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MIT Sustainability Summit

Data Migration

To migrate from the data in the old site run

$ ./bin/migrate

This script assumes the following files will existing. These are not shared publicly at the moment.

lib
├── data
│   ├── db-person
│   ├── db-sponsor
│   ├── db.sql.erb
│   ├── migrate.sql
│   ├── migration.rb
│   └── photos

./bin/migrate drops the current development database, sets it up, loads the old data from a sql file. The sql file is processed by ERB to dynamically add data for columns with null constraints. After the db is loaded, using rails r, the images are loaded from db-person, db-sponsor, and photos. This script looks for a record with the corresponding id as the file name and updates the record. On save, the image is processed by paperclip and stored in public/system.

Deploy to VM

The app can also be deployed to a VM on anyone of the cloud providers using Capistrano. The easiest way to setup a VM is to follow the GoRails Guide. If you use CentOS or RHEL, you'll need to find a way to workaround SELinux. Passenger doesn't play nice with it.

Deploying to Heroku

Add gem 'aws-sdk-v1 to the gemfile and add the following snippet to the paperclip configuration block in config/environments/production.rb:

:storage => :s3,
:s3_credentials => {
:bucket => ENV['S3_BUCKET_NAME'],
:access_key_id => ENV['AWS_ACCESS_KEY_ID'],
:secret_access_key => ENV['AWS_SECRET_ACCESS_KEY']
}

Don't forget to remove ':storage => :filesytem'. You can only have one entry

Running

$ ./bin/heroku-sync

copies the development database to Heroku and syncs the images in public/system with AWS. The AWS sync requires you to have the awscli installed and configured with your bucket:

S3_BUCKET_NAME
AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY

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