mina 1.2.4: Allow multiple deployments with different RAILS_ENV

[abhinavc]

I am looking to deploy two instances of a Rails app on a VPS - one for production and one for sandbox (or staging / testing).

But it seems to me that mina wouldn't allow it.

In task rails:db_migrate, rails_env is hard-coded to production with no means to override it. And this rails_env then percolates down to bundle_prefix and thence to rake and rails etc.

Could a way be provided therefore to set :rails_env to something other than the default production?

[lovro-bikic]

You can override variables in your deploy.rb script.

If you set:

# config/deploy.rb
require 'mina/rails'

set :rails_env, 'staging'

it will set the rails_env variable to staging (or rather, the value staging will override the value production).

Regarding deploying to multiple environments, see this code sample, and let me know if it helps.

[abhinavc]

Thanks @lovro-bikic

I realized after I filed the issue that set :rails_env, 'staging' would work. I wrongly assumed that once set a value could not be changed - not realizing that if set is passed a block, then that block will be used by fetch to return the updated value.