调整部分系统参数

roles/prepare/files/95-k8s-sysctl.conf

@@ -0,0 +1,4 @@
+net.ipv4.ip_forward = 1
+net.bridge.bridge-nf-call-iptables = 1
+net.bridge.bridge-nf-call-ip6tables = 1
+net.bridge.bridge-nf-call-arptables = 1

roles/prepare/tasks/main.yml

@@ -56,3 +56,11 @@
   shell: "setenforce 0 && echo SELINUX=disabled > /etc/selinux/config"
   when: ansible_distribution == "CentOS"
   ignore_errors: true
+
+# 设置系统参数for k8s
+# 消除docker info 警告WARNING: bridge-nf-call-ip[6]tables is disabled
+- name: 设置系统参数
+  copy: src=95-k8s-sysctl.conf dest=/etc/sysctl.d/95-k8s-sysctl.conf
+
+- name: 生效系统参数
+  shell: "sysctl -p /etc/sysctl.d/95-k8s-sysctl.conf"