63 / 68
63
REVISTA LOCAWEB
########
return (lookup);
}
# HIT FUNCTION
# ########################
###########################
#######
sub vcl_hit {
# IF THIS IS A PURGE
REQUEST THEN DO THE PURGE
# #######################
###########################
########
if (req.request ==
"PURGE") {
purge;
error 200 "Purged.";
}
return (deliver);
}
# MISS FUNCTION
# ########################
###########################
#######
sub vcl_miss {
if (req.request ==
"PURGE") {
purge;
error 200 "Purged.";
}
return (fetch);
}
# FETCH FUNCTION
# ########################
###########################
#######
sub vcl_fetch {
# I SET THE VARY TO
ACCEPT-ENCODING, THIS
OVERRIDES W3TC
# TENDANCY TO SET VARY
USER-AGENT. YOU MAY OR MAY
NOT WANT
# TO DO THIS
# #######################
###########################
########
set beresp.http.Vary =
"Accept-Encoding";
# IF NOT WP-ADMIN THEN
UNSET COOKIES AND SET THE
AMOUNT OF
# TIME THIS PAGE WILL STAY
CACHED (TTL)
# #######################
###########################
########
if (!(req.url ~ "wp-
(login|admin)") && !req.
http.cookie ~ "wordpress_
logged_in" ) {
unset beresp.http.set-
cookie;
set beresp.ttl = 96h;
}
if (beresp.ttl <= 0s ||
beresp.http.Set-Cookie
||
beresp.http.Vary ==
"*") {
set beresp.ttl = 120
s;
return (hit_for_pass);
}
return (deliver);
}
# DELIVER FUNCTION
# ########################
##########################
########
Sobre o autor
Homero Ottoni é programador e
sócio-proprietário da empresa Make
Media de desenvolvimento web.
LW
Página oficial do Varnish: a ideia dos desenvolvedores é tornar o carregamento de sites muito rápido
[
EXISTEM MUITAS FORMAS DE MODIFICAR
E MELHORAR AS RESPOSTAS AJUSTANDO
DIVERSOS ELEMENTOS DO VARNISH
]
sub vcl_deliver {
# IF THIS PAGE IS
ALREADY CACHED THEN RETURN
A 'HIT' TEXT
# IN THE HEADER (GREAT
FOR DEBUGGING)
# ######################
##########################
##########
if (obj.hits > 0) {
set resp.http.X-Cache
= "HIT";
# IF THIS IS A MISS
RETURN THAT IN THE HEADER
# ######################
##########################
##########
} else {
set resp.http.X-Cache
= "MISS";
}
}