A server is already running. Check …/tmp/pids/server.pid. Exiting - rails

Question

..$ rails s
=> Booting WEBrick
=> Rails 4.0.4 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=>         


        

Answer 1

If you are using docker-compose, and in docker-compose.yml have: volumes: - .:/myapp That means you local workspace is mapped to the container's /myapp folder.

Anything in /myapp will not be deleted for the volumes define.

You can delete ./tmp/pids/server.pid in you local machine. Then the container's /myapp will not have this file.