Add pip config to lxc_hosts

If this playbook is run on it's own, prior to a full stack being
deployed, tasks will fail due to pip being configured incorrectly.
This change adds the required common tasks to fix the potential
situation.

Change-Id: I09590659a2b2f1b7dfec577b97be91b1a294a7fd
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

playbooks/lxc-hosts-setup.yml

@@ -19,6 +19,8 @@
   max_fail_percentage: 20
   user: root
   pre_tasks:
+    - include: common-tasks/set-upper-constraints.yml
+    - include: common-tasks/set-pip-upstream-url.yml
     - name: Check the state of the default LXC service log directory
       stat:
         path: "/var/log/lxc"
@@ -49,6 +51,8 @@
       rsyslog_client_config_name: "99-lxc-rsyslog-client.conf"
       tags:
         - rsyslog
+  vars_files:
+    - defaults/repo_packages/openstack_services.yml
   environment: "{{ deployment_environment_variables | default({}) }}"
   tags:
     - lxc-hosts