diff --git a/01.prepare.yml b/01.prepare.yml
index efc01e4..f82d633 100644
--- a/01.prepare.yml
+++ b/01.prepare.yml
@@ -8,6 +8,7 @@
   - kube-cluster
   - deploy
   - etcd
+  - lb
   roles:
   - prepare
 
diff --git a/roles/prepare/tasks/main.yml b/roles/prepare/tasks/main.yml
index 2b0b1b4..518fc3e 100644
--- a/roles/prepare/tasks/main.yml
+++ b/roles/prepare/tasks/main.yml
@@ -27,3 +27,11 @@
   - ca-key.pem
   - ca.csr
   - ca-config.json
+
+# 先拉取下节点的ansible setup信息，起到缓存效果，否则后续when 判断可能失败
+- name: 缓存ansilbe setup信息
+  setup: gather_subset=min
+
+- name: 关闭 selinux
+  shell: "setenforce 0 && echo SELINUX=disabled > /etc/selinux/config"
+  when: ansible_distribution == "CentOS"