diff --git a/example/config.yml b/example/config.yml
index 19e689b..b7a1d82 100644
--- a/example/config.yml
+++ b/example/config.yml
@@ -16,6 +16,9 @@ OS_HARDEN: false
 CA_EXPIRY: "876000h"
 CERT_EXPIRY: "438000h"
 
+# force to recreate CA and other certs, not suggested to set 'true'
+CHANGE_CA: false
+
 # kubeconfig 配置参数
 CLUSTER_NAME: "cluster1"
 CONTEXT_NAME: "context-{{ CLUSTER_NAME }}"
diff --git a/roles/calico/tasks/main.yml b/roles/calico/tasks/main.yml
index c439032..cd3c648 100644
--- a/roles/calico/tasks/main.yml
+++ b/roles/calico/tasks/main.yml
@@ -23,10 +23,11 @@
       template: src=calico-{{ calico_ver_main }}.yaml.j2 dest={{ cluster_dir }}/yml/calico.yaml
 
     - name: 删除 calico网络
-      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/calico.yaml || echo NotFound"
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/calico.yaml || echo NotFound; sleep 3"
+      when: 'CHANGE_CA|bool'
 
     - name: 运行 calico网络
-      shell: "sleep 5 && {{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/calico.yaml"
+      shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/calico.yaml"
   run_once: true
   connection: local
   tags: force_change_certs
diff --git a/roles/cilium/tasks/main.yml b/roles/cilium/tasks/main.yml
index d629736..f1c748b 100644
--- a/roles/cilium/tasks/main.yml
+++ b/roles/cilium/tasks/main.yml
@@ -10,10 +10,16 @@
     - name: 创建 cilium chart 个性化设置
       template: src=values.yaml.j2 dest={{ cluster_dir }}/yml/cilium-values.yaml
 
+    - name: helm 删除 cilium {{ cilium_ver }}
+      shell: "{{ base_dir }}/bin/helm delete cilium -n kube-system || echo true; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: helm 创建 cilium {{ cilium_ver }}
       shell: "{{ base_dir }}/bin/helm upgrade cilium --install \
               -n kube-system -f {{ cluster_dir }}/yml/cilium-values.yaml \
               {{ base_dir }}/roles/cilium/files/cilium-{{ cilium_ver }}.tgz"
+      tags: force_change_certs
   run_once: true
   connection: local  
 
@@ -36,6 +42,7 @@
   delay: 8
   ignore_errors: true
   connection: local
+  tags: force_change_certs
 
 # hubble-relay 可能需要重启一下
 - name: 重启hubble-relay pod
@@ -44,3 +51,4 @@
   run_once: true
   connection: local
   when: "cilium_hubble_enabled|bool"
+  tags: force_change_certs
diff --git a/roles/cluster-addon/tasks/coredns.yml b/roles/cluster-addon/tasks/coredns.yml
index b28c26a..fee0e8c 100644
--- a/roles/cluster-addon/tasks/coredns.yml
+++ b/roles/cluster-addon/tasks/coredns.yml
@@ -2,6 +2,12 @@
     - name: 准备 DNS的部署文件
       template: src=dns/coredns.yaml.j2 dest={{ cluster_dir }}/yml/coredns.yaml
 
+    - name: 删除coredns部署
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/coredns.yaml || echo true; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: 创建coredns部署
       shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/coredns.yaml"
+      tags: force_change_certs
   when: 'dns_install == "yes"'
diff --git a/roles/cluster-addon/tasks/dashboard.yml b/roles/cluster-addon/tasks/dashboard.yml
index 209216b..cee0965 100644
--- a/roles/cluster-addon/tasks/dashboard.yml
+++ b/roles/cluster-addon/tasks/dashboard.yml
@@ -9,6 +9,12 @@
       - "admin-user-sa-rbac.yaml"
       - "read-user-sa-rbac.yaml"
 
+    - name: 删除 dashboard部署
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/dashboard/ || echo true; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: 创建 dashboard部署
       shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/dashboard/"
+      tags: force_change_certs
   when: 'dashboard_install == "yes"'
diff --git a/roles/cluster-addon/tasks/main.yml b/roles/cluster-addon/tasks/main.yml
index ad1b911..85076aa 100644
--- a/roles/cluster-addon/tasks/main.yml
+++ b/roles/cluster-addon/tasks/main.yml
@@ -12,22 +12,22 @@
 - debug: var="CLUSTER_DNS_SVC_IP"
 
 - import_tasks: coredns.yml
-  when: '"coredns" not in pod_info.stdout and dns_install == "yes"'
+  when: '"coredns" not in pod_info.stdout or CHANGE_CA|bool'
 
 - import_tasks: nodelocaldns.yml
-  when: '"node-local-dns" not in pod_info.stdout and ENABLE_LOCAL_DNS_CACHE|bool'
+  when: '"node-local-dns" not in pod_info.stdout or CHANGE_CA|bool'
 
 - import_tasks: metrics-server.yml
-  when: '"metrics-server" not in pod_info.stdout and metricsserver_install == "yes"'
+  when: '"metrics-server" not in pod_info.stdout or CHANGE_CA|bool'
 
 - import_tasks: dashboard.yml
-  when: '"kubernetes-dashboard" not in pod_info.stdout and dashboard_install == "yes"'
+  when: '"kubernetes-dashboard" not in pod_info.stdout or CHANGE_CA|bool'
 
 - import_tasks: prometheus.yml
   when: 'prom_install == "yes"'
 
 - import_tasks: nfs-provisioner.yml
-  when: '"nfs-client-provisioner" not in pod_info.stdout and nfs_provisioner_install == "yes"'
+  when: '"nfs-client-provisioner" not in pod_info.stdout or CHANGE_CA|bool'
 
 - import_tasks: cilium_connectivity_check.yml
   when: 'CLUSTER_NETWORK == "cilium"'
diff --git a/roles/cluster-addon/tasks/metrics-server.yml b/roles/cluster-addon/tasks/metrics-server.yml
index 7b86a59..0770c6d 100644
--- a/roles/cluster-addon/tasks/metrics-server.yml
+++ b/roles/cluster-addon/tasks/metrics-server.yml
@@ -2,6 +2,12 @@
     - name: 准备 metrics-server的部署文件
       template: src=metrics-server/components.yaml.j2 dest={{ cluster_dir }}/yml/metrics-server.yaml
 
+    - name: 删除 metrics-server部署
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/metrics-server.yaml || echo true; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: 创建 metrics-server部署
       shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/metrics-server.yaml"
+      tags: force_change_certs
   when: 'metricsserver_install == "yes"'
diff --git a/roles/cluster-addon/tasks/nodelocaldns.yml b/roles/cluster-addon/tasks/nodelocaldns.yml
index be47fd1..e82416c 100644
--- a/roles/cluster-addon/tasks/nodelocaldns.yml
+++ b/roles/cluster-addon/tasks/nodelocaldns.yml
@@ -7,6 +7,12 @@
       template: src=dns/nodelocaldns-iptables.yaml.j2 dest={{ cluster_dir }}/yml/nodelocaldns.yaml
       when: "PROXY_MODE == 'iptables'"
 
+    - name: 删除dnscache部署
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/nodelocaldns.yaml || echo true; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: 创建dnscache部署
       shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/nodelocaldns.yaml"
+      tags: force_change_certs
   when: 'ENABLE_LOCAL_DNS_CACHE|bool'
diff --git a/roles/cluster-addon/tasks/prometheus.yml b/roles/cluster-addon/tasks/prometheus.yml
index 345dc73..f02ff01 100644
--- a/roles/cluster-addon/tasks/prometheus.yml
+++ b/roles/cluster-addon/tasks/prometheus.yml
@@ -23,7 +23,11 @@
             -ca-key=ca-key.pem \
             -config=ca-config.json \
             -profile=kubernetes etcd-client-csr.json|{{ base_dir }}/bin/cfssljson -bare etcd-client"
-      when: '"etcd-client-cert" not in secrets_info.stdout'
+      when: '"etcd-client-cert" not in secrets_info.stdout or CHANGE_CA|bool'
+
+    - name: 删除 etcd-client-cert
+      shell: "{{ base_dir }}/bin/kubectl delete secret -n {{ prom_namespace }} etcd-client-cert || echo true"
+      when: 'CHANGE_CA|bool'
     
     - name: 创建 etcd-client-cert
       shell: "cd {{ cluster_dir }}/ssl && \
@@ -31,15 +35,20 @@
             --from-file=etcd-ca=ca.pem \
             --from-file=etcd-client=etcd-client.pem \
             --from-file=etcd-client-key=etcd-client-key.pem"
-      when: '"etcd-client-cert" not in secrets_info.stdout'
+      when: '"etcd-client-cert" not in secrets_info.stdout or CHANGE_CA|bool'
 
     - debug: var="K8S_VER"
 
     - name: 创建 prom chart 个性化设置
       template: src=prometheus/values.yaml.j2 dest={{ cluster_dir }}/yml/prom-values.yaml
 
+    - name: helm 删除 kube-prometheus-stack {{ prom_chart_ver }}
+      shell: "{{ base_dir }}/bin/helm delete prometheus -n {{ prom_namespace }} || echo true; sleep 3"
+      when: 'CHANGE_CA|bool'
+
     - name: helm 创建 kube-prometheus-stack {{ prom_chart_ver }}
       shell: "{{ base_dir }}/bin/helm upgrade prometheus --install \
               -n {{ prom_namespace }} -f {{ cluster_dir }}/yml/prom-values.yaml \
               {{ base_dir }}/roles/cluster-addon/files/kube-prometheus-stack-{{ prom_chart_ver }}.tgz"
   when: 'prom_install == "yes"'
+  tags: force_change_certs
diff --git a/roles/cluster-addon/vars/main.yml b/roles/cluster-addon/vars/main.yml
index 23e2510..d6c93d3 100644
--- a/roles/cluster-addon/vars/main.yml
+++ b/roles/cluster-addon/vars/main.yml
@@ -1,4 +1 @@
 # default values
-
-# CHANGE_CA: when set true, force to change ca certs
-CHANGE_CA: false
diff --git a/roles/deploy/vars/main.yml b/roles/deploy/vars/main.yml
index 9d6d06e..94525c5 100644
--- a/roles/deploy/vars/main.yml
+++ b/roles/deploy/vars/main.yml
@@ -4,6 +4,3 @@ KUBE_APISERVER: "https://{{ groups['kube_master'][0] }}:{{ SECURE_PORT }}"
 #
 ADD_KCFG: false
 CUSTOM_EXPIRY: "438000h"
-
-# CHANGE_CA: when set true, force to change ca certs
-CHANGE_CA: false
diff --git a/roles/flannel/tasks/main.yml b/roles/flannel/tasks/main.yml
index 304121b..0f7f8bb 100644
--- a/roles/flannel/tasks/main.yml
+++ b/roles/flannel/tasks/main.yml
@@ -11,10 +11,18 @@
   run_once: true
   connection: local
 
+- name: 删除 flannel网络
+  shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/flannel.yaml || echo true; sleep 3"
+  run_once: true
+  connection: local
+  tags: force_change_certs
+  when: 'CHANGE_CA|bool'
+
 - name: 运行 flannel网络
   shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/flannel.yaml"
   run_once: true
   connection: local
+  tags: force_change_certs
 
 - name: 删除默认cni配置
   file: path=/etc/cni/net.d/10-default.conf state=absent
@@ -27,3 +35,4 @@
   delay: 8
   ignore_errors: true
   connection: local
+  tags: force_change_certs
diff --git a/roles/kube-ovn/tasks/main.yml b/roles/kube-ovn/tasks/main.yml
index 811480a..b953234 100644
--- a/roles/kube-ovn/tasks/main.yml
+++ b/roles/kube-ovn/tasks/main.yml
@@ -13,11 +13,19 @@
       - kube-ovn.yaml
       - ovn.yaml
 
+    - name: 删除 kube-ovn网络
+      shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/crd.yaml; \
+        {{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/ovn.yaml; \
+        {{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/kube-ovn.yaml; sleep 3"
+      tags: force_change_certs
+      when: 'CHANGE_CA|bool'
+
     - name: 运行 kube-ovn网络
       shell: "{{ base_dir }}/bin/kubectl label node {{ OVN_DB_NODE }} kube-ovn/role=master --overwrite && \
         {{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/crd.yaml && sleep 5 && \
         {{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/ovn.yaml && sleep 5 && \
         {{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/kube-ovn.yaml"
+      tags: force_change_certs
   run_once: true
   connection: local
 
@@ -37,3 +45,4 @@
   delay: 8
   ignore_errors: true
   connection: local
+  tags: force_change_certs
diff --git a/roles/kube-router/tasks/main.yml b/roles/kube-router/tasks/main.yml
index 4d9189f..97ef0e3 100644
--- a/roles/kube-router/tasks/main.yml
+++ b/roles/kube-router/tasks/main.yml
@@ -11,11 +11,19 @@
   run_once: true
   connection: local
 
+- name: 删除 kube-router DaemonSet
+  shell: "{{ base_dir }}/bin/kubectl delete -f {{ cluster_dir }}/yml/kube-router.yaml || echo true; sleep 3"
+  run_once: true
+  connection: local
+  tags: force_change_certs
+  when: 'CHANGE_CA|bool'
+
 # 只需单节点执行一次
 - name: 运行 kube-router DaemonSet
   shell: "{{ base_dir }}/bin/kubectl apply -f {{ cluster_dir }}/yml/kube-router.yaml"
   run_once: true
   connection: local
+  tags: force_change_certs
 
 # 删除原有cni配置
 - name: 删除默认cni配置 
@@ -30,3 +38,4 @@
   delay: 8
   ignore_errors: true
   connection: local
+  tags: force_change_certs