【目录】
(1)k8s快速介绍
(2)硬件虚拟机环境Ubuntu18.10-server安装
(3)Docker-CE安装及配置
(4)Kubernetes 安装及部署
(5)创建企业Kubernetes多主机集群环境
(6)Kubernetes集群mysql应用实例
(7)Kubernetes集群tomcat应用集群实例
(8)Kubernetes集群beego新闻发布web系统集群实例
【资源下载】
完整教程markdown下载 提取码: 92hy
kubernetes(k8s)2小时快速部署教程视频 提取码:dk4i
kubernetes-Master-Node虚拟机完整镜像文件 提取码: 2wf8
课程相关其他相关安装包及镜像 提取码: nkfj
四、Kubernetes 安装及部署
4.1 k8s安装环境准备
4.1.1 配置并安装k8s国内源
创建配置文件
sudo touch /etc/apt/sources.list.d/kubernetes.list-
添加写权限
itcast@master:~$ sudo chmod 666 /etc/apt/sources.list.d/kubernetes.list再添加，内容如下:
deb http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial main
- 执行
sudo apt update更新操作系统源，开始会遇见如下错误
tcast@master:~$ sudo apt update
Get:1 http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial InRelease [8,993 B]
Err:1 http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB
Hit:2 http://mirrors.aliyun.com/ubuntu cosmic InRelease
Hit:3 http://mirrors.aliyun.com/ubuntu cosmic-updates InRelease
Hit:4 http://mirrors.aliyun.com/ubuntu cosmic-backports InRelease
Hit:5 http://mirrors.aliyun.com/ubuntu cosmic-security InRelease
Err:6 https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu cosmic InRelease
Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 202.141.176.110 443]
Reading package lists... Done
W: GPG error: http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB
E: The repository 'http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
其中：
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB
签名认证失败，需要重新生成。记住上面的NO_PUBKEY 6A030B21BA07F4FB
-
添加认证key
运行如下命令，添加错误中对应的key(错误中NO_PUBKEY后面的key的后8位)
gpg --keyserver keyserver.ubuntu.com --recv-keys BA07F4FB接着运行如下命令，确认看到OK，说明成功，之后进行安装:
gpg --export --armor BA07F4FB | sudo apt-key add - 再次重新
sudo apt update更新系统下载源数据列表
itcast@master:~$ sudo apt update
Hit:1 https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu cosmic InRelease
Hit:2 http://mirrors.aliyun.com/ubuntu cosmic InRelease
Hit:3 http://mirrors.aliyun.com/ubuntu cosmic-updates InRelease
Hit:4 http://mirrors.aliyun.com/ubuntu cosmic-backports InRelease
Hit:5 http://mirrors.aliyun.com/ubuntu cosmic-security InRelease
Get:6 http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial InRelease [8,993 B]
Ign:7 http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial/main amd64 Packages
Get:7 http://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial/main amd64 Packages [26.6 kB]
Fetched 26.6 kB in 42s (635 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
165 packages can be upgraded. Run 'apt list --upgradable' to see them.
以上没有报和错误异常，表示成功。
4.1.2 禁止基础设施
-
禁止防火墙
$ sudo ufw disable Firewall stopped and disabled on system startup -
关闭swap
# 成功 $ sudo swapoff -a # 永久关闭swap分区 $ sudo sed -i 's/.*swap.*/#&/' /etc/fstab 禁止selinux
# 安装操控selinux的命令
$ sudo apt install -y selinux-utils
# 禁止selinux
$ setenforce 0
# 重启操作系统
$ shutdown -r now
# 查看selinux是否已经关闭
$ sudo getenforce
Disabled(表示已经关闭)
4.2 k8s系统网络配置
(1) 配置内核参数，将桥接的IPv4流量传递到iptables的链
创建/etc/sysctl.d/k8s.conf文件
添加内容如下:
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
vm.swappiness = 0
(2) 执行命令使修改生效
# 【候选】建议执行下面的命令
$ sudo modprobe br_netfilter
$ sudo sysctl -p /etc/sysctl.d/k8s.conf
4.3 安装k8s
注意: 切换到root用户
$ su
-
安装Kubernetes 目前安装版本
v1.13.1$ apt update && apt-get install -y kubelet=1.13.1-00 kubernetes-cni=0.6.0-00 kubeadm=1.13.1-00 kubectl=1.13.1-00
-
设置为开机重启
$ sudo systemctl enable kubelet && systemctl start kubelet $ sudo shutdown -r now
4.4 验证k8s
使用root用户登录
Master主机-
执行如下个命令
kubectl get nodes
输出如下
$ kubectl get nodes
The connection to the server localhost:8080 was refused - did you specify the right host or port?
-
查看当前k8s版本
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", GitCommit:"eec55b9ba98609a46fee712359c7b5b365bdd920", GitTreeState:"clean", BuildDate:"2018-12-13T10:39:04Z", GoVersion:"go1.11.2", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
关于作者：
作者：Aceld(刘丹冰)
简书号：IT无崖子
mail: danbing.at@gmail.com
github: https://github.com/aceld
原创书籍gitbook: http://legacy.gitbook.com/@aceld
原创声明:未经作者允许请勿转载, 如果转载请注明出处
