Ensure all references to the Ansible control host are worded as such, to
ensure consistency and avoid potential confusion with the OpenStack
controllers.

Change-Id: Id92e537ccbfdd55287b8eae296f649640c70ce17

remove the duplicated word "the"

Change-Id: I6e3fe6d8277c23b4ae04ba79c0b0f73e72c53661

Change-Id: I2140926828366b86a1cb423275330ae17c55fdcd

Change-Id: I755d0cf9b9302b1698c199088514a0e7242009bd

TrivialFix

Change-Id: I93e0e809341e40da293b9e74ea388d0bc0ff52a8

This enables:

* Disabling MariaDB if external MariaDB is used
* Merging additional configuration with the default Kolla
  provided configuration for MariaDB

Story: 2002704
Task: 22545
Change-Id: I345f56d50dd64b516d563a025ec877bc4a4034e1

The admin network is intended for remote admin access to
the overcloud hosts e.g SSH. If admin_oc_net_name is not set
it will default to provision_oc_net_name for backwards
compatability.

Story: 2002096
Task: 19774

Change-Id: Ib04bbc07f97218d7503000cc363624c60c287822

PowerConnect switches do not support the dellos Ansible modules, since
they are based on DellOS version 4. This role uses the expect module to
perform simple switch configuration.

Change-Id: Icb59aaff75f9faf089423610fecb06598f75e35e
Story: 2002106
Task: 19784

The version of cloud-init included with CentOS7.5 (0.7.9-24)
fails to assign an IP address on VLAN subinterfaces. This
workaround upgrades cloud-init to 18.2 using a private
repository.

Story: 2002610
Task: 22229
Change-Id: Idc570b9ca7558dfd42246c74b1ec0331011d692f

Kolla provides a flag, enable_neutron_provider_networks, to enable
virtualised compute nodes to access provider (e.g. flat, VLAN) networks.

In kayobe, we now connect compute nodes to the external networks when
this flag is set. This ensures that the OVS network on compute nodes
is wired into the external networks.

Change-Id: Ida3d8eb2e2bfc95f6007c105ce410b3e5d360afe
Story: 2002636
Task: 22278

TrivialFix

Change-Id: I022afa3b5cf489eb43e85d58de1009ef8ddb7ded

Story: 2002176
Task: 20042
Change-Id: I2174a4719aaff63fff24e35ce62eab57b369b457

We want to default to running all tox environments under python 3, so
set the basepython value in each environment.

We do not want to specify a minor version number, because we do not
want to have to update the file every time we upgrade python.

We do not want to set the override once in testenv, because that
breaks the more specific versions used in default environments like
py35 and py36.

Change-Id: I9aaae4949e2cf6c8a33fb6fbf8be15e1d09cce44

TrivialFix

Change-Id: I32e53f018e2d8b3f7740fb5fd2cb05074fb17661

a new variable, kolla_enable_ironic_ipxe is added to control whether or not
iPXE is used as the network boot program in ironic. You can set this is in
etc/kayobe/kolla.yml, e.g:

  kolla_enable_ironic_ipxe: True

Change-Id: I7da15e7ceea580e5b7bee7fc732351cbec666f4c
Story: 2001949
Task: 15068
Depends-On: I08fca1864a00afb768494406c49e968920c83ae7

TrivialFix

Change-Id: I8f6aeceb5262d1063d88e3dcb59a689edfe175e5

Raises the maximum Ansible version in requirements.txt to Ansible 2.5.x
for both kayobe and kolla ansible.

Also removes the hack to use a patched parted module for ceph block
device management, as Ansible 2.4 contains the required fix.

Change-Id: I0d2f564eb1ddb63b07829d6f0d918af26887db97
Story: 2001649
Task: 6668

To improve network isolation it is desirable to perform
cleaning on a separate network. A new network, `cleaning_net`
was added. If cleaning_net_name is not overriden cleaning
will still be performed on the workload provisioning network
to maintain backwards compatability.

Story: 2002097
Task: 19775
Change-Id: I7dd246ca830820f9c2468b281f6ac8f0db2e9cbe

Change-Id: I976cd0727219314150ed5b1b6f715756151a0089
Story: 2002109
Task: 19788