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How to bundle install a local path gem with docker?

Tags:

docker

ruby-on-rails

gem

I am using docker and rails.

I created a local gem and put it into vendor/gems folder.

And I add this into my Gemfile:

gem 'my_gem', path: './vendor/gems/my_gem'

In my Dockerfile

RUN mkdir /testapp
WORKDIR /testapp
ADD Gemfile /testapp/Gemfile
ADD Gemfile.lock /testapp/Gemfile.lock
RUN bundle install
ADD . /testapp

After run docker-compose build, it shows:

The path `/testapp/vendor/gems/my_gem` does not exist.
ERROR: Service 'web' failed to build: The command '/bin/sh -c bundle install' returned a non-zero code: 13
like image 979
scho Avatar asked Nov 06 '15 05:11

scho

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2 Answers

After I add this in Dockerfile, it worked.

ADD vendor/gems/my_gem /testapp/vendor/gems/my_gem
like image 136
scho Avatar answered Oct 26 '22 03:10

scho

You can add following at your Dockerfile:

RUN gem install --local path_to_gem/filename.gem
like image 31
sadaf2605 Avatar answered Oct 26 '22 04:10

sadaf2605
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