---
reviewers:
- mikedanese
- luxas
- jbeda
title: kubeadm config
content_template: templates/concept
weight: 50
---
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Beginning with v1.8.0, kubeadm uploads the configuration of your cluster to a ConfigMap called
`kubeadm-config` in the `kube-system` namespace, and later reads the ConfigMap when upgrading.
This enables correct configuration of system components, and provides a seamless user experience.

You can execute `kubeadm config view` to view the ConfigMap. If you initialized your cluster using
kubeadm v1.7.x or lower, you must use `kubeadm config upload` to create the ConfigMap before you
may use `kubeadm upgrade`.

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## kubeadm config upload from-file {#cmd-config-from-file}
{{< include "generated/kubeadm_config_upload_from-file.md" >}}

## kubeadm config upload from-flags {#cmd-config-from-flags}
{{< include "generated/kubeadm_config_upload_from-flags.md" >}}

## kubeadm config view {#cmd-config-view}
{{< include "generated/kubeadm_config_view.md" >}}
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* [kubeadm upgrade](/docs/reference/setup-tools/kubeadm/kubeadm-upgrade/) to upgrade a Kubernetes cluster to a newer version
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