Deploy ruby on rails application with Dokku on Digital Ocean

gistfile1.txt

1) Create a droplet on Digital Ocean

   1.1 cloud.digitalocean.com/droplets/new;
   1.2 In choose an image click on "One-click apps" and choose Dokku Image;
   1.3 After choose the size, datacenter region, add your SSH Keys¹ and choose a hostname;
   1.4 Create.

¹ - Find your SSH Keys in ~/.ssh/id_rsa.pub

2) SSH connection
   2.1 Add your ssh key for Dokku with the command: cat ~/.ssh/id_rsa.pub | ssh root@yourdokkuinstance "sudo sshcommand acl-add dokku laptop"
   2.2 ssh root@host

3) Deploy

   3.1 From your local machine clone your project
   3.2 On your Dokku host: dokku apps:create your-app
   3.3 Install the postgres plugin: sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git
   3.4 Create a postgres service with the name rails-database: dokku postgres:create your-rails-database
   3.5 Link database and your app: dokku postgres:link your-rails-database your-app
   3.6 git remote add dokku dokku@host:your-app
   3.7 git push dokku master
   
4) Migrate your database

   4.1 ssh root@host dokku run your-app rake db:migrate
   4.2 ssh root@host dokku run your-app rake db:seed