将多个k8s集群在同一台主机上使用kubectl进行管理

kubectl use-context配置多集群访问，控制多个k8s集群

apiVersion: v1
clusters:
- cluster:certificate-authority-data: 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server: https://master.k8s.bin.ag-test:31316name: kubernetes
contexts:
- context:cluster: kubernetesuser: kubernetes-adminname: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-adminuser:client-certificate-data: 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client-key-data: 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

不难看出
一下是三个租
clusters
users
contexts
三个集合
我们使用的kubectl config use-context + 上下文名称来切换时用都的列表就是来自于contexts集合，contexts集合内的分别对应了users、contexts两个集合的名称
注意事项：如果你的集群使用了域名访问，请在hosts中添加域名解析

apiVersion: v1
clusters:
- cluster:certificate-authority-data: ********内容==server: https://master.k8s.bin.ag-test:31316name: kubernetes
contexts:
- context:cluster: kubernetesuser: kubernetes-adminname: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-adminuser:client-certificate-data: ********内容==client-key-data: ********内容=

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