c12s-kubespray/roles/container-engine/validate-container-engine/tasks/main.yml
Kenichi Omichi 7b1dc600d5
Fix the condition of drain on pre-remove task (#8634)
When running cluster.yml for new machines what containerd is already
install but Kubernetes cluster were not installed before, the task
"remove-node | List nodes" is failed like

  "changed": false,
  "cmd": [
    "/usr/local/bin/kubectl", "--kubeconfig",
    "/etc/kubernetes/admin.conf", "get", "nodes", "-o",
    "go-template={{ range .items }}{{ .metadata.name }}
    {{ "\n" }}{{ end }}"
   ],
   ..
   "stderr": "error: stat /etc/kubernetes/admin.conf: no such file or directory",

That was due to lack to check the existing Kubernetes cluster exists
or not before running "kubectl drain" command.
This adds the check to avoid the issue.
2022-03-21 01:39:10 -07:00

138 lines
3.2 KiB
YAML

---
- name: validate-container-engine | check if fedora coreos
stat:
path: /run/ostree-booted
get_attributes: no
get_checksum: no
get_mime: no
register: ostree
- name: validate-container-engine | set is_ostree
set_fact:
is_ostree: "{{ ostree.stat.exists }}"
- name: Ensure kubelet systemd unit exists
stat:
path: "/etc/systemd/system/kubelet.service"
register: kubelet_systemd_unit_exists
- name: Check if containerd is installed
find:
file_type: file
recurse: yes
use_regex: yes
patterns:
- containerd.service$
paths:
- /lib/systemd
- /etc/systemd
- /run/systemd
register: containerd_installed
- name: Check if docker is installed
find:
file_type: file
recurse: yes
use_regex: yes
patterns:
- docker.service$
paths:
- /lib/systemd
- /etc/systemd
- /run/systemd
register: docker_installed
- name: Check if crio is installed
find:
file_type: file
recurse: yes
use_regex: yes
patterns:
- crio.service$
paths:
- /lib/systemd
- /etc/systemd
- /run/systemd
register: crio_installed
- name: Uninstall containerd
block:
- name: Drain node
include_role:
name: remove-node/pre-remove
apply:
tags:
- pre-remove
when:
- kubelet_systemd_unit_exists
- name: Stop kubelet
service:
name: kubelet
state: stopped
when:
- kubelet_systemd_unit_exists
- name: Remove Containerd
include_role:
name: container-engine/containerd
apply:
tags:
- reset_containerd
when:
- not (is_ostree or (ansible_distribution == "Flatcar Container Linux by Kinvolk") or (ansible_distribution == "Flatcar"))
- container_manager != "containerd"
- docker_installed.matched == 0
- containerd_installed.matched > 0
- name: Uninstall docker
block:
- name: Drain node
include_role:
name: remove-node/pre-remove
apply:
tags:
- pre-remove
when:
- kubelet_systemd_unit_exists
- name: Stop kubelet
service:
name: kubelet
state: stopped
when:
- kubelet_systemd_unit_exists
- name: Remove Docker
include_role:
name: container-engine/docker
apply:
tags:
- reset_docker
when:
- not (is_ostree or (ansible_distribution == "Flatcar Container Linux by Kinvolk") or (ansible_distribution == "Flatcar"))
- container_manager != "docker"
- docker_installed.matched > 0
- name: Uninstall crio
block:
- name: Drain node
include_role:
name: remove-node/pre-remove
apply:
tags:
- pre-remove
when:
- kubelet_systemd_unit_exists
- name: Stop kubelet
service:
name: kubelet
state: stopped
when:
- kubelet_systemd_unit_exists
- name: Remove CRI-O
include_role:
name: container-engine/crio
apply:
tags:
- reset_crio
when:
- not (is_ostree or (ansible_distribution == "Flatcar Container Linux by Kinvolk") or (ansible_distribution == "Flatcar"))
- container_manager != "crio"
- crio_installed.matched > 0