k8s搭建

2019-06-27

#查看问题

1	journalctl -u kubelet

设置dns namespace

sudo vim /etc/systemd/resolved.conf

[Resolve]
DNS=192.168.0.1 114.114.114.114

#重新启动
systemd-resolved

设置主机名称

sudo echo "master" > /etc/hostname
hostnamectl set-hostname master

sudo echo "node1" > /etc/hostname
hostnamectl set-hostname node1

sudo echo "node2" > /etc/hostname
hostnamectl set-hostname node2

添加添加脚本daemon.json

sudo vim  /etc/docker/daemon.json

{

  "insecure-registries": [
    "docker-registry.my:5000"
  ]
}

添加hosts配置文件

sudo cat <<EOF >>/etc/hosts

192.168.0.2 master

192.168.0.3 node1

192.168.0.4 node2

192.168.0.5 docker-registry.my

EOF

关闭交换分区

1
2
3

sudo vim /etc/fstab

sudo swapoff -a

禁用防火墙

ufw disable

设置路由转发

sudo cat <<EOF > /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

搭建镜像仓库和deb包仓库

配置mster集群

配置阿里云源(分割线下弃用,可以用为网络下载)

sudo apt-get update && apt-get install -y apt-transport-https
sudo curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add -

sudo  vim /etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main


sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl

查看k8s所需要镜像

kubeadm config images list

k8s.gcr.io/kube-apiserver:v1.14.3
k8s.gcr.io/kube-controller-manager:v1.14.3
k8s.gcr.io/kube-scheduler:v1.14.3
k8s.gcr.io/kube-proxy:v1.14.3
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.3.10
k8s.gcr.io/coredns:1.3.1

master 初始化

1	kubeadm init --kubernetes-version=v1.14.3 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=192.168.0.2