fedora 安装单节点环境
dnf download kubernetes-master –destdir ./k8s
设定时间区
timedatectl set-timezone Asia/Shanghai
- 安装
dnf install kubernetes docker
会安装以下软件包
conntrack-tools
container-selinux
docker
docker-common
iptables
kubernetes
kubernetes-client
kubernetes-master
kubernetes-node
libnetfilter_conntrack
libnetfilter_cthelper
libnetfilter_cttimeout
libnetfilter_queue
libnfnetlink
socat
安装etcd
dnf -y install etcd自定义dns
echo “172.16.6.58 fed-master
172.16.199.224 fed-node” >> /etc/hosts编辑/etc/kubernetes/config 指定master是哪个（每台主机都要修改）
sed -i ‘/KUBE_MASTER/s/127.0.0.1:8080/fed-master:8080/g’ /etc/kubernetes/config
grep KUBE_MASTER /etc/kubernetes/config
- 关闭防火墙
systemctl disable iptables-services firewalld
systemctl stop iptables-services firewalld
- 在master主机上编辑
(1) /etc/kubernetes/apiserver
sed -i ‘/KUBE_API_ADDRESS/s/127.0.0.1/0.0.0.0/g’ /etc/kubernetes/apiserver
grep KUBE_API_ADDRESS /etc/kubernetes/apiserver
(2) /etc/etcd/etcd.conf 设置etd侦听所有网络，如果你不设置 你可能会收到“connection refused”这样的错误
sed -i ‘/ETCD_LISTEN_CLIENT_URLS/s/localhost:2379/0.0.0.0:2379/g’ /etc/etcd/etcd.conf
grep -v ‘#’ /etc/etcd/etcd.conf
在master上启动 如下服务
for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES
done如下命令 添加节点：
{
“apiVersion”: “v1”,
“kind”: “Node”,
“metadata”: {
“name”: “fed-node”,
“labels”:{ “name”: “fed-node-label”}
},
“spec”: {
“externalID”: “fed-node”
}
}
$ kubectl create -f ./node.json
$ kubectl get nodes
NAME STATUS AGE
fed-node Unknown 4h
编辑/etc/kubernetes/config
sed -i ‘/KUBELET_ADDRESS/s/–address=127.0.0.1/–address=0.0.0.0/g’ /etc/kubernetes/kubelet
sed -i ‘/KUBELET_HOSTNAME/s/127.0.0.1/fed-node/g’ /etc/kubernetes/kubelet
sed -i ‘/KUBELET_API_SERVER/s/127.0.0.1:8080/fed-master:8080/g’ /etc/kubernetes/kubelet
在node节点上启动服务
for SERVICES in kube-proxy kubelet docker; do
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES
done
配置正常的话在minion主机可以看到：
[root@monkey2 ~]# kubectl version
Client Version: version.Info{Major:”1”, Minor:”5”, GitVersion:”v1.5.3”, GitCommit:”029c3a408176b55c30846f0faedf56aae5992e9b”, GitTreeState:”clean”, BuildDate:”2017-03-09T11:55:06Z”, GoVersion:”go1.7.5”, Compiler:”gc”, Platform:”linux/amd64”}
Server Version: version.Info{Major:”1”, Minor:”5”, GitVersion:”v1.5.3”, GitCommit:”029c3a408176b55c30846f0faedf56aae5992e9b”, GitTreeState:”clean”, BuildDate:”2017-03-09T11:55:06Z”, GoVersion:”go1.7.5”, Compiler:”gc”, Platform:”linux/amd64”}
报错处理：
[root@monkey2 kubernetes]# kubectl version
Client Version: version.Info{Major:”1”, Minor:”5”, GitVersion:”v1.5.3”, GitCommit:”029c3a408176b55c30846f0faedf56aae5992e9b”, GitTreeState:”clean”, BuildDate:”2017-03-09T11:55:06Z”, GoVersion:”go1.7.5”, Compiler:”gc”, Platform:”linux/amd64”}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
可以指定api-server的ip
kubectl -s http://apiserverIP:8080 version
alias kubectl=” kubectl -s http://fed-master:8080“
dashboard安装
镜像地址：
https://hub.docker.com/u/googlecontainer/
#下载dashboard 配置
curl -o kubernetes-dashboard.yaml https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/kubernetes-dashboard-no-rbac.yaml
kubectl create -f kubernetes-dashboard.yaml
kubectl get -f kubernetes-dashboard.yaml
1.6.1 镜像下载地址：
vi kubernetes-dashboard.yaml
配置使用本地镜像源和apiserver地址
- –apiserver-host=http://fed-master:8080
查看k8s的命令
kubectl get deployment kubernetes-dashboard –namespace=kube-system
kubectl get svc kubernetes-dashboard –namespace=kube-system
排错：
kubectl get events –namespace=kube-system
可以查看到 有哪些容器
kubectl –namespace=kube-system logs kubernetes-dashboard-911386560
kubectl get pod –all-namespaces -o wide
kubectl get service –all-namespaces
[root@monkey1 conf]# kubectl get pod –namespace=kube-system
NAME READY STATUS RESTARTS AGE
kubernetes-dashboard-2692392454-ps3ks 0/1 ContainerCreating 0 5m
kubectl describe pod kubernetes-dashboard-2692392454-ps3ks –namespace=kube-system
docker load < /tmp/kubernetes-dashboard-amd64_v1.6.1.tar.gz
docker load < pause-amd64_3.0.tar