This probably goes without saying... but make sure you check your osticket plugins when upgrading to php 8. Before upgrading, please remove the s3 storage plugin. Disabling it alone won't be enough. If you don't do this, you'll end up with a blank screen on upgrading. There is an upgraded version of the plugin available that does work with php 8. But you need to upgrade this plugin before upgrading the application.
Leaving this note here in the event anyone else runs into this error.
If you login to the container and tail the php logs in /var/log/php/error.log, you'll see this:
/var/log/php # tail -f error.log
[03-Aug-2022 17:15:00 UTC] PHP Fatal error: Declaration of S3StorageBackend::read($bytes = false) must be compatible with FileStorageBackend::read($amount = 0, $offset = 0) in phar:///data/upload/include/plugins/storage-s3.phar/storage.php on line 39
[03-Aug-2022 17:20:00 UTC] PHP Fatal error: Declaration of S3StorageBackend::read($bytes = false) must be compatible with FileStorageBackend::read($amount = 0, $offset = 0) in phar:///data/upload/include/plugins/storage-s3.phar/storage.php on line 39
This probably goes without saying... but make sure you check your osticket plugins when upgrading to php 8. Before upgrading, please remove the s3 storage plugin. Disabling it alone won't be enough. If you don't do this, you'll end up with a blank screen on upgrading. There is an upgraded version of the plugin available that does work with php 8. But you need to upgrade this plugin before upgrading the application.
Leaving this note here in the event anyone else runs into this error.
If you login to the container and tail the php logs in /var/log/php/error.log, you'll see this: