Post-deployment checks for website availability - Check a list of URLs

[cristiroma]

In some scenarios the Drupal is failing after deployment with a strange error Entity type "" does not exist - which we cannot trace to a specific problem.

We can add additional task post-deployment to check a set of URL(s) and see if the website is up and running, i.e.

• home page
• user/login
• or another un-cached page which cannot be served from Varnish cache ...

[cristiroma]

The issue above is fixed in some projects like ECMWF by SSHing into the server and manually run drush cr from the command line (as users cannot log in via web interface).