MT#58452 Add IPv6 listening checks for existing IPv4 checks

Add IPv6 entries for services for which we are currently checking their
IPv4 listening addresses. This makes sure we check for these addresses
and that we do not regress in case other components rely on being able
to access these services through these addresses.

Change-Id: Ifa73e594d8cce862af77317ea88cea5c564dd1c6

templates/810_network-dns-debian.yaml.tt2

@@ -3,4 +3,5 @@ dns:
     resolvable: true
     addrs:
       - 127.0.0.1
+      - ::1
     timeout: 500

templates/820_network-ports-debian.yaml.tt2

@@ -3,16 +3,25 @@ port:
   tcp:22:
     listening: true
     ip: ["0.0.0.0"]
+  tcp6:22:
+    listening: true
+    ip: ["::"]
 
   # Exim MTA
   tcp:25:
     listening: true
     ip: ["127.0.0.1"]
+  tcp6:25:
+    listening: true
+    ip: ["::1"]
 
   # NTP (systemd-timesyncd does not listen)
   udp:123:
     listening: [% ntp.backend == 'timesyncd' ? 'false' : 'true ' %]
     ip: ["0.0.0.0", "127.0.0.1"]
+  udp6:123:
+    listening: [% ntp.backend == 'timesyncd' ? 'false' : 'true ' %]
+    ip: ["::", "::1"]
 
   # Check for a closed port, nothing there.
   tcp:7777:

templates/821_network-ports-ngcp.yaml.tt2

@@ -78,11 +78,17 @@ port:
   tcp:443:
     listening: true
     ip: ["[% web_ext_ips.0 %]"]
+  tcp6:443:
+    listening: true
+    ip: ["::1"]
 
   # Nginx HTTPS (NGCP Panel Admin)
   tcp:1443:
     listening: true
     ip: ["[% web_int_ips.0 %]"]
+  tcp6:1443:
+    listening: true
+    ip: ["::1"]
 
 [% END -%]
 [% IF is_mgmt && pbx.enable == 'yes' -%]
@@ -198,6 +204,9 @@ port:
   tcp:6379:
     listening: true
     ip: ["127.0.0.1", "[% ha_int_ips.0 %]"]
+  tcp6:6379:
+    listening: true
+    ip: ["::1"]
 
 [% END -%]
 [% IF is_rtp -%]

templates/822_network-ports-ngcp-pro.yaml.tt2

@@ -12,6 +12,9 @@ port:
   udp:161:
     listening: true
     ip: ["127.0.0.1"]
+  udp6:161:
+    listening: true
+    ip: ["::1"]
 
   # Corosync
   udp:5405: