c12s-kubespray/roles/kubernetes/master/tasks/kubeadm-upgrade.yml

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---
- name: kubeadm | Upgrade first master
command: >-
timeout -k 600s 600s
{{ bin_dir }}/kubeadm
upgrade apply -y {{ kube_version }}
--config={{ kube_config_dir }}/kubeadm-config.yaml
--ignore-preflight-errors=all
--allow-experimental-upgrades
--allow-release-candidate-upgrades
--etcd-upgrade=false
--force
register: kubeadm_upgrade
# Retry is because upload config sometimes fails
retries: 3
when: inventory_hostname == groups['kube-master']|first
failed_when: kubeadm_upgrade.rc != 0 and "field is immutable" not in kubeadm_upgrade.stderr
notify: Master | restart kubelet
# FIXME: https://github.com/kubernetes/kubeadm/issues/1498 remove stdout_lines
# check after issue is fixed
- name: kubeadm | Upgrade other masters
command: >-
timeout -k 600s 600s
{{ bin_dir }}/kubeadm
upgrade apply -y {{ kube_version }}
--config={{ kube_config_dir }}/kubeadm-config.yaml
--ignore-preflight-errors=all
--allow-experimental-upgrades
--allow-release-candidate-upgrades
--etcd-upgrade=false
--force
register: kubeadm_upgrade
when: inventory_hostname != groups['kube-master']|first
failed_when:
- kubeadm_upgrade.rc != 0
- '"field is immutable" not in kubeadm_upgrade.stderr'
- kubeadm_upgrade.stdout_lines | length > 1
notify: Master | restart kubelet