kubeadm安装k8s Node

#请先设置主机名

#桥接的IPv4流量传递到iptables的链
cat >/etc/sysctl.d/k8s.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

sysctl --system
#iptables转发

cat >/etc/sysctl.conf <<EOF
net.ipv4.ip_forward = 1
EOF

sysctl -p

#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-19.03.5

systemctl enable docker
systemctl start docker

mkdir -p /data/docker
mkdir -p /etc/docker
cat >/etc/docker/daemon.json <<EOF
{
"exec-opts": ["native.cgroupdriver=systemd"],
"graph": "/data/docker"
}
EOF

systemctl daemon-reload
systemctl restart docker

cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

yum install -y --nogpgcheck kubelet-1.20.6 kubeadm-1.20.6 kubectl-1.20.6

systemctl enable kubelet

echo 'please run  command in MASTER kubeadm token create --print-join-command'