Listeners macro: skip on empty mine

Don't fail if mine does not contain information about the queried
minion.
In the future it would be nice to add another conditional to allow such
minions to fall-back to the locally executed network module for
masterless setups.

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

pillar/global/macros.jinja

@@ -2,16 +2,18 @@
 {%- set listen_ips = [] -%}
 {%- set minion = grains['id'] -%}
 {%- set legal6s = ('fd29', '2a01:4f8:11e:2200') -%}
-{%- for ip in salt.saltutil.runner('mine.get', tgt=minion, fun='network.ip_addrs', tgt_type='glob')[minion] -%}
+{%- set ip4s = salt.saltutil.runner('mine.get', tgt=minion, fun='network.ip_addrs', tgt_type='glob') -%}
+{%- set ip6s = salt.saltutil.runner('mine.get', tgt=minion, fun='network.ip_addrs6', tgt_type='glob') -%}
+{%- if minion in ip4s -%}{%- for ip in ip4s[minion] -%}
 {%- if salt['network.is_private'](ip) -%}
 {%- do listen_ips.append(ip) -%}
 {%- endif -%}
-{%- endfor -%}
-{%- for ip in salt.saltutil.runner('mine.get', tgt=minion, fun='network.ip_addrs6', tgt_type='glob')[minion] -%}
+{%- endfor -%}{%- endif -%}
+{%- if minion in ip6s -%}{%- for ip in ip6s[minion] -%}
 {%- if ip.startswith(legal6s) -%}
 {%- do listen_ips.append(ip) -%}
 {%- endif -%}
-{%- endfor -%}
+{%- endfor -%}{%- endif -%}
 {%- for ip in listen_ips %}
 - {{ ip }}
 {%- endfor %}

pillar/role/salt/common.sls

@@ -1,3 +1,4 @@
 salt:
   hash_type: sha512
   log_level: info
+  rootgroup: salt