Rails application on Docker

Dockerfile explanation:

Firstly i used ruby on alpine and installed rails and nodejs and other dependencies.

As a second step i copied Gemfile, Gemfile.lock, Rakefile, yarn.lock into the image.

Then i installed yarn and run yarn install

After yarn i used bundle install to install dependencies.

Lastly i used rails s as runtime command.

Explanation of docker-compose-file:

I have two services called db and web.

For db service i use postgres:alphine image I am using postgresql directory as host directory of database and /var/lib/postgres/data as postgres directory insdie docker. I haven't been able to use token as crendential instead of password as a environment variable.

For web service I am running whatever the Dockerfile built and created for me with the rails s command binding to 0.0.0.0 and port 3000.

Issues i couldn't able to solve:

I am able to get the docker-compose up without a problem but i think i haven't configured database correctly. I am getting this page instead of expected rails home page.