我正在尝试从一个小项目的图像创建一个容器，但我收到一个错误：docker: 来自守护进程的错误响应

Question

DockerFile

FROM node:latest

WORKDIR /app

COPY . .

RUN npm install

EXPOSE 8080

ENTRYPOINT ["nodemon", "server.js"]

Server.js

const express = require('express');
const swaggerUi = require('swagger-ui-express');
const app = express();
const userRouter = require('./routes/userRoutes');
const productRouter = require('./routes/productsRoutes');
const swaggerFile = require('./swagger/swagger_output.json');

const PORT = 8000;

app.use('/doc', swaggerUi.serve, swaggerUi.setup(swaggerFile));
app.use(express.json());
app.listen(PORT, () => {
   console.log(`Server rodando em: http://localhost:${PORT}`)
});

app.use('/api', userRouter);
app.use('/api/products', productRouter);

The error : docker: Error response from daemon: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "nodemon": executable file not found in $PATH: unknown.

The command docker run -d -p 8000:8080 projeto-pratico-api/node

*projeto-pratico-api/node = name of the image

Answer 1

Your main container process is nodemon , but it's not installed in your image. Since a Docker image contains an immutable copy of the application code, it will never change while the container is running, and you don't need a monitoring tool like nodemon ; just set the main container process to run node .

ENTRYPOINT ["node", "server.js"]
#            ^^^^ not nodemon

Answer 2

Try installing nodemon from your Dockerfile?

Add:

RUN npm install -g nodemon

Full updated Dockerfile:

FROM node:latest

WORKDIR /app

COPY . .

RUN npm install -g nodemon

RUN npm install

EXPOSE 8080

ENTRYPOINT ["nodemon", "server.js"]

Second approach, use node instead of nodemon:

FROM node:16

# Create app directory
WORKDIR /usr/src/app

# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./

RUN npm install

# Bundle app source
COPY . .

EXPOSE 8080
CMD [ "node", "server.js" ]