kubeadm 部署kubernetes1.11.1，dashboard1.10.0

---恢复内容开始---

实验环境准备2台虚拟机：

　　master节点：172.17.1.36

　　node节点：172.17.1.40

首先安装master节点：

master 的虚拟机是全新的机器，在安装kubernetes之前的做下准备工作

关闭防火墙

systemctl stop firewalld

systemctl disable firewalld

hostname master   ,并且修改/etc/hostname

关闭selinux

setenforce 0  永久关闭修改配置文件/etc/selinux/config       修改成SELINUX=disabled

准备docker  和kubernetes的repo文件

cd /etc/yum.repos.d/

vi  docker-ce.repo

[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/stable
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-stable-debuginfo]
name=Docker CE Stable - Debuginfo $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/stable
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-stable-source]
name=Docker CE Stable - Sources
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/stable
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-edge]
name=Docker CE Edge - $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/edge
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-edge-debuginfo]
name=Docker CE Edge - Debuginfo $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/edge
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-edge-source]
name=Docker CE Edge - Sources
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/edge
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-test]
name=Docker CE Test - $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/test
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-test-debuginfo]
name=Docker CE Test - Debuginfo $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/test
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-test-source]
name=Docker CE Test - Sources
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/test
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-nightly]
name=Docker CE Nightly - $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/nightly
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-nightly-debuginfo]
name=Docker CE Nightly - Debuginfo $basearch
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/nightly
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

[docker-ce-nightly-source]
name=Docker CE Nightly - Sources
baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/nightly
enabled=
gpgcheck=
gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

vi  kubernetes.repo

[kubernetes]
name=Kubernetes Repo
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
gpgcheck=1   #不想验证这里改成0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
enableld=

rpm --import rpm-package-key.gpg   导入下gpgkey

yum install docker-ce kubeadm-1.11.1 kubectl-1.11.1 kubelet-1.11.1   我安装是的1.11.1的版本

启动docker，并设置开机启动

systemctl start docker

systemctl enable docker

确保桥接的状态是打开的，返回是1说明是正常的

systemctl enable kubelet  开机启动kubelet   ，不要启动，因为配置没有初始化完成

vim /etc/sysconfig/kubelet 忽略swap on 开启集群不能初始化得错误
KUBELET_EXTRA_ARGS="--fail-swap-on=false"

kubeadm init --kubernetes-version=v1.11.1 --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --ignore-preflight-errors=Swap  初始化集群

注意：初始化的时候需要以下的docker 镜像，由于某些不可描述的原因，下载不了，我这里是准备好的镜像文件导入的

[k8s.gcr.io/kube-apiserver-amd64:v1.11.1]
[k8s.gcr.io/kube-controller-manager-amd64:v1.11.1]
[k8s.gcr.io/kube-scheduler-amd64:v1.11.1]
[k8s.gcr.io/kube-proxy-amd64:v1.11.1]
[k8s.gcr.io/pause:3.1
[k8s.gcr.io/etcd-amd64:3.2.18]
[k8s.gcr.io/coredns:1.1.3]

出现这个界面是说明初始化完成！

kubeadm join 172.17.1.36:6443 --token 0kyf48.b4aevmeo1wdylowk --discovery-token-ca-cert-hash sha256:587072eb329d8af7bb52241ab52f6b27d8496dfc99ac1371686b05dcadc3e029   这个是node节点加入集群的命令，最好保存下

根据提示做这2不操作

[root@master yum.repos.d]# mkdir -p $HOME/.kube
[root@master yum.repos.d]# cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

最后安装flannel 网络插件

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

这里下载flannel的镜像   quay.io/coreos/flannel:v0.10.0-amd64

验证下集群的状态

这样集群的master节点安装完成！

安装node节点

和master节点一样，需要docker-ce.repo，kubernetes.repo，还有关闭防火墙，关闭selinux，操作和master一样

yum install docker-ce kubeadm-1.11.1 kubelet-1.11.1

vim /etc/sysconfig/kubelet 忽略swap on 开启集群不能初始化得错误
KUBELET_EXTRA_ARGS="--fail-swap-on=false"

加入集群：

kubeadm join 172.17.1.36:6443 --token 0kyf48.b4aevmeo1wdylowk --discovery-token-ca-cert-hash sha256:587072eb329d8af7bb52241ab52f6b27d8496dfc99ac1371686b05dcadc3e029 --ignore-preflight-errors=Swap

node 上要有以下镜像：

[k8s.gcr.io/kube-proxy-amd64:v1.11.1]
[k8s.gcr.io/pause:3.1

quay.io/coreos/flannel:v0.10.0-amd64

在master节点下查看下状态

完工，kubernetes 部署完成！

部署dashboard

提前把k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.0 导入到node节点，当让有梯子的人就不用了

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml  应用dashboard的部署文件

已经部署好了，

创建serviceaccount 用于登陆dashboard

kubectl create serviceaccount dashboard-admin -n kube-system

创建clusterrolebinding

kubectl create clusterrolebinding cluster-dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin

查找刚刚生成的secret

这里我登陆dashboard用的是secret的token

把刚刚dashboard船舰的service 的类型改成NodePort  ，可以在部署dashboard的时候修改下yaml文件

kubectl patch svc kubernetes-dashboard -p '{"spec":{"type":"NodePort"}}' -n kube-system

登陆dashboard

选择令牌

输入刚刚secret的token

dashboard部署完成！