Gems are not found inside Docker container After sourcing RVM path

scenario1

So the problem I am facing like after building the docker images. If I am going inside the docker container and doing GEM_PATH=$GEM_HOME gem list it is not showing all the gems installed at the time of building the image. it is showing only a few gems.

scenario2

If I am not sourcing the RVM path inside the Dockerfile.Then If I am going inside the docker container and doing GEM_PATH=$GEM_HOME gem list then it is showing all the gems.

Can anyone please explain to me why this is happening and what is the fix for this?

Below is my Dockerfile

RUN apt-get update -qq && apt-get install -y sudo && apt-get install -y build-essential && apt-get install -y apt-utils && apt-get install -y git
RUN gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB && \curl -sSL https://get.rvm.io | sudo bash -s stable --ruby && echo 'source /usr/local/rvm/scripts/rvm' >> /etc/bash.bashrc
RUN /bin/bash -l -c 'gem install bundler -v 1.17.3'
RUN /bin/bash -l -c 'gem install rails --version=5.2.4.1'
WORKDIR /app
RUN bundle config build.nokogiri --use-system-libraries
RUN bundle config set path 'vendor/bundle'
COPY Gemfile Gemfile.lock ./
ARG SSH_KEY
# Make ssh dir
RUN mkdir /root/.ssh/
# Copy ssh
RUN echo "$SSH_KEY" > /root/.ssh/id_rsa && \
   chmod 0600 /root/.ssh/id_rsa
RUN touch /root/.ssh/known_hosts
# Add bitbuckets key
RUN ssh-keyscan bitbucket.org >> /root/.ssh/known_hosts
RUN bundle install
COPY . ./
EXPOSE 80:80
CMD rails s -p 80 -b '0.0.0.0' -e qa```




Read more here: https://stackoverflow.com/questions/64944151/gems-are-not-found-inside-docker-container-after-sourcing-rvm-path

Content Attribution

This content was originally published by Ranjan Singh at Recent Questions - Stack Overflow, and is syndicated here via their RSS feed. You can read the original post over there.

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