Creating myapp (from the book _Docker For Rails Developers_)

get_started.md

1. Start the Docker container by entering this command:

docker run -i -t --rm -v ${PWD}:/usr/src/app/ ruby:2.6 bash

2. Enter these commands in the Docker container:

cd /usr/src/app # Enter the shared directory
gem install rails -v 5.2.4 # Install Rails
rails _5.2.4_ new myapp --skip-test --skip-bundle # Create the new Rails app

3. Exit the Docker container by entering the command "exit".

4. Make the myapp app owned by your username instead of root by entering this command:

sudo chown `whoami`:users -R myapp