Fix commit resolution for Docker builds

config/initializers/version.rb

@@ -5,7 +5,11 @@ module Maybe
     end
 
     def commit_sha
-      `git rev-parse HEAD`.chomp
+      if Rails.env.production?
+        ENV["BUILD_COMMIT_SHA"]
+      else
+        `git rev-parse HEAD`.chomp
+      end
     end
 
     private