From 12c78e622bc66ae2ef2aa0a890d8e1274a7eb4c0 Mon Sep 17 00:00:00 2001
From: "rong.zhang" <rong.zhang@easystack.cn>
Date: Mon, 5 Mar 2018 15:02:47 +0800
Subject: [PATCH] Remove nodes
Drain node except daemonsets resource
Use reset cluser for delete deploy data
Then delete node
---
remove-node.yml | 29 +++++++++++++++++++
roles/remove-node/post-remove/tasks/main.yml | 8 +++++
.../remove-node/pre-remove/defaults/main.yml | 3 ++
roles/remove-node/pre-remove/tasks/main.yml | 15 ++++++++++
4 files changed, 55 insertions(+)
create mode 100644 remove-node.yml
create mode 100644 roles/remove-node/post-remove/tasks/main.yml
create mode 100644 roles/remove-node/pre-remove/defaults/main.yml
create mode 100644 roles/remove-node/pre-remove/tasks/main.yml
diff --git a/remove-node.yml b/remove-node.yml
new file mode 100644
index 000000000..fbc5bc8ba
--- /dev/null
+++ b/remove-node.yml
@@ -0,0 +1,29 @@
+---
+
+- 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 }
diff --git a/roles/remove-node/post-remove/tasks/main.yml b/roles/remove-node/post-remove/tasks/main.yml
new file mode 100644
index 000000000..395f9986b
--- /dev/null
+++ b/roles/remove-node/post-remove/tasks/main.yml
@@ -0,0 +1,8 @@
+---
+
+- name: Delete node
+ command: kubectl delete node {{ item }}
+ with_items:
+ - "{{ groups['kube-node'] }}"
+ delegate_to: "{{ groups['kube-master'][0] }}"
+ ignore_errors: yes
diff --git a/roles/remove-node/pre-remove/defaults/main.yml b/roles/remove-node/pre-remove/defaults/main.yml
new file mode 100644
index 000000000..e9e1ba28d
--- /dev/null
+++ b/roles/remove-node/pre-remove/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+drain_grace_period: 300
+drain_timeout: 360s
diff --git a/roles/remove-node/pre-remove/tasks/main.yml b/roles/remove-node/pre-remove/tasks/main.yml
new file mode 100644
index 000000000..12091917a
--- /dev/null
+++ b/roles/remove-node/pre-remove/tasks/main.yml
@@ -0,0 +1,15 @@
+---
+
+- 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
--
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