CODEWITHSUNDEEP
dockernpm-start
Nitin Bisht
Nitin Bisht

Reputation: 271

run npm start as ENTRYPOINT from the Dockerfile

I am trying to build a dockerfile in which i am just starting a http-server. My dockerfile is:

FROM ubuntu

RUN apt-get update
RUN apt-get install -y nodejs && apt-get install -y npm
COPY testing /testing
RUN cd testing
RUN npm install

ENTRYPOINT npm start

Here testing is the project directory which consist of an index.html file and package.json.

My package.json is:

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "http-server -a 0.0.0.0 -p 5500"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "concurrently": "^5.0.2",
    "http-server": "^0.12.1"
  }
}

In my local machine the server is working properly. I think the cd testing command isn't appropriate and npm install is not taking the package.json file.

The docker image is formed under the Image ID - 6260786586cc

and the error while running an image through command is:

Upvotes: 1

Views: 12229

Answers (1)

Shashank V
Shashank V

Reputation: 11193

Use WORKDIR instruction instead of cd.

WORKDIR testing

Each instruction in Dockerfile is executed in a separate container during build. So running cd to change directory during build doesn't work.

Upvotes: 5

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