Invalid drush.yaml

Hi All,
I’m running a Drupal 8 project, standard composer setup. I have few Drush commands running on the deployment hook and they were working fine for a long time, after adding varnish cache, I start getting the r=error below:

Executing deploy hook for application APP_NAME
Failed to find a site URL
The file exists but may be invalid: /app/.drush/drush.yml

Is that a side effect of using varnish, Is there a way around that.


That doesn’t sound like usual behavior. You’re best off filing a support ticket and letting them take a look.