K8s

kubeadm部署集群

k8s001

k8s002

k8s003

1.修改hosts

echo "192.168.201.135 k8s01">>/etc/hosts

echo "192.168.201.136 k8s02">>/etc/hosts

echo "192.168.201.137 k8s03">>/etc/hosts

 

2关闭防火墙

查看防火墙状态

firewall-cmd --state

• 1

停止firewall

systemctl stop firewalld.service

• 1

禁止firewall开机启动

systemctl disable firewalld.service 

不能清除规则（-F）cdh中需要清除

iptables -L （）

3 禁用selinux

setenforce 0

cat /etc/selinux/config

selinux =disabled

 

4 Swapoff  -a 

5解决路由异常

echo "

net.bridge.bridge-nf-call-ip6tables = 1

" >> /etc/sysctl.d/k8s.conf

echo "

net.bridge.bridge-nf-call-iptables = 1

" >> /etc/sysctl.d/k8s.conf

echo "vm.swappiness=0"

>> /etc/sysctl.d/k8s.conf

modprobe br_netfilter

sysctl -p /etc/sysctl.d/k8s.conf

 

6安装docker Docker

yum  install -y docker

systemctl enbale docker && systemctl start docker

 

7安装kubelet(底层)  kubeadm（管理） kubectl（工作内容）

 

cat <<EOF > /etc/yum.repos.d/kubernetes.repo

[kubernetes]

name=Kubernetes

baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64

enabled=1

gpgcheck=0

repo_gpgcheck=0

gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg

       http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

EOF

1.14.1坑 

 要求0.6.0 阿里云是0.6.0-0 强行指定

yum install -y kubelet-1.13.2 kubeadm-1.13.2 kubectl-1.13.2 kubernetes-cni-0.6.0-0

systemctl enable kubelet（开机自启动）

yum remove -y kubelet kubeadm kubectl

8image 手动执行

images=(kube-apiserver:v1.13.2 kube-controller-manager:v1.13.2 kube-scheduler:v1.13.2 kube-proxy:v1.13.2 pause:3.1 etcd:3.2.24 coredns:1.2.6)

for imageName in ${images[@]} ; do

docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/${imageName}

docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/${imageName} k8s.gcr.io/${imageName}

done

for imageName in ${images[@]} ; do

docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/${imageName}

docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/${imageName} k8s.gcr.io/${imageName}

done

 

初始化

kubeadm init --kubernetes-version=v1.13.2 --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --ignore-preflight-errors=Swap

 

kubeadmn reset 

 

9

设置普通账户权限：

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

root 用户，则可以运行:

export KUBECONFIG=/etc/kubernetes/admin.conf

https://my.oschina.net/Kanonpy/blog/3006129

自己做了一层网路

  

 10 用kubeadm部署node，把其加入master

用上面kubeadm init 安装完成后给的命令即可：

kubeadm join 192.168.1.120:6443 --token xmjnn0.39xbep2zpyh0rjam --discovery-token-ca-cert-hash sha256:9c2dc63bab2a1392e

 

11 kubeadm get nodes

 

12安装dashboard(额外安装)

 https://blog.csdn.net/bbwangj/article/details/82024485