default.vcl.j2

#
# --- THIS FILE IS AUTOMATICALLY PROVISIONED THROUGH ANSIBLE ---
#

###########
# Backend #
###########
backend default {
  {{ conf_varnish_backend_default }}}

#############
# ACL PURGE #
#############
acl purge {
  {{ conf_varnish_acl_purge }}}

  #
  # X-Forwarded-For
  #
  # See: https://www.varnish-cache.org/docs/2.1/faq/http.html
  #      % varnishlog | grep X-Forwarded-For
  #
  # We can have two scenarios actually:
  #
  #   REQUEST -> Varnish -> Apache2               (Varnish inserts X-Forwarded-For)
  #   REQUEST -> HAPROXY -> Varnish -> Apache2    (HAPROXY inserts X-Forwarded-For)
  #
  # In case Varnish is first in the chain, insert own X-Forwarded-For.
  # Boolean "conf_lbtier_enable", defined per node, tells us if we use HAPROXY.
  #

################
# sub vcl_recv #
################
sub vcl_hash {
  hash_data(req.http.host);
  hash_data(req.url);
  hash_data(req.http.X-Forwarded-Proto);
  return(hash);
}

################
# sub vcl_recv #
################
sub vcl_recv {
  {{ conf_varnish_vcl_recv }}}

#################
# sub vcl_fetch #
#################
sub vcl_fetch {
  #set obj.grace = 5m;
  set beresp.grace = 2m;
}

###############
# sub vcl_hit #
###############
sub vcl_hit {
  if (req.request == "PURGE") {
    purge;
    error 200 "Purged.";
  }
}

################
# sub vcl_miss #
################
sub vcl_miss {
  if (req.request == "PURGE") {
    purge;
    error 200 "Not in cache.";
  }
}

################
# sub vcl_pass #
################
sub vcl_pass {
    if (req.request == "PURGE") {
        error 502 "PURGE on a passed object";
    }
}