web-proxy: IPv6 listener brackets

Add logic to wrap IPv6 listening addresses in brackets, to prevent nginx
from failing to start.

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>

pillar/map.jinja

@@ -9,6 +9,8 @@
 {#- START Listener detection logic -#}
 
 {%- set listen_ips = [] -%}
+{%- set listen_ips4 = [] -%}
+{%- set listen_ips6 = [] -%}
 {%- set minion = grains['id'] -%}
 {%- set legal6s = ('fd29', '2a01:4f8:11e:2200') -%}
 {%- set ip4s = salt.saltutil.runner('mine.get', tgt=minion, fun='network.ip_addrs', tgt_type='glob') -%}
@@ -16,11 +18,13 @@
 {%- if minion in ip4s -%}{%- for ip in ip4s[minion] -%}
 {%- if salt['network.is_private'](ip) -%}
 {%- do listen_ips.append(ip) -%}
+{%- do listen_ips4.append(ip) -%}
 {%- endif -%}
 {%- endfor -%}{%- endif -%}
 {%- if minion in ip6s -%}{%- for ip in ip6s[minion] -%}
 {%- if ip.startswith(legal6s) -%}
 {%- do listen_ips.append(ip) -%}
+{%- do listen_ips6.append(ip) -%}
 {%- endif -%}
 {%- endfor -%}{%- endif -%}
 

pillar/role/web-proxy.sls

@@ -1,4 +1,4 @@
-{%- from slspath ~ '/../map.jinja' import listen_ips -%}
+{%- from slspath ~ '/../map.jinja' import listen_ips, listen_ips4, listen_ips6 -%}
 
 nginx:
   snippets:
@@ -23,9 +23,14 @@ nginx:
         - fastcgi_param: SCRIPT_FILENAME $document_root$fastcgi_script_name
     {%- if listen_ips | length %}
     listen:
-      {%- for ip in listen_ips %}
-      - listen: {{ ip }}:443 ssl http2
+      {%- for ip4 in listen_ips4 %}
+      - listen: {{ ip4 }}:443 ssl http2
       {%- endfor %}
+      {%- if listen_ips6 | length %}
+      {%- for ip6 in listen_ips6 %}
+      - listen: '[{{ ip6 }}]:443 ssl http2'
+      {%- endfor %}
+      {%- endif %}
     {%- endif %}
 
 firewalld: