第一個問題:執行: systemctl start kube-apiserver 命令時候報:
kube-apiserver.service: main process exited, code=exited, status=255/n/a 問題:
此處端口衝突了,默認8080和自己本地一個服務衝突,然後將kube-apiserver端口修改了:
配置文件: /etc/kubernetes/apiserver 參數 KUBE_API_PORT 然後啓動之後沒什麼問題
第二個問題: 再所有服務啓動完成之後執行命令 kubectl version,然後出現了:客戶端正常:
服務端出現了: Error from server (BadRequest): the server rejected our request for an unknow,
服務端拒絕了連接。說明了,kube-apiserver 啓動沒有成功,有問題。
解決: 因爲k8s默認使用的是8080,需要修改很多配置默認端口,自己是將自己的本地測試服務的
端口8080修改了,將k8s的 kube-apiserver 服務的端口又改爲了8080(此處參照上一個問題修改端
口),然後重啓kube-apiserver 服務,重啓完成後輸入 kubectl version 出現了第三個問題:
第三個問題:The connection to the server localhost:8080 was refused - did you specify the right
host or port?
Client Version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.2", GitCommit:"269f928217957e7126dc87e6adfa82242bfe5b1e", GitTreeState:"clean", BuildDate:"2017-07-03T15:31:10Z", GoVersion:"go1.7.4", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
這個問題是因爲沒有按照啓動順序重啓:坑爹
systemctl restart etcd
systemctl restart docker
systemctl restart kube-apiserver
systemctl restart kube-controller-manager
systemctl restart kube-scheduler
systemctl restart kubelet
systemctl restart kube-proxy
依次重啓之後安裝完成:輸入kubectl version
Client Version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.2", GitCommit:"269f928217957e7126dc87e6adfa82242bfe5b1e", GitTreeState:"clean", BuildDate:"2017-07-03T15:31:10Z", GoVersion:"go1.7.4", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.2", GitCommit:"269f928217957e7126dc87e6adfa82242bfe5b1e", GitTreeState:"clean", BuildDate:"2017-07-03T15:31:10Z", GoVersion:"go1.7.4", Compiler:"gc", Platform:"linux/amd64"}
大功告成