Kubernetes 配置

我們在這裡可以配置 k8s 叢集引數。

上游繫結到 k8s 服務，以及叢集閘道器繫結 k8s，都需要先在這裡進行配置。

下面我們來配置一個 k8s 叢集。

首先點選 Add Kubernetes Cluster 按鈕。

給 k8s 叢集起個名字。填寫好 k8s 叢集的主機名和埠資訊，以及是否驗證，和 token 後點選建立。

k8s 叢集配置建立成功。

我們連線 k8s 需要以下許可權：

1. namespace 的讀取許可權：get, list, watch
2. service 的讀取許可權：get, list, watch
3. endpoint 的讀取許可權：get, list, watch
4. pod 的讀取許可權：get, list, watch

k8s 使用 token 來鑑權並獲取許可權，下面我們介紹如何得到一個擁有以上 k8s 許可權的 token。

建立 token.yaml 檔案

apiVersion: v1
kind: ServiceAccount
metadata:
  name: openresty-edge-serviceaccount
  namespace: default

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: openresty-edge-clusterrole
rules:
  - apiGroups:
      - ""
    resources:
      - namespaces
      - services
      - endpoints
      - pods
    verbs:
      - get
      - list
      - watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: openresty-edge-clusterrole-binding
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: openresty-edge-clusterrole
subjects:
  - kind: ServiceAccount
    name: openresty-edge-serviceaccount
    namespace: default

執行以下命令獲取 token

$ kubectl apply -f token.yml
$ kubectl describe secret $(kubectl get secret | grep openresty-edge-serviceaccount | awk '{print $1}') | grep "token: " | awk '{print $2}'
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