm can be used to join worker nodes to an existing cluster, making it easy to scale the cluster by adding more nodes.
  4. It supports multiple configuration options, allowing users to customize their cluster setup according to their requirements.
  5. Kubeadm utilizes well-defined and stable APIs, ensuring compatibility across different Kubernetes versions and distributions.
  6. It helps in implementing best practices for Kubernetes cluster setup and follows recommendations from the Kubernetes community.
  7. Kubeadm simplifies the process of integrating with external networking plugins and container runtimes.
  8. It provides useful debugging and self-diagnosis capabilities to troubleshoot common cluster setup issues.
  9. Kubeadm enables users to easily upgrade their clusters to newer Kubernetes versions by providing simple upgrade commands.
  10. It is a widely adopted and well-maintained tool, actively supported by the Kubernetes community, making it a reliable choice for cluster provisioning.

List of commands for kubeadm:

  • kubeadm:tldr:3aa9e kubeadm: Bootstrap a Kubernetes worker node and join it to a cluster.
    $ kubeadm join --token ${token}
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  • kubeadm:tldr:3c474 kubeadm: Create a new bootstrap token with a TTL of 12 hours.
    $ kubeadm token create --ttl ${12h0m0s}
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  • kubeadm:tldr:6e373 kubeadm: Create a Kubernetes master node.
    $ kubeadm init
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  • kubeadm:tldr:6f457 kubeadm: Revert changes made to the host by 'kubeadm init' or 'kubeadm join'.
    $ kubeadm reset
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  • kubeadm:tldr:cd3b5 kubeadm: Check if the Kubernetes cluster is upgradeable and which versions are available.
    $ kubeadm upgrade plan
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  • kubeadm:tldr:d01cb kubeadm: View the kubeadm ConfigMap containing the cluster's configuration.
    $ kubeadm config view
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  • kubeadm:tldr:e8ac9 kubeadm: Upgrade Kubernetes cluster to a specified version.
    $ kubeadm upgrade apply ${version}
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tool overview