kubernetes K8S，就是基于容器的集群管理平台
# 创建一个 Master 节点
$ kubeadm init
# 将一个 Node 节点加入到当前集群中
$ kubeadm join <Master节点的IP和端口 >
· 一台或多台机器，操作系统 CentOS7.x-86_x64
· 硬件配置：2GB或更多RAM，2个CPU或更多CPU，硬盘30GB或更多
· 集群中所有机器之间网络互通
· 可以访问外网，需要拉取镜像
· 禁止swap分区
1.在所有节点上安装Docker和kubeadm 2.部署Kubernetes Master 3.部署容器网络插件 4.部署 Kubernetes Node，将节点加入Kubernetes集群中 5.部署Dashboard Web页面，可视化查看Kubernetes资源
关闭防火墙： $ systemctl stop firewalld $ systemctl disable firewalld 关闭selinux： $ sed -i ‘s/enforcing/disabled/‘ /etc/selinux/config $ setenforce 0 关闭swap： $ swapoff -a $ 临时 $ vim /etc/fstab $ 永久 添加主机名与IP对应关系（记得设置主机名）： $ cat /etc/hosts 192.168.23.35 k8s-master 192.168.23.36 k8s-node1 192.168.23.37 k8s-node2 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
4.所有节点安置Docker/kubeadm/kubelet
5. 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 Docker version 18.06.1-ce, build e68fc7a
6、添加阿里云YUM软体源
$ 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 kubelet-1.15.0 kubeadm-1.15.0 kubectl-1.15.0
$ systemctl enable kubelet
8.部门Kubernetes Master
$ kubeadm init --apiserver-advertise-address=192.168.31.61 --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.15.0 --service-cidr=10.1.0.0/16 --pod-network-cidr=10.244.0.0/16
mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config $ kubectl get nodes
$ kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/a70459be0084506e4ec919aa1c11463 8878db11b/Documentation/kube-flannel.yml
$ kubeadm join 192.168.23.35:6443 --token esce21.q6hetwm8si29qxwn --discovery-token-ca-cert-hash sha256:00603a05805807501d7181c3d60b478788408cfe6cedefedb1f97569708be9c5
$ kubectl create deployment nginx --image=nginx $ kubectl expose deployment nginx --port=80 --type=NodePort $ kubectl get pod,svc
访问地址：http://NodeIP:Port
$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recomm ended/kubernetes-dashboard.yaml
kind: Service apiVersion: v1 metadata: labels: k8s-app: kubernetes-dashboard name: kubernetes-dashboard namespace: kube-system spec: type: NodePort ports: - port: 443 targetPort: 8443 nodePort: 30001 selector: k8s-app: kubernetes-dashboard $ kubectl apply -f kubernetes-dashboard.yaml
$ kubectl create serviceaccount dashboard-admin -n kube-system $ kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin $ kubectl describe secrets -n kube-system $(kubectl -n kube-system get secret | awk ‘/dashboard-admin/{print $1}‘)
艾编程arry老师课堂笔记：kubernetes K8S基于Docker安装部署
原文：https://www.cnblogs.com/icodingedu/p/12662818.html