kubernetes.yml

---
- name: K8s/{{ node_role }} | Wait for kube-apiserver
  delegate_to: >-
    {{ inventory_hostname if inventory_hostname in groups.kubernetes_master else
      groups.kubernetes_master[0] }}
  import_tasks: kubernetes/utils/wait-for-kube-apiserver.yml

# During HA control plane upgrade server address in kubeconfig is switched to local for
#   * compatibility between client and server versions
#   * identifying correct server version
- name: K8s/{{ node_role }} | Switch apiserver address to local
  include_tasks: kubernetes/utils/set-local-apiserver.yml # sets kubectl_context_cluster
  when:
    - groups.kubernetes_master | length > 1
    - inventory_hostname in groups.kubernetes_master

- name: K8s/{{ node_role }} | Include get-kubelet-version.yml
  import_tasks: kubernetes/get-kubelet-version.yml
  delegate_to: "{{ groups.kubernetes_master[0] }}"

- name: K8s/{{ node_role }} | Set kubelet version as fact
  set_fact:
    initial_kubelet_version: "{{ kubelet_version.stdout }}"

- name: K8s/{{ node_role }} | Check if upgrade state file exists
  stat:
    path: "{{ kubernetes.upgrade_state_file_path }}"
    get_attributes: false
    get_checksum: false
    get_mime: false
  register: k8s_upgrade_state_file_status

- name: Upgrade masters then nodes
  vars:
    version: "{{ ver }}"
    cni_version: "{{ cni_ver }}"
  when:
    - k8s_upgrade_state_file_status.stat.exists
        or initial_kubelet_version is version('v' + version, '<')
  block:
    - name: K8s/{{ node_role }} | Create K8s upgrade state file
      copy:
        dest: "{{ kubernetes.upgrade_state_file_path }}"
        content: Upgrade started
        mode: u=rw,g=r,o=

    - name: K8s/{{ node_role }} | Upgrade first master to v{{ version }}
      include_tasks: kubernetes/upgrade-master0.yml
      when:
        - inventory_hostname == groups.kubernetes_master[0]

    - name: K8s/{{ node_role }} | Upgrade next master to v{{ version }}
      include_tasks: kubernetes/upgrade-masterN.yml
      when:
        - inventory_hostname in groups.kubernetes_master[1:]

    - name: K8s/{{ node_role }} | Upgrade node to v{{ version }}
      when:
        - groups.kubernetes_node is defined
        - inventory_hostname in groups.kubernetes_node
      include_tasks: kubernetes/upgrade-node.yml

    - name: K8s/{{ node_role }} | Remove K8s upgrade state file
      file:
        path: "{{ kubernetes.upgrade_state_file_path }}"
        state: absent

- name: K8s/{{ node_role }} | Switch apiserver address to HAProxy
  command: |-
    kubectl config set-cluster {{ kubectl_context_cluster.stdout }} --server=https://localhost:3446
  when:
    - groups.kubernetes_master | length > 1
    - inventory_hostname in groups.kubernetes_master
  changed_when: true

- name: K8s/{{ node_role }} | Upgrade internal haproxy load-balancer
  import_tasks: kubernetes/upgrade-haproxy.yml