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A base image for ruby containers. Tries to be as slim as possible, based on debian:jessie.
FROM judoole/ruby:2.1 # Install extra packages that is demanded by app # git, ruby-dev, gcc, g++ and make for when using github repos for gems RUN apt-get update && apt-get install -y sqlite3 libsqlite3-dev freetds-dev git ruby-dev gcc g++ make # Copy the Gemfile and Gemfile.lock into the image. # This ensures that bundle install is not run every time docker build is run # Temporarily set the working directory to where they are. WORKDIR /tmp ADD Gemfile Gemfile ADD Gemfile.lock Gemfile.lock RUN bundle install # Everything up to here was cached. This includes # the bundle install, unless the Gemfiles changed. # Now copy the app into the image. ADD . /app # Set the final working dir to the Rails app's location. WORKDIR /app # Set up a default runtime command CMD rails server
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