My first heroku app!

Used a Udacity course.

The steps:

1. (heroku account)
2. (heroku toolbelt)
3. heroku login
4. (git)
5. (fork)
6. (clone)
7. cd galeria
8. git status
9. heroku create
10. git remote -v
11. git push heroku master
12. heroku open
13. (I changed my app’s URL/name to "my-galeria" at https://dashboard.heroku.com/)
14. git remote rm heroku
15. heroku git:remote -a my-galeria
16. heroku open (should take you to https://my-galeria.herokuapp.com/)

Staging = mock test; Deploying = final production push

https://devcenter.heroku.com/articles/multiple-environments

Local computer vs remote server

local computer:

<command>

remote server:

heroku run <command>

Setting up a database for the app:

1. git checkout -b pg origin/pg (to create branch "pg" = PostgreSQL database for Ruby as required by Heroku)
   • or git checkout origin/pg
2. (postgresql: http://postgresapp.com/ or http://www.postgresql.org/download/windows/ or http://www.postgresql.org/download/linux/ubuntu/)
3. bundle install (to check the ActiveRecord gem that translates ruby to sql is stable locally)
4. ruby app.rb
5. (visit localhost:4567 to see a Sinatra error)
6. (shut down server)
7. rake db:migrate (to create database table)
8. ruby app.rb
9. (localhost:4567)
10. git branch (check on pg branch)
11. git push heroku HEAD:master
12. heroku open (should get internal server error)
13. heroku run rake db:migrate (should get error cannot find database connection b/c no postgresql addon included in heroku)
14. heroku addons:create heroku-postgresql (to include the postgresql addon)
15. heroku run heroku run rake db:migrate (to try database migrations again in the heroku server)
16. (refresh page)