This changes MetalLB contrib to one of addons for deploying MetalLB with
Kubernetes cluster deployment. By the default, Kubespray doesn't deploy
MetalLB addon.

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

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

* 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 additional network configuration options to external Openstack CCM (#6083)

* Change the default version of external openstack cloud controller image to v1.18.1 since there was an issue in v1.18.0 where some IPs of the private network were ignored

* Change Network section in external-openstack-cloud-config.j2 to Networking

* Add networking customization information in the openstack documentation

* assembly fallback_ips and no_proxy var only one time on localhost and populate result on all hosts

* add tag always, fix ansible lint errors

* workaround to mitogen issue dw/mitogen#663

* do not gather fact before install python on coreos like distros

* try to pass docker molecule test

* Fix chicken and egg problem with proxy_env not defined on the first envinronment usage.

* Disable fact gathering for the first proxy_env evaluation.

* Move proxy_env var set up from the role defaults to the root playbooks as fact.

* Azure Disk CSI deployment

* Mention Azure CSI support

* Fix: remove unnecessary file

* Typo in documentation

* Add newline to end of file

* GCP Persistent Disk CSI Driver deployment

* Fix MD lint

* Fix Yaml lint

* Upgrade to Kubernetes 1.17.4 - change defaults

* Update ci jobs to previous k8s release (will fix them afterward)

* AWS EBS CSI implementation

* Fixing image repos

* Add OWNERS file

* Fix expressions

* Add csi-driver tag

* Add AWS EBS prefix to variables

* Add AWS EBS CSI Driver documentation

The variable is defined in `kubernetes/preinstall` role and used in several roles. Since `kubernetes/preinstall` is not always included when `ansible-playbook` is run with tag selectors (see #5734 for reason), they will fail, or individual roles must copy the same fact definitions (as in #3846). Moving the definition to the always-included `kubespray-defaults` role will resolve the dependency problem.

Fixed an issue where without a default GW, ansible_default_ipv4 would return an empty dict which passed as a valid fallback_ip dict item (#5394)

* fedora coreos support
- bootstrap and new fact for

* fedora coreos support
- fix bootstrap condition

* fedora coreos support
- allow customize packages for fedora coreos bootstrap

* fedora coreos support
- prevent install ptyhon3 and epel via dnf for fedora coreos

* fedora coreos support
- handle all ostree like os in same way

* fedora coreos support
- handle all ostree like os in same way for crio

* fedora coreos support
- add fcos documentations

* Add AWS ALB Ingress Controller Ansible role

* remove trailing spaces

* update owners

* ALB ingress: update rbac clusterrole and remove role

* Move alb-ingress role to roles/kubernetes-apps/ingress_controller folder

* Kubernetes 1.16.8

* Use 1.16.8 in sample inventory and kubespray-defaults

* download file

* download containers

* fix push image to nodes

* pull if none image on host

* fix

* improve docker image tag checks.
do not pull already cached images

* rebase fix merge conflict

* add support download_run_once when upgrade and scale cluster
add some test with download_run_once

* set default values to temp flag for every download cycle

* add save,load abilty for containerd and crio when download_run_once=true

* return redefine image save/load command to  set_docker_image_facts.yml

* move set command to set_container_facts

* ctr in containerd_bin_dir

* fix order of ctr image export arguments

* temporary disable download_run_once for containerd and crio
due https://github.com/containerd/containerd/issues/4075

* remove unused files

* fix strict yaml linter warning and errors

* refactor logical conditions to pull and cache container images

* remove comment due lint check

* document role

* remove image_load_on_localhost, because cached images are always loaded to docker on remote sites

* remove XXX from debug output

* make cinder csi topology aware

* change feature description do better reflect whats being done

* remove sameas true since it isn't required

* External OpenStack Cloud Controller Manager implementation

* Adding controller image tag

* Minor fixes

* Restructuring the external cloud controller to work with KubeADM

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

* containerd: add proxy support

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* kubespray-defaults: add kube_service_addresses / kube_pods_subnet to no_proxy

CIDR notation in no_proxy is supported by a lot of programs/languages,
including go: https://github.com/golang/go/issues/16704


Without that containerd cannot talk the the API server (kube_apiserver_ip),
but it should not go through an external proxy for the nodes/pods/services

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Change-Id: I3fff04f0211cd9c2e8235acaf51c3aa98abc8bb7

* Deploy Cinder CSI driver to provision volumes over OpenStack

* Deploy Cinder CSI StorageClass

* Cinder CSI doc

* Add support for Kubernetes 1.16.1

* Defaults to 1.16.1

* add 1.16.2 checksums and set new version as default

* correct 1.16.2 checksums and add 1.15.5 checksums