187 lines
4 KiB
Text
187 lines
4 KiB
Text
# This is the VCL configuration Varnish will automatically append to your VCL
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# file during compilation/loading. See the vcl(7) man page for details on syntax
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# and semantics.
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# New users is recommended to use the example.vcl file as a starting point.
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vcl 4.0;
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backend foo { .host = "192.168.1.1"; }
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probe blatti { .url = "foo"; }
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probe fooy {
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.url = "beh";
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}
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acl foo {
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"192.168.1.1";
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"192.168.0.0"/24;
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! "192.168.0.1";
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}
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include "foo.vcl";
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import std;
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sub vcl_init {
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new b = director.foo();
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}
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sub vcl_recv {
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ban(req.url ~ "foo");
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rollback();
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}
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sub vcl_recv {
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if (req.method == "PRI") {
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/* We do not support SPDY or HTTP/2.0 */
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return (synth(405));
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}
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if (req.method != "GET" &&
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req.method != "HEAD" &&
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req.method != "PUT" &&
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req.method != "POST" &&
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req.method != "TRACE" &&
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req.method != "OPTIONS" &&
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req.method != "DELETE") {
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/* Non-RFC2616 or CONNECT which is weird. */
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return (pipe);
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}
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if (req.method != "GET" && req.method != "HEAD") {
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/* We only deal with GET and HEAD by default */
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return (pass);
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}
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if (req.http.Authorization || req.http.Cookie) {
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/* Not cacheable by default */
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return (pass);
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}
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return (hash);
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}
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sub vcl_pipe {
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# By default Connection: close is set on all piped requests, to stop
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# connection reuse from sending future requests directly to the
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# (potentially) wrong backend. If you do want this to happen, you can undo
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# it here.
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# unset bereq.http.connection;
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return (pipe);
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}
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sub vcl_pass {
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return (fetch);
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}
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sub vcl_hash {
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hash_data(req.url);
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if (req.http.host) {
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hash_data(req.http.host);
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} else {
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hash_data(server.ip);
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}
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return (lookup);
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}
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sub vcl_purge {
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return (synth(200, "Purged"));
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}
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sub vcl_hit {
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if (obj.ttl >= 0s) {
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// A pure unadultered hit, deliver it
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return (deliver);
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}
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if (obj.ttl + obj.grace > 0s) {
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// Object is in grace, deliver it
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// Automatically triggers a background fetch
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return (deliver);
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}
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// fetch & deliver once we get the result
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return (miss);
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}
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sub vcl_miss {
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return (fetch);
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}
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sub vcl_deliver {
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set resp.http.x-storage = storage.s0.free;
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return (deliver);
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}
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/*
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* We can come here "invisibly" with the following errors: 413, 417 & 503
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*/
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sub vcl_synth {
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set resp.http.Content-Type = "text/html; charset=utf-8";
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set resp.http.Retry-After = "5";
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synthetic( {"<!DOCTYPE html>
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<html>
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<head>
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<title>"} + resp.status + " " + resp.reason + {"</title>
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</head>
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<body>
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<h1>Error "} + resp.status + " " + resp.reason + {"</h1>
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<p>"} + resp.reason + {"</p>
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<h3>Guru Meditation:</h3>
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<p>XID: "} + req.xid + {"</p>
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<hr>
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<p>Varnish cache server</p>
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</body>
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</html>
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"} );
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return (deliver);
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}
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#######################################################################
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# Backend Fetch
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sub vcl_backend_fetch {
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return (fetch);
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}
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sub vcl_backend_response {
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if (beresp.ttl <= 0s ||
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beresp.http.Set-Cookie ||
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beresp.http.Surrogate-control ~ "no-store" ||
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(!beresp.http.Surrogate-Control &&
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beresp.http.Cache-Control ~ "no-cache|no-store|private") ||
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beresp.http.Vary == "*") {
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/*
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* Mark as "Hit-For-Pass" for the next 2 minutes
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*/
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set beresp.ttl = 120s;
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set beresp.uncacheable = true;
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}
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return (deliver);
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}
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sub vcl_backend_error {
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set beresp.http.Content-Type = "text/html; charset=utf-8";
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set beresp.http.Retry-After = "5";
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synthetic( {"<!DOCTYPE html>
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<html>
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<head>
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<title>"} + beresp.status + " " + beresp.reason + {"</title>
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</head>
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<body>
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<h1>Error "} + beresp.status + " " + beresp.reason + {"</h1>
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<p>"} + beresp.reason + {"</p>
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<h3>Guru Meditation:</h3>
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<p>XID: "} + bereq.xid + {"</p>
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<hr>
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<p>Varnish cache server</p>
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</body>
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</html>
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"} );
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return (deliver);
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}
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#######################################################################
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# Housekeeping
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sub vcl_init {
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}
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sub vcl_fini {
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return (ok);
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}
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