I wrote a thing: http://engineering.pivotal.io/post/how-to-set-up-an-elixir-cluster-on-amazon-ec2/
Hope this is helpful!
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Thank you for writing things!
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Ok, i just registered here while learning elixir and was curious to know how shall I distribute my tiny little services as nodes in a cluster over N networks and voilà there’s a topic with a fine article. This elixir community is awesome and btw bought your book 
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Best. Comment. Ever. <3
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<3! Thanks!
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Shared your post on the Spanish group of Elixir, they loved it!
Cheers.
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This makes me very happy.
Awesome! Thank you so much for putting time into this.
Would love to see how to go about this in an auto-scaling environment (in which the nodes dynamically created and removed, and thus, the hosts are not known at deployment)
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Yes, details on how @bentanweihao would recommend to go about in an auto scaling environment would be awesome!
Thanks for writing this up 
A few questions
- How secure is the communication between nodes? Does it happen in clear text?
- I see that you can execute code on other nodes, are there any particular instances in a phoenix app where this could be useful? The way it is setup in your post HAProxy would distribute the load regardless of the phoenix apps being in a cluster. Do you see any scenarios where cross node communication may be useful?
- I think you will want to encrypt the connection
How would you go about encrypting the connection?
One way is to use a VPN.
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