Separate chown command in Dockerfile. Use tootsuite/mastodon image (#6662)

Fix #6605

Dockerfile

 FROM ruby:2.5.0-alpine3.7
 
 LABEL maintainer="https://github.com/tootsuite/mastodon" \
-      description="A GNU Social-compatible microblogging server"
+      description="Your self-hosted, globally interconnected microblogging community"
 
 ARG UID=991
 ARG GID=991
@@ -73,7 +73,9 @@ RUN addgroup -g ${GID} mastodon && adduser -h /mastodon -s /bin/sh -D -G mastodo
  && mkdir -p /mastodon/public/system /mastodon/public/assets /mastodon/public/packs \
  && chown -R mastodon:mastodon /mastodon/public
 
-COPY --chown=mastodon:mastodon . /mastodon
+COPY . /mastodon
+
+RUN chown -R mastodon:mastodon /mastodon
 
 VOLUME /mastodon/public/system /mastodon/public/assets /mastodon/public/packs
 

docker-compose.yml

@@ -32,7 +32,7 @@ services:
 
   web:
     build: .
-    image: gargron/mastodon
+    image: tootsuite/mastodon
     restart: always
     env_file: .env.production
     command: bundle exec rails s -p 3000 -b '0.0.0.0'
@@ -52,7 +52,7 @@ services:
 
   streaming:
     build: .
-    image: gargron/mastodon
+    image: tootsuite/mastodon
     restart: always
     env_file: .env.production
     command: yarn start
@@ -67,7 +67,7 @@ services:
 
   sidekiq:
     build: .
-    image: gargron/mastodon
+    image: tootsuite/mastodon
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq -q default -q mailers -q pull -q push