taint node-role.kubernetes.io/master not found

[papanito]

I've reset my kubernetes cluster and re-installed with latest role. I use

kubernetes_allow_pods_on_master: True

Which makes the role fail:

TASK [geerlingguy.kubernetes : Allow pods on master node (if configured).] *******************************************************************************************
fatal: [prds0001]: FAILED! => {"changed": true, "cmd": ["kubectl", "taint", "nodes", "--all", "node-role.kubernetes.io/master-"], "delta": "0:00:00.063716", "end": "2019-08-01 19:31:55.417939", "msg": "non-zero return code", "rc": 1, "start": "2019-08-01 19:31:55.354223", "stderr": "taint \"node-role.kubernetes.io/master:\" not found\ntaint \"node-role.kubernetes.io/master:\" not found", "stderr_lines": ["taint \"node-role.kubernetes.io/master:\" not found", "taint \"node-role.kubernetes.io/master:\" not found"], "stdout": "node/prds0001 untainted", "stdout_lines": ["node/prds0001 untainted"]}

My nodes are running Debian Buster

> cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux 10 (buster)"
NAME="Debian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Here my playbook:

- hosts: servers

  vars:
    - docker_users: ['ansible']
    - docker_edition: 'ce'

    - kubernetes_version: '1.15'
    - kubernetes_version_rhel_package: '1.15.0'
    - kubernetes_allow_pods_on_master: True
    - kubernetes_kubelet_extra_args: ""
    - kubernetes_kubeadm_init_extra_opts: "--apiserver-cert-extra-sans prds0001.intra"
    - kubernetes_apt_repository: "deb http://apt.kubernetes.io/ kubernetes-xenial {{ kubernetes_apt_release_channel }}"

  pre_tasks:
    - name: disable swap
      command: swapoff -a
  
  roles:
    - geerlingguy.docker
    - geerlingguy.kubernetes

[papanito]

I've reapplied the role and this time it passed.

[geerlingguy]

I'll chalk it up to a weird one-time issue. Please reopen if this happens again.

[imranrazakhan]

@papanito i think if taint already tainted nodes it will give this error "taint node-role.kubernetes.io/master not found"