# Configuration file optimized for squid 2.7+.  It is untested with squid 3.x.
# See http://www.squid-cache.org/Doc/config/ for details

# Assumes a single backend behind Squid (which could be a single
# zope instance or a load balancer serving multiple zeo clients).
# To change this to support multiple backends, see the docs linked above


visible_hostname ${squid-config:hostname}
http_port ${squid-config:bind} vhost defaultsite=${squid-config:hostname}
pid_filename ${squid-config:pid}

# You may need to set the following if you need to start Squid as root.
# This might be the case if you need to bind to port 80.
#cache_effective_user zope
#cache_effective_group zope

## Log files (http://wiki.squid-cache.org/SquidFaq/SquidLogs)
cache_log ${squid-config:log}
cache_store_log none
access_log none

# Cache storage
# (for a faster cache storage option see,
#  http://wiki.squid-cache.org/Features/CyclicObjectStorageSystem)
cache_dir ufs ${squid-config:cache-dir} ${squid-config:cache-size} 16 256
cache_mem 256 MB
maximum_object_size 5 MB
maximum_object_size_in_memory 1 MB

# Purge access - zope servers can purge but nobody else
# (works best if Zope and Apache are on different IPs
# or if Apache is configured to reject PURGE requests)
acl zope_servers src ${squid-config:backend-host}
acl purge method PURGE
http_access allow zope_servers purge
http_access deny purge

# Deny caching of POST requests
acl post_requests method POST
cache deny post_requests

# Cache Peers
cache_peer ${squid-config:backend-host} parent ${squid-config:backend-port} 0 no-query originserver login=PASS name=peer_0

# Cache Peer Access
acl all src all
acl path_0 urlpath_regex /VirtualHostBase
http_access allow path_0
cache_peer_access peer_0 allow path_0
cache_peer_access peer_0 deny all