k8s加入节点到集群

1.安装docker-ce-19.03.13

yum install -y yum-utils device-mapper-persistent-data lvm2

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum install -y docker-ce-19.03.13 docker-ce-cli-19.03.13 containerd.io

mkdir -p /etc/docker
touch /etc/docker/daemon.json

vi /etc/docker/daemon.json

# 设置镜像加速和设置容器存储为外挂磁盘节约空间

{
"graph":"/data/docker",
"registry-mirrors": ["https://sbvfj41r.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"]
}

# 开启服务
systemctl enable docker
systemctl restart docker

 

2.添加节点

#添加节点到hosts

echo "10.10.aa.bb bb.vpclub.io" >> /etc/hosts
echo "10.10.aa.cc cc.vpclub.io" >> /etc/hosts

#设置hostname

hostnamectl set-hostname aa.vpclub.io

#查看hostname

hostname

#复制文件到节点服务器

/usr/bin/kubeadm
/usr/bin/kubectl
/usr/bin/kubelet

/usr/lib/systemd/system/kubelet.service
/usr/lib/systemd/system/kubelet.service.d(这是一个目录，手动创建)
/usr/lib/systemd/system/kubelet.service.d/10-kubeadm.conf

#查看状态

systemctl status kubelet

#主节点服务器执行，会打印出添加节点命令

kubeadm token create --print-join-command

#子节点服务器执行添加子节点命令，请注意把10.10.aa.bb:6443替换成主节点

kubeadm join 10.10.aa.bb:6443 --token 4a836s.fos36q3l34p5epyg     --discovery-token-ca-cert-hash sha256:b52956894bdb8262ff265eb941898a619ae4bdf4aa2b704277a9ea11a411616b

 

问题1：[ERROR Swap]: running with swap on is not supported. Please disable swap
解决办法：swapoff -a

问题2：[ERROR FileExisting-conntrack]: conntrack not found in system path
解决办法：yum install -y conntrack