On deployments types where etcd server is splitted from Kube Master, the deployment fails since it cannot find the variable.

* comment out docker_options

* fix yamllint

Change-Id: I830d5bff9fa3c50b83a9eb1fd6dff521f8e55dc1

* 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>

* Remove stale legacy yum docker repo /etc/yum.repos.d/docker.repo

* move task 'Remove legacy docker repo file' to pre-upgrade.yml

* Change dockerproject.org to download.docker.com

dockerproject.org was deprecated in 2017 and has gone down.

* Restore yum repo for containerd

Change-Id: I883bb512a2164a85865b1bd4fb569af0358c8c2b

Co-authored-by: Craig Rodrigues <rodrigc@crodrigues.org>

When running with serial != 100%, like upgrade_cluster.yml, we need to apply this fixup each time
Problem was introduced in 05dc2b3a

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

Change-Id: I7354d33c7db513e0ee27c9a4cc40e8501c0e1061

Raises limit from 100 to 300 because the default is far too low
and the pod can handle 300 with the given resources.

Change-Id: Ib1eec10da3d09d198933fcfe87291587e58d7cdb

I've tested this update by deploying a containerd / etcd cluster on top CentOS7,
MetalLB + NGINX Ingress. Upgrade using upgrade-cluster.yml

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

Resolves issue where kubectl cache of <v1.16 api schema
interferes with interacting with daemonsets and deployments.

Change-Id: I63b7046958f2008eb144b6da0004c598f945e0ae

* Update from https://github.com/kubernetes-sigs/kubespray/issues/4318#issuecomment-470161397

* Woops I missed a spot

* Fix crictl

* Reload systemd daemon before enabling service

* Typo

* Add crictl template

* Remove seccomp.json for ubuntu

* Set runtime path of runc for ubuntu

* Change path to conmon

Change-Id: I4498d1c0585ee98c23856208d660caadf67cab34

* Rename CI jobs from ubuntu to ubuntu16

* Add CI matrix and script