Multiple Heroku apps on a single domain

问题

I'm pretty sure the answer to this is "not possible", but I thought I would check one last time:

I'm migrating some Rails apps to Heroku. The way they are organized now, URL-wise, is:

http://example.com/site1 -- is served by app1
http://example.com/site2 -- is served by app2

Everything I've read so far says this isn't possible on Heroku: that each application must have its own subdomain (e.g. site1.example.com, site2.example.com).

My client does not want to change the URL structure (and actually there may be some argument for that; I've read several sources that say that paths vs. subdomains is better for SEO).

Am I correct that this is not possible on Heroku?

回答1:

This IS possible with Heroku and Rails using Rack Reverse Proxy. I'm currently doing it to run a Wordpress blog and knowledge base at /blog and /kb respectively. For SEO purposes I did not want them on a subdomain.

Rails configuration

Add to Gemfile:

gem "rack-reverse-proxy", :require => "rack/reverse_proxy"

Now we want /blog and /blog/ to be directed to the Wordpress instance from the Rails app.

Add this to your config.ru right before you run the app:

use Rack::ReverseProxy do
  reverse_proxy(/^\/blog(\/.*)$/,
    'http://CHANGEME.herokuapp.com$1',
    opts = {:preserve_host => true})
end

In config/routes.rb add a route:

match "/blog" => redirect("/blog/"), via: :all

Original Ref: http://rywalker.com/setting-up-a-wordpress-blog-on-heroku-as-a-subdirectory-of-a-rails-app-also-hosted-on-heroku

回答2:

I’m probably late to the party, but it is possible. Short version of how we did it at Pilot:

We have an additional instance running HAProxy. It’s responsible for routing requests to corresponding Heroku apps based on their URL. ✌️

回答3:

Your best bet is to turn your Rails apps into Rails engines:

http://pivotallabs.com/migrating-from-a-single-rails-app-to-a-suite-of-rails-engines/

And then mount each engine with the URLs you describe.

Of course, this is probably going to be tricky if your apps are very large and complex.

来源：https://stackoverflow.com/questions/19119164/multiple-heroku-apps-on-a-single-domain

标签

ruby-on-rails

heroku