Debug latest MySSC Drupal site deployment

[patheard]

We're getting failures during the simplesaml configuration because of the following two modules:

• Lullabot/block_dashboard
• Lullabot/entity_browser_block_layout

Errors occur when importing our exported simplesaml config:

./drush cim --partial --source=/path/to/config/simplesamlphp_auth -y

Error

[error]  Drupal\Core\Config\ConfigImporterException: There were errors validating the config synchronization.
Unable to install the <em class="placeholder">block_dashboard</em> module since it does not exist.
Unable to install the <em class="placeholder">entity_browser_block_layout</em> module since it does not exist. in Drupal\Core\Config\ConfigImporter->validate() (line 737 of /path/to/drupal/web/core/lib/Drupal/Core/Config/ConfigImporter.php). 

In ConfigImportCommands.php line 261:

  The import failed due to the following reasons:                                                                 
  Unable to install the <em class="placeholder">block_dashboard</em> module since it does not exist.              
  Unable to install the <em class="placeholder">entity_browser_block_layout</em> module since it does not exist. 

[patheard]

Deployment has been fixed:

• New version of the site code released without missing modules.
• Add a missing Drupal hash_salt setting (this was previously provided by the code).
• Remove the addition of the drupal/simplesamlphp_auth module (this is now included in the latest code).
• Increase the proxy buffer size setting for our Nginx web server. The response size increased with the code, which overflowed the default Nginx proxy buffer settings.