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Demo for the talk "Distributed Systems with Rack"
This is the complete code for my Scottish Ruby Conference talk. It demonstrates the idea
of having a website generated by multiple distinct and distributed services. For the
purposes of the demo, we have a server application which assigns roles to computers that
connect. In reality, you'd probably have a legitimate proxy server sit in front of the
clusters of nodes...
In our case though, we keep a list of clients that are connected, and which roles
they've been assigned to. When we want to generate a page, we determine which roles are
necessary, pick one of the clients from each role at random, and use Nginx to combine
the results into a single page.
Client Startup
ruby client.rb
Server Startup
nginx -c /path/to/distributed_demo/nginx/nginx.conf
ruby server.rb 9876