foodsoft/doc/SETUP_DEVELOPMENT_DOCKER.md

# Foodsoft on Docker

This document explains setting up Foodsoft with Docker for development.
system. Another option is to run it [within an existing system](SETUP_DEVELOPMENT.md).
If instead you just want to run Foodsoft without changing its code, please refer to
[hosting](https://foodcoops.github.io/foodsoft-hosting/) or
[deployment](https://github.com/foodcoops/foodsoft/wiki/Deployment-notes).


## Requirements

* Docker (=> 1.9.1)
* Docker Compose (=> 1.4)
* Nothing more, no Ruby, MySQL, Redis etc!

For installing instructions see https://docs.docker.com/installation/.
Docker runs on every modern Linux kernel, but also with a little help on MacOS
and Windows!

## Prerequisites (Linux only)
To install Docker without root privileges, see Run the Docker daemon as a non-root user (Rootless mode):
https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user


## Prerequisites (Windows only)
To avoid line-ending issues with shell scripts, make sure to configure
Git autocrlf to keep linux line endings via

    git config --local core.autocrlf input

Don't forget to do a clean checkout (delete everything except `.git` directory)
afterwards.

## Setup

Then start the database server and setup foodsoft development (this will take
some time, containers needs to be pulled from docker registry and a lot
dependencies needs to be installed)

    docker-compose -f docker-compose-dev.yml up -d mariadb
    docker-compose -f docker-compose-dev.yml run --rm foodsoft \
      bundle install
    docker-compose -f docker-compose-dev.yml run --rm foodsoft \
      bundle exec rake foodsoft:setup_development_docker

Optionally an initial database (here seeded with `small.en`) can be loaded by running

    docker-compose -f docker-compose-dev.yml run --rm foodsoft \
      bundle exec rake db:schema:load db:seed:small.en

To avoid having to pass the `-f` argument all the time, it is recommended to setup
an alias, e.g. by adding the following line to your ~/.bashrc

    alias docker-compose-dev='docker-compose -f docker-compose-dev.yml'

then reload it by executing `. ~/.bashrc`. Following commands assume this is setup.


## Usage

Start containers (in foreground, stop them with `Ctrl-C`)

    docker-compose-dev up

Run a rails/rake command

    docker-compose-dev run --rm foodsoft bundle exec rake db:migrate

Open a rails console

    docker-compose-dev run --rm foodsoft bundle exec rails c

Setup the test database

    docker-compose-dev run --rm mariadb mariadb --host=mariadb --password=secret --execute="CREATE DATABASE test"
    docker-compose-dev run --rm foodsoft bundle exec rake db:schema:load RAILS_ENV=test DATABASE_URL=mysql2://root:secret@mariadb/test?encoding=utf8mb4

Run the tests

    docker-compose-dev run --rm foodsoft ./bin/test

Jump in a running container for debugging.

    docker exec -ti foodsoft_foodsoft_1 bash


## Notes

### Receiving mails

Go to [http://localhost:1080](http://localhost:1080)

### Manage database

Go to [http://localhost:2080](http://localhost:2080)

### Gemfile updates

As the gem bundle is stored in a volume, you can run

    docker-compose-dev run --rm foodsoft bundle install
    docker-compose-dev restart foodsoft foodsoft_worker

Do this each time you update your `Gemfile`.

### Database configuration

To make this easier we use the environment variable `DATABASE_URL`
(and `TEST_DATABASE_URL` when using the testing script).