From 2dead130dae025410ccc4ea3dbb9a256771a350b Mon Sep 17 00:00:00 2001
From: liujian <joyceliu@yunify.com>
Date: Thu, 17 Apr 2025 18:12:32 +0800
Subject: [PATCH] feat: add deleteDNS parameter in delete_cluster (#2537)

Signed-off-by: joyceliu <joyceliu@yunify.com>
---
 .../capkk/roles/uninstall/kubernetes/tasks/kubernetes.yaml | 2 +-
 builtin/core/playbooks/delete_cluster.yaml                 | 7 +++++++
 builtin/core/playbooks/vars/delete_cluster.yaml            | 4 +++-
 builtin/core/roles/uninstall/kubernetes/tasks/main.yaml    | 2 +-
 4 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/builtin/capkk/roles/uninstall/kubernetes/tasks/kubernetes.yaml b/builtin/capkk/roles/uninstall/kubernetes/tasks/kubernetes.yaml
index fe11863f..2731d132 100644
--- a/builtin/capkk/roles/uninstall/kubernetes/tasks/kubernetes.yaml
+++ b/builtin/capkk/roles/uninstall/kubernetes/tasks/kubernetes.yaml
@@ -15,7 +15,7 @@
       kubeadm reset -f
     fi
 
-- name: Delete kubelet
+- name: Stop kubelet service
   command: |
     rm -rf /etc/systemd/system/kubelet.service
     rm -rf /etc/systemd/system/kubelet.service.d
diff --git a/builtin/core/playbooks/delete_cluster.yaml b/builtin/core/playbooks/delete_cluster.yaml
index ef92309c..f49f456a 100644
--- a/builtin/core/playbooks/delete_cluster.yaml
+++ b/builtin/core/playbooks/delete_cluster.yaml
@@ -13,6 +13,13 @@
     - uninstall/kubernetes
     - role: uninstall/cri
       when: .deleteCRI
+  post_tasks:
+    - name: delete etc/hosts
+      ignore_errors: true
+      command: |
+        sed -i ':a;$!{N;ba};s@# kubekey hosts BEGIN.*# kubekey hosts END@@' /etc/hosts
+        sed -i ':a;$!{N;ba};s@# kubekey custom BEGIN.*# kubekey custom END@@' /etc/hosts
+      when: .deleteDNS
 
 - hosts:
     - etcd
diff --git a/builtin/core/playbooks/vars/delete_cluster.yaml b/builtin/core/playbooks/vars/delete_cluster.yaml
index e115e419..146b4f74 100644
--- a/builtin/core/playbooks/vars/delete_cluster.yaml
+++ b/builtin/core/playbooks/vars/delete_cluster.yaml
@@ -3,4 +3,6 @@ kubernetes:
 # if deleteCRI
 deleteCRI: false
 # if deleteETCD
-deleteETCD: false
\ No newline at end of file
+deleteETCD: false
+# if true. will delete local dns in /etc/hosts which create by kubekey
+deleteDNS: false
\ No newline at end of file
diff --git a/builtin/core/roles/uninstall/kubernetes/tasks/main.yaml b/builtin/core/roles/uninstall/kubernetes/tasks/main.yaml
index 80829187..6fa44236 100644
--- a/builtin/core/roles/uninstall/kubernetes/tasks/main.yaml
+++ b/builtin/core/roles/uninstall/kubernetes/tasks/main.yaml
@@ -4,7 +4,7 @@
   command: |
     kubeadm reset -f
 
-- name: Delete kubelet
+- name: Stop kubelet service
   command: |
     rm -rf /etc/systemd/system/kubelet.service
     rm -rf /etc/systemd/system/kubelet.service.d