Docker: npm not found

Question

I have the following Dockerfile:

FROM ubuntu
USER root
RUN apt-get update && apt-get install curl -y
RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
RUN apt-get update && apt-get upgrade -y && apt-get install nodejs -y
RUN mkdir /opt/public
RUN mkdir /opt/bin
ADD public /opt/public
ADD bin /opt/bin
RUN ls -lah /opt/bin
RUN ls -lah /opt/public
ADD run.sh /bin/run.sh
RUN chmod +x /bin/run.sh
RUN cd /opt/bin && npm install
CMD ["/bin/run.sh"]

When I build the Container, I get this eror:

/bin/sh: 1: npm: not found

What is the problem? Could you please help me?

Solution 1

Try installing npm separately while building the image:

RUN apt-get update && apt-get upgrade -y && \
    apt-get install -y nodejs \
    npm                       # note this one

Solution 2

Node also packages npm, so no need to install npm like mentioned by Yury. It's in general a bad idea to do it like that, because you don't have control over the nodejs and npm version

For me the answer was quite simple. I had the following code:

# install nodejs
RUN curl --silent --location https://deb.nodesource.com/setup_12.x | bash -
RUN apt-get install -y \
  nodejs
RUN echo "Node: " && node -v
RUN echo "NPM: " && npm -v

but I for got to install curl, so it failed. So before this, you need to install curl:

RUN apt-get update && apt-get install -y curl

Comments

[Sohrab]

Thanks, I used "apt-get install npm -y" instead of "npm install". Everything is ok.

[Sohrab]

When I run docker, I get this error: Cannot find module 'localstorage-polyfill' Do you have any solution?

[Yury Fedorov]

It's probably because you cnahged npm install to apt-get install npm, while you need both

[Sohrab]

You are right. I wrote both in the Dockerfile. Everything is fine.

[fabpico]

Did not work for me, i had to curl -sL https://deb.nodesource.com/setup_13.x | bash - first.

[bersling]

@FabianPicone I also prefer that option, but don't forget to install curl, or you'll get exactly the error outlined above :)

[tplusk]

Great catch! I had the same gotcha