使用kubekit搭建k8s集羣

概述

其實有時候安裝搭建這個東西是費時費力的事情，若是有腳本爲何不能使用腳本呢？花100分鐘在搭建上還不如用100分鐘去研究怎麼使用

什麼是kubekit

Kubekit是一個部署工具包，它爲kubernetes提供離線安裝解決方案。您能夠使用它將Kubernetes部署到OFFLINE生產環境。

Kubekit將安裝

• Docker（1.12.6）
• Kubernetes及其全部組件
• Kubernetes儀表板，默認節點端口：31234

kubkit地址

https://github.com/Orientsoft/kubekit

操做系統

首先官方支持下面兩個操做系統，並且都要是最小化安裝支持的

• CentOS release 7.3.1611
• CentOS release 7.4.1708

我使用是1708，k8s版本是V1.9.2，具體的能夠看github上的readme

wget http://111.1.50.85/files/1128000004BF9EC9/linux.cc.lehigh.edu/centos/7/isos/x86_64/CentOS-7-x86_64-Minimal-1708.iso

在虛擬機裏面正常安裝，注意是最小化安裝，我給虛擬機的內存是2g，但願有一天我也能夠買臺mac book pro吧 安裝完成以後關閉防火牆

systemctl stop firewalld

systemctl disable firewalld

關閉selinux

setenforce 0

vim /etc/selinux/config

修改成

SELINUX=disabled

最好還能夠同步一下時間什麼的

yum install ntpdate

ntpdate 0.cn.pool.ntp.org

下載kubekit

yum install wget

wget https://kubekit.orientsoft.cn/kubekit-linux64-0.3.tar.gz

解壓

tar -zxvf kubekit-linux64-0.3.tar.gz

mv kubekit-release/ kubekit

下載離線包而且安裝集羣

wget https://kubekit.orientsoft.cn/package-1.9.2.tar.gz

tar -zxvf package-1.9.2.tar.gz

mv package kubekit

給腳本賦予可執行權限

cd kubekit/package/

chmod +x ./*.sh

最後安裝並初始化master節點

./kubekit init 192.168.38.166

到下面這步就說明節點初始化成功了

[root@kubekit kubekit]# ./kubekit init 192.168.38.166

 ___  __        ___  ___      ________      _______       ___  __        ___      _________   
|\  \|\  \     |\  \|\  \    |\   __  \    |\  ___ \     |\  \|\  \     |\  \    |\___   ___\ 
\ \  \/  /|_   \ \  \\\  \   \ \  \|\ /_   \ \   __/|    \ \  \/  /|_   \ \  \   \|___ \  \_| 
 \ \   ___  \   \ \  \\\  \   \ \   __  \   \ \  \_|/__   \ \   ___  \   \ \  \       \ \  \  
  \ \  \\ \  \   \ \  \\\  \   \ \  \|\  \   \ \  \_|\ \   \ \  \\ \  \   \ \  \       \ \  \ 
   \ \__\\ \__\   \ \_______\   \ \_______\   \ \_______\   \ \__\\ \__\   \ \__\       \ \__\
    \|__| \|__|    \|_______|    \|_______|    \|_______|    \|__| \|__|    \|__|        \|__|


KubeKit V0.3 ⓒ  OrientSoft 2018

Initialization process started, with kubernetes master IP: 192.168.38.166

✔ HTTP file server listening at: 0.0.0.0:8000

Start to install docker engine...
(1/2) Start to install docker...
(2/2) Start to config docker...

✔ Docker engine installed...

Start to initialize Kubernetes master node...

(1/6) Start to load images for Kubernetes master...
(2/6) Start to install components for Kubernetes master...
(3/6) Start to configure firewall...
(4/6) Start to initialize Kubernetes master...
✔ Master token 3826ab.fef296d97de13f83 saved into .k8s.token file.
(5/6) Start to config Kubernetes network...
(6/6) Start to install Kubernetes dashboard...

✔ Kubernetes master node initialized...

Remember to reload shell with: source ~/.bashrc before using kubectl!
[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.

[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
 - using env:	export GIN_MODE=release
 - using code:	gin.SetMode(gin.ReleaseMode)

[GIN-debug] GET    /assets/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (4 handlers)
[GIN-debug] HEAD   /assets/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (4 handlers)
[GIN-debug] Loaded HTML Templates (3): 
	- 
	- index.html
	- locale.html

open ./.nodes: no such file or directory
[GIN-debug] GET    /                         --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).IndexHandler-fm (4 handlers)
[GIN-debug] GET    /ws                       --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).Initialize.func1 (4 handlers)
[GIN-debug] GET    /node/list                --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).ListNodesHandler-fm (4 handlers)
[GIN-debug] POST   /node                     --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).CreateNodeHandler-fm (4 handlers)
[GIN-debug] PUT    /node/remove/:id          --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).RemoveNodeHandler-fm (4 handlers)
[GIN-debug] GET    /node/refresh/:id         --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).RefreshNodeHandler-fm (4 handlers)
[GIN-debug] GET    /node/log/:id             --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).GetInstallLog-fm (4 handlers)
[GIN-debug] POST   /install                  --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).InstallNodeHandler-fm (4 handlers)
[GIN-debug] GET    /install/progress/:id/:step --> github.com/Orientsoft/kubekit/controllers.(*MainRouter).NodeProgressHandler-fm (4 handlers)

✔ Toolkit server is listening at: 0.0.0.0:9000
[GIN-debug] Listening and serving HTTP on :9000

接着ctrl+c退出來，而後從新啓動kubekit的dashboard而且放在後臺

./kubekit server &

添加一個node

瀏覽器訪問ip:9000

建立一個一樣安裝着centos 1708最小化安裝的機器，以後打開修改主機名

hostnamectl set-hostname kubekit-node1

接着點擊web界面上的add node，輸入ssh帳號密碼等信息，最後選中點擊start deploy就能夠了

以後你就會在kubernetes的dashboard看到這個節點的詳細信息了

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