Changes between Version 72 and Version 73 of NewLiveServer

Timestamp:

07/13/11 11:11:57 (5 years ago)

Author:

chris

Comment:

--

NewLiveServer

@@ -142 +142 @@
 }}}
 
+== varnish ==
+
+See ticket:224.
+
+Install Varnish 2.1 via the [http://www.varnish-cache.org/installation/debian varnish-cache.org repository]:
+
+{{{
+curl http://repo.varnish-cache.org/debian/GPG-key.txt | apt-key add -
+aptitude install lsb-release
+echo "deb http://repo.varnish-cache.org/debian/ $(lsb_release -s -c) varnish-2.1" >> /etc/apt/sources.list.d/varnish.list
+aptitude update
+aptitude install varnish
+}}}
+
+Edit these things in the main config file, /etc/default/varnish :
+
+{{{
+#DAEMON_OPTS="-a :6081 \
+#             -T localhost:6082 \
+#             -f /etc/varnish/default.vcl \
+#             -S /etc/varnish/secret \
+#             -s file,/var/lib/varnish/$INSTANCE/varnish_storage.bin,1G"
+
+DAEMON_OPTS="-a :80 \
+             -T localhost:81 \
+             -f /etc/varnish/default.vcl \
+             -S /etc/varnish/secret \
+             -s file,/var/lib/varnish/$INSTANCE/varnish_storage.bin,256M"
+}}}
+
+And in /etc/varnish/default.vcl :
+
+{{{
+backend default {
+    .host = "127.0.0.1";
+    .port = "8080";
+    .connect_timeout = 600s;
+    .first_byte_timeout = 600s;
+    .between_bytes_timeout = 600s;
+}
+acl purge {
+  "localhost";
+  "127.0.0.1";
+}
+
+# chris
+# http://drupal.org/node/1054886#purge
+sub vcl_recv {
+    # remove all cookies
+    unset req.http.Cookie;
+
+    ## Pass cron jobs and server-status
+    if (req.url ~ "cron.php") {
+      return (pass);
+    }
+    if (req.url ~ ".*/server-status$") {
+      return (pass);
+    }
+
+    # Normalize the Accept-Encoding header
+    # as per: http://varnish-cache.org/wiki/FAQ/Compression
+    if (req.http.Accept-Encoding) {
+      if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
+        # No point in compressing these
+        remove req.http.Accept-Encoding;
+      } elsif (req.http.Accept-Encoding ~ "gzip") {
+        set req.http.Accept-Encoding = "gzip";
+     } elsif (req.http.Accept-Encoding ~ "deflate") {
+        set req.http.Accept-Encoding = "deflate";
+      } else {
+        # unkown algorithm
+        remove req.http.Accept-Encoding;
+      }
+    }
+
+    ## Default request checks
+    if (req.request != "GET" &&
+    req.request != "HEAD" &&
+    req.request != "PUT" &&
+    req.request != "POST" &&
+    req.request != "TRACE" &&
+    req.request != "OPTIONS" &&
+    req.request != "DELETE" &&
+    req.request != "PURGE") {
+    # Non-RFC2616 or CONNECT which is weird.
+    return (pipe);
+    }
+    if (req.request != "GET" && req.request != "HEAD" && req.request != "PURGE") {
+    # We only deal with GET, PURGE and HEAD by default
+    return (pass);
+    }
+
+    # Check the incoming request type is "PURGE", not "GET" or "POST"
+    if (req.request == "PURGE") {
+      # Check if the ip coresponds with the acl purge
+      if (!client.ip ~ purge) {
+      # Return error code 405 (Forbidden) when not
+        error 405 "Not allowed.";
+      }
+      # Purge all objects from cache that match the incoming url and host
+      purge("req.url == " req.url " && req.http.host == " req.http.host);
+      # Return a http error code 200 (Ok)
+      error 200 "Purged.";
+      }
+
+    # Grace to allow varnish to serve content if backend is lagged
+    #set obj.grace = 5m;
+}
+
+# remove all cookies
+# chris
+sub vcl_fetch {
+    unset beresp.http.set-cookie;
+}
+
+# chris
+sub vcl_deliver {
+if (obj.hits > 0) {
+set resp.http.X-Varnish-Cache = "HIT";
+}
+else {
+set resp.http.X-Varnish-Cache = "MISS";
+}
+
+}}}
+
 == apc ==