adding mod_proxy and mod_proxy_http states, updating the README doc

README.rst

@@ -20,6 +20,16 @@ Available states
 
 Installs the Apache package and starts the service.
 
+``apache.mod_proxy``
+-------------------
+
+Enables the Apache module mod_proxy.
+
+``apache.mod_proxy_http``
+-------------------
+
+Enables the Apache module mod_proxy_http and requires the Apache module mod_proxy to be enabled.
+
 ``apache.mod_wsgi``
 -------------------
 

apache/mod_proxy.sls

@@ -0,0 +1,16 @@
+{% if grains['os_family']=="Debian" %}
+
+include:
+  - apt
+  - apache
+
+a2enmod proxy:
+  cmd.run:
+    - unless: ls /etc/apache2/mods-enabled/proxy.load
+    - order: 225
+    - require:
+      - pkg: apache
+    - watch_in:
+      - cmd: apache-restart
+
+{% endif %}

apache/mod_proxy_http.sls

@@ -0,0 +1,18 @@
+{% if grains['os_family']=="Debian" %}
+
+include:
+  - apt
+  - apache
+  - apache.mod_proxy
+
+a2enmod proxy_http:
+  cmd.run:
+    - unless: ls /etc/apache2/mods-enabled/proxy_http.load
+    - order: 225
+    - require:
+      - pkg: apache
+      - cmd: a2enmod proxy
+    - watch_in:
+      - cmd: apache-restart
+
+{% endif %}