Docker - Ruby on Rails

A pretty simplified Docker Compose workflow that sets up (Ruby, Redis, PostgreSQL) network of containers for local ruby development.

Ports

Ports used in the project:

Software	Port
ruby	3000
postgre	5432
redis	6379

Use

To get started, make sure you have Docker installed on your system and Docker Compose, and then clone this repository.

1. Clone this project:

   git clone https://github.com/supermavster/docker-ruby-on-rails.git

2. Inside the folder docker-ruby and Generate your own .env to docker compose with the next command:

   cp .env.example .env

3. You need Create or Put your laravel project in the folder source; to create follow the next instructions Here.

4. Build the project whit the next commands:

   docker-compose up --build

---

Remember

The configuration of the database must be the same on both sides .

# .env
# Develop Mode
RAILS_ENV=development

# Postgres
POSTGRES_HOST_AUTH_METHOD=trust

# Database Env
DATABASE_NAME=rails_development
DATABASE_USER=supermavster
DATABASE_PASSWORD=password
DATABASE_HOST=database

# Redis data
REDIS_HOST=redis

# source/.env
# Develop Mode
RAILS_ENV=development

# Postgres
POSTGRES_HOST_AUTH_METHOD=trust

# Database Env
DATABASE_NAME=rails_development
DATABASE_USER=supermavster
DATABASE_PASSWORD=password
DATABASE_HOST=database

# Redis data
REDIS_HOST=redis

The only change is the DB_HOST in the source/.env where is called to the container of database:

# source/.env
DB_HOST=database

Please check the file database.yml with the next values:

default: &default
  adapter: postgresql
  encoding: unicode
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  host: database
  username: postgres
  password: 

development:
  <<: *default
  adapter: postgresql
  encoding: unicode
  database: rails_development
  username: postgres 
  password: password
  pool: 5
  host: database
  

---

Special Cases

To Down and remove the volumes we use the next command:

docker-compose down -v