Hello Maxim! On Nov 23, 2017 17:55, "Maxim Dounin" <mdou...@mdounin.ru> wrote:
Hello! On Thu, Nov 23, 2017 at 09:00:52AM -0600, Andrei wrote: > Hi all, > > I've been using Varnish for 4 years now, but quite frankly I'm tired of > using it for HTTP traffic and Nginx for SSL offloading when Nginx can just > handle it all. One of the main issues I'm running into with the transition > is related to cache purging, and setting custom expiry TTL's per > zone/domain. My questions are: > > - Does anyone have any recent working documentation on supported > modules/Lua scripts which can achieve wildcard purges as well as specific > URL purges? Cache purging is available in nginx-plus, see http://nginx.org/r/proxy_cache_purge. I'm aware of the paid version, but I don't have a budget for it yet, and quite frankly this should be a core feature for any caching service. Are there no viable options for the community release? It's a rather pertinent feature to have in my transition > - How should I go about defining custom cache TTL's for: frontpage, > dynamic, and static content requests? Currently I have Varnish configured > to set the ttl's based on request headers which are added in the config > with regex matches against the host being accessed. Normal nginx approach is to configure distinct server{} and location{} blocks for different content, with appropriate cache validity times. For example: server { listen 80; server_name foo.example.com; location / { proxy_pass http://backend; proxy_cache one; proxy_cache_valid 200 5m; } location /static/ { proxy_pass http://backend; proxy_cache one; proxy_cache_valid 200 24h; } } Note well that by default nginx respects what is returned by the backend in various response headers, and proxy_cache_valid time only applies if there are no explicit cache validity time set, see http://nginx.org/r/proxy_ignore_headers. So to override the ttls set by the backend, I would have to use proxy_ignore_headers for all headers which can directly affect the intended TTL? Thank you for your time! -- Maxim Dounin http://mdounin.ru/ _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
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