Mount assets on workers

[toontoet]

Description of the issue

Sending PDF mails didn't work using the default compose.yml configuration. See: https://github.com/frappe/frappe/issues/14177

That was caused by the fact that the assets volume was not shared with the worker services.

Context information (for bug reports)

Steps to reproduce the issue

1. Start a Frappe config using the default compose.yml
2. Set-up e-mail domain and default e-mail account configuration
3. Send a DocType using e-mail

Observed result

Errors appear in frappe error logs about missing asset (website.bundle.css). Checked inside the conainer and the sites/assets folder was empty Mail was not sent

Expected result

No errors, Mail sent

Solution

Mount the assets on the workers

x-backend-defaults: &backend_defaults
  <<: *depends_on_configurator
  volumes:
    - sites:/home/frappe/frappe-bench/sites
    - assets:/home/frappe/frappe-bench/sites/assets

[revant]

please send a PR.

[revant]

note: It also needs to be changed for helm chart.

I'll change it some time, no ETA.