Created
January 18, 2017 15:03
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# | |
# 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; | |
acl invalidators { | |
"localhost"; | |
"192.168.1.0"/24; | |
"51.255.205.87"; | |
} | |
# Default backend definition. Set this to point to your content server. | |
backend default { | |
.host = "127.0.0.1"; | |
.port = "8080"; | |
} | |
sub vcl_pipe { | |
if (req.http.upgrade) { | |
set bereq.http.upgrade = req.http.upgrade; | |
} | |
} | |
sub vcl_recv { | |
if (req.method == "PURGE") { | |
if (!client.ip ~ invalidators) { | |
return (synth(405, "Not allowed")); | |
} | |
return (purge); | |
} | |
// Add a Surrogate-Capability header to announce ESI support. | |
set req.http.Surrogate-Capability = "abc=ESI/1.0"; | |
unset req.http.Forwarded; | |
if (req.http.X-Forwarded-Proto == "https" ) { | |
set req.http.X-Forwarded-Port = "443"; | |
} else { | |
set req.http.X-Forwarded-Port = "80"; | |
} | |
// Remove all cookies except the session ID. | |
if (req.http.Cookie) { | |
set req.http.Cookie = ";" + req.http.Cookie; | |
set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";"); | |
set req.http.Cookie = regsuball(req.http.Cookie, ";(SUPERDESKPUBLISHER)=", "; \1="); | |
set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", ""); | |
set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+|[; ]+$", ""); | |
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(disqus_unique)=[^;]*", ""); | |
if (req.http.Cookie == "") { | |
// If there are no more cookies, remove the header to get page cached. | |
unset req.http.Cookie; | |
} | |
} | |
# Only deal with "normal" types | |
if (req.method != "GET" && | |
req.method != "HEAD" && | |
req.method != "PUT" && | |
req.method != "POST" && | |
req.method != "TRACE" && | |
req.method != "OPTIONS" && | |
req.method != "PATCH" && | |
req.method != "DELETE") { | |
/* Non-RFC2616 or CONNECT which is weird. */ | |
return (pipe); | |
} | |
# Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html) | |
if (req.http.Upgrade ~ "(?i)websocket") { | |
return (pipe); | |
} | |
# Only cache GET or HEAD requests. This makes sure the POST requests are always passed. | |
if (req.method != "GET" && req.method != "HEAD") { | |
return (pass); | |
} | |
} | |
sub vcl_backend_response { | |
// Check for ESI acknowledgement and remove Surrogate-Control header | |
if (beresp.http.Surrogate-Control ~ "ESI/1.0") { | |
unset beresp.http.Surrogate-Control; | |
set beresp.do_esi = true; | |
} | |
} | |
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. | |
} |
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