Server Bundle getting deleted on deployment

[justin808]

Problem: Your (non-hashed, not-in-manifest) server bundle is deleted during deployment.

If you've seen the "Removed " in your deployment logs:

       Asset precompilation completed (314.62s)
       Cleaning assets
       Running: rake assets:clean
       RAILS_ENV=staging environment is not defined in config/webpacker.yml, falling back to production environment
       Removed /tmp/build_a0d4d074503e2eda0ed90677b4aceb17/public/webpack/production/server-bundle.js
-----> Detecting rails configuration

and you got an error like this in your error tracking system:

ActionView::Template::Error
No such file or directory @ rb_sysopen - /app/public/webpack/production/server-bundle.js

The fix is to ensure that your server bundle is hashed.

I'll have some details on this issue over the coming days.

Related links:

• https://github.com/rails/webpacker/blob/master/lib/tasks/webpacker/clean.rake#L16
• Make clean task simpler and fix issues rails/webpacker#2389
• Improve webpacker:clear task rails/webpacker#2443
• https://github.com/rails/webpacker/blob/master/lib/webpacker/commands.rb#L18

[justin808]

This was fixed on the master branch for Webpacker:

rails/webpacker#2443