使用minikube工具在移动云ECS上运行一个单节点的kubernetes集群
minikubehttps://minikube.sigs.k8s.io/docs/start/
安装minikube通过二进制安装，需要查询操作系统CPU的架构
[root@ecs-88500735 ~]# hostnamectl
Static hostname: ecs-88500735
Icon name: computer-vm
Chassis: vm
Machine ID: 2d373eb792a749f68374f19577cd62be
Boot ID: ab5554bbd5494cb385c4bc23012ef416
Virtualization: kvm
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-1160.25.1.el7.x86_64
Architecture: x86-64
执行以下shell命令
curl -LO
https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
[root@ecs-88500735 ~]# curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 69.2M 100 69.2M 0 0 845k 0 0:01:23 0:01:23 --:--:-- 1013k
[root@ecs-88500735 ~]# sudo install minikube-linux-amd64 /usr/local/bin/minikube
[root@ecs-88500735 ~]#
2 Start your cluster
不要使用root用户登录命令终端来启动minikube
[root@ecs-88500735 ~]# minikube start
Centos 7.9.2009 (amd64) 上的 minikube v1.25.2
Unable to pick a default driver. Here is what was considered, in preference order:
Alternatively you could install one of these drivers:
▪ docker: Not installed: exec: "docker": executable file not found in $PATH
▪ kvm2: Not installed: exec: "virsh": executable file not found in $PATH
▪ vmware: Not installed: exec: "docker-machine-driver-vmware": executable file not found in $PATH
▪ podman: Not installed: exec: "podman": executable file not found in $PATH
▪ virtualbox: Not installed: unable to find VBoxManage in $PATH
❌ Exiting due to DRV_NOT_DETECTED: No possible driver was detected. Try specifying --driver, or see https://minikube.sigs.k8s.io/docs/start/
安装docker
https://docs.docker.com/engine/install/centos/
$ sudo yum install -y yum-utils
$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
[root@ecs-88500735 ~]# sudo yum install -y yum-utils 已加载插件：fastestmirror, versionlock Loading mirror speeds from cached hostfile * base: mirrors.ustc.edu.cn * extras: ftp.sjtu.edu.cn * updates: mirrors.ustc.edu.cn 正在解决依赖关系 --> 正在检查事务 ---> 软件包 yum-utils.noarch.0.1.1.31-54.el7_8 将被 安装 --> 正在处理依赖关系 python-kitchen，它被软件包 yum-utils-1.1.31-54.el7_8.noarch 需要 --> 正在处理依赖关系 libxml2-python，它被软件包 yum-utils-1.1.31-54.el7_8.noarch 需要 --> 正在检查事务 ---> 软件包 libxml2-python.x86_64.0.2.9.1-6.el7_9.6 将被 安装 ---> 软件包 python-kitchen.noarch.0.1.1.1-5.el7 将被 安装 --> 解决依赖关系完成 依赖关系解决 ================================================================================ Package 架构 版本 源 大小 ================================================================================ 正在安装: yum-utils noarch 1.1.31-54.el7_8 base 122 k 为依赖而安装: libxml2-python x86_64 2.9.1-6.el7_9.6 updates 247 k python-kitchen noarch 1.1.1-5.el7 base 267 k 事务概要 ================================================================================ 安装 1 软件包 (+2 依赖软件包) 总下载量：636 k 安装大小：3.2 M Downloading packages: (1/3): libxml2-python-2.9.1-6.el7_9.6.x86_64.rpm | 247 kB 00:00 (2/3): python-kitchen-1.1.1-5.el7.noarch.rpm | 267 kB 00:00 (3/3): yum-utils-1.1.31-54.el7_8.noarch.rpm | 122 kB 00:01 -------------------------------------------------------------------------------- 总计 516 kB/s | 636 kB 00:01 Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安装 : libxml2-python-2.9.1-6.el7_9.6.x86_64 1/3 正在安装 : python-kitchen-1.1.1-5.el7.noarch 2/3 正在安装 : yum-utils-1.1.31-54.el7_8.noarch 3/3 验证中 : python-kitchen-1.1.1-5.el7.noarch 1/3 验证中 : yum-utils-1.1.31-54.el7_8.noarch 2/3 验证中 : libxml2-python-2.9.1-6.el7_9.6.x86_64 3/3 已安装: yum-utils.noarch 0:1.1.31-54.el7_8 作为依赖被安装: libxml2-python.x86_64 0:2.9.1-6.el7_9.6 python-kitchen.noarch 0:1.1.1-5.el7 完毕！ [root@ecs-88500735 ~]# [root@ecs-88500735 ~]# sudo yum-config-manager > --add-repo > https://download.docker.com/linux/centos/docker-ce.repo 已加载插件：fastestmirror, versionlock adding repo from: https://download.docker.com/linux/centos/docker-ce.repo grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo repo saved to /etc/yum.repos.d/docker-ce.repo [root@ecs-88500735 ~]#安装Docker Engine
$ sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin
[root@ecs-88500735 ~]# sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin
已加载插件：fastestmirror, versionlock
Loading mirror speeds from cached hostfile
* base: mirrors.ustc.edu.cn
* extras: ftp.sjtu.edu.cn
* updates: mirrors.ustc.edu.cn
docker-ce-stable | 3.5 kB 00:00
(1/2): docker-ce-stable/7/x86_64/updateinfo | 55 B 00:00
(2/2): docker-ce-stable/7/x86_64/primary_db | 78 kB 00:00
正在解决依赖关系
--> 正在检查事务
---> 软件包 containerd.io.x86_64.0.1.6.4-3.1.el7 将被 安装
--> 正在处理依赖关系 container-selinux >= 2:2.74，它被软件包 containerd.io-1.6.4-3.1.el7.x86_64 需要
--> 正在处理依赖关系 libseccomp，它被软件包 containerd.io-1.6.4-3.1.el7.x86_64 需要
---> 软件包 docker-ce.x86_64.3.20.10.16-3.el7 将被 安装
--> 正在处理依赖关系 docker-ce-rootless-extras，它被软件包 3:docker-ce-20.10.16-3.el7.x86_64 需要
---> 软件包 docker-ce-cli.x86_64.1.20.10.16-3.el7 将被 安装
--> 正在处理依赖关系 docker-scan-plugin(x86-64)，它被软件包 1:docker-ce-cli-20.10.16-3.el7.x86_64 需要
---> 软件包 docker-compose-plugin.x86_64.0.2.5.0-3.el7 将被 安装
--> 正在检查事务
---> 软件包 container-selinux.noarch.2.2.119.2-1.911c772.el7_8 将被 安装
---> 软件包 docker-ce-rootless-extras.x86_64.0.20.10.16-3.el7 将被 安装
--> 正在处理依赖关系 fuse-overlayfs >= 0.7，它被软件包 docker-ce-rootless-extras-20.10.16-3.el7.x86_64 需要
--> 正在处理依赖关系 slirp4netns >= 0.4，它被软件包 docker-ce-rootless-extras-20.10.16-3.el7.x86_64 需要
---> 软件包 docker-scan-plugin.x86_64.0.0.17.0-3.el7 将被 安装
---> 软件包 libseccomp.x86_64.0.2.3.1-4.el7 将被 安装
--> 正在检查事务
---> 软件包 fuse-overlayfs.x86_64.0.0.7.2-6.el7_8 将被 安装
--> 正在处理依赖关系 libfuse3.so.3(FUSE_3.2)(64bit)，它被软件包 fuse-overlayfs-0.7.2-6.el7_8.x86_64 需要
--> 正在处理依赖关系 libfuse3.so.3(FUSE_3.0)(64bit)，它被软件包 fuse-overlayfs-0.7.2-6.el7_8.x86_64 需要
--> 正在处理依赖关系 libfuse3.so.3()(64bit)，它被软件包 fuse-overlayfs-0.7.2-6.el7_8.x86_64 需要
---> 软件包 slirp4netns.x86_64.0.0.4.3-4.el7_8 将被 安装
--> 正在检查事务
---> 软件包 fuse3-libs.x86_64.0.3.6.1-4.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
================================================================================
Package 架构 版本 源 大小
================================================================================
正在安装:
containerd.io x86_64 1.6.4-3.1.el7 docker-ce-stable 33 M
docker-ce x86_64 3:20.10.16-3.el7 docker-ce-stable 22 M
docker-ce-cli x86_64 1:20.10.16-3.el7 docker-ce-stable 29 M
docker-compose-plugin x86_64 2.5.0-3.el7 docker-ce-stable 7.0 M
为依赖而安装:
container-selinux noarch 2:2.119.2-1.911c772.el7_8 extras 40 k
docker-ce-rootless-extras
x86_64 20.10.16-3.el7 docker-ce-stable 8.2 M
docker-scan-plugin x86_64 0.17.0-3.el7 docker-ce-stable 3.7 M
fuse-overlayfs x86_64 0.7.2-6.el7_8 extras 54 k
fuse3-libs x86_64 3.6.1-4.el7 extras 82 k
libseccomp x86_64 2.3.1-4.el7 base 56 k
slirp4netns x86_64 0.4.3-4.el7_8 extras 81 k
事务概要
================================================================================
安装 4 软件包 (+7 依赖软件包)
总下载量：104 M
安装大小：419 M
Is this ok [y/d/N]: y
Downloading packages:
(1/11): container-selinux-2.119.2-1.911c772.el7_8.noarch.r | 40 kB 00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-20.10.16-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
docker-ce-20.10.16-3.el7.x86_64.rpm 的公钥尚未安装
(2/11): docker-ce-20.10.16-3.el7.x86_64.rpm | 22 MB 00:58
(3/11): containerd.io-1.6.4-3.1.el7.x86_64.rpm | 33 MB 01:06
(4/11): docker-ce-rootless-extras-20.10.16-3.el7.x86_64.rp | 8.2 MB 00:16
(5/11): docker-compose-plugin-2.5.0-3.el7.x86_64.rpm | 7.0 MB 00:14
(6/11): fuse3-libs-3.6.1-4.el7.x86_64.rpm | 82 kB 00:00
(7/11): libseccomp-2.3.1-4.el7.x86_64.rpm | 56 kB 00:00
(8/11): slirp4netns-0.4.3-4.el7_8.x86_64.rpm | 81 kB 00:00
(9/11): fuse-overlayfs-0.7.2-6.el7_8.x86_64.rpm | 54 kB 00:08
(10/11): docker-scan-plugin-0.17.0-3.el7.x86_64.rpm | 3.7 MB 00:10
(11/11): docker-ce-cli-20.10.16-3.el7.x86_64.rpm | 29 MB 01:00
--------------------------------------------------------------------------------
总计 901 kB/s | 104 MB 01:58
从 https://download.docker.com/linux/centos/gpg 检索密钥
导入 GPG key 0x621E9F35:
用户ID : "Docker Release (CE rpm) "
指纹 : 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
来自 : https://download.docker.com/linux/centos/gpg
是否继续？[y/N]：y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : libseccomp-2.3.1-4.el7.x86_64 1/11
正在安装 : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 2/11
setsebool: SELinux is disabled.
正在安装 : containerd.io-1.6.4-3.1.el7.x86_64 3/11
正在安装 : slirp4netns-0.4.3-4.el7_8.x86_64 4/11
正在安装 : 1:docker-ce-cli-20.10.16-3.el7.x86_64 5/11
正在安装 : docker-scan-plugin-0.17.0-3.el7.x86_64 6/11
正在安装 : fuse3-libs-3.6.1-4.el7.x86_64 7/11
正在安装 : fuse-overlayfs-0.7.2-6.el7_8.x86_64 8/11
正在安装 : 3:docker-ce-20.10.16-3.el7.x86_64 9/11
正在安装 : docker-ce-rootless-extras-20.10.16-3.el7.x86_64 10/11
正在安装 : docker-compose-plugin-2.5.0-3.el7.x86_64 11/11
验证中 : fuse3-libs-3.6.1-4.el7.x86_64 1/11
验证中 : docker-ce-rootless-extras-20.10.16-3.el7.x86_64 2/11
验证中 : fuse-overlayfs-0.7.2-6.el7_8.x86_64 3/11
验证中 : docker-compose-plugin-2.5.0-3.el7.x86_64 4/11
验证中 : containerd.io-1.6.4-3.1.el7.x86_64 5/11
验证中 : slirp4netns-0.4.3-4.el7_8.x86_64 6/11
验证中 : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 7/11
验证中 : libseccomp-2.3.1-4.el7.x86_64 8/11
验证中 : docker-scan-plugin-0.17.0-3.el7.x86_64 9/11
验证中 : 1:docker-ce-cli-20.10.16-3.el7.x86_64 10/11
验证中 : 3:docker-ce-20.10.16-3.el7.x86_64 11/11
已安装:
containerd.io.x86_64 0:1.6.4-3.1.el7
docker-ce.x86_64 3:20.10.16-3.el7
docker-ce-cli.x86_64 1:20.10.16-3.el7
docker-compose-plugin.x86_64 0:2.5.0-3.el7
作为依赖被安装:
container-selinux.noarch 2:2.119.2-1.911c772.el7_8
docker-ce-rootless-extras.x86_64 0:20.10.16-3.el7
docker-scan-plugin.x86_64 0:0.17.0-3.el7
fuse-overlayfs.x86_64 0:0.7.2-6.el7_8
fuse3-libs.x86_64 0:3.6.1-4.el7
libseccomp.x86_64 0:2.3.1-4.el7
slirp4netns.x86_64 0:0.4.3-4.el7_8
完毕！
[root@ecs-88500735 ~]#
[root@ecs-88500735 ~]# minikube start --driver=docker Centos 7.9.2009 (amd64) 上的 minikube v1.25.2 ✨ 根据用户配置使用 docker 驱动程序 Exiting due to PROVIDER_DOCKER_NOT_RUNNING: "docker version --format -" exit status 1: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 建议：Start the Docker service 文档：https://minikube.sigs.k8s.io/docs/drivers/docker/
[root@ecs-88500735 ~]# systemctl start docker.service [root@ecs-88500735 ~]# minikube start --driver=docker Centos 7.9.2009 (amd64) 上的 minikube v1.25.2 ✨ 根据用户配置使用 docker 驱动程序 The "docker" driver should not be used with root privileges. If you are running minikube within a VM, consider using --driver=none: https://minikube.sigs.k8s.io/docs/reference/drivers/none/ ❌ Exiting due to DRV_AS_ROOT: The "docker" driver should not be used with root privileges.切换用户
[root@ecs-88500735 ~]# useradd mini [root@ecs-88500735 ~]# passwd mini 更改用户 mini 的密码 。 新的 密码： 重新输入新的 密码： passwd：所有的身份验证令牌已经成功更新。 [root@ecs-88500735 ~]# su mini [mini@ecs-88500735 root]$ clear
[mini@ecs-88500735 root]$ minikube start --driver=docker Centos 7.9.2009 (amd64) 上的 minikube v1.25.2 ✨ 根据用户配置使用 docker 驱动程序 Exiting due to PROVIDER_DOCKER_NEWGRP: "docker version --format -" exit status 1: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/version": dial unix /var/run/docker.sock: connect: permission denied 建议：Add your user to the 'docker' group: 'sudo usermod -aG docker $USER && newgrp docker' 文档：https://docs.docker.com/engine/install/linux-postinstall/
添加用户到 docker groupAdd your user to the ‘docker’ group: ‘sudo usermod -aG docker $USER && newgrp docker’
[mini@ecs-88500735 root]$ su root 密码： [root@ecs-88500735 ~]# sudo usermod -aG docker mini && newgrp docker [root@ecs-88500735 ~]#回到mini用户 并执行minikube start
minikube start --driver=docker
[root@ecs-88500735 ~]# su mini
[mini@ecs-88500735 root]$ minikube start --driver=docker
Centos 7.9.2009 (amd64) 上的 minikube v1.25.2
✨ 根据用户配置使用 docker 驱动程序
Starting control plane node minikube in cluster minikube
Pulling base image ...
Downloading Kubernetes v1.23.3 preload ...
> preloaded-images-k8s-v17-v1...: 505.68 MiB / 505.68 MiB 100.00% 906.95 K
> index.docker.io/kicbase/sta...: 379.06 MiB / 379.06 MiB 100.00% 542.67 K
❗ minikube was unable to download gcr.io/k8s-minikube/kicbase:v0.0.30, but successfully downloaded docker.io/kicbase/stable:v0.0.30 as a fallback image
Creating docker container (CPUs=2, Memory=2200MB) ...
❗ This container is having trouble accessing https://k8s.gcr.io
To pull new external images, you may need to configure a proxy: https://minikube.sigs.k8s.io/docs/reference/networking/proxy/
正在 Docker 20.10.12 中准备 Kubernetes v1.23.3…
▪ kubelet.housekeeping-interval=5m
▪ Generating certificates and keys ...
▪ Booting up control plane ...
▪ Configuring RBAC rules ...
Verifying Kubernetes components...
▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
Enabled addons: default-storageclass, storage-provisioner
kubectl not found. If you need it, try: 'minikube kubectl -- get pods -A'
Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
3 Interact with your cluster
$ minikube kubectl – get pods -A
[mini@ecs-88500735 root]$ minikube kubectl -- get pods -A
> kubectl.sha256: 64 B / 64 B [--------------------------] 100.00% ? p/s 0s
> kubectl: 44.43 MiB / 44.43 MiB [-------------] 100.00% 923.85 KiB p/s 49s
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-64897985d-k449z 1/1 Running 0 3m43s
kube-system etcd-minikube 1/1 Running 0 3m58s
kube-system kube-apiserver-minikube 1/1 Running 0 3m58s
kube-system kube-controller-manager-minikube 1/1 Running 0 3m58s
kube-system kube-proxy-cjvmw 1/1 Running 0 3m44s
kube-system kube-scheduler-minikube 1/1 Running 0 3m58s
kube-system storage-provisioner 1/1 Running 1 (3m8s ago) 3m48s
$ minikube dashboard
[mini@ecs-88500735 root]$ minikube dashboard
正在开启 dashboard ...
▪ Using image kubernetesui/metrics-scraper:v1.0.7
▪ Using image kubernetesui/dashboard:v2.3.1
樂 正在验证 dashboard 运行情况 ...
Launching proxy ...
樂 正在验证 proxy 运行状况 ...
Opening http://127.0.0.1:35499/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/ in your default browser...
http://127.0.0.1:35499/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/
用nginx反向代理127.0.0.1:35499
新开命令终端
[root@ecs-88500735 ~]# cd /etc/nginx/ [root@ecs-88500735 nginx]# ls conf.d mime.types nginx.conf scgi_params fastcgi_params modules nginx.conf.bak uwsgi_params [root@ecs-88500735 nginx]# vi nginx.conf
server {
listen 7080;
server_name 36.133.79.76;
location / {
root html;
index index.htm index.html;
proxy_pass http://127.0.0.1:35499;
}
}
[root@ecs-88500735 nginx]# lsof -i:7080 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME nginx 92871 root 7u IPv4 642810 0t0 TCP *:empowerid (LISTEN) nginx 92872 nginx 7u IPv4 642810 0t0 TCP *:empowerid (LISTEN) nginx 92873 nginx 7u IPv4 642810 0t0 TCP *:empowerid (LISTEN)在浏览器访问
http://36.133.79.76:7080/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/
部署tomcat和redis应用
容器启动正常
[mini@ecs-88500735 root]$ minikube kubectl get service NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1443/TCP 26h tomcat-1100 LoadBalancer 10.98.86.92 1100:30056/TCP 75s [mini@ecs-88500735 root]$ minikube service tomcat-1100 --url http://192.168.49.2:30056 [mini@ecs-88500735 root]$ su root 密码： [root@ecs-88500735 ~]# curl http://192.168.49.2:30056 HTTP Status 404 – Not Found HTTP Status 404 – Not FoundType Status Report
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
Apache Tomcat/10.0.20[root@ecs-88500735 ~]#
[root@ecs-88500735 ~]# vi /etc/nginx/nginx.conf
server {
listen 1100;
server_name 36.133.79.76;
location / {
root html;
index index.htm index.html;
proxy_pass http://192.168.49.2:30056;
}
}
[root@ecs-88500735 ~]# nginx -s reload
