inventory_builder creates hosts.yaml file with hostnames like "node1",
"node2", etc. Even if specifying override_system_hostname=false, the
output of "kubectl get nodes" shows those hostnames ("node1", etc.)
without using actual hostnames.
To solve this issue, this adds an option USE_REAL_HOSTNAME to get
actual hostnames when creating hosts.yaml file instead of "node1", etc.

This will avoid SSH connection on the local host

tags are not inherited for include_role therefore the change
from include to import

Co-authored-by: Hans Feldt <hafe@users.noreply.github.com>

* Add event-ttl duration

* Fix wrong location

Support for Ambassador OSS as an Ingress Controller when
settings `ingress_ambassador_enabled: true`.

Signed-off-by: Alvaro Saurin <alvaro.saurin@gmail.com>

Now the in-tree cloud provider is deprecated and it is recommended to
the external cloud provider for OpenStack instead.
The doc described how to upgrade from the in-tree cloud provider, but
it is better to describe how to deploy the external cloud provider from
scratch instead for current situation.
This updates the OpenStack doc for this usecase.

* Install Kata Containers as additional container runtime

* Create RuntimeClasses for Kata Containers

* Updated Vagrant to optionally run without Docker as container manager

* Updated Vagrant to optionally use Libvirt nested virtualization

* Add Kata Containers documentation

* Fix lint errors

* Add kata_containers_enabled to kubespray-defaults

* Fixed typo error

* Fixed typo error

* ADD tls cipher suites support

yaml lint

yamllint

* update test case

* update test case

We need to specify either external_openstack_tenant_name or
external_openstack_tenant_id. Those values were checked by seeing they
are defined or they have actual values separately.
However those values are always defined because of the following code
of openstack/defaults/main.yml:

external_openstack_tenant_id: "{{ lookup('env','OS_TENANT_ID')| default(lookup('env','OS_PROJECT_ID'),true) }}"
external_openstack_tenant_name: "{{ lookup('env','OS_TENANT_NAME')| default(lookup('env','OS_PROJECT_NAME'),true) }}"

So even if not specifying both values, those checks could not detect
the misconfiguration. This fixes this to detect the misconfiguration.

* MINOR: Check kernel version before enable modprobe nf_conntrack

* CLEANUP: no more need to ignore error of this task

* MINOR: Fixing yaml and ansible lint error - remove trailling-space

Co-authored-by: Hans Feldt <hafe@users.noreply.github.com>

If the special parameter "$@" is not quoted, the following command will not work:

./kubectl.sh patch storageclass my-storage-class -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'

* Add oraclelinux8 and disable firewalld

Add oraclelinux8 image and disable firewalld on oraclelinux VMs

* Fix Oracle Linux repositories

As documented in: http://yum.oracle.com/getting-started.html#installing-software-from-oracle-linux-yum-server
public-yum-ol7.repo was deprecated on release 7.6. Some repos were integrated into oracle-linux-ol7.repo (i.e.: ol7_latest, ol7_addons) and other are available as packages (epel). This also adds support for oraclelinux8

* Fix to use ansible_distribution_version

Instead of ansible_distribution_major_version

* Update README.md

Add custom dashboard namespace test

* bump csi containers

* bump snapshoter to 2.1.1

On OpenStack history, we used to call "tenant" for separeted namespace.
However we use "project" now instead.
Then we have replaced "tenant" with "project". Then all "TENANT" variables
also are renamed to "PROJECT".
This makes Kubespray search "PROJECT" variable also for newer OpenStack
clouds.