Description of problem:
When trying to deploy octavia in a separated composable role the deployment fails to create the octavia_65 flavor because it cannot reach the nova API.



Version-Release number of selected component (if applicable):
16.2

How reproducible:
always

Steps to Reproduce:
1.Create octavia composable role with composable services:

OS::TripleO::Services::OctaviaDeploymentConfig
OS::TripleO::Services::OctaviaHealthManager
OS::TripleO::Services::OctaviaHousekeeping
OS::TripleO::Services::OctaviaWorker


2. Only leave in Controller role the following Octavia composable services:
OS::TripleO::Services::OctaviaDeploymentConfig
OS::TripleO::Services::OctaviaApi

3. Deploy with -e /usr/share/openstack-tripleo-heat-templates/environments/services/octavia.yaml


Actual results:
Deployment fails with
Error:

Use 'puppet module list --tree' to see information about modules\\n   (file & line not available)\n<13>Oct 18 09:36:40 puppet-user: Warning: Scope(Oslo::Db[octavia_config]): The idle_timeout parameter is deprecated. Please use connection_recycle_time instead.\n<13>Oct 18 09:36:40 puppet-user: Notice: Compiled catalog for XXXXXXXX.localdomain in environment production in 0.33 seconds\n<13>Oct 18 09:40:12 puppet-user: Error: Failed to apply catalog: Command: 'openstack [\"flavor\", \"list\", \"--quiet\", \"--format\", \"csv\", [\"--long\", \"--all\"]]' has been running for more than 40 seconds (tried 4, for a total of 170 seconds)\n<13>

Expected results:
Deployment succeeds

Additional info:

After creating octavia_65 flavor manually and forcing octavia.conf to use endpoints pointing to internalURL the deployment succeeds.