Target unbound component group instead of _all

The unbound container group and component group share the same name,
so we are hitting the quirk in OSA inventory where containerized
services that have component and container groups sharing the same
name get both the hosts and containers added to the _all group.

This change targets the component group to correctly target only
the unbound containers, not the physical hosts for the containers.

Change-Id: Id214bbebeee73a6bf48088396e2e450669e00926

playbooks/inventory/group_vars/all.yml

@@ -70,7 +70,7 @@ openstack_host_specific_kernel_modules:
 
 ## DNS resolution (resolvconf) options
 #Group containing resolvers to configure
-resolvconf_resolver_group: unbound_all
+resolvconf_resolver_group: unbound
 
 ## Memcached options
 memcached_port: 11211

playbooks/inventory/group_vars/hosts.yml

@@ -19,7 +19,7 @@ openstack_hosts_package_state: "{{ package_state }}"
 security_package_state: "{{ package_state }}"
 
 # Disable /etc/hosts management if unbound DNS resolution containers exist
-openstack_host_manage_hosts_file: "{{ groups['unbound_all'] is not defined or groups['unbound_all'] | length < 1 }}"
+openstack_host_manage_hosts_file: "{{ groups['unbound'] is not defined or groups['unbound'] | length < 1 }}"
 
 # Use the RHEL 7 STIG content from the openstack-ansible-security role
 stig_version: rhel7

playbooks/unbound-install.yml

@@ -15,7 +15,7 @@
 
 - name: Install unbound DNS resolvers
   hosts:
-    - unbound_all
+    - unbound
   gather_facts: "{{ gather_facts | default(True) }}"
   user: root
   roles:
@@ -32,7 +32,7 @@
 
 - name: Install unbound DNS resolver client configurations
   hosts:
-    - "!unbound_all"
+    - "!unbound"
     - "{{ openstack_host_group|default('hosts') }}"
     - "{{ container_group|default('all_containers') }}"
   user: root
@@ -94,4 +94,4 @@
         - unbound_client
   vars:
     #Only run the resolvconf role when DNS containers are deployed to the env.
-    resolvconf_enabled: "{{ groups['unbound_all'] is defined and groups['unbound_all'] | length > 0 }}"
+    resolvconf_enabled: "{{ groups['unbound'] is defined and groups['unbound'] | length > 0 }}"