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Varnish VCL for CVMFS (CernVM-FS)
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# | |
# CVMFS VCL (v1.3) | |
# | |
# Tested with CVMFS 2.11 and Varnish Cache 6/7 | |
# | |
vcl 4.1; | |
backend cvmfs_origin { | |
.host = "hostname.org"; | |
.port = "80"; | |
} | |
sub vcl_recv | |
{ | |
unset req.http.CVMFS-Mutable; | |
unset req.http.CVMFS-Immutable; | |
unset req.http.CVMFS-Metadata; | |
unset req.http.CVMFS-Published; | |
unset req.http.CVMFS-Whitelist; | |
unset req.http.CVMFS-Dirtab; | |
unset req.http.CVMFS-Reflog; | |
unset req.http.CVMFS-Data; | |
unset req.http.CVMFS-Catalog; | |
unset req.http.CVMFS-History; | |
unset req.http.CVMFS-Partial; | |
unset req.http.CVMFS-Temporary; | |
unset req.http.CVMFS-Certificate; | |
unset req.http.CVMFS-Metainfo; | |
unset req.http.CVMFS-External; | |
set req.http.CVMFS-Status = "NONE"; | |
# CVMFS objects | |
if (req.url ~ "\/\.cvmfs[0-9a-z]*$") { | |
set req.http.CVMFS-Mutable = "true"; | |
set req.http.CVMFS-Metadata = "true"; | |
if (req.url ~ "\/\.cvmfspublished$") { | |
set req.http.CVMFS-Published = "true"; | |
} else if (req.url ~ "\/\.cvmfswhitelist$") { | |
set req.http.CVMFS-Whitelist = "true"; | |
} else if (req.url ~ "\/\.cvmfsdirtab$") { | |
set req.http.CVMFS-Dirtab = "true"; | |
} else if (req.url ~ "\/\.cvmfsreflog$") { | |
set req.http.CVMFS-Reflog = "true"; | |
} | |
} else if (req.url ~ "\/data\/[0-9a-z]{2}\/[a-z0-9]{38}[A-Z]?$") { | |
set req.http.CVMFS-Immutable = "true"; | |
set req.http.CVMFS-Data = "true"; | |
if (req.url ~ "[A-Z]$") { | |
set req.http.CVMFS-Metadata = "true"; | |
if (req.url ~ "C$") { | |
set req.http.CVMFS-Catalog = "true"; | |
} else if (req.url ~ "H$") { | |
set req.http.CVMFS-History = "true"; | |
} else if (req.url ~ "P$") { | |
set req.http.CVMFS-Partial = "true"; | |
} else if (req.url ~ "T$") { | |
set req.http.CVMFS-Temporary = "true"; | |
} else if (req.url ~ "X$") { | |
set req.http.CVMFS-Certificate = "true"; | |
} else if (req.url ~ "M$") { | |
set req.http.CVMFS-Metainfo = "true"; | |
} | |
} | |
} | |
if (!req.http.CVMFS-Mutable && !req.http.CVMFS-Immutable) { | |
set req.http.CVMFS-External = "true"; | |
} | |
if (req.http.Cache-Control ~ "no-cache") { | |
return (pass); | |
} | |
if (req.method == "GET" || req.method == "HEAD") { | |
return (hash); | |
} | |
return (pass); | |
} | |
sub vcl_hash { | |
hash_data(req.url); | |
return (lookup); | |
} | |
sub vcl_hit { | |
set req.http.CVMFS-Status = "HIT"; | |
} | |
sub vcl_miss { | |
set req.http.CVMFS-Status = "MISS"; | |
} | |
sub vcl_pass { | |
set req.http.CVMFS-Status = "PASS"; | |
} | |
sub vcl_backend_response { | |
if (beresp.status == 200) { | |
if (bereq.http.CVMFS-Mutable) { | |
set beresp.ttl = 2s; | |
set beresp.grace = 3s; | |
set beresp.keep = 1y; | |
} else if (bereq.http.CVMFS-Immutable || bereq.http.CVMFS-External) { | |
set beresp.ttl = 30d; | |
set beresp.grace = 7d; | |
set beresp.keep = 1y; | |
} | |
} else { | |
set beresp.ttl = 1s; | |
set beresp.grace = 0s; | |
} | |
} | |
sub vcl_backend_error { | |
if (beresp.status == 503) { | |
return (retry); | |
} | |
} | |
sub vcl_deliver { | |
set resp.http.CVMFS-Varnish = "cvmfs.vcl"; | |
if (resp.http.CVMFS-Status) { | |
set resp.http.CVMFS-Status = resp.http.CVMFS-Status + ", "; | |
} | |
if (req.http.CVMFS-Status ~ "HIT|MISS") { | |
set resp.http.CVMFS-Status = resp.http.CVMFS-Status + server.identity + " " + req.http.CVMFS-Status + | |
"(" + obj.hits + ")"; | |
} else { | |
set resp.http.CVMFS-Status = resp.http.CVMFS-Status + server.identity + " " + req.http.CVMFS-Status; | |
} | |
if (obj.uncacheable) { | |
set resp.http.CVMFS-Uncacheable = "true"; | |
} else { | |
set resp.http.CVMFS-TTL = obj.ttl; | |
} | |
} |
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