|NO.Z.00029|——————————|^^ 部署 ^^|——|Kubernetes&高可用集群.V03|——|Docker&kubeadm&kubelet|

一、所有节点安装Docker/kubeadm/kubelet(Kubernetes默认CRI容器运行时为Docker因此先安装Docker

### --- 安装Docker

[root@k8s-master1 ~]#  wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
[root@k8s-master1 ~]#  wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
[root@k8s-node1 ~]#    wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo

[root@k8s-master1 ~]# yum -y install docker-ce-18.06.1.ce-3.el7
[root@k8s-master2 ~]# yum -y install docker-ce-18.06.1.ce-3.el7
[root@k8s-node1 ~]# yum -y install docker-ce-18.06.1.ce-3.el7

[root@k8s-master1 ~]# systemctl enable docker && systemctl start docker
[root@k8s-master2 ~]# systemctl enable docker && systemctl start docker
[root@k8s-node1 ~]# systemctl enable docker && systemctl start docker

[root@k8s-master1 ~]# docker --version
Docker version 18.06.1-ce, build e68fc7a
 
[root@k8s-master2 ~]# docker --version
Docker version 18.06.1-ce, build e68fc7a

[root@k8s-node1 ~]# docker --version
Docker version 18.06.1-ce, build e68fc7a

[root@k8s-master1 ~]#  cat > /etc/docker/daemon.json << EOF
> {
>   "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"]
> }
> EOF

[root@k8s-master2 ~]#  cat > /etc/docker/daemon.json << EOF
> {
>   "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"]
> }
> EOF

[root@k8s-node1 ~]#  cat > /etc/docker/daemon.json << EOF
> {
>   "registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"]
> }
> EOF

[root@k8s-master1 ~]# systemctl restart docker.service
[root@k8s-master2 ~]# systemctl restart docker.service
[root@k8s-node1 ~]# systemctl restart docker

二、添加阿里云YUM软件源

### --- 添加阿里云YUM软件源

[root@k8s-master1 ~]#  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

[root@k8s-master2 ~]#  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
[root@k8s-node1 ~]#  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

三、安装kubeadm，kubelet和kubectl（所有节点）

### --- 安装kubeadm，kubelet和kubectl（所有节点）
~~~     由于版本更新频繁，这里指定版本号部署：

[root@k8s-master1 ~]# yum install -y kubelet-1.16.3 kubeadm-1.16.3 kubectl-1.16.3
[root@k8s-master1 ~]# systemctl enable kubelet
[root@k8s-master2 ~]# yum install -y kubelet-1.16.3 kubeadm-1.16.3 kubectl-1.16.3
[root@k8s-master2 ~]# systemctl enable kubelet
[root@k8s-node1 ~]# yum install -y kubelet-1.16.3 kubeadm-1.16.3 kubectl-1.16.3^C
[root@k8s-node1 ~]# systemctl enable kubelet

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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