k8s学习笔记

			# 系统初始化

1. 关闭防火墙

systemctl stop Firewalld
systemctl disable Firewalld

2. 关闭selinux

 sed -i 's/enforcing/disabled/' /etc/selinux/config #永久
 setenforce 0 #临时

3. 关闭swap

swapoff -a #临时
sed -ri 's/.*swap.*/#&/' /etc/fstab 	#永久

4. 根据规划设置主机名

hostnamectl set-hostname <hostname>

5. 在master添加hosts

cat >> /etc/hosts <<EOF
192.168.25.141 master
192.168.25.142 node1
EOF

6. 将桥接的IPv4流量传递到iptables的连

cat > /etc/sysctl.d/k8s.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system #生效

7. 关闭防火墙

yum install ntpdate -y
ntpdate time.windows.com

8. 安装Docker

wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
yum -y install docker-ce-18.06.1.ce-3.el7
systemctl enable docker && systemctl start docker
docker version

cat > /etc/docker/daemon.json << EOF
{
  "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

使用kubeamd方式搭建k8s集群