Added clustering github workflow

Signed-off-by: Petu Eusebiu <peusebiu@cisco.com>

examples/cluster/haproxy.cfg

@@ -0,0 +1,49 @@
+global
+        log /dev/log    local0
+        log /dev/log    local1 notice
+        chroot /var/lib/haproxy
+        maxconn 2000
+        stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
+        stats timeout 30s
+        user haproxy
+        group haproxy
+        daemon
+
+        # Default SSL material locations
+        ca-base /etc/ssl/certs
+        crt-base /etc/ssl/private
+
+        # See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
+        ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
+        ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
+        ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets
+
+defaults
+        log     global
+        mode    http
+        option  httplog
+        option  dontlognull
+        timeout connect 5000
+        timeout client  50000
+        timeout server  50000
+        errorfile 400 /etc/haproxy/errors/400.http
+        errorfile 403 /etc/haproxy/errors/403.http
+        errorfile 408 /etc/haproxy/errors/408.http
+        errorfile 500 /etc/haproxy/errors/500.http
+        errorfile 502 /etc/haproxy/errors/502.http
+        errorfile 503 /etc/haproxy/errors/503.http
+        errorfile 504 /etc/haproxy/errors/504.http
+
+frontend local_zot
+    bind 127.0.0.1:8080
+    mode http
+    default_backend my_zots
+
+backend my_zots
+    mode http
+    balance leastconn
+    stick-table type ip size 1m expire 1h
+    stick on src
+    server zot1 127.0.0.1:8081 check
+    server zot2 127.0.0.1:8081 check
+    server zot3 127.0.0.1:8082 check