Distributed Elixir in Amazon ECS

Questions & Help Questions
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2

You have hit on the major points. For the hostname, I can offer a concrete example. In the script that starts my application:

# Permit OS variable substitution for starting the VM
export REPLACE_OS_VARS=true

# Get the EC2 fully-qualified hostname for the node name
export PUBLIC_HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/public-hostname`

Then in rel/vm.args you can set the node name using the env var:

-name <%= release_name %>@${PUBLIC_HOSTNAME}