带有 React 应用程序的 pod 在 kubernetes 上失败，状态为 CrashLoopBackOff

Question

我是 kubernetes 的新手。我是运行我的 Docker 桌面虚拟机中的 kubernetes 集群。以下是版本

Docker 桌面社区：2.3.0.4（稳定）
引擎：19.03.12
库伯内特斯：1.16.5

我创建了一个简单的 React 应用程序。下面是 Docker 文件。

FROM node:13.12.0-alpine    

WORKDIR /app
ENV PATH /app/node_modules/.bin:$PATH


COPY package*.json ./    
RUN npm install  

# add app files
COPY . ./     

# start app
CMD ["npm", "start"]

我构建了一个 docker 图像并运行它。它工作正常。我在下面添加了图片 deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-deployment
  labels:
    app: test-react-app
  namespace: dev
spec:
  replicas: 1
  selector:
    matchLabels:
      app: test-react-app
  template:
    metadata:
      labels:
        app: test-react-app
    spec:
      containers:
        - name: test-react
          image: myrepo/test-react:v2
          imagePullPolicy: Never
          ports:
            - containerPort: 80


---
kind: Service
apiVersion: v1
metadata:
  name: test-service
  namespace: dev
spec:
  type: NodePort
  ports:
    - port: 80
      targetPort: 80
      protocol: TCP
      nodePort: 31000
  selector:
    app: test-react-app

pod 永远不会启动。以下是 describe.

中的事件

Type     Reason     Age                  From                     Message
  ----     ------     ----                 ----                     -------
  Normal   Scheduled  <unknown>            default-scheduler        Successfully assigned dev/test-deployment-7766949554-m2fbz to docker-desktop
  Normal   Pulled     8m38s (x5 over 10m)  kubelet, docker-desktop  Container image "myrepo/test-react:v2" already present on machine
  Normal   Created    8m38s (x5 over 10m)  kubelet, docker-desktop  Created container test-react
  Normal   Started    8m38s (x5 over 10m)  kubelet, docker-desktop  Started container test-react
  Warning  BackOff    26s (x44 over 10m)   kubelet, docker-desktop  Back-off restarting failed container

以下是来自容器的日志。看起来容器是运行..

> react-cart@0.1.0 start /app
> react-scripts start

[34mℹ[39m [90m｢wds｣[39m: Project is running at http://10.1.0.33/
[34mℹ[39m [90m｢wds｣[39m: webpack output is served from
[34mℹ[39m [90m｢wds｣[39m: Content not from webpack is served from /app/public
[34mℹ[39m [90m｢wds｣[39m: 404s will fallback to /
Starting the development server...

Answer 1

成功了！！！

我将 React 应用程序构建到生产应用程序中，然后复制了 docker 文件。我遵循了这个 link https://dev.to/rieckpil/deploy-a-react-application-to-kubernetes-in-5-easy-steps-516j.

中给出的技术

带有 React 应用程序的 pod 在 kubernetes 上失败，状态为 CrashLoopBackOff

pod with React app failing with with status CrashLoopBackOff on kubernetes

docker

kubernetes

docker-desktop