> For the complete documentation index, see [llms.txt](https://valist.gitbook.io/valist/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://valist.gitbook.io/valist/guides/setup-rails-postgresql.md).

# Setup: Rails / PostgreSQL

This example demonstrates how to run a Rails application that uses PostgreSQL. 

[See the complete example code on GitHub](https://github.com/valist/sample-ruby-postgresql)

### valist.yml

```
services:
  db:
    image: postgres:10.13
    environment:
      - POSTGRES_PASSWORD=password
  web:
    public: true
    cmd: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
    port: 3000
    depends_on:
    	- db
steps:
  - name: createdb
    service: web
    cmd: rake db:create
```