69 lines
2 KiB
YAML
69 lines
2 KiB
YAML
---
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# Node Ready: type = ready, status = True
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# Node NotReady: type = ready, status = Unknown
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- name: See if node is in ready state
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shell: >-
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{{ bin_dir }}/kubectl get node {{ inventory_hostname }}
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-o jsonpath='{ range .status.conditions[?(@.type == "Ready")].status }{ @ }{ end }'
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register: kubectl_node_ready
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delegate_to: "{{ groups['kube-master'][0] }}"
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failed_when: false
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changed_when: false
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# SchedulingDisabled: unschedulable = true
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# else unschedulable key doesn't exist
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- name: See if node is schedulable
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shell: >-
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{{ bin_dir }}/kubectl get node {{ inventory_hostname }}
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-o jsonpath='{ .spec.unschedulable }'
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register: kubectl_node_schedulable
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delegate_to: "{{ groups['kube-master'][0] }}"
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failed_when: false
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changed_when: false
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- name: Set if node needs cordoning
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set_fact:
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needs_cordoning: >-
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{% if kubectl_node_ready.stdout == "True" and not kubectl_node_schedulable.stdout -%}
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true
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{%- else -%}
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false
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{%- endif %}
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- name: Cordon node
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command: "{{ bin_dir }}/kubectl cordon {{ inventory_hostname }}"
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delegate_to: "{{ groups['kube-master'][0] }}"
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when: needs_cordoning
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- name: Check kubectl version
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command: "{{ bin_dir }}/kubectl version --client --short"
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register: kubectl_version
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delegate_to: "{{ groups['kube-master'][0] }}"
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run_once: yes
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changed_when: false
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when:
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- drain_nodes
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- needs_cordoning
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- drain_pod_selector
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- name: Ensure minimum version for drain label selector if necessary
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assert:
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that: "kubectl_version.stdout.split(' ')[-1] is version('v1.10.0', '>=')"
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when:
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- drain_nodes
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- needs_cordoning
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- drain_pod_selector
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- name: Drain node
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command: >-
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{{ bin_dir }}/kubectl drain
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--force
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--ignore-daemonsets
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--grace-period {{ drain_grace_period }}
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--timeout {{ drain_timeout }}
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--delete-local-data {{ inventory_hostname }}
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{% if drain_pod_selector %}--pod-selector '{{ drain_pod_selector }}'{% endif %}
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delegate_to: "{{ groups['kube-master'][0] }}"
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when:
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- drain_nodes
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- needs_cordoning
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