I think as long as you allowed it in ip_allow.config properly, "BAN" method works.
I think last time the community discussed about this feature, the conclusion is that you can probably achieve similar effect with the regex_revalidate plugin - https://docs.trafficserver.apache.org/en/latest/admin-guide/plugins/regex_revalidate.en.html or the purge remap plugin - https://docs.trafficserver.apache.org/en/latest/admin-guide/plugins/remap_purge.en.html I think you should be able to implement the mechanism you mentioned using lua. Although i am not too sure why you want to update cache.config. Since i thought the "ban" is just to invalidate the cache entry once and not indefinitely. Thanks kit On Thu, Oct 11, 2018 at 9:35 AM Vaughan, Wendre < [email protected]> wrote: > I have ATS 7.1 setup as a reverse proxy for a Drupal-Managed Website. My > Drupal Development Team wants to use a feature called Cache Tags ( > https://www.drupal.org/docs/8/api/cache-api/cache-tags-varnish ) that is > designed specifically for Varnish. > > > > The Drupal system would send a Request with method ‘BAN’ to the ATS > servers expecting the ATS servers to read the X-Cache-Tags headers (a list > of pages to not cache) and have ATS do the following: > > > > 1. Purge the ATS cache of any of the items in the X-Cache-Tags list > 2. Dynamically update a list of ‘Never Cache’ to the items in the > X-Cache-Tag list. > 3. Remove these four headers from origin responses before sending the > response to the requestor: X-Url, X-Host, X-Cache-Tags, X-Cache-Contexts > (can do this with the headers plugin) > > > > So I have a few questions. Can I setup a method called ‘BAN’ on the ATS > servers? I think I can use the headers plugin and possibly a lua script to > do the purging and update the cache.config file. If I can get the ‘BAN’ > method to be accepted by ATS. > > > > I am pretty new to extending ATS with lua. Any help is appreciated. > > > > Wendre Vaughan > > Senior Software Engineer, Operations | Finance & Information Technology | > Sound Transit > > P: 206.903.7270 | F: 206.398.5223 | e: [email protected] > > > > Connect with us > > https://www.facebook.com/SoundTransit | https://twitter.com/SoundTransit > > > > [image: id:[email protected]] > > >
