kubernetes - 无法将本地 docker 图像与 docker desktop kubernetes 一起使用

Question

我有这个 kubernetes yaml 文件

apiVersion: v1
kind: Service
metadata:
  name: incremental-api-load-balancer
spec:
  selector:
    app: incremental-api
    tier: api
  ports:
  - protocol: "TCP"
    port: 80
    targetPort: 80
  type: LoadBalancer
---
apiVersion: v1
kind: Service
metadata:
  name: incremental-external-api-service
spec:
  selector:
    app: incremental-external-api
    tier: sidecar
  ports:
  - protocol: "TCP"
    port: 80
    targetPort: 80
  type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: incremental-api-deployment
spec:
  selector:
    matchLabels:
      app: incremental-api
      tier: api
      track: stable
  replicas: 3
  template:
    metadata:
      labels:
        app: incremental-api
        tier: api
        track: stable
    spec:
      containers:
      - name: incremental-flask-app
        image: incremental-flask
        imagePullPolicy: Never
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: incremental-external-api-deployment
spec:
  selector:
    matchLabels:
      app: incremental-external-api
      tier: sidecar
      track: stable
  replicas: 1
  template:
    metadata:
      labels:
        app: incremental-external-api
        tier: sidecar
        track: stable
    spec:
      containers:
      - name: incremental-external-api
        image: incremental-external-api
        imagePullPolicy: Never

当我这样做

docker images ls

我明白了

REPOSITORY                                  TAG                                        IMAGE ID            CREATED             SIZE
incremental-flask                             latest                                     8bbc4c45efdf        2 minutes ago       1.21GB
incremental-external-api                        latest                                     532203259006        3 minutes ago       1.2GB

从查看这个答案 - Docker for Mac(Edge) - Kubernetes - reference local image

我应该拉取本地镜像。

但是，我在运行时得到了这个

kubectl get pods

incremental-api-deployment-98b5d7c95-bmqbf         0/1       ErrImageNeverPull   0          1m
incremental-api-deployment-98b5d7c95-tktqv         0/1       ErrImageNeverPull   0          1m
incremental-api-deployment-98b5d7c95-xcwk2         0/1       ErrImageNeverPull   0          1m
incremental-external-api-service-deployment-b9dddff77-6z4p9   0/1       ErrImageNeverPull   0          1m

我正在使用 Docker Desktop 运行一个本地集群，我想拉取本地镜像。

为什么会出现这个错误？

Answer 1

--image-pull-policy=Never

使用“latest”标签将始终强制拉取，因为 imagePullPolicy:always 的值，它会寻找要拉取的远程仓库。

当你添加 'Never' 选项时，将使用本地 repo