I am facing asset loading issue in Rails 5 application deployed on Heroku.
App Configuration is,
ruby => ‘2.3.1’
rails => '~> 5.0.1'
When image is stored on path,
app/assets/home/image1.jpg
I am accessing it in view as,
= image_tag('/assets/home/image1.jpg’)
which is working properly in Development ENV, but not in Production ENV.
As per Heroku log,
ActionController::RoutingError (No route matches [GET]
"/assets/home/image1.jpg")
If I am moving image directly to
app/assets/image1.jpg
then its working on Production ENV.
Please guide about it.
Thanks
It looks like you assets are not compile on heroku.
Follow below code:
config/environments/production.rb
config.assets.compile = true
then run commands:
RAILS_ENV=production rake assets:precompile
then push all compiled files with menifest file to heroku.
When i run the command rake assets:precomplie for production evn. then assets is updating on locally but did not update on cloudfront cdn files like (http:///assets/pages/!-cc5be2564b7a1c153e5f74c677795613.js). old assets is serving but not new updated assets serving. can you please provide any help to me that how can we update cdn assets.
Did you set the config.action_controller.asset_host directive to your CDN url?
Make sure the RAILS_ENV environment variable is properly set to production. You can also prepend it to the full command: RAILS_ENV=production bundle exec rake assets:precompile.
Within config/environments/production.rb you will see a setting asset_host that is responsible for prepending a domain onto all asset links created via the built in asset helpers
# config/environments/production.rb
config.action_controller.asset_host = "<YOUR DISTRIBUTION SUBDOMAIN>.cloudfront.net"
Once deployed, this application will now serve all assets through the CloudFront distribution.
For more details : https://devcenter.heroku.com/articles/using-amazon-cloudfront-cdn
One more thing:
If you want to precompile your assets in production mode then check in production.rb:
config.serve_static_assets = true
config.assets.digest = true
config.assets.compile = true # make it false if you don't want to let heroku precompile everytime
And then Run this below in your terminal:
RAILS_ENV=production bundle exec rake assets:precompile
then deploy I hope this helps you :)
I'm trying to deploy my rails app to heroku using this turtorial:
https://devcenter.heroku.com/articles/getting-started-with-rails4
So, I use rails 4.1.1 and ruby 2.1.1
My Gemfile has gem 'rails_12factor', group: :production inside.
My application.rb:
require File.expand_path('../boot', __FILE__)
require 'rails/all'
Bundler.require(*Rails.groups)
module Charticus
class Application Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
end
end
I created file public/assets/manifest.yml
But when I deploy app to heroku - it compile all my js-files files to application.js and all css-files application.css. And I can't see it on app.heroku.com using firebug.
What I need to do with my configurations to see all my js and css files on app.heroku.com ?
How disable assets precompiling and minification on heroku?
Help me please!
Thanks
lib/tasks/assets.rake
Rake::Task["assets:precompile"].clear
namespace :assets do
task 'precompile' do
puts "Not pre-compiling assets..."
end
end
You are done.
I compare config/environments/development.rb and config/environments/production.rb.
And make production.rb asset configs like in development.rb:
Comment this lines:
config.serve_static_assets = false
config.assets.js_compressor = :uglifier
config.assets.compile = false
config.assets.digest = true
Then:
Push my changes to git repo git push origin master
Push changes to heroku git push heroku master
Rails 4 applications have a manifest-*.json file, not a manifest.yml file. This file is typically generated when you run rake assets:precompile , how are you compiling your assets?
Regardless, you need a file public/assets/manifest-(fingerprint).json file
Fast forward to 2018, and you would need to add the following to config/initializers/production.rb:
config.assets.enabled = false
Then you'd need to customize Heroku's Ruby Buildpack to not run the assets:precompile rake task. I won't provide a link to such a buildpack because I won't support or warrant one, but its pretty easy to find it in lib/language_pack/ruby.rb and start removing relevant code.
You'd then have to configure your Heroku app to use your new forked Buildpack instead of the default one (e.g. using heroku buildpacks).
Thats the cleanest way to disable the asset pipeline in a Heroku app w/ Rails, without resorting to overriding Rails' built-in rake tasks.
Fast forward to 2021 and Rails 6.x, if you completely removed Webpacker and Sprockets/Asset Pipeline, replace the bin/yarn file content with something like:
#!/usr/bin/env ruby
puts 'Yarn not present, nothing to do.'
#danielricecodes's advice is probably still valid but way more invasive.
I'm trying to deploy a refinerycms app into Heroku. the deployment process goes smoothly but assets are not loading properly in front-end and back-end (see image attached).
1 - I have compiled my assets.
2 - I set config.assets.initialize_on_precompile = false
3 - Commited my changes.
and still have the same issue.
What am I missing?
Try adding any refinerycms assets you are missing to config.assets.precompile in production.rb file.
i.e.
config.assets.precompile += ['refinery/refinery.css']
Everything goes well in local machine with assets pipeline in Rails 4 and Ruby 2.0. But when deploying to heroku, it is shown that:
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
I, [2013-03-12T03:28:29.908234 #912] INFO -- : Writing /tmp/build_1n6yi8lwna3sj/public/assets/rails-2ee5a98f26fbf8c6c461127da73c47eb.png
I, [2013-03-12T03:28:29.914096 #912] INFO -- : Writing /tmp/build_1n6yi8lwna3sj/public/assets/trash-3c3c2861eca3747315d712bcfc182902.png
I, [2013-03-12T03:28:33.963234 #912] INFO -- : Writing /tmp/build_1n6yi8lwna3sj/public/assets/application-bf2525bd32aa2a7068dbcfaa591b3874.js
I, [2013-03-12T03:28:40.362850 #912] INFO -- : Writing /tmp/build_1n6yi8lwna3sj/public/assets/application-13374a65f29a3b4cea6f8da2816ce7ff.css
Asset precompilation completed (14.36s)
Heroku seems to compile files but put it in /tmp without any errors. My questions are:
How come Heroku compile assets files to /tmp?
My last solution was to run RAILS_ENV=production bundle exec rake assets:precompile locally, but this generated a manifest-xxxxxx.json in public/assets, rather than manifest.yml, so that heroku doesn't detect the JSON manifest file. I sorted it out by manually created a yml from the json file and heroku became happy. Has heroku's approach been outdated?
Heroku's asset plugins no longer work since Rails 4 does not support plugins. You need to use Heroku's asset gems instead. Place this in your Gemfile:
group :production do
gem 'rails_log_stdout', github: 'heroku/rails_log_stdout'
gem 'rails3_serve_static_assets', github: 'heroku/rails3_serve_static_assets'
end
Follow Heroku's guide on getting started with Rails 4.
Update (07/22/2013): Heroku now supplies a different gem to precompile assets.
group :production do
gem 'rails_12factor'
end
You need to config Rails to serve static assets in production: config/environments/production.rb
SampleApp::Application.configure do
.
.
.
config.serve_static_assets = true
.
.
.
end
UPDATE:
In Rails 4 is deprecated, and has been changed by:
config.serve_static_files = true
Since rails 4 replaced manifest.yml with manifest-(fingerprint).json, you'll want to enable static asset serving.
From Getting Started with Rails 4.x on Heroku:
gem 'rails_12factor', group: :production
then
bundle install
and, finally,
git push heroku
Fixed the issue for me. Hope this helps!
I run exactly into the same problem.
I set config.serve_static_assets = true in my environments/production.rb file until heroku wont't support the new manifest format.
So it is a temporal solution until heroku support will be added.
After hours of googling in which none of the guides on Heroku or the suggestions on StackOverFlow helped me, I finally ran into this blog post which offered this clue:
heroku labs:enable user-env-compile --app=YOUR_APP
Without this, the asset pipeline will always try to init the whole app and connect to the database (despite all the things you may have read that rails 4 now longer does this). This exposes your Heroku configuration to Rails so it can boot up successfully and run rake tasks like assets:precompile.
I needed to use this gem:
gem 'rails_12factor', group: :production #need this for rails 4 assets on heroku
And in /config/environments/production.rb I needed to set:
config.assets.compile = true
My understanding is that the rails_12_factor gem sets config.serve_static_assets = true, amongst other things.
In my case, assets compiled following the instructions above but it wasn't picking the bootstrap glyphicons 'fontawesome-webfont' so this worked for me finally after wasting so many hours researching.
Gem file
gem 'rails_12factor', group: :production
bundle install
config/application.rb
config.assets.precompile += %w(*.png *.jpg *.jpeg *.gif,
"fontawesome-webfont.ttf",
"fontawesome-webfont.eot",
"fontawesome-webfont.svg",
"fontawesome-webfont.woff")
config.assets.precompile << Proc.new do |path|
if path =~ /\.(css|js)\z/
full_path = Rails.application.assets.resolve(path).to_path
app_assets_path = Rails.root.join('app', 'assets').to_path
if full_path.starts_with? app_assets_path
puts "including asset: " + full_path
true
else
puts "excluding asset: " + full_path
false
end
else
false
end
end
environment/production.rb
config.serve_static_assets = true
Then finally, I ran
rake assets:precompile RAILS_ENV=production and pushed it to heroku and that worked.
This was an issue with the Heroku Ruby Buildpack, but an update was deployed today (2013-05-21). Please try it out and let us know.
To answer your questions:
#1) This is sprockets output; things are compiled to /tmp and then moved (See here in Sprockets). To my knowledge this has always been done this way, but it wasn't until Sprockets version was updated in Rails that we got this new debug-type output.
#2) Previously assets:precompile genereated a manifest.json file, but now in Rails 4 the manifest file has a fingerprint in it, which wasn't detected previously. This was fixed with #74.
I added this to the top of one of my css.scss files in the assets/stylesheets/ folder.
#import "font-awesome";
then ran..
rake assets:clean
and...
rake assets:precompile RAILS_ENV=production
In Rails 4.2.4 your production.rb has the line:
config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
That means, gem 'rails_12factor', group: :production doesn`t need to change it to true, as it can be set through the heroku environment variables. You also will get a warning if you remove the rails_12factor gem.
If you have problems with assets, login to the heroku console heroku run rails console and find out the asset path for a file puts helper.asset_path("application.js") .
One strange behaviour I noticed between development and production, when the file ending is not provided:
With a image /assets/images/image_01.jpg the following output from asset_pathsdiffers:
Development:
development > puts helper.asset_path('profile_01')
=> /assets/profile_01-bbd16aac5ef1d295411af44c103fcc631ab90ee94957414d4c01c3aed1055714.jpg
development > puts helper.asset_path('profile_01.jpg')
=> /assets/profile_01-bbd16aac5ef1d295411af44c103fcc631ab90ee94957414d4c01c3aed1055714.jpg
Production:
development > puts helper.asset_path('profile_01')
=> /profile_01
development > puts helper.asset_path('profile_01.jpg')
=> /assets/profile_01-bbd16aac5ef1d295411af44c103fcc631ab90ee94957414d4c01c3aed1055714.jpg
You do not have to run RAILS_ENV=production rake assets:precompile, heroku does this for you during deploy. Also you do not have to precompile the assets in development and push them to heroku.
Apart from ensuring you have the 'rails_12factor' gem installed the only thing you need to do is this.
# config/application.rb
config.assets.paths << Rails.root.join('vendor', 'assets')
It seems that although Rails knows exactly what it wants, Heroku needs reminding to include the assets folder as part of the assets paths.
Use Image Extensions
I had this same issue, but for a different reason.
Instead of
<%= asset_path 'facebook-link' %>
Use:
<%= asset_path 'facebook-link.png' %>
While the first one worked locally, when I pushed to Heroku my images were breaking and I had no clue why. Using the full file extension fixed the problem :)
Add this gem gem 'rails_serve_static_assets'
https://github.com/heroku/rails_serve_static_assets
If you are using controller specific assets as in:
<%= javascript_include_tag params[:controller] %> or <%= javascript_include_tag params[:controller] %>
Then in production you will need to explicitly precompile those (in development rails compiles files on the fly).
See official Rails guide here: http://guides.rubyonrails.org/asset_pipeline.html#controller-specific-assets
To precompile as explained in the guides (here: http://guides.rubyonrails.org/asset_pipeline.html#precompiling-assets) you will need to add the following to the config/application.rb
# config/application.rb
config.assets.precompile << Proc.new do |path|
if path =~ /\.(css|js)\z/
full_path = Rails.application.assets.resolve(path).to_path
app_assets_path = Rails.root.join('app', 'assets').to_path
if full_path.starts_with? app_assets_path
puts "including asset: " + full_path
true
else
puts "excluding asset: " + full_path
false
end
else
false
end
end
I figure I'll add this as an answer since this question is linked from the Heroku Support page if you search for "assets".
This is mostly for people who are updating their app to Rails 4, but after going through this - and many other SO posts - what finally got me was changing the following in production.rb:
config.action_dispatch.x_sendfile_header = "X-Sendfile"
To:
config.action_dispatch.x_sendfile_header = nil
I hadn't caught this when I upgraded and as usual this took me forever to figure out. Hopefully it helps someone else! Shout out to PatrickEm who asked/answered the same in his question.
This may not answer the original question's root cause, But I was having a similar symptom with a different root cause.
Pre-compilation of a JPEG files changes the file extension to JPG, meaning that asset_path("my_image.jpeg") and asset_path("my_image") didn't work. Remove the "e" from JPEG and voila, it works.
Others have described the same problem here https://blazarblogs.wordpress.com/2016/04/06/rails-force-to-precompile-jpeg-to-jpg/
Is this a bug? Or desired behaviour? And also weird that it only doesn't work in my Heroku-hosted production environment. Maybe they have some sort of configuration.