Would you mind to try Nginx caching in Plesk Onyx 17.8 Preview?
This would be very helpful to get your experienced feedback here http://www.surveygizmo.com/s3/4165754/Plesk-17-8-PreviewAnonymous commented
Also note Having Varnish hits, it doesn't hit your app at all. Something like redis etc is still slow.
Still having both Varnish, redis can be optional.Anonymous commented
Edge sides include ESI can be achieved via Varnish cache sitting between nginx and apache.
Thus nginx will terminate ssl, full cached page if found on Varnish will be served directly. Cache miss will be serviced by apache.
This cannot be achieved via nginx + apache.
This test case is important for many business cases like magento, high traffic full page cached sites etc. Currently only Centos webpanel supports it and cpanel has a third party addon.
Also Varnish has VMODS and some are pretty essential like say, Geoip module.
Plesk dev can test Varnish , and can think to provide is as optional. Varnish is not everyone's cup of tea, still It does have strong business case like magento. It's essential for many clients now, thus having it optional does seems very useful. As for support part, plesk should focus on just the installation and ease to use it and basic funtion. Configuration support is out of scope and community or Internet can provide help.
Thank you for your input! We will consider this functionality in upcoming releases if it will be popular.
Everyone, please continue voting for this feature if you consider it important.