kubectl proxy

一种直接访问kubernetes API的方法。

首先通过kubectl获取到API的URL， 例如

vagrant@k8s-master:~$ kubectl get namespaces  -v 6
I0612 21:17:08.143200   65940 loader.go:372] Config loaded from file:  /home/vagrant/.kube/config
I0612 21:17:08.174927   65940 round_trippers.go:553] GET https://192.168.56.10:6443/api/v1/namespaces?limit=500 200 OK in 18 milliseconds
NAME              STATUS   AGE
default           Active   12d
kube-node-lease   Active   12d
kube-public       Active   12d
kube-system       Active   12d

后台执行 kubectl proxy &

vagrant@k8s-master:~$ kubectl proxy &
[1] 66087
vagrant@k8s-master:~$ Starting to serve on 127.0.0.1:8001

vagrant@k8s-master:~$

这时候就可以通过proxy来访问API了，例如

vagrant@k8s-master:~$ curl http://127.0.0.1:8001/api/v1/namespaces?limit=500
{
"kind": "NamespaceList",
"apiVersion": "v1",
"metadata": {
    "resourceVersion": "352131"
},
"items": [
    {
    "metadata": {
        "name": "default",
        "uid": "9c661b71-38ad-4cdc-b505-0889e88bdb4b",
        "resourceVersion": "197",
        "creationTimestamp": "2022-05-31T18:13:08Z",
        "labels": {
        "kubernetes.io/metadata.name": "default"
        },

如何退出proxy？ 运行fg，然后运行ctrl + c

vagrant@k8s-master:~$ fg
kubectl proxy

^C
vagrant@k8s-master:~$