[TESTS] add a test file for disable-on-404

tests/test-disable-404.cfg

@@ -0,0 +1,61 @@
+# This is a test configuration.
+# It makes use of a farm built from 4 active servers and 4 backup servers,
+# all listenening to different IP addresses on port 80. Health-checks are
+# TCP only on port 81 so that iptables rules permit easy selection of which
+# servers are enabled or disabled. It checks for the file /alive, and disables
+# the server if the response is 404.
+#
+# Create statistics counters this way :
+#
+#   iptables -N http
+#   iptables -A OUTPUT -p tcp --syn --dport 80 -j http
+#   for i in $(seq 1 8); do iptables -A http -d 127.0.0.$i; done
+#   iptables -A http -d 127.0.0.0/24
+#
+# Consult the statistics using iptables this way:
+#
+#   iptables --line-numbers -nxvL http
+#   iptables -Z http
+# 
+# Block individual servers like this :
+#   iptables -I INPUT -p tcp --dport 81 -d 127.0.0.1 -j DROP
+#
+# Enable each server like this :
+#   touch $SRV_ROOT/alive
+#
+# Disable each server like this :
+#   rm -f $SRV_ROOT/alive
+#
+
+global
+	maxconn    1000
+        stats socket /tmp/sock1 mode 600
+        stats timeout 3000
+        stats maxconn 2000
+
+listen  sample1
+        mode       http
+        retries    1
+        redispatch
+        contimeout 1000
+        clitimeout 5000
+        srvtimeout 5000
+        maxconn    40000
+        bind       :8080
+	cookie     SRV insert indirect nocache
+        #balance    source
+        balance    roundrobin
+	option     allbackups
+        server     act1 127.0.0.1:80 cookie a1 weight 10 check port 81 inter 1000 fall 4
+        server     act2 127.0.0.2:80 cookie a2 weight 20 check port 81 inter 1000 fall 4
+        server     act3 127.0.0.3:80 cookie a3 weight 30 check port 81 inter 1000 fall 4
+        server     act4 127.0.0.4:80 cookie a4 weight 40 check port 81 inter 1000 fall 4
+        server     bck1 127.0.0.5:80 cookie b1 weight 10 check port 81 inter 1000 fall 4 backup
+        server     bck2 127.0.0.6:80 cookie b2 weight 20 check port 81 inter 1000 fall 4 backup
+        server     bck3 127.0.0.7:80 cookie b3 weight 30 check port 81 inter 1000 fall 4 backup
+        server     bck4 127.0.0.8:80 cookie b4 weight 40 check port 81 inter 1000 fall 4 backup
+        option     httpclose
+	stats      uri /stats
+	stats      refresh 5
+	option     httpchk GET /alive
+	http-check disable-on-404