docker build fails

[C24IO]

I am getting this error after following the excellent tutorial at - http://prakhar.me/docker-curriculum/
Thanks for posting the guide btw ! Error follows -

---> 038991bef88d
Removing intermediate container 6f941a872fa0
Step 10 : RUN npm run build
---> Running in 0f4d249d7776

[email protected] build /opt/flask-app
NODE_ENV='production' webpack -p

webpack 1.12.11
Usage: https://webpack.github.io/docs/cli.html

Options:
--help, -h, -?
--config
--context
--entry
--module-bind
--module-bind-post
--module-bind-pre
--output-path
--output-file
--output-chunk-file
--output-named-chunk-file
--output-source-map-file
--output-public-path
--output-jsonp-function
--output-pathinfo
--output-library
--output-library-target
--records-input-path
--records-output-path
--records-path
--define
--target
--cache [default: true]
--watch, -w
--watch which closes when stdin ends
--watch-aggregate-timeout
--watch-poll
--hot
--debug
--devtool
--progress
--resolve-alias
--resolve-loader-alias
--optimize-max-chunks
--optimize-min-chunk-size
--optimize-minimize
--optimize-occurence-order
--optimize-dedupe
--prefetch
--provide
--labeled-modules
--plugin
--bail
--profile
-d shortcut for --debug --devtool sourcemap --output-pathinfo
-p shortcut for --optimize-minimize
--json, -j
--colors, -c
--sort-modules-by
--sort-chunks-by
--sort-assets-by
--hide-modules
--display-exclude
--display-modules
--display-chunks
--display-error-details
--display-origins
--display-cached
--display-cached-assets
--display-reasons, --verbose, -v

Output filename not configured.
npm ERR! weird error 255
npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian

npm ERR! not ok code 0
The command '/bin/sh -c npm run build' returned a non-zero code: 1

[prakhar1989]

Hey @C24IO, can you share the Dockerfile that you're using?

[C24IO]

Here it is:

# start from base
FROM ubuntu:14.04
MAINTAINER Chaitanya Hazarey <[email protected]>

# install system-wide deps for python and node

RUN apt-get -yqq update
RUN apt-get -yqq install python-pip python-dev
RUN apt-get -yqq install nodejs npm
RUN ln -s /usr/bin/nodejs /usr/bin/node

# copy our application code

ADD flask-app /opt/flask-app
WORKDIR /opt/flask-app

# fetch app specific deps

RUN npm install
RUN npm run build
RUN pip install -r requirements.txt

# expose port
EXPOSE 5000

# start app
CMD [ "python", "./app.py" ]

[gkbijarniya]

@C24IO update file package.json as below given.

"build": "NODE_ENV='production' webpack -p --output-filename webpack.log"

it worked for me.