Ruby on Rails 7 docker template with postgresql

1. Download the project first or git clone.

 git clone https://github.com/Mashpy/rails-7-docker-template-with-postgresql.git

If you clone you have to change your repo name later from .git/config file

2. Rename the project name as your wish

 mv rails-7-docker-template-with-postgresql your_project_name

3. Change directory -

 cd your_project_name

4. Update your rails version on the Gemfile -

source 'https://rubygems.org'
gem 'rails', '7.0.3'

5. Update Ruby version on Dockerfile -

FROM  ruby:3.1.2-slim

6. Now install new rails app -

 docker-compose run app rails new . --force --database=postgresql --skip-bundle

7. Build the docker image -

 docker-compose build

8. Update database details on config/database.yml file.

default: &default
  adapter: postgresql
  encoding: unicode
  host: postgres
  username: postgres
  password: password
  pool: 5

development:
  <<: *default
  database: dev


test:
  <<: *default
  database: dev

9. Run -

 docker-compose up

10. wait little bit see your eyes on the console, it should show -

Puma Listening on http://0.0.0.0:3000
Pg admin Listening at: http://[::]:80 (1)

It will take time to load. Keep patient. After then then open another terminal and create a database -

docker-compose exec app rake db:create

11. Browse http://localhost:3000.

12. Browse http://localhost:5050/ . You can login on pgadmin. username: admin@admin.com password: password

13. Add database connection on pgadmin. You need your postgres_container IP address.

docker ps

copy hash code of postgres_container.

docker inspect fcc97e066cc8 | grep IPAddress

14. after login on pgadmin add connection. Write host IP address. username: postgres password: password

15. now you can start work on your project.