Fix IPv6 addresses for prometheus exporters

Ensure that IPv6 listen addresses for libvirt-exporter and
fluentd prometheus exporter are formatted correctly by
passing them through put_address_in_context as with other
prometheus exporters.

Closes-Bug: #2096659
Change-Id: Ib035534e2d1a27d5f496cfc6fa1d24a3dbe1dd41

ansible/roles/common/templates/conf/input/08-prometheus.conf.j2

@@ -1,6 +1,6 @@
 <source>
   @type prometheus
-  bind {{ api_interface_address }}
+  bind "{{ api_interface_address | put_address_in_context('url') }}"
   port {{ prometheus_fluentd_integration_port }}
   metrics_path /metrics
 </source>

ansible/roles/prometheus/templates/prometheus-libvirt-exporter.json.j2

@@ -1,5 +1,5 @@
 {
-    "command": "/opt/libvirt-exporter --web.listen-address={{ api_interface_address }}:{{ prometheus_libvirt_exporter_port }}",
+    "command": "/opt/libvirt-exporter --web.listen-address={{ api_interface_address | put_address_in_context('url') }}:{{ prometheus_libvirt_exporter_port }}",
     "config_files": [
         {% if kolla_copy_ca_into_containers | bool %}
         {

releasenotes/notes/promethus-exporters-ipv6-c87b57cd21cb6bfe.yaml

@@ -0,0 +1,8 @@
+---
+fixes:
+  - |
+    Correctly formats prometheus-libvirt-exporter and
+    Fluentd Prometheus exporter IPv6 listen addresses.
+
+    Fixes `LP#2096659
+    <https://bugs.launchpad.net/kolla-ansible/+bug/2096659>`__