Kubeadm安装Kubernetes之宿主机的相关参数修改

容器云技术

Kubeadm安装Kubernetes之宿主机的相关参数修改

1. ulimit -n 参数修改永久生效

1
2
3
4
cat <<EOF >  /etc/security/limits.d/k8s.conf
* hard nofile 65536
* soft nofile 65536
EOF

参考资料：
https://www.aliyun.com/jiaocheng/208647.html
https://www.aliyun.com/jiaocheng/124954.html
https://www.cnblogs.com/xuexiaohun/articles/6233430.html
https://my.oschina.net/jxcdwangtao/blog/1621106

2. 通过sysctl修改的相关内核参数：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1

vm.swappiness = 0
net.ipv4.ip_forward = 1

net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_tw_recycle = 1 

net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_tw_resue = 1
EOF

sysctl --system