#!/bin/bash
# Created by lanbitou 03.29.2023
ns=$1
name=$ns
user=$name
kubeconfig=$ns"-config"
# kubernetes master api server 地址, 需要替換掉
apiserver="https://123.456.789.ABC:6443"
cluster="cluster_name_"$ns
context=$cluster
name=$name ns=$ns envsubst < create-role-rolebinding.yaml | kubectl apply -f -
if [ $? != 0 ]
then
    echo "error, exit=1"
    exit 1
fi
token=$(kubectl -n $ns get secret $(kubectl -n $ns get secret | grep $user | awk '{print $1}') -o go-template='{{.data.token}}' | base64 -d)
echo $token
kubectl config set-credentials $user --token=$token --kubeconfig=$kubeconfig
kubectl config set-cluster $cluster --insecure-skip-tls-verify=true --server=$apiserver  --kubeconfig=$kubeconfig
kubectl config set-context $context --cluster=$cluster --user=$user --kubeconfig=$kubeconfig
kubectl config use-context $context --kubeconfig=$kubeconfig
echo $kubeconfig' is created in the current path.'

apiVersion: v1
kind: ServiceAccount
metadata:
  name: $name
  namespace: $ns
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  namespace: $ns
  name: $name
rules:
- apiGroups: ["", "extensions", "apps"]
  #resources: ["pods", "services", "configmaps", "secrets","deployments","replicasets","statefulsets","daemonsets","pods/log","pods/exec","namespaces"]
  resources: ["*"]
  verbs: ["*"]
- apiGroups: ["batch"]
  resources: ["jobs","cronjobs"]
  verbs: ["*"]
- apiGroups: ["apiextensions.k8s.io"]
  resources: ["customresourcedefinitions"]
  verbs: ["*"]
# 如果發(fā)現(xiàn)生成的kubeconfig權限不足，可以根據(jù)提示，在這里添加對應的rule
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: $name
  namespace: $ns
subjects:
- kind: ServiceAccount
  name: $name
  namespace: $ns
roleRef:
  kind: Role
  name: $name
  apiGroup: rbac.authorization.k8s.io

$ bash create_kubeconfig.sh zhangsan
$ bash create_kubeconfig.sh lisi
$ bash create_kubeconfig.sh wangwu

$ kubectl -n zhangsan --kube-config=zhangsan-config get all