Shulou(Shulou.com)06/02 Report--

One: brief introduction

When using the kubectl command line, you first need to configure the Kubeconfig file, which is used to configure how to access Kubernetes API, including Kubernetes API Server URL and authentication information, and you can set different contexts to quickly switch access environments.

Two: example of Kubeconfig file

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ApiVersion: v1

Kind: Config

Clusters:

-cluster:

Certificate-authority: / etc/kubernetes/ca.crt

Server: https://kube-master:6443

Name: k8s

Users:

-name: admin

User:

-- client-certificate=/etc/kubernetes/ssl/admin.pem

-- embed-certs=true

-- client-key=/etc/kubernetes/ssl/admin-key.pem

Contexts:

-context:

Cluster: k8s

User: admin

Namespace: default

Name: default

Current-context: default

Preferences: {} 1.cluster: set the access URL and related properties of kubernetes api server

2.users: sets authentication information for accessing Kubernetes API Server

3.contexts: setting the kubelet execution context

4.current-context: sets the current context of kubelet execution

5.perferences: setting other properties of kubelet

Three: Kubectl config command

The Kubeconfig file can be edited manually or queried and set up through the kubectl config command.

1.kubectl config view: viewing Kubeconfig fil

2.kubectl config set-cluster: set the clusters of kubeconfig

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Kubectl config set-cluster kubernetes\

-- certificate-authority=/etc/kubernetes/ssl/ca.pem\

-- embed-certs=true\

-- server=$ {KUBE_APISERVER} 3.kubectl config set-credentials: sets the users of kubeconfig

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Kubectl config set-credentials admin\

-- client-certificate=/etc/kubernetes/ssl/admin.pem\

-- embed-certs=true\

-- client-key=/etc/kubernetes/ssl/admin-key.pem4.kubectl config set-context: sets the contexts of Kubeconfig

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Kubectl config set-context kubernetes\

-- cluster=kubernetes\

-- user=admin5.kubectl config use-context: sets the current-context of Kubeconfig

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Kubectl config use-context kubernetes

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