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1 2 3 4 5 6 7 8 9 10 11 12 | probe backend_healthcheck { .interval = 5s; .timeout = 3s; .window = 10; .threshold = 8; .request = "GET /favicon.ico HTTP/1.1" "Host: www.xxx.com" "Connection: close" "Accept-Encoding: foo/bar"; } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | import directors; include "health_check.vcl"; backend d102_app_07 { .host = "10.0.11.145"; .port = "80"; .first_byte_timeout = 9s; .connect_timeout = 3s; .between_bytes_timeout = 1s; .probe = backend_healthcheck; } backend d102_app_08 { .host = "10.0.11.146"; .port = "80"; .first_byte_timeout = 9s; .connect_timeout = 3s; .between_bytes_timeout = 1s; .probe = backend_healthcheck; } sub vcl_init { new web = directors.random(); web.add_backend(d102_app_07, 1); web.add_backend(d102_app_08, 1); } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 | vcl 4.0; import std; include "backends.vcl"; acl allow_purge_cache { "127.0.0.1"; "10.0.0.0"/8; "172.0.0.0"/8; } sub vcl_recv { if (req.method == "PURGE") { if (!client.ip ~ allow_purge_cache) { return (synth(405, "Not Allowed.")); } return (purge); } set req.backend_hint = web.backend(); if (req.url ~ "\.(php|asp|aspx|jsp|do|ashx|shtml)($|\?)") { return (pass); } if (req.url ~ "\.(css|js|html|htm|bmp|png|gif|jpg|jpeg|ico|gz|tgz|bz2|tbz|zip|rar|mp3|mp4|ogg|swf|flv)($|\?)") { unset req.http.cookie; return (hash); } if (req.restarts == 0) { if (req.http.x-forwarded-for) { set req.http.X-Forwarded-For = req.http.X-Forwarded-For + ", " + client.ip; } else { set req.http.X-Forwarded-For = client.ip; } } if (req.http.Cache-Control ~ "(?i)no-cache") { if (!(req.http.Via || req.http.User-Agent ~ "(?i)bot" || req.http.X-Purge)) { return (purge); } } if (req.method != "GET" && req.method != "HEAD" && req.method != "PUT" && req.method != "POST" && req.method != "TRACE" && req.method != "OPTIONS" && req.method != "PATCH" && req.method != "DELETE") { return (pipe); } if (req.method != "GET" && req.method != "HEAD") { return (pass); } if (req.http.Authorization) { return (pass); } if (req.http.Accept-Encoding) { if (req.url ~ "\.(bmp|png|gif|jpg|jpeg|ico|gz|tgz|bz2|tbz|zip|rar|mp3|mp4|ogg|swf|flv)$") { unset req.http.Accept-Encoding; } elseif (req.http.Accept-Encoding ~ "gzip") { set req.http.Accept-Encoding = "gzip"; } elseif (req.http.Accept-Encoding ~ "deflate") { set req.http.Accept-Encoding = "deflate"; } else { unset req.http.Accept-Encoding; } } if (req.http.Upgrade ~ "(?i)websocket") { return (pipe); } if (!std.healthy(req.backend_hint)) { unset req.http.Cookie; } if (req.http.x-pipe && req.restarts > 0) { unset req.http.x-pipe; return (pipe); } return (hash); } sub vcl_pipe { if (req.http.upgrade) { set bereq.http.upgrade = req.http.upgrade; } return (pipe); } sub vcl_pass { if (req.method == "PURGE") { return (synth(502, "PURGE on a passed object.")); } } sub vcl_hash { hash_data(req.url); if (req.http.host) { hash_data(req.http.host); } else { hash_data(server.ip); } if (req.http.Cookie) { hash_data(req.http.Cookie); } if (req.http.Accept-Encoding ~ "gzip") { hash_data("gzip"); } elseif (req.http.Accept-Encoding ~ "deflate") { hash_data("deflate"); } } sub vcl_hit { if (req.method == "PURGE") { return (synth(200, "Purged.")); } if (obj.ttl >= 0s) { return (deliver); } if (std.healthy(req.backend_hint)) { if (obj.ttl + 10s > 0s) { return (deliver); } else { return(fetch); } } else { if (obj.ttl + obj.grace > 0s) { return (deliver); } else { return (fetch); } } return (deliver); } sub vcl_miss { if (req.method == "PURGE") { return (synth(404, "Purged.")); } return (fetch); } sub vcl_backend_response { set beresp.grace = 5m; set beresp.ttl = std.duration(regsub(beresp.http.Cache-Control, ".*s-maxage=([0-9]+).*", "\1") + "s", 0s); if (beresp.ttl > 0s) { unset beresp.http.Set-Cookie; } if (beresp.http.Set-Cookie) { set beresp.uncacheable = true; return (deliver); } if (beresp.http.Cache-Control && beresp.ttl > 0s) { set beresp.grace = 1m; unset beresp.http.Set-Cookie; } if (beresp.http.Content-Length ~ "[0-9]{8,}") { set bereq.http.x-pipe = "1"; return (retry); } if (bereq.url ~ "\.(php|asp|aspx|jsp|do|ashx|shtml)($|\?)") { set beresp.uncacheable = true; return (deliver); } if (bereq.url ~ "\.(css|js|html|htm|bmp|png|gif|jpg|jpeg|ico|gz|tgz|bz2|tbz|zip|rar|mp3|mp4|ogg|swf|flv)($|\?)") { unset beresp.http.set-cookie; } if (bereq.url ~ "^[^?]*\.(mp[34]|rar|tar|tgz|gz|wav|zip|bz2|xz|7z|avi|mov|ogm|mpe?g|mk[av])(\?.*)?$") { unset beresp.http.set-cookie; set beresp.do_stream = true; set beresp.do_gzip = false; } if ((!beresp.http.Cache-Control && !beresp.http.Expires) || beresp.http.Pragma ~ "no-cache" || beresp.http.Cache-Control ~ "(no-cache|no-store|private)") { set beresp.ttl = 120s; set beresp.uncacheable = true; return (deliver); } if (beresp.ttl <= 0s || beresp.http.Set-Cookie || beresp.http.Vary == "*") { set beresp.ttl = 120s; set beresp.uncacheable = true; return (deliver); } if (bereq.url ~ "\.(css|js|html|htm|bmp|png|gif|jpg|jpeg|ico)($|\?)") { set beresp.ttl = 15m; } elseif (bereq.url ~ "\.(gz|tgz|bz2|tbz|zip|rar|mp3|mp4|ogg|swf|flv)($|\?)") { set beresp.ttl = 30m; } else { set beresp.ttl = 10m; } return (deliver); } sub vcl_purge { if (req.method != "PURGE") { set req.http.X-Purge = "Yes"; return (restart); } } sub vcl_deliver { if (obj.hits > 0) { set resp.http.X-Cache = "HIT from " + req.http.host; set resp.http.X-Cache-Hits = obj.hits; } else { set resp.http.X-Cache = "MISS from " + req.http.host; } unset resp.http.X-Powered-By; unset resp.http.Server; unset resp.http.Via; unset resp.http.X-Varnish; unset resp.http.Age; } sub vcl_backend_error { if (beresp.status == 500 || beresp.status == 501 || beresp.status == 502 || beresp.status == 503 || beresp.status == 504) { return (retry); } } sub vcl_fini { return (ok); } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | NFILES=131072 MEMLOCK=25165824 NPROCS="unlimited" RELOAD_VCL=1 VARNISH_VCL_CONF=/etc/varnish/default.vcl VARNISH_LISTEN_ADDRESS=0.0.0.0 VARNISH_LISTEN_PORT=6081 VARNISH_ADMIN_LISTEN_ADDRESS=127.0.0.1 VARNISH_ADMIN_LISTEN_PORT=6082 VARNISH_SECRET_FILE=/etc/varnish/secret VARNISH_MIN_THREADS=240 VARNISH_MAX_THREADS=4800 VARNISH_THREAD_TIMEOUT=120 VARNISH_STORAGE_SIZE=24G VARNISH_STORAGE="malloc,${VARNISH_STORAGE_SIZE}" VARNISH_TTL=120 DAEMON_OPTS="-a ${VARNISH_LISTEN_ADDRESS}:${VARNISH_LISTEN_PORT} \ -f ${VARNISH_VCL_CONF} \ -T ${VARNISH_ADMIN_LISTEN_ADDRESS}:${VARNISH_ADMIN_LISTEN_PORT} \ -t ${VARNISH_TTL} \ -p thread_pools=24 \ -p thread_pool_min=${VARNISH_MIN_THREADS} \ -p thread_pool_max=${VARNISH_MAX_THREADS} \ -p thread_pool_timeout=${VARNISH_THREAD_TIMEOUT} \ -u varnish -g varnish \ -S ${VARNISH_SECRET_FILE} \ -s ${VARNISH_STORAGE} \ -p timeout_idle=60 \ -p timeout_linger=1 \ -p http_resp_hdr_len=16k \ -p http_max_hdr=256 \ -p http_req_hdr_len=16k \ -p lru_interval=120 \ -p listen_depth=8192" |
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