containerd support (#4664)

* Add limited containerd support

Containerd support for Ubuntu + Calico

* Added CRI-O support for ubuntu

* containerd support.

* Reset  containerd support.

* fix lint.

* implemented feedback

* Change task name cri xx instead of cri-o in reset task and timeout condition.

* set crictl to fixed version

* Use docker-ce's container.io package for containerd.

* Add check containerd is installable or not.

* Avoid stop docker when use containerd and optimize retry for reset.

* Add config.toml.

* Fixed containerd for kubelet.env.

* Merge PR #4629

* Remove unused ubuntu variable for containerd

* Polish code for containerd and cri-o

* Refactoring cri socket configuration.

* Configurable conmon.

* Remove unused crictl/runc download

* Now crictl and runc is downloaded by common crictl.yml.

* fixed yamllint error

* Fixed brokenfiles by conflict.

* Remove commented line in config.toml

* Remove readded v1.12.x version

* Fixed broken set_docker_image_facts

* Fix yamllint errors.

* Remove unused apt source

* Fix crictl could not be installed

* Add containerd config from skolekonov's PR #4601

roles/container-engine/cri-o/vars/ubuntu.yml

@@ -0,0 +1,6 @@
+---
+crio_packages:
+  - "cri-o-{{ kube_version | regex_replace('^v(?P<major>\\d+).(?P<minor>\\d+).(?P<patch>\\d+)$', '\\g<major>.\\g<minor>') }}"
+
+crio_service: crio
+crio_conmon: /usr/lib/crio/bin/conmon