Varnish Exemple for CACHE and Optimisation

Varnish Optimisation cache

# # This is an example VCL file for Varnish. # # It does not do anything by default, delegating control to the # builtin VCL. The builtin VCL is called when there is no explicit # return statement. # # See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/ # and https://www.varnish-cache.org/trac/wiki/VCLExamples for more examples. # Marker to tell the VCL compiler that this VCL has been adapted to the # new 4.0 format. vcl 4.0; # Default backend definition. Set this to point to your content server. backend default { .host = "127.0.0.1"; .port = "8080"; } sub vcl_recv { # Happens before we check if we have this in cache already. # # Typically you clean up the request here, removing cookies you don't need, # rewriting the request, etc. # Happens before we check if we have this in cache already. # # Typically you clean up the request here, removing cookies you don't need, # rewriting the request, etc. # Properly handle different encoding types if (req.http.Accept-Encoding) { if (req.url ~ "\.(jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|woff)$") { # No point in compressing these unset req.http.Accept-Encoding; } elsif (req.http.Accept-Encoding ~ "gzip") { set req.http.Accept-Encoding = "gzip"; } elsif (req.http.Accept-Encoding ~ "deflate") { set req.http.Accept-Encoding = "deflate"; } else { # unknown algorithm (aka crappy browser) unset req.http.Accept-Encoding; } } # Cache files with these extensions if (req.url ~ "\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|woff)$") { unset req.http.cookie; return (hash); } # Dont cache anything thats on the blog page or thats a POST request if (req.url ~ "^/blog" || req.method == "POST") { return (pass); } # This is Laravel specific, we have session-monster which sets a no-session header if we dont really need the set session cookie. # Check for this and unset the cookies if not required # Except if its a POST request if (req.http.X-No-Session ~ "yeah" && req.method != "POST") { unset req.http.cookie; } return (hash); } sub vcl_backend_response { # Happens after we have read the response headers from the backend. # # Here you clean the response headers, removing silly Set-Cookie headers # and other mistakes your backend does. # set beresp.ttl = 30s; set beresp.grace = 24h; if (beresp.ttl < 120s) { unset beresp.http.cookie; unset beresp.http.Set-Cookie; set beresp.ttl = 120s; unset beresp.http.Cache-Control; } } sub vcl_deliver { # Happens when we have all the pieces we need, and are about to send the # response to the client. # # You can do accounting or modifying the final object here. }