beaker/server: configure bkr client pointing back to localhost

We can use this for registering and configuring the lab controller as
part of the deployment playbooks. It will probably come in handy for
other stuff as well, like ad hoc tasks and testing.

The template is intentionally not named
templates/root/.beaker_client/config.j2 following the same pattern as
the other templates, because it seemed like a bad idea to have
a template inside a hidden directory.

roles/beaker/server/tasks/client.yml

@@ -0,0 +1,18 @@
+---
+# Configures the bkr client on the server itself. We can use this from Ansible
+# to perform various administrative tasks.
+
+- name: install bkr client
+  yum: pkg=beaker-client state=present
+  tags:
+    - beaker-server
+
+- name: create /root/.beaker_client
+  file: path=/root/.beaker_client state=directory
+  tags:
+    - beaker-server
+
+- name: configure bkr client
+  template: src=root/beaker-client-config.j2 dest=/root/.beaker_client/config mode=0600
+  tags:
+    - beaker-server

roles/beaker/server/tasks/main.yml

@@ -119,6 +119,8 @@
   tags:
     - beaker-server
 
+- include: client.yml
+
 - name: ensure beaker server has all relevant virthost ssh signatures in known_hosts
   lineinfile: dest=/root/.ssh/known_hosts regexp='{{ item.hostname }}' line='{{ item.hostname }} {{ item.signature }}' create=yes owner=root group=root
   with_items:

roles/beaker/server/templates/root/beaker-client-config.j2

@@ -0,0 +1,4 @@
+HUB_URL = "http://localhost/bkr"
+AUTH_METHOD = "password"
+USERNAME = {{ beaker_server_admin_user|quote }}
+PASSWORD = {{ beaker_server_admin_pass|quote }}