所以，就像您所说的，我创建了另一个pod，它的类型是：JOB，并包含了script.sh。

在script.sh文件中，我对主pod运行“kubectl exec”以运行几个命令

该脚本被执行，但我收到错误“Cannot Create resource”pods/exec in API group“

因此，我创建了一个具有资源[“pods/exec”]的集群角色，并使用ClusterRoleBinding将其绑定到默认服务帐户

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: pod-reader
rules:
- apiGroups: [""]
  resources: ["pods", "pods/log"]
  verbs: ["get", "list"]
- apiGroups: [""]
  resources: ["pods/exec"]
  verbs: ["create"]

--- 

kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: service-account-role-binding
  namespace: default
subjects:
  - kind: ServiceAccount
    name: default
    namespace: default
roleRef:
  kind: ClusterRole
  name: pod-reader
  apiGroup: rbac.authorization.k8s.io

---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: default
  namespace: default

In the pod which is of kind:job, I include the service account like shown below

restartPolicy: Never
serviceAccountName: default

but I still get the same error. What am I doing wrong here ?

Error from server (Forbidden): pods "mongo-0" is forbidden: User "system:serviceaccount:default:default" cannot create resource "pods/exec" in API group "" in the namespace "default"