###主节点部署###
###主节点部署### #主节点IP地址：192.168.126.10 #设置主机名： hostnamectl set-hostname master #关闭防火墙、selinux和swap。 systemctl stop firewalld systemctl disable firewalld setenforce 0 sed -i "s/^SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config swapoff -a sed -i 's/.*swap.*/#&/' /etc/fstab #编辑 /etc/hosts 文件，添加域名解析。 cat <<EOF >>/etc/hosts 192.168.126.10 master 192.168.126.20 node1 EOF #使用scp远程拷贝hosts文件到node节点上 scp /etc/hosts root@node1:/etc/hosts #配置内核参数，将桥接的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 #配置国内yum源 yum install -y wget mkdir /etc/yum.repos.d/bak && mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.cloud.tencent.com/repo/epel-7.repo yum clean all && yum makecache #配置国内Kubernetes源 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 #配置 docker 源: wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo #安装docker yum install -y docker-ce-18.06.1.ce-3.el7 systemctl enable docker && systemctl start docker docker –version #安装kubeadm、kubelet、kubectl yum install -y kubelet kubeadm kubectl systemctl enable kubelet #初始化安装master节点： kubeadm init --kubernetes-version=1.15.3 --apiserver-advertise-address=192.168.126.128 --image-repository registry.aliyuncs.com/google_containers --service-cidr=10.1.0.0/16 --pod-network-cidr=10.244.0.0/16 #[需要复制记录返回结果的最后两行，类似如下：kubeadm join 192.168.7.10:6443 --token kddddu.bbbbb76hkkkcamj6 --discovery-token-ca-cert-hash sha256:4ee74205227c78ca62f2d641635afa4d50e6634acfaa8291f28582c7e3b0e30e] #配置kubectl工具 mkdir -p /root/.kube cp /etc/kubernetes/admin.conf /root/.kube/config kubectl get nodes kubectl get cs #部署flannel网络 kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/a70459be0084506e4ec919aa1c114638878db11b/Documentation/kube-flannel.yml #在master节点输入命令检查集群状态，返回如下结果则集群状态正常。 kubectl get nodes 重点查看STATUS内容为Ready时，则说明集群状态正常。 #创建Pod以验证集群是否正常。 kubectl create deployment nginx --image=nginx kubectl expose deployment nginx --port=80 --type=NodePort kubectl get pod,svc #部署Dashboard #在master节点上进行如下操作 #.1.创建Dashboard的yaml文件 wget https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml sed -i 's/k8s.gcr.io/loveone/g' kubernetes-dashboard.yaml sed -i "160a \ \ \ \ \ \ nodePort: 30001" kubernetes-dashboard.yaml sed -i "161a \ \ type:\ NodePort" kubernetes-dashboard.yaml #.2.部署Dashboard kubectl create -f kubernetes-dashboard.yaml #.3.创建完成后，检查相关服务运行状态 kubectl get deployment kubernetes-dashboard -n kube-system kubectl get pods -n kube-system -o wide kubectl get services -n kube-system netstat -ntlp|grep 30001 #.4.在Firefox浏览器输入Dashboard访问地址：https://192.168.126.10:30001 #.5.查看访问Dashboard的认证令牌 kubectl describe secrets -n kube-system $(kubectl -n kube-system get secret | awk ‘/dashboard-admin/{print $1}’) #.6.使用输出的token登录Dashboard
###Node节点部署###
###Node节点部署### #Node节点IP：192.168.126.20 #设置主机名： hostnamectl set-hostname node1 #关闭防火墙、selinux和swap。 systemctl stop firewalld systemctl disable firewalld setenforce 0 sed -i "s/^SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config swapoff -a sed -i 's/.*swap.*/#&/' /etc/fstab #配置内核参数，将桥接的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 #配置国内yum源 yum install -y wget mkdir /etc/yum.repos.d/bak && mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.cloud.tencent.com/repo/epel-7.repo yum clean all && yum makecache #配置国内Kubernetes源 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 #配置 docker 源: wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo #安装docker yum install -y docker-ce-18.06.1.ce-3.el7 systemctl enable docker && systemctl start docker docker –version #安装kubeadm、kubelet、kubectl yum install -y kubelet kubeadm kubectl systemctl enable kubelet #执行如下命令，使所有node节点加入Kubernetes集群 kubeadm join 10.10.10.10:6443 --token kekvgu.nw1n76h84f4camj6 --discovery-token-ca-cert-hash sha256:4ee74205227c78ca62f2d641635afa4d50e6634acfaa8291f28582c7e3b0e30e #此命令为集群初始化时（kubeadm init）返回结果中的内容。