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official-documentation-samples/rails/README.md
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@ -1,7 +1,9 @@
# Quickstart: Compose and Rails
This Quickstart guide shows you how to use Docker Compose to set up and run
a Rails/PostgreSQL app. Before starting, [install Compose](https://docs.docker.com/compose/install/).
a Rails/PostgreSQL app in your local development environment. Before starting, [install Compose](https://docs.docker.com/compose/install/).
Note: This guide does not cover running Docker/Docker Compose in production.
## Define the project
@ -97,7 +99,11 @@ With those files in place, you can now generate the Rails skeleton app
using [docker compose run](https://docs.docker.com/engine/reference/commandline/compose_run/):
```console
# rails 6
$ docker compose run --no-deps web rails new . --force --database=postgresql
# rails 7 - without skip flag, generates a production dockerfile that isn't suitable for local development
$ docker compose run --no-deps web rails new . --force --database=postgresql --skip-docker
```
First, Compose builds the image for the `web` service using the `Dockerfile`.