--- /dev/null
+backend holter {
+ # holter.debian.org
+ .host = "194.177.211.202";
+ .port = "80";
+}
+backend powell {
+ # powell.debian.org
+ .host = "87.106.64.223";
+ .port = "80";
+}
+
+sub vcl_recv {
+
+ # Add a unique header containing the client address
+ remove req.http.X-Forwarded-For;
+ set req.http.X-Forwarded-For = req.http.rlnclientipaddr;
+
+ ### restart logic, this will redefine the backends if vcl_restart has been triggered
+ if (req.restarts == 0) {
+ set req.backend = holter;
+ } else if (req.restarts == 1) {
+ set req.backend = powell;
+ } else if (req.restarts == 2) {
+ set req.backend = holter;
+ } else {
+ set req.backend = holter;
+ }
+
+
+ if (req.request == "GET" && req.url ~ "^/search?") {
+ return(pass);
+ }
+ if (req.request == "GET" && req.url ~ "^/(squeeze|wheezy|sid|experimental|stable|testing|unstable|rc-buggy|squeezy-backports|lenny-backports|Pics)/") {
+ return(lookup);
+ }
+}
+
+sub vcl_fetch {
+ if (beresp.status != 200 && beresp.status != 403 && beresp.status != 404 && beresp.status != 301 && beresp.status != 302) {
+ return(restart);
+ }
+
+ # if i cant connect to the backend, ill set the grace period to be 600 seconds to hold onto content
+ set beresp.ttl = 600s;
+ set beresp.grace = 600s;
+
+ if (beresp.status == 404) {
+ set beresp.ttl = 0s;
+ }
+
+ if (beresp.status >= 500) {
+ set beresp.ttl = 0s;
+ }
+
+ if (req.request == "GET" && req.url ~ "^/search?") {
+ set beresp.ttl = 0s;
+ }
+
+ if (req.request == "GET" && req.url ~ "^/(squeeze|wheezy|sid|experimental|stable|testing|unstable|rc-buggy|squeezy-backports|lenny-backports|Pics)/") {
+ set beresp.ttl = 3600s;
+ }
+
+
+ set beresp.http.X-Cacheable = "YES";
+ return(deliver);
+}
+
+
+sub vcl_deliver {
+
+ set resp.http.X-Served-By = server.hostname;
+ if (obj.hits > 0) {
+ set resp.http.X-Cache = "HIT";
+ set resp.http.X-Cache-Hits = obj.hits;
+ } else {
+ set resp.http.X-Cache = "MISS";
+ }
+
+ return(deliver);
+}
--- /dev/null
+# Configuration file for varnish
+#
+# /etc/init.d/varnish expects the variables $DAEMON_OPTS, $NFILES and $MEMLOCK
+# to be set from this shell script fragment.
+#
+# Note: If systemd is installed, this file is obsolete and ignored. You will
+# need to copy /lib/systemd/system/varnish.service to /etc/systemd/system/ and
+# edit that file.
+
+# Should we start varnishd at boot? Set to "no" to disable.
+START=yes
+
+# Maximum number of open files (for ulimit -n)
+NFILES=131072
+
+# Maximum locked memory size (for ulimit -l)
+# Used for locking the shared memory log in memory. If you increase log size,
+# you need to increase this number as well
+MEMLOCK=82000
+
+# Default varnish instance name is the local nodename. Can be overridden with
+# the -n switch, to have more instances on a single server.
+# INSTANCE=$(uname -n)
+
+# This file contains 4 alternatives, please use only one.
+
+## Alternative 1, Minimal configuration, no VCL
+#
+# Listen on port 6081, administration on localhost:6082, and forward to
+# content server on localhost:8080. Use a 1GB fixed-size cache file.
+#
+# DAEMON_OPTS="-a :6081 \
+# -T localhost:6082 \
+# -b localhost:8080 \
+# -u varnish -g varnish \
+# -S /etc/varnish/secret \
+# -s file,/var/lib/varnish/$INSTANCE/varnish_storage.bin,1G"
+
+
+## Alternative 2, Configuration with VCL
+#
+# Listen on port 6081, administration on localhost:6082, and forward to
+# one content server selected by the vcl file, based on the request. Use a 1GB
+# fixed-size cache file.
+#
+DAEMON_OPTS="-a :80 \
+ -T localhost:6082 \
+ -f /etc/varnish/default.vcl \
+ -S /etc/varnish/secret \
+ -s malloc,1024m"
+
+
+## Alternative 3, Advanced configuration
+#
+# See varnishd(1) for more information.
+#
+# # Main configuration file. You probably want to change it :)
+# VARNISH_VCL_CONF=/etc/varnish/default.vcl
+#
+# # Default address and port to bind to
+# # Blank address means all IPv4 and IPv6 interfaces, otherwise specify
+# # a host name, an IPv4 dotted quad, or an IPv6 address in brackets.
+# VARNISH_LISTEN_ADDRESS=
+# VARNISH_LISTEN_PORT=6081
+#
+# # Telnet admin interface listen address and port
+# VARNISH_ADMIN_LISTEN_ADDRESS=127.0.0.1
+# VARNISH_ADMIN_LISTEN_PORT=6082
+#
+# # The minimum number of worker threads to start
+# VARNISH_MIN_THREADS=1
+#
+# # The Maximum number of worker threads to start
+# VARNISH_MAX_THREADS=1000
+#
+# # Idle timeout for worker threads
+# VARNISH_THREAD_TIMEOUT=120
+#
+# # Cache file location
+# VARNISH_STORAGE_FILE=/var/lib/varnish/$INSTANCE/varnish_storage.bin
+#
+# # Cache file size: in bytes, optionally using k / M / G / T suffix,
+# # or in percentage of available disk space using the % suffix.
+# VARNISH_STORAGE_SIZE=1G
+#
+# # File containing administration secret
+# VARNISH_SECRET_FILE=/etc/varnish/secret
+#
+# # Backend storage specification
+# VARNISH_STORAGE="file,${VARNISH_STORAGE_FILE},${VARNISH_STORAGE_SIZE}"
+#
+# # Default TTL used when the backend does not specify one
+# VARNISH_TTL=120
+#
+# # DAEMON_OPTS is used by the init script. If you add or remove options, make
+# # sure you update this section, too.
+# 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} \
+# -w ${VARNISH_MIN_THREADS},${VARNISH_MAX_THREADS},${VARNISH_THREAD_TIMEOUT} \
+# -S ${VARNISH_SECRET_FILE} \
+# -s ${VARNISH_STORAGE}"
+#
+
+
+## Alternative 4, Do It Yourself
+#
+# DAEMON_OPTS=""
+