Merge pull request #2416 from riverzhang/delete-node

Remove nodes

remove-node.yml

+---
+
+- hosts: all
+  gather_facts: true
+
+- hosts: etcd:k8s-cluster:vault:calico-rr
+  vars_prompt:
+    name: "delete_nodes_confirmation"
+    prompt: "Are you sure you want to delete nodes state? Type 'yes' to delete nodes."
+    default: "no"
+    private: no
+
+  pre_tasks:
+    - name: check confirmation
+      fail:
+        msg: "Delete nodes confirmation failed"
+      when: delete_nodes_confirmation != "yes"
+
+- hosts: kube-master
+  roles:
+    - { role: remove-node/pre-remove, tags: pre-remove }
+
+- hosts: kube-node
+  roles:
+    - { role: reset, tags: reset }
+
+- hosts: kube-master
+  roles:
+    - { role: remove-node/post-remove, tags: post-remove }

roles/remove-node/post-remove/tasks/main.yml

+---
+
+- name: Delete node
+  command: kubectl delete node {{ item }}
+  with_items:
+    - "{{ groups['kube-node'] }}"
+  delegate_to: "{{ groups['kube-master'][0] }}"
+  ignore_errors: yes

roles/remove-node/pre-remove/defaults/main.yml

+---
+drain_grace_period: 300
+drain_timeout: 360s

roles/remove-node/pre-remove/tasks/main.yml

+---
+
+- name: remove-node | Drain node except daemonsets resource
+  command: >-
+    {{ bin_dir }}/kubectl drain
+      --force
+      --ignore-daemonsets
+      --grace-period {{ drain_grace_period }}
+      --timeout {{ drain_timeout }}
+      --delete-local-data {{ item }}
+  with_items:
+    - "{{ groups['kube-node'] }}"
+  failed_when: false
+  delegate_to: "{{ groups['kube-master'][0] }}"
+  ignore_errors: yes