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kubeadm官方文档

配置软件源

最好用centos7装,ubuntu容易出错

centos

[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=0

#docker
yum -y install yum-utils
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

ubuntu

apt-get -y install apt-transport-httpsca-certificates curl software-properties-common

#kubernetes
curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg |apt-key add -
cat<< EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
EOF


#docker源,18.04暂时没源,直接执行下面命令添加16.04的源
curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg |apt-key add -
add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
#ubuntu18.04暂时没有源,直接使用16.04的.
cat<< EOF > /etc/apt/sources.list.d/docker.list
deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu xenial stable
EOF

安装docker和kubeadm

centos

yum install kubelet kubeadm kubectl kubernetes-cni  #安装最新版
yum install kubeadm-1.10.0-0 kubectl-1.10.0-0 kubelet-1.10.0-0 kubernetes-cni #安装指定版
yum list docker-ce --showduplicates #查看源中的docker版本,k8s1.10.0支持17.03.2.ce
yum install docker-ce-17.03.2.ce
#上条命令装不上的,可以使用下面两条
rpm -i https://mirrors.aliyun.com/docker-ce/linux/centos/7/x86_64/stable/Packages/docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm

rpm -i https://mirrors.aliyun.com/docker-ce/linux/centos/7/x86_64/stable/Packages/docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm

ubuntu

apt-get update

#安装kubeadm
apt-get install kubelet kubeadm kubectl kubernetes-cni

#安装指定版本docker
apt-cache madison docker-ce #查看版本库中的版本
apt-get install docker-ce=17.03.0~ce-0~ubuntu-xenial #安装指定版本的docker-ce

使用kubeadm安装kubernetes

准备工作

提前拉取kubeadm需要的docker镜像

git clone [email protected]:quxf2012/Kubernetes.git
cd Kubernetes
bash pull_1.11.1.sh

修改kubelet cgroup驱动和docker一致,没有则跳过

docker info|grep 'Cgroup Driver'
vim /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
    --cgroup-driver=

调整系统参数

grep '^net.bridge.bridge-nf-call-iptables' /etc/sysctl.conf || echo 'net.bridge.bridge-nf-call-iptables=1' >>/etc/sysctl.conf
sysctl -p

使用kueadm安装并配置kubernetes

安装kubernetes,网段不要改

kubeadm init --kubernetes-version=v1.11.1 --pod-network-cidr=10.244.0.0/16

创建成功

配置访问k8s

root用户

export KUBECONFIG=/etc/kubernetes/admin.conf

非root用户

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

安装pod网络插件(Installing a pod network)

该插件需要kubeadm init 时指定 -pod-network-cidr=10.244.0.0/16

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

查看集群创建状态

kubectl get pods --all-namespaces 创建完成

调整master可以运行pods

kubectl taint nodes --all node-role.kubernetes.io/master-

查看日志

tail -f /var/log/syslog     #ubuntu
tail -f /var/log/messages   #centos

安装 dashboard

https://github.com/kubernetes/dashboard
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

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