InvalidApplicationUID

当工作负载以用户 ID (UID) `1337` 运行时，会出现此消息。应用程序 Pod 不应该以用户 ID (UID) `1337` 运行，因为 istio-proxy 容器以 UID `1337` 运行。使用相同的 UID 运行应用程序容器会导致与其 `iptables` 配置冲突。

一个例子

考虑使用在 Pod 级别或容器级别使用 UID `1337` 运行 `securityContext.runAsUser` 的 `Deployment`

apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-con-sec-uid
  labels:
    app: helloworld
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: helloworld
      version: v1
  template:
    metadata:
      labels:
        app: helloworld
        version: v1
    spec:
      securityContext:
        runAsUser: 1337
      containers:
      - name: helloworld
        image: docker.io/istio/examples-helloworld-v1
        securityContext:
          runAsUser: 1337
        resources:
          requests:
            cpu: "100m"
        imagePullPolicy: IfNotPresent #Always
        ports:
        - containerPort: 5000

如何解决

由于用户 ID (UID) `1337` 为边车代理保留，因此您可以使用不同的用户 ID (UID)，例如 `1338`，作为您的工作负载。

apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-con-sec-uid
  labels:
    app: helloworld
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: helloworld
      version: v1
  template:
    metadata:
      labels:
        app: helloworld
        version: v1
    spec:
      securityContext:
        runAsUser: 1338
      containers:
      - name: helloworld
        image: docker.io/istio/examples-helloworld-v1
        securityContext:
          runAsUser: 1338
        resources:
          requests:
            cpu: "100m"
        imagePullPolicy: IfNotPresent #Always
        ports:
        - containerPort: 5000