Setup fly.io deployment

rel/env.sh.eex

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# configure node for distributed erlang with IPV6 support
+export ERL_AFLAGS="-proto_dist inet6_tcp"
+export ECTO_IPV6="true"
+export DNS_CLUSTER_QUERY="${FLY_APP_NAME}.internal"
+export RELEASE_DISTRIBUTION="name"
+export RELEASE_NODE="${FLY_APP_NAME}-${FLY_IMAGE_REF##*-}@${FLY_PRIVATE_IP}"
+
+# Uncomment to send crash dumps to stderr
+# This can be useful for debugging, but may log sensitive information
+# export ERL_CRASH_DUMP=/dev/stderr
+# export ERL_CRASH_DUMP_BYTES=4096