Merge pull request #13 from ppieprzycki/master

New parameters

README.rst

                   jump: ACCEPT
                   comment: Blah
 
+Support logging with custom prefix and log level
+
+.. code-block:: yaml
+
+    parameters:
+      iptables:
+        service:
+          chain:
+            POSTROUTING:
+              rules:
+                - table: nat
+                  protocol: tcp
+                  match: multiport
+                  destination_ports:
+                    - 21
+                    - 80
+                    - 443
+                    - 2220
+                  source_network: '10.20.30.0/24'
+                  log_level: 7
+                  log_prefix: 'iptables-logging: '
+                  jump: LOG
+
+
 IPv6 is supported as well
 
 .. code-block:: yaml

iptables/_rule.sls

   {%- if rule.destination_port is defined %}
   - dport: {{ rule.destination_port }}
   {%- endif %}
+  {%- if rule.destination_ports is defined %}
+  - dports:
+  {%- for port in rule.destination_ports %}
+    - {{ port }}
+  {% endfor %}
+  {%- endif %}
   {%- if rule.source_port is defined %}
   - sport: {{ rule.source_port }}
   {%- endif %}
   {%-  if rule.destination_network is defined %}
   - destination: {{ rule.destination_network }}
   {%- endif %}
+  {%-  if rule.log_prefix is defined %}
+  - log-prefix: '{{ rule.log_prefix }}'
+  {%- endif %}
+  {%-  if rule.log_level is defined %}
+  - log-level: {{ rule.log_level }}
+  {%- endif %}
+  {%-  if rule.limit is defined %}
+  - limit: '{{ rule.limit }}'
+  {%- endif %}
   {%- if chain.policy is defined %}
   - require_in:
     - iptables: iptables_{{ chain_name }}_policy