Sample Varnish VCL configs for Elastic Beanstalk

wordpress-example.yml

# Source: https://forums.aws.amazon.com/thread.jspa?messageID=482679&tstart=0#482679

packages:
  yum:
    varnish: []
files:
  "/etc/varnish/default.vcl" :
    owner: root
    group: root
    content: |
      backend default {
          .host = "127.0.0.1";
          .port = "8080";
      }
 
      acl purge {
          "127.0.0.1";
          "localhost";
      }
 
      sub vcl_recv {
        if (req.request == "PURGE") {
          if (!client.ip ~ purge) {
            error 405 "Not allowed.";
          }
          return (lookup);
        }
 
        if (req.url ~ "\.(gif|jpg|jpeg|swf|css|js|flv|mp3|mp4|pdf|ico|png)(\?.*|)$") {
          unset req.http.cookie;
          set req.url = regsub(req.url, "\?.*$", "");
        }
 
        if (req.url ~ "\?(utm_(campaign|medium|source|term)|adParams|client|cx|eid|fbid|feed|ref(id|src)?|v(er|iew))=") {
          set req.url = regsub(req.url, "\?.*$", "");
        }
 
        if (req.url ~ "wp-(login|admin)" || req.url ~ "preview=true" || req.url ~ "xmlrpc.php") {
          return (pass);
        }
 
        if (req.http.cookie) {
          if (req.http.cookie ~ "(wordpress_|wp-settings-)") {
            return(pass);
          } else {
            unset req.http.cookie;
          }
        }
      }
 
      sub vcl_fetch {
        if ( (!(req.url ~ "(wp-(login|admin)|login)")) || (req.request == "GET") ) {
          unset beresp.http.set-cookie;
          set beresp.ttl = 1h;
        }
 
        if (req.url ~ "\.(gif|jpg|jpeg|swf|css|js|flv|mp3|mp4|pdf|ico|png)(\?.*|)$") {
          set beresp.ttl = 365d;
        }
      }
 
      sub vcl_deliver {
      # multi-server webfarm? set a variable here so you can check
      # the headers to see which frontend served the request
      #   set resp.http.X-Server = "server-01";
         if (obj.hits > 0) {
           set resp.http.X-Cache = "HIT";
         } else {
           set resp.http.X-Cache = "MISS";
         }
      }
      sub vcl_hit {
        if (req.request == "PURGE") {
          purge;
          error 200 "OK";
        }
      }
 
      sub vcl_miss {
        if (req.request == "PURGE") {
          purge;
          error 404 "Not cached";
        }
      }
commands:
  # configure apache
  010_httpd.conf : 
    command: "sed -i 's/Listen 8080/Listen 80/g' /etc/httpd/conf/httpd.conf"
  011_httpd.conf : 
    command: "sed -i 's/Listen 80/Listen 8080/g' /etc/httpd/conf/httpd.conf"
  # configure varnish
  040_varnish: 
    command: "sed -i 's/VARNISH_LISTEN_PORT=6081/VARNISH_LISTEN_PORT=80/g' /etc/sysconfig/varnish"
  041_varnish: 
    command: "sed -i 's/VARNISH_ADMIN_LISTEN_PORT=6082/VARNISH_ADMIN_LISTEN_PORT=2000/g' /etc/sysconfig/varnish"
services:
  sysvinit:
    varnish:
      enabled: true
      ensureRunning: true