k8s master node安装

链接

 

问题集

 

master查看端口：

netstat -antp|grep LISTEN|egrep -v 'sshd|master'

 

master：

修改主机名
hostnamectl set-hostname k8s-master # 使用这个命令会立即生效且重启也生效
[root@centos7 ~]$ vim /etc/hosts # 编辑下hosts文件， 给127.0.0.1添加hostname
[root@centos7 ~]$ cat /etc/hosts # 检查
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 centos77.magedu.com
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

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

# master
yum install -y kubectl kubeadm kubelet

 

systemctl enable kubelet && systemctl start kubelet

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

sudo systemctl daemon-reload
sudo systemctl restart docker
sudo systemctl restart kubelet

kubeadm init --kubernetes-version=1.23.1 \
--apiserver-advertise-address=192.168.18.130 \
--image-repository=registry.aliyuncs.com/google_containers \
--service-cidr=10.96.0.0/12 \
--pod-network-cidr=10.244.0.0/16 \
--ignore-preflight-errors=Swap

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

 

node：

修改主机名
hostnamectl set-hostname k8s-node1 # 使用这个命令会立即生效且重启也生效
[root@centos7 ~]$ vim /etc/hosts # 编辑下hosts文件， 给127.0.0.1添加hostname
[root@centos7 ~]$ cat /etc/hosts # 检查
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 k8s-node1
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

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

 

# node
yum install -y kubeadm kubelet

 

systemctl enable kubelet && systemctl start kubelet

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

sudo systemctl daemon-reload
sudo systemctl restart docker
sudo systemctl restart kubelet

 

使用master的命令加入master