WORKDIR will mkdir

m1k1o · web-flow · commit c24a2330b4d2 · 2019-12-28T14:10:08.000+01:00
No need to create dir, `WORKDIR` will do that. https://stackoverflow.com/a/52964306/1113204
diff --git a/Dockerfile b/Dockerfile
@@ -1,6 +1,5 @@
 FROM ruby:2.7
 
-RUN mkdir /app
 WORKDIR /app
 
 ADD Gemfile Gemfile.lock /app/
