Unable to build docker image

Question

This is the dockerfile I'm using to build the docker image:

FROM mhart/alpine-node:base-6

MAINTAINER techhadmin
COPY ./package.json src/
RUN cd src && npm install 
COPY . /src 
WORKDIR /src
EXPOSE 3000
CMD ["npm", "start"]

But I get this error:

/bin/sh: npm: not found
The command '/bin/sh -c cd src && npm install' returned a non-zero code: 127

Any help will be appreciated..

Answer 1

See if this helps:

https://hub.docker.com/r/mhart/alpine-node/

try not using base tags:

# If you need npm, don't use a base tag

# RUN npm install

So don't use base-6 tag and change FROM image to something like 7

FROM mhart/alpine-node:7

Answer 2

It looks like the dev dependencies were not installed, you might have the NODE_ENV variable set to production.

Answer 3

The base image that you're using is 6 and probably you need another version. try using base-7. The reason for this error is, since its using the wrong base image, it creates a wrong path. ​

Answer 4

There is another Cheap workaround(not suggested). You can remove the lines that create errors from the Dockerfile and execute those commands manually. But of course this is not recommended, the entire point of Dockerfile is undermined.