I am trying to set
$cookie_domain in my settings.php within Drupal 8.
In Drupal 7, I add this in settings.php to set it up, but I am not sure how to do it in Drupal 8:
$cookie_domain = ".domain.com";
Thanks a lot
This is a container parameter now.
Put this in services.yml or another service definition YAML file:
Since it is in a yaml file, it can't easily be dynamic, one option you have is having multiple yml files, and you dynamically add the one for the right environment, or you have a services.local.yml, just like settings.local.php that you have on each environment and not in git.
Another option for multiple environments rather than keeping multiple files is to use environment variables.
Then use that environment variable in your services.yml file (or other YAML file) like this: