From ce5276425f95cf27dfe84420678ef9071247b7b0 Mon Sep 17 00:00:00 2001
From: aglorei <aglorei88@gmail.com>
Date: Fri, 2 Feb 2018 08:24:56 +0000
Subject: [PATCH] Use new COPY --chown flag

Ever since moby/moby/pull/34263 became merged, there's no need to
shuffle users in order to get the correct ownership on non-root users
---
 Dockerfile | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index d44a34e..d91d196 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,17 +10,13 @@ RUN addgroup -S pokemaster && \
   -h /pokemon_battle \
   pokemaster
 
+USER pokemaster
 WORKDIR /pokemon_battle
 
-COPY Gemfile* /pokemon_battle/
-RUN chown -R pokemaster:pokemaster /pokemon_battle
-USER pokemaster
+COPY --chown=pokemaster:pokemaster Gemfile* /pokemon_battle/
 RUN bundle install --deployment
 
-USER root
-COPY . /pokemon_battle
-RUN chown -R pokemaster:pokemaster /pokemon_battle
+COPY --chown=pokemaster:pokemaster . /pokemon_battle
 
-USER pokemaster
 ENTRYPOINT ["bundle", "exec"]
 CMD ["rails", "server"]