

Setup Docker Compose Create docker-compose.yml It needs to match the version in Gemfile.lock, A specific version can be set like RUN gem install bundler -v 2.0.2.

Note that the version needs to match the Ruby version in Gemfile. Here uses the latest alpine version of Ruby.

When using the commands 'bundle install' or 'bundle update' I get the following output: I'm attempting to follow the Hartl Rails Tutorial, and having trouble with the bundler gem.
