* Calico: make calico_min_version check relevant

* Calico: only check currently installed version against the oldest supported version by the previous release

* CSI: update CSI snapshot CRDs

* CSI: update snapshot controller tag version with kubernetes specific versions

* CSI: allow enabling csi_snapshot_controller independent of Cinder CSI

* CSI: Align csi-snapshot-controller with upstream and use a Deployment instead of a StatefulSet

* Enable Graceful Node Shutdown for Kubernetes >= 1.21.0

* Add sample graceful shutdown parameters

* Docker/Containerd: move downloads urls to containerd-common

* gVisor: initial support for gVisor container runtime

Signed-off-by: Cedric Hnyda <cedric.hnyda@itera.io>

Signed-off-by: Cedric Hnyda <cedric.hnyda@itera.io>

* Add krew support

* Add reset for krew

* Update install krew(local)

* ansible lint

* yamllint

* fix krew default vars

* fix kubectl_localhost mode

* replace include

* fix e206

* rename ansible groups to use _ instead of -

k8s-cluster -> k8s_cluster
k8s-node -> k8s_node
calico-rr -> calico_rr
no-floating -> no_floating

Note: kube-node,k8s-cluster groups in upgrade CI
      need clean-up after v2.16 is tagged

* ensure old groups are mapped to the new ones

* Add nerdctl cli tool for containerd user

* Add nerdctl enable option

* Add nerdctl enable option and update nerdctl version to 0.8.0

Use kubeadm_feature_gates instead of kube_feature_gates to leverage kubeadm feature gates and not to interfere with k8s components feature gates (#7447)

* Set containerd version to 1.4.3

* Set containerd version to 1.4.4

Co-authored-by: Barry Melbourne <9964974+bmelbourne@users.noreply.github.com>

* Allow connecting to bastion via non-standard port

* Fix bastion connection when ansible_port is not provided

This replaces kube-master with kube_control_plane because of [1]:

  The Kubernetes project is moving away from wording that is
  considered offensive. A new working group WG Naming was created
  to track this work, and the word "master" was declared as offensive.
  A proposal was formalized for replacing the word "master" with
  "control plane". This means it should be removed from source code,
  documentation, and user-facing configuration from Kubernetes and
  its sub-projects.

NOTE: The reason why this changes it to kube_control_plane not
      kube-control-plane is for valid group names on ansible.

[1]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md#motivation

Signed-off-by: Mikael Johansson <mik.json@gmail.com>

* use external_openstack_lbaas_use_octavia for template openstack-cloud-config

* Delete external_openstack_lbaas_use_octavia from default values. Added description and default values of variables to docs

* markdown fix

* make this simple

* set external_openstack_lbaas_use_octavia in default values

* duplicated variable in doc

This is dead code since 28073c76

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

* Move proxy_env to kubespray-defaults/defaults

There is no reasons to use set_facts here

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

* Ensure kubeadm doesn't use proxy

*_proxy variables might be present in the environment (/etc/environment, bash profile, ...)
When this is the case we end up with those proxy configuration in /etc/kubernetes/manifests/kube-*.yaml manifests

We cannot unset env variables, but kubeadm is nice enough to ignore empty vars
https://github.com/kubernetes/kubernetes/blob/93d288e2a47fa6d497b50d37c8b3a04e91da4228/cmd/kubeadm/app/util/env.go#L27



Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

no_proxy is a pain to get right, and having proxy variables present causes issues
(k8s components get proxy configuration after upgrade, see #7100)

It's better to only configure what require proxy:
- the runtime (containerd/docker/crio)
- the package manager + apt_key
- the download tasks

Tested with the following clusters
- 4 CentOS 8 nodes
- 1 Ubuntu 20.04 node

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

* Improve how we set 'proxy=' in yum.conf or dnf.conf

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

* Fixup spaces in no_proxy

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

* Add svc,svc.{{ dns_domain }} to no_proxy

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