Ruby on rails smaller docker images.
Docker ruby on rails postgresql.
Then it runs rails new inside a new container using that image.
Preparation we will need a few tools installed in the system to get started with rails development.
Docker images that are.
Ruby on rails is an open source web framework written in ruby.
This guide will step you through creating a rails application that uses a postgres database.
Force database postgresql first compose builds the image for the web service using the dockerfile.
On docker your rails project is not linked to postgresql yet.
You will create multiple containers for the application itself the postgresql database redis and a sidekiq service with docker compose.
Jan 14 2019 5 min read.
If not please check the steps above or start them with docker compose up.
It is where docker comes in handy the image created once can run in any platform as long as docker is installed.
Docker compose run no deps web rails new.
Open a new terminal docker compose run web rake db create db migrate.
Today we are going to deploy a ruby on rails application in docker.
The setup will do the following.
Create the postgresql database and run migrations.
By default it assumes that mysql is being used but it s quite easy to use with postgres instead.
The no deps tells compose not to start linked services.
The application should be running locally on docker.
I used to teach web development with ruby on rails in a technical boot camp.
In a new terminal run this command docker compose.
Read about the advantages of using docker and learn how to build and dockerize a ruby on rails application that uses postgresql redis and sidekiq.
Almost everyone struggled with installing ruby rails and postgres together and getting them up and running.
This tutorial will show you how to set up a development environment for a ruby on rails application using docker.