Keystone container may end up with broken openrc file

[Martin André]

If the keystone container is started before the keystone k8s service is up, we'll end up with a broken openrc file:

[root@keystone /]# cat openrc
export OS_AUTH_URL="http://:5000/v2.0"
export OS_USERNAME=admin
export OS_PASSWORD="kolla"
export OS_TENANT_NAME=admin

We need to check that the KEYSTONE_PUBLIC_SERVICE_HOST and KEYSTONE_ADMIN_SERVICE_HOST variables are set in keystone start.sh and exit otherwise to permit Kubernetes to reschedule the container.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/138601
Committed: https://git.openstack.org/cgit/stackforge/kolla/commit/?id=21f28309e7a15f25e1763611d18330145e0ff0fa
Submitter: Jenkins
Branch: master

commit 21f28309e7a15f25e1763611d18330145e0ff0fa
Author: Martin André <email address hidden>
Date: Mon Dec 1 14:50:58 2014 +0900

    Check for all required variables in keystone start.sh

    This allows Kubernetes to reschedule the container in case a required
    variable is missing, for example when the Kubernetes pod is started
    before the service.

    Additionally, define the KEYSTONE_ADMIN_SERVICE_HOST and
    KEYSTONE_PUBLIC_SERVICE_HOST variables to their common version if not
    already set to allow usage outside of Kubernetes with docker link
    feature.

    Change-Id: Ie0966c18076a770e4031bbf5f777dd1be0ba20bc
    Closes-Bug: 1398632