Include custom policy.json files in service-api.json.j2 files

Change-Id: Ic55bfc6f61131aa72c3497ce8b2282056bcc7f92
Partially-Implements: blueprint custom-policies

* Merge prechecks.yml and site.yml playbook
* Create empty precheck.yml into all roles.

Change-Id: I8a138558a26c0a2a66c5fd48ed37be657c99c1dd
Implements: blueprint condition-pre-check

Allow operators to use their custom policy files.
Avoid maintain policy files in kolla repos, only copying
the files when an operator add their custom config.

Implements: blueprint custom-policies
Change-Id: Icf3c961b87cbc7a1f1dd2ffbfffcf271d151d862

do_reconfigure.yml is introduced to use serial directive. But we use
it in wrong. Now serial has moved to playbook file. So it is time to
remove the do_reconfigure.yml file

Closes-Bug: #1628152
Change-Id: I8d42d27e6bc302a0e575b0353956eaef9b2ca9fd

Apply a clear syntax adding missing spaces

TrivialFix
Change-Id: I4046ffc43d58db0b667e661aec83714bc67d8dbb

This parameter is usually not used and should not be provied in the
template.

TrivialFix

Change-Id: I4faea2127b741e06e327dd3e65387678d0bb0527

Useful for upgrade etc., which is preferablly done serially.

Example usage: tools/kolla-ansible deploy OR tools/kolla-ansible upgrade

Closes-Bug: #1576708

DocImpact

Change-Id: I34b2e16f8ce53e472a4682a4738c4ac0f5abf00c

Migrate to full variable syntax in with_ loop for
manila and tempest.

TrivialFix
Partial-Implements: bp ansible2

Change-Id: Ic68fd6123f0cd5bd0035e139e89f7b569574074c

TrivialFix

Change-Id: I5ba19671a36eb2aab3bda96dd66486422cbc9cf7

DocImpact

Implments: blueprint ansible-tempest
Change-Id: Iadd86d9d91438f056c433b9a2016f32587c92878