InvalidApplicationUID

当工作负载以 User ID (UID) 1337 运行时，会出现此消息。应用程序的 Pod 不应该以 User ID (UID) 1337 运行，因为 istio-proxy 容器默认以 UID 1337 运行。当使用相同的 UID 运行您的容器应用时，将导致它的 iptables 配置冲突。

例如

探讨 Deployment 和 securityContext.runAsUser 使用 UID 1337 在 Pod 级别或容器级别运行：

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

解决办法

由于 User ID (UID) 1337 是为 Sidecar 代理保留的，所以您可以为您的工作负载使用除了 1337 以外的 User ID (UID)，例如 1338 。

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