워드프레스 Varnish 4.0 default.vcl

구글링을 해보면 워드프레스 최적화를 위한 varnish 세팅이 많이 있는데 대부분 3.0버전 대의 vcl이라서 varnish 4.0 버전에서는 에러가 난다. 최근에 찾은 varnish 4.0용 가장 핫한 default.vcl 세팅이다.

# This is my VCL file for Varnish 4.0.2 & WordPress 4.0
#
# ASSUME The builtin VCL is called afterwards.
#

# Specify VCL new 4.0 format.
vcl 4.0;

# Imports
import std;

# Default backend definition. Set this to point to your content server.
backend default {
.host = “127.0.0.1”;
##.port = “8080”;
.port = “8888”;
}
acl aclPurge {
# For now, I’ll only allow purges coming from localhost
“127.0.0.1”;
“localhost”;
}
acl aclBanned {
# Private Networks 192.168.*.* [subnet mask /16 = netmask 255.255.0.0 = 16 meaningful bits left to right]
“192.168.0.0”/16;
# some specific malicious ip addresses
“81.82.83.84”;
“31.5.89.4”;
}

sub vcl_recv {
### DOC
# https://www.varnish-cache.org/docs/4.0/users-guide/vcl-built-in-subs.html#vcl-recv
# http://www.mediawiki.org/wiki/Manual:Varnish_caching#Configuring_Varnish_4.x
# – The builtin VCL is always called afterwards.
# – Happens before we check if we have this in cache already.
# – Typically you clean up the request here, adjusting headers, managing cookies, rewriting the request, etc.

### vmod std:
# – std.log(str): Logs a string to the shared memory log, using VSL tag VCL_Log
# – varnishlog -i VCL_Log

###
### Allow purging
###
# Tip: it only purges the current cache entry (to purge the whole cache: do service restart instead)
if (req.method == “PURGE”) {
if (!client.ip ~ aclPurge) {
return (synth(405, “This IP is not allowed to send PURGE requests.”));
}
return (purge);
}

###
### Banning Logic (replacing the WordPress Plugin WP-Ban)
###

# IP Addresses 192.168.*.
if (client.ip ~ aclBanned) {
return (synth(403, “Forbidden”));
}

###
### Do not Cache: special cases
###

### Do not Authorized requests.
if (req.http.Authorization) {
return(pass); // DO NOT CACHE
}

### Pass any requests with the “If-None-Match” header directly.
if (req.http.If-None-Match) {
return(pass); // DO NOT CACHE
}

### Do not cache AJAX requests.
if (req.http.X-Requested-With == “XMLHttpRequest”) {
return(pass); // DO NOT CACHE
}

### Only cache GET or HEAD requests. This makes sure the POST (and OPTIONS) requests are always passed.
if (req.method != “GET” && req.method != “HEAD”) {
return (pass); // DO NOT CACHE
}
###
### Request URL
###

# Apache: disable caching for the Apache2 server status page
if (req.url ~ “^/server-status”) {
# do not use the cache
return(pass); // DO NOT CACHE
}

### Static files: Do not cache PDF, XML, … files (=static & huge and no use caching them – in all Vary: variations!)
if (req.url ~ “\.(doc|mp3|pdf|tif|tiff|xml)(\?.*|)$”) {
return(pass); // DO NOT CACHE
}

# WordPress: disable caching for some parts of the backend (mostly admin stuff)
# and WP search results.
if (
req.url ~ “^/wp-(login|admin)” || req.url ~ “/wp-cron.php” || req.url ~ “/wp-content/uploads/”
|| req.url ~ “preview=true” || req.url ~ “xmlrpc.php” || req.url ~ “\?s=”
) {
# do not use the cache
return(pass); // DO NOT CACHE
}

# Development: my /tryme/ folder with test scripts
if (req.url ~ “^/tryme/”) {
# do not use the cache
return(pass); // DO NOT CACHE
}

# WooCommerce
if (req.url ~ “\?add-to-cart=”) {
# do not use the cache
return(pass); // DO NOT CACHE
}

# Kick DFind requests
if (req.url ~ “^/w00tw00t”) {
return (synth(404, “Not Found”));
}
###
### http header Cookie
### Remove some cookies (if found).
###
# https://www.varnish-cache.org/docs/4.0/users-guide/increasing-your-hitrate.html#cookies

# Unset the header for static files
if (req.url ~ “\.(css|flv|gif|htm|html|ico|jpeg|jpg|js|mp3|mp4|pdf|png|swf|tif|tiff|xml)(\?.*|)$”) {
unset req.http.Cookie;
}

if (req.http.cookie) {
# Google Analytics
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(__utm[a-z]+)=([^;]*)”, “”);
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(_ga)=([^;]*)”, “”);

# Quant Capital
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(__qc[a-z]+)=([^;]*)”, “”);

# __gad __gads
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(__gad[a-z]+)=([^;]*)”, “”);

# Google Cookie consent (client javascript cookie)
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(displayCookieConsent)=([^;]*)”, “”);

# Other known Cookies: remove them (if found).
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(__CT_Data)=([^;]*)”, “”);
set req.http.Cookie = regsuball( req.http.Cookie, “(^|;\s*)(WRIgnore|WRUID)=([^;]*)”, “”);
# PostAction: Remove (once and if found) a “;” prefix followed by 0..n whitespaces.
# INFO \s* = 0..n whitespace characters
set req.http.Cookie = regsub( req.http.Cookie, “^;\s*”, “” );

# PostAction: Unset the header if it is empty or 0..n whitespaces.
if ( req.http.cookie ~ “^\s*$” ) {
unset req.http.Cookie;
}
}
###
### Normalize the Accept-Language header
### We do not need a cache for each language-country combination! Just keep en-* and nl-* for future use.
### https://www.varnish-cache.org/docs/4.0/users-guide/increasing-your-hitrate.html#http-vary
if (req.http.Accept-Language) {
if (req.http.Accept-Language ~ “^en”) {
set req.http.Accept-Language = “en”;
} elsif (req.http.Accept-Language ~ “^nl”) {
set req.http.Accept-Language = “nl”;
} else {
# Unknown language. Set it to English.
set req.http.Accept-Language = “en”;
}
}
###
### Varnish v4: vcl_recv must now return hash instead of lookup
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.

# main variable = beresp.
}

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.

# main variable = resp.

set resp.http.Server = “mine”;
set resp.http.X-Powered-By = “electricity”;
}

sub vcl_pipe {
# https://www.varnish-software.com/blog/using-pipe-varnish
# Note that only the first request to the backend will have X-Forwarded-For set.
# If you use X-Forwarded-For and want to have it set for all requests,
# then make sure to use this: set req.http.connection = “close”;
# (This code is not necessary if you do not do any request rewriting.)

set req.http.connection = “close”;
}
###EndOf: .vcl

원문출처 : https://dl.dropboxusercontent.com/u/5629939/temp/varnish402-wordpress-example.vcl