Use absolute path in case WORKDIR is changed

ankane · ankane · commit 4cf9a3eee3b7 · 2020-03-18T15:47:20.000-07:00
diff --git a/Dockerfile b/Dockerfile
@@ -27,4 +27,4 @@ ENV PORT 8080
 
 EXPOSE 8080
 
-CMD puma -C config/puma.rb
+CMD puma -C /app/config/puma.rb
