Add haproxy files

haproxy/files/haproxy.cfg

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+#---------------------------------------------------------------------
+# Example configuration for a possible web application.  See the
+# full configuration options online.
+#
+#   http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
+#
+#---------------------------------------------------------------------
+
+#---------------------------------------------------------------------
+# Global settings
+#---------------------------------------------------------------------
+global
+    # to have these messages end up in /var/log/haproxy.log you will
+    # need to:
+    #
+    # 1) configure syslog to accept network log events.  This is done
+    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
+    #    /etc/sysconfig/syslog
+    #
+    # 2) configure local2 events to go to the /var/log/haproxy.log
+    #   file. A line like the following can be added to
+    #   /etc/sysconfig/syslog
+    #
+    #    local2.*                       /var/log/haproxy.log
+    #
+    log         127.0.0.1 local2
+
+    chroot      /var/lib/haproxy
+    pidfile     /var/run/haproxy.pid
+    maxconn     4000
+    user        haproxy
+    group       haproxy
+    daemon
+
+    # turn on stats unix socket
+    stats socket /var/lib/haproxy/stats
+
+#---------------------------------------------------------------------
+# common defaults that all the 'listen' and 'backend' sections will
+# use if not designated in their block
+#---------------------------------------------------------------------
+defaults
+    mode                    http
+    log                     global
+    option                  httplog
+    option                  dontlognull
+    option http-server-close
+    option forwardfor       except 127.0.0.0/8
+    option                  redispatch
+    retries                 3
+    timeout http-request    10s
+    timeout queue           1m
+    timeout connect         10s
+    timeout client          1m
+    timeout server          1m
+    timeout http-keep-alive 10s
+    timeout check           10s
+    maxconn                 3000
+
+#---------------------------------------------------------------------
+# main frontend which proxys to the backends
+#---------------------------------------------------------------------
+frontend  main *:5000
+    acl url_static       path_beg       -i /static /images /javascript /stylesheets
+    acl url_static       path_end       -i .jpg .gif .png .css .js
+
+    use_backend static          if url_static
+    default_backend             app
+
+#---------------------------------------------------------------------
+# static backend for serving up images, stylesheets and such
+#---------------------------------------------------------------------
+backend static
+    balance     roundrobin
+    server      static 127.0.0.1:4331 check
+
+#---------------------------------------------------------------------
+# round robin balancing between the various backends
+#---------------------------------------------------------------------
+backend app
+    balance     roundrobin
+    server  app1 127.0.0.1:5001 check
+    server  app2 127.0.0.1:5002 check
+    server  app3 127.0.0.1:5003 check
+    server  app4 127.0.0.1:5004 check
+

haproxy/init.sls

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+haproxy:
+  pkg:
+    - installed
+  file:
+    - managed
+    - name: /etc/haproxy/haproxy.cfg
+    - source: salt://haproxy/files/haproxy.cfg
+    - user: root
+    - group: root
+    - mode: 644
+    - template: jinja
+  service:
+    - running
+    - enable: True
+    - require:
+      - pkg: haproxy
+    - watch:
+      - file: haproxy