Use the config_template module from the dedicated repo

The config_template action module has now been moved into its own git
repository (openstack/ansible-config_template). This has been done to
simplify the ability to use the plugin in other non OpenStack-Ansible
projects.

This implements the changes necessary to ensure that all role tests
now make use of the new git repository, rather than the old location
in the openstack-ansible-plugins repository. The config_template
repo is placed first in the list of library/action plugin locations
to use to ensure that any other version of the plugin (eg: ceph) is
not used.

Related-Bug: 1791258
Change-Id: Ia8030424eabecef3c5217907757d921f45e329f8

test-ansible-role-requirements.yml

@@ -1,4 +1,8 @@
 ---
+- name: config_template
+  scm: git
+  src: https://git.openstack.org/openstack/ansible-config_template
+  version: master
 - name: openstack_openrc
   scm: git
   src: https://git.openstack.org/openstack/openstack-ansible-openstack_openrc

test-ansible.cfg

@@ -25,7 +25,7 @@ transport         = ssh
 host_key_checking = False
 control_path      = /tmp/%%h-%%r
 ssh_args          = -o ControlMaster=no -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o ServerAliveInterval=64 -o ServerAliveCountMax=1024 -o Compression=no -o TCPKeepAlive=yes -o VerifyHostKeyDNS=no -o ForwardX11=no -o ForwardAgent=yes
-library           = $HOME/.ansible/plugins/library:$HOME/.ansible/roles/ceph-ansible/library
+library           = $HOME/.ansible/roles/config_template/library:$HOME/.ansible/plugins/library:$HOME/.ansible/roles/ceph-ansible/library
 callback_plugins  = $HOME/.ansible/plugins/callback:$HOME/.ansible/roles/ceph-ansible/plugins/callback
-action_plugins    = $HOME/.ansible/plugins/action:$HOME/.ansible/roles/ceph-ansible/plugins/actions
+action_plugins    = $HOME/.ansible/roles/config_template/action:$HOME/.ansible/roles/ceph-ansible/plugins/actions
 roles_path        = $HOME/.ansible/roles:$HOME/.ansible/testing-role