need assets inside of docker too

have to run in prod mode to get minification

.node-version

@@ -1 +1 @@
-6.1.0
+v6.1.0

Dockerfile

@@ -33,6 +33,9 @@ COPY config /app/config
 COPY app /app/app
 COPY lib /app/lib
 
+# Assets
+RUN echo "takes 5 minute" && RAILS_ENV=production PRECOMPILE=1 bundle exec rake assets:precompile
+
 EXPOSE 9080
 
 CMD ["bundle", "exec", "puma", "-C", "./config/puma.rb"]

config/environments/development.rb

@@ -39,6 +39,9 @@
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
+  # docker ships with precompiled assets, but we want dynamic assets in development
+  config.assets.prefix = "/assets_dev"
+
   BetterErrors::Middleware.allow_ip! ENV['TRUSTED_IP'] if ENV['TRUSTED_IP']
 
   # Use an evented file watcher to asynchronously detect changes in source code,

config/environments/production.rb

@@ -17,9 +17,9 @@
 
   config.public_file_server.enabled = true
 
-  # Compress JavaScripts and CSS.
+  # Compress JavaScripts and CSS ... about 3 minutes each
   config.assets.js_compressor = :uglifier
-  # config.assets.css_compressor = :sass
+  config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false