From e3e4af9a1a46d57bf47c34b23f46f036fc2b4dd6 Mon Sep 17 00:00:00 2001
From: Mike Cook <mike@mike-cook.co.uk>
Date: Thu, 4 Nov 2021 19:47:48 +0000
Subject: [PATCH] Fail over to environmental storage URL config

`ModelPool.createModel` is always called with empty config, so always breaks when using non-default storage URLs e.g. `HUBOT_MARKOV_STORAGE_URL=postgres://postgres:password@localhost:5432/hubot`.

This change keeps the current behaviour, but fails over to look up the instance config, which is provided from env vars and passed into the instance in the module root
---
 src/model-pool.coffee | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/model-pool.coffee b/src/model-pool.coffee
index d302f8d..bcdc5e4 100644
--- a/src/model-pool.coffee
+++ b/src/model-pool.coffee
@@ -40,7 +40,7 @@ class ModelPool
     else
       storageImpl = @defaultStorageImpl
 
-    storage = new storageImpl(options.storageUrl, name, @robot)
+    storage = new storageImpl(options.storageUrl or @config.storageUrl, name, @robot)
     storage.initialize (err) ->
       if err?
         queue.failed()