This patch add configuration options for tenant network types and type
drivers. Both lists are checked so that tenant types are listed in
drivers. For ironic 'flat' driver is mandatory and is added explicitly
into ironic prechecks.

Change-Id: Ie5775001165412910a258cbed2d2ebbb8ebbd879
Closes-Bug: #1694725

Useful api_interface_address variable has been define here:
https://github.com/openstack/kolla-ansible/blob/master/ansible/group_vars/all.yml#L57
In order to simplify codebase we must use it as much as possible.

Change-Id: I18fec19bf69e05a22a4142a9cd1165eccd022455

wait_for module waits 300 seconds for the port started or stopped.  This
is meaningless and useless in precheck. This patch change timeout to 1
seconds.

Change-Id: I9b251ec4ba17ce446655917e8ef5e152ef947298
Closes-Bug: #1688152

- add the missing "API"

Change-Id: I06ccf48047d1b4ea493d169f78d95c09b7945a27

- remove the unnecessary blank
- add "ironic_inspector" into its own prechecks and haproxy prechecks

Change-Id: Id542971057a9116eef679f1eb0827266eb18ba30
Closes-bug: #1668178

There is not prechecks for Ironic kernel and initramfs files, this
patch add it.

Change-Id: I7e576eeff02310170d51a4585cbda6c465a29e0d
Closes-bug: #1667544

Change-Id: Iba8a87757ac9ead27c90c9d426977077d442a04e
Partially-implements: blueprint condition-pre-check

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

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

TrivialFix

Change-Id: Ib31ef8e1067e4249bb39959aefb5d3de51fad89c

- This change indroduces a merge_yaml action_plugin
- This change generates bifrost yaml configs.

Change-Id: I9814e6a5d55cbd46c4b60c06ed70ed54a575bd2f
Implements: blueprint bifrost-support

This partially implements iscsi and lvm2 support for cinder
in Kolla. Adds ansible code for iscsid and tgtd containers.

Change-Id: I2a4cfcf104397396ea61a09637d9ef3fc77b515f
Partially-Implements: blueprint iscsi-lvm2-docker

DocImpact

Partially-implements: bp kolla-reconfig
Change-Id: I9738e80960bcfbef18d1ef1b7942f81c45684e85

After introduction of pull action and turing every main.yml into
{{action}}.yml we lost ability to perform upgrade

Change-Id: Ie9fa2cd083b061033abc733fba53d54f9c55e393
Fixes-Bug: #1538210