From 9b5133dcbb39114a7f7ab84e0313d4f7035df123 Mon Sep 17 00:00:00 2001
From: Logan Hunt <logan.hunt@usu.edu>
Date: Wed, 1 Feb 2023 10:25:20 -0700
Subject: [PATCH] Fuck it. Environment variable hack.

---
 buildscripts/build/build.sh |  1 +
 config/dev.exs              |  8 --------
 config/prod.exs             | 17 -----------------
 config/runtime.exs          | 17 +++++++++++++++++
 config/test.exs             |  8 --------
 5 files changed, 18 insertions(+), 33 deletions(-)

diff --git a/buildscripts/build/build.sh b/buildscripts/build/build.sh
index 3cc5717..5930c00 100755
--- a/buildscripts/build/build.sh
+++ b/buildscripts/build/build.sh
@@ -151,6 +151,7 @@ function build_server() {
     
     cp "${build_dir}/.env" $temp_file
     printf "\nNODE_ID=$node_conn\nRELEASE_NODE=chessh@192.168.100.${node_id}\nRELEASE_DISTRIBUTION=name\nRELEASE_COOKIE=chessh\n" >> $temp_file
+    printf "CLUSTER_NODES=$(printf "chessh@192.168.100.%s," ${server_node_ids[@]})\n" >> $temp_file
     scp $ssh_opts $temp_file $node_conn:~/.env
 
     cp "${build_dir}/chessh.service" $temp_file
diff --git a/config/dev.exs b/config/dev.exs
index 0881420..f37da7b 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -12,11 +12,3 @@ config :hammer,
       {Hammer.Backend.ETS, [expiry_ms: 60_000 * 60 * 4, cleanup_interval_ms: 60_000 * 10]},
     redis: {Hammer.Backend.ETS, [expiry_ms: 60_000 * 60 * 4, cleanup_interval_ms: 60_000 * 10]}
   ]
-
-config :libcluster,
-  topologies: [
-    chessh_dev: [
-      strategy: Elixir.Cluster.Strategy.ErlangHosts,
-      config: [timeout: 30_000]
-    ]
-  ]
diff --git a/config/prod.exs b/config/prod.exs
index 838a637..bb12243 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -10,20 +10,3 @@ config :chessh, RateLimits,
   max_concurrent_user_sessions: 5,
   player_session_message_burst_ms: 750,
   player_session_message_burst_rate: 8
-
-config :libcluster,
-  topologies: [
-    chessh: [
-      strategy: Elixir.Cluster.Strategy.Gossip,
-      config: [
-        port: 45892,
-        if_addr: "0.0.0.0",
-        multicast_if: "192.168.1.1",
-        multicast_addr: "233.252.255.255",
-        multicast_ttl: 1
-      ]
-    ]
-  ]
-
-config :libcluster,
-  debug: true
diff --git a/config/runtime.exs b/config/runtime.exs
index ebdb2cc..19078c5 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -13,6 +13,23 @@ config :chessh, Web,
     System.get_env("SERVER_REDIRECT_URI", "http://127.0.0.1:3000/api/oauth/redirect"),
   port: String.to_integer(System.get_env("WEB_PORT", "8080"))
 
+config :libcluster,
+  topologies: [
+    chessh: [
+      strategy: Cluster.Strategy.Epmd,
+      config: [
+        hosts:
+          String.split(System.get_env("CLUSTER_NODES", ""), ",")
+          |> Enum.filter(fn x -> String.length(x) > 0 end)
+          |> Enum.map(&String.to_atom/1)
+      ],
+      connect: {:net_kernel, :connect, []},
+      disconnect: {:net_kernel, :disconnect, []},
+      list_nodes: {:erlang, :nodes, [:connected]},
+      child_spec: [restart: :transient]
+    ]
+  ]
+
 config :joken,
   default_signer: System.get_env("JWT_SECRET")
 
diff --git a/config/test.exs b/config/test.exs
index 83ee6f1..a4fd692 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -18,14 +18,6 @@ config :hammer,
     redis: {Hammer.Backend.ETS, [expiry_ms: 60_000 * 60 * 4, cleanup_interval_ms: 60_000 * 10]}
   ]
 
-config :libcluster,
-  topologies: [
-    chessh_test: [
-      strategy: Elixir.Cluster.Strategy.Epmd
-    ]
-  ]
-
-
 config :chessh,
   ssh_port: 42_069,
   key_dir: Path.join(Path.dirname(__DIR__), "priv/test_keys")