Question 82231 in Docker Question posted in
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I'm trying to create a container from an image of a small project, but I get an error: docker: Error response from daemon

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

Tags:

2

Answers


  1. 0

    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
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  2. 0

    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" ]
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