kubeadm安装kubernetes-v1.13.1

centos虚拟机使用kubeadm安装k8s-v1.13.1。

机器信息如下：

环境准备

设置主机名

192.168.239.200 master192.168.239.201 node1192.168.239.202 node2

关闭swap

swapoff -ased -i ‘s/.*swap.*/#&/‘ /etc/fstab

关闭防火墙

systemctl stop firewalldsystemctl disable firewalld

关闭selinux

setenforce 0

配置相关参数

net.ipv4.ip_forward=1net.bridge.bridge-nf-call-iptables=1net.bridge.bridge-nf-call-ip6tables=1vm.swappiness=0sysctl -p

docker安装

安装docker的yum源

yum-config-manager --add-repo ?https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

查看docker版本

yum list docker-ce.x86_64 ?--showduplicates |sort -rdocker-ce.x86_64 ???????????3:18.09.0-3.el7 ???????????????????docker-ce-stable docker-ce.x86_64 ???????????18.06.1.ce-3.el7 ??????????????????docker-ce-stable docker-ce.x86_64 ???????????18.06.1.ce-3.el7 ??????????????????@docker-ce-stabledocker-ce.x86_64 ???????????18.06.0.ce-3.el7 ??????????????????docker-ce-stable docker-ce.x86_64 ???????????18.03.1.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????18.03.0.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????17.12.1.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????17.12.0.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????17.09.1.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????17.09.0.ce-1.el7.centos ???????????docker-ce-stable docker-ce.x86_64 ???????????17.06.2.ce-1.el7.centos ???????????docker-ce-stable 

安装docker

yum install -y --setopt=obsoletes=0 docker-ce-18.06.1.ce-3.el7systemctl start dockersystemctl enable docker

安装kubeadm等

配置阿里云源

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

node结点不用安装kubectl

yum install -y kubelet kubeadm kubectlsystemctl enable kubeletsystemctl start kubelet

安装master结点

国内无法访问google的镜像源，需要自己生成放到docker hub。

如何自己生成镜像放到docker hub请看Docker Hub上自动制做Docker镜像

下载自己生成的镜像源

vim pull-kube-image.sh#!/bin/bashimages=(kube-scheduler:v1.13.1 ???????kube-proxy:v1.13.1 ???????kube-controller-manager:v1.13.1 ???????kube-apiserver:v1.13.1 ???????pause:3.1 ???????coredns:1.2.6 ???????etcd:3.2.24)for imagename in ${images[@]}; dodocker pull mathlsj/$imagenamedocker tag mathlsj/$imagename k8s.gcr.io/$imagenamedocker rmi mathlsj/$imagenamedonedocker pull quay.io/coreos/flannel:v0.10.0-amd64

查看镜像源

docker images REPOSITORY ?????????????????????????????TAG ????????????????IMAGE ID ???????????CREATED ????????????SIZEk8s.gcr.io/kube-scheduler ??????????????v1.13.1 ????????????9bf9c8fb24af ???????7 days ago ?????????79.6MBk8s.gcr.io/kube-proxy ??????????????????v1.13.1 ????????????6fbfd87ede1f ???????7 days ago ?????????80.2MBk8s.gcr.io/kube-controller-manager ?????v1.13.1 ????????????f5e8b3a9a6bf ???????7 days ago ?????????146MBk8s.gcr.io/kube-apiserver ??????????????v1.13.1 ????????????14219a09a24c ???????7 days ago ?????????181MBk8s.gcr.io/pause ???????????????????????3.1 ????????????????68112c580347 ???????8 days ago ?????????742kBk8s.gcr.io/coredns ?????????????????????1.2.6 ??????????????75ca836e805a ???????8 days ago ?????????40MBk8s.gcr.io/etcd ????????????????????????3.2.24 ?????????????c10486f7ea38 ???????9 days ago ?????????220MBk8s.gcr.io/kubernetes-dashboard-amd64 ??v1.8.3 ?????????????0c60bcf89900 ???????11 months ago ??????102MBquay.io/coreos/flannel ?????????????????v0.10.0-amd64 ??????f0fad859c909 ???????11 months ago ??????44.6MB

节点初始化

kubeadm init --kubernetes-version=v1.13.1 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=192.168.239.200

看到Your Kubernetes master has initialized successfully!就表示初始化成功了。

要使用kubectl需要以下命令

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

查看初始化情况

kubectl get nodesNAME ????STATUS ??ROLES ???AGE ????VERSIONmaster ??Ready ???master ??3d1h ???v1.13.2kubectl get pod --all-namespacesNAMESPACE ????NAME ????????????????????????????READY ??STATUS ???RESTARTS ??AGEkube-system ??coredns-86c58d9df4-2nhd5 ????????0/1 ????Pending ??0 ?????????35mkube-system ??coredns-86c58d9df4-l2wt9 ????????0/1 ????Pending ??0 ?????????35mkube-system ??etcd-master ?????????????????????1/1 ????Running ??0 ?????????34mkube-system ??kube-apiserver-master ???????????1/1 ????Running ??0 ?????????34mkube-system ??kube-controller-manager-master ??1/1 ????Running ??0 ?????????34mkube-system ??kube-proxy-fqjvp ????????????????1/1 ????Running ??0 ?????????35mkube-system ??kube-scheduler-master ???????????1/1 ????Running ??0 ?????????34m

安装flannel网络

wget https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.ymlkubectl apply -f kube-flannel.yml

安装node结点

在安装前，先完成前面的环境准备，docker安装和安装kubeadm等。

下载镜像源

vim pull-kube-image.sh#!/bin/bashimages=(kube-proxy:v1.13.1 ???????pause:3.1 ???????coredns:1.2.6)for imagename in ${images[@]}; dodocker pull mathlsj/$imagenamedocker tag mathlsj/$imagename k8s.gcr.io/$imagenamedocker rmi mathlsj/$imagenamedonedocker pull quay.io/coreos/flannel:v0.10.0-amd64

查看镜像

docker imagesREPOSITORY ?????????????????????????????TAG ????????????????IMAGE ID ???????????CREATED ????????????SIZEk8s.gcr.io/kube-proxy ??????????????????v1.13.1 ????????????6fbfd87ede1f ???????7 days ago ?????????80.2MBk8s.gcr.io/pause ???????????????????????3.1 ????????????????68112c580347 ???????8 days ago ?????????742kBk8s.gcr.io/coredns ?????????????????????1.2.6 ??????????????75ca836e805a ???????8 days ago ?????????40MBquay.io/coreos/flannel ?????????????????v0.10.0-amd64 ??????f0fad859c909 ???????11 months ago ??????44.6MB

查看token,在master结点上看

kubeadm token listTOKEN ????????????????????TTL ??????EXPIRES ????????????????????USAGES ??????????????????DESCRIPTION ???????????????????????????????????????????????EXTRA GROUPSkm7adp.vu3fugeopqgyj8rk ??23h ??????2019-01-15T09:22:48-05:00 ??authentication,signing ??The default bootstrap token generated by ‘kubeadm init‘. ??system:bootstrappers:kubeadm:default-node-token

加入节点

kubeadm join --discovery-token km7adp.vu3fugeopqgyj8rk --discovery-token-ca-cert-hash sha256:4e05312726ad565688309951d6c8afb2965e1ce80f736d0123b4363581fcb106 192.168.239.200:6443

在master上查看状态

kubectl get nodesNAME ????STATUS ??ROLES ???AGE ??VERSIONmaster ??Ready ???master ??92m ??v1.13.2node1 ???Ready ???<none> ??41m ??v1.13.2kubectl get pods --all-namespaces -o wideNAMESPACE ????NAME ????????????????????????????READY ??STATUS ???RESTARTS ??AGE ??IP ???????????????NODE ????NOMINATED NODE ??READINESS GATESkube-system ??coredns-86c58d9df4-2nhd5 ????????1/1 ????Running ??0 ?????????84m ??10.244.1.2 ???????node1 ???<none> ??????????<none>kube-system ??coredns-86c58d9df4-l2wt9 ????????1/1 ????Running ??0 ?????????84m ??10.244.1.3 ???????node1 ???<none> ??????????<none>kube-system ??etcd-master ?????????????????????1/1 ????Running ??0 ?????????83m ??192.168.239.200 ??master ??<none> ??????????<none>kube-system ??kube-apiserver-master ???????????1/1 ????Running ??0 ?????????83m ??192.168.239.200 ??master ??<none> ??????????<none>kube-system ??kube-controller-manager-master ??1/1 ????Running ??0 ?????????83m ??192.168.239.200 ??master ??<none> ??????????<none>kube-system ??kube-flannel-ds-amd64-786l8 ?????1/1 ????Running ??0 ?????????16m ??192.168.239.200 ??master ??<none> ??????????<none>kube-system ??kube-flannel-ds-amd64-pc4fp ?????1/1 ????Running ??0 ?????????16m ??192.168.239.201 ??node1 ???<none> ??????????<none>kube-system ??kube-proxy-fqjvp ????????????????1/1 ????Running ??0 ?????????84m ??192.168.239.200 ??master ??<none> ??????????<none>kube-system ??kube-proxy-skndl ????????????????1/1 ????Running ??0 ?????????33m ??192.168.239.201 ??node1 ???<none> ??????????<none>kube-system ??kube-scheduler-master ???????????1/1 ????Running ??0 ?????????83m ??192.168.239.200 ??master ??<none> ??????????<none>

参考文档

• http://blog.51cto.com/lullaby/2150610?utm_source=oschina-app
• https://my.oschina.net/u/2601623/blog/1634641
• https://kubernetes.io/docs/setup/independent/install-kubeadm/

kubeadm安装kubernetes-v1.13.1

原文地址：https://www.cnblogs.com/mathli/p/10289840.html