d692737a13
Optionally do not drain nodes by setting drain_nodes to false Optionally set a labelselector to target which pods should be drained.
48 lines
1.5 KiB
YAML
48 lines
1.5 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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# 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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- set_fact:
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needs_cordoning: >-
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{% if kubectl_node_ready.stdout == "True" and 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: 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_label_selector != "" %}--selector '{{ drain_label_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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