$ make build
$ make sh # Enter the container
$ apt-get update && apt-get install vim
$ EDITOR="vim" bin/rails credentials:edit -e test
$ EDITOR="vim" bin/rails credentials:edit -e development
$ EDITOR="vim" bin/rails credentials:edit -e staging
$ EDITOR="vim" bin/rails credentials:edit -e production
$ make up
$ make dbc # db create
$ make dbm # db migrate