Dockerfile issues

Question

Hi I got a project with a dockerfile, and I am trying to build the dockerfile to run the project in the environment it was created but I seem to get an error at step 5 of the build and when I look at the dockerfile I find the code a bit strange/I dont understand it at that point.

This is the dockerfile:

FROM node:8.10-alpine

ENV NODE_ENV development

# Create app directory
WORKDIR /var/app

# Install Node packages
COPY package.json package.json

RUN apk install git \

  && npm i \
  && apk del .gyp\
  && mv /var/app/node_modules /node_modules \
  && rm -rf /var/cache/apk/* \
  && apk del git

# Bundle app source
COPY . .
#COPY entrypoint.sh entrypoint.sh

# Expose port
EXPOSE 88

#ENTRYPOINT ["./entrypoint.sh"]
CMD ["npm", "run", "dev"]

This is the error i am getting:

Step 5/8 : RUN apk install git   && npm i   && apk del .gyp  && mv /var/app/node_modules /node_modules   && rm -rf /var/cache/apk/*   && apk del git
 ---> Running in 251259cdb8a2
apk-tools 2.7.5, compiled for x86_64.

Then I get a bunch of text which resembles what you get if you type -help on something and then at the end i get:

This apk has coffee making abilities.
The command '/bin/sh -c apk install git   && npm i   && apk del .gyp  && mv /var/app/node_modules /node_modules   && rm -rf /var/cache/apk/*   && apk del git' returned a non-zero code: 1

This seems to be the problematic part:

RUN apk install git \
  && npm i \
  && apk del .gyp\
  && mv /var/app/node_modules /node_modules \
  && rm -rf /var/cache/apk/* \
  && apk del git

Answer 1

Just try adding an additional line before using apk and see if it fixes

RUN echo "ipv6" >> /etc/modules
RUN apk install git \ 

Reference: link

Note : Breaking the problematic step into multiple steps like

RUN apk install git
RUN npm i 
RUN apk del .gyp
RUN mv /var/app/node_modules /node_modules 
RUN rm -rf /var/cache/apk/* 
RUN apk del git

will help to locate the point of problem more accurately.

Answer 2

You have 2 issues. One is with the command apk del .gyp (which return code is different from 0 ) , and the other is related to the fact that you do not mount correctly your folder.

# apk del .gyp
# echo $?
1

Besides, there is no such thing as /var/app/node_modules mounted in the container:

# ls /var/app/node_modules
# ls: /var/app/node_modules: No such file or directory

What you would do, is

1. Make sure you mount correctly /var/app/node_modules in the container
2. I am not sure what the command apk del .gyp is doing, but you may need to investigate it. It does not seems to work properly.