remove_node.yml does not work - No kubernetes.core.k8s module in Ansible 2.9

[Shabahang]

Environment:

• Cloud provider or hardware configuration:
  On-premise

• OS (printf "$(uname -srm)\n$(cat /etc/os-release)\n"):

Linux 3.10.0-1160.el7.x86_64 x86_64
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

• Version of Ansible (ansible --version):
  ansible 2.9.16
  ansible python module location = /usr/local/lib/python3.6/site-packages/ansible

• Version of Python (python --version):
  python version = 3.6.8 (default, Nov 16 2020, 16:55:22) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]

Kubespray version (commit) (git rev-parse --short HEAD):
4ef2cf4

Network plugin used:
calico

Full inventory with variables (ansible -i inventory/sample/inventory.ini all -m debug -a "var=hostvars[inventory_hostname]"):

Command used to invoke ansible:
ansible-playbook -i inventory/<CLUSTER_NAME>/hosts.yaml remove-node.yml -e node=node1

Output of ansible run:

`ERROR! couldn't resolve module/action 'kubernetes.core.k8s'. This often indicates a misspelling, missing collection, or incorrect module path.

The error appears to be in '/root/kubespray/roles/remove-node/remove-etcd-node/tasks/main.yml': line 67, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

# Delete node from kubeadm-config
- name: Update kubeadm-config configmap removing control-plane no longer existing endpoints
  ^ here
`

Anything else do we need to know:
Using Ansible 2.9 fails running remove-node.yml.
in version 2.9 there is no kubernetes.core.k8s module, while 2.9 is a supported versions.

[cristicalin]

Broken by #8244

/cc @Alvaro-Campesino

[Alvaro-Campesino]

Hi,

I am checking it, I am realizing I tested it with ansible 2.10 which has moved into the kubernetes.core.k8s module

I could manage it with a command instead of using the k8s module or the kubernetes.core.k8s module.

Not sure right now if k8s is there by default. I will check on it.

[floryut]

What about using the https://github.com/kubernetes-sigs/kubespray/blob/master/library/kube.py plugin ?

Like

kubespray/roles/kubernetes-apps/metallb/tasks/main.yml

Lines 44 to 48 in bdb923d

	kube:
	name: "MetalLB"
	kubectl: "{{ bin_dir }}/kubectl"
	filename: "{{ kube_config_dir }}/{{ item.item }}"
	state: "{{ item.changed | ternary('latest','present') }}"

[Alvaro-Campesino]

Perfect, I will deliver a solution that provides the same results using this plugin

[Alvaro-Campesino]

Well @floryut , I am checking kube does not support configmaps or operations not meant for creating, replacing or deleting the supported resources. So it makes it difficult to make a lookup of a configmap in order to update it.

Meaning that the best approach without updating this plugin, which will lead to it doing same things done by kubernetes.core.k8s , is to use command. Not really happy with any of the options (updating the plugin or using command, i will think about it over the weekend). I guess I will end up tangling the kube.py.