Minikube is a tool that makes it easy to run Kubernetes locally. Minikube runs a single-node Kubernetes cluster inside a VM on your laptop for users looking to try out Kubernetes or develop with it day-to-day.

More details can be found at https://github.com/kubernetes/minikube

Step 1 - Start Minikube

Minikube has been installed and configured in the environment. Check that it is properly installed, by running the minikube version command:

minikube version

Start the cluster, by running the minikube start command:

minikube start

Great! You now have a running Kubernetes cluster in your online terminal. Minikube started a virtual machine for you, and a Kubernetes cluster is now running in that VM.

Step 2 - Cluster Info

The cluster can be interacted with using the kubectl CLI. This is the main approach used for managing Kubernetes and the applications running on top of the cluster.

Details of the cluster and its health status can be discovered via

kubectl cluster-info

To view the nodes in the cluster using

kubectl get nodes

If the node is marked as NotReady then it is still starting the components.

This command shows all nodes that can be used to host our applications. Now we have only one node, and we can see that it’s status is ready (it is ready to accept applications for deployment).

Step 3 - Deploy Containers

With a running Kubernetes cluster, containers can now be deployed.

Using kubectl run, it allows containers to be deployed onto the cluster -

kubectl run first-deployment --image=katacoda/docker-http-server --port=

The status of the deployment can be discovered via the running Pods -

kubectl get pods

Once the container is running it can be exposed via different networking options, depending on requirements. One possible solution is NodePort, that provides a dynamic port to a container.

kubectl expose deployment first-deployment --port= --type=NodePort

The command below finds the allocated port and executes a HTTP request.

export PORT=$(kubectl get svc first-deployment -o go-template='{{range.spec.ports}}{{if .nodePort}}{{.nodePort}}{{"\n"}}{{end}}{{end}}') echo "Accessing host01:$PORT" curl host01:$PORT

The results is the container that processed the request.

Step 4 - Dashboard

The Kubernetes dashboard allows you to view your applications in a UI. In this deployment, the dashboard has been made available on port 30000.

The URL to the dashboard is https://2886795296-30000-ollie02.environments.katacoda.com/

Kubernetes - Launch Single Node Kubernetes Cluster的更多相关文章

  1. K8s - Kubernetes重要概念介绍(Cluster、Master、Node、Pod、Controller、Service、Namespace)

    K8s - Kubernetes重要概念介绍(Cluster.Master.Node.Pod.Controller.Service.Namespace)       Kubernetes 是目前发展最 ...

  2. Hadoop MapReduce Next Generation - Setting up a Single Node Cluster

    Hadoop MapReduce Next Generation - Setting up a Single Node Cluster. Purpose This document describes ...

  3. Setting up a Single Node Cluster Hadoop on Ubuntu/Debian

    Hadoop: Setting up a Single Node Cluster. Hadoop: Setting up a Single Node Cluster. Purpose Prerequi ...

  4. kubernetes实践之一:kubernetes二进制包安装

    kubernetes二进制部署 1.环境规划 软件 版本 Linux操作系统 CentOS Linux release 7.6.1810 (Core) Kubernetes 1.9 Docker 18 ...

  5. kubernetes之kubeadm 安装kubernetes 高可用集群

    1. 架构信息 系统版本:CentOS 7.6 内核:3.10.0-957.el7.x86_64 Kubernetes: v1.14.1 Docker-ce: 18.09.5 推荐硬件配置:4核8G ...

  6. Hadoop Single Node Setup(hadoop本地模式和伪分布式模式安装-官方文档翻译 2.7.3)

    Purpose(目标) This document describes how to set up and configure a single-node Hadoop installation so ...

  7. 【Kubernetes学习之一】Kubernetes 简介

    环境 centos 7 一.概念和组件Kubernetes是Google开源的一个容器编排引擎,它支持自动化部署.大规模可伸缩.应用容器化管理,简称k8s. 1.Master Kubernetes中的 ...

  8. Serverless Kubernetes 和 Serverless on Kubernetes 的区别

    什么是 Kubernetes? Kubernetes 是一个可移植的.可扩展的开源平台,用于管理容器化的工作负载和服务,可促进声明式配置和自动化. 什么是 Serverless ? 无服务器是一种云原 ...

  9. redis集群出现JedisNoReachableClusterNodeException异常(No reachable node in cluster)

    上午午好好的,突然抛了如下异常: Exception in thread "main" redis.clients.jedis.exceptions.JedisNoReachabl ...

随机推荐

  1. [Data Structures and Algorithms - 1] Introduction & Mathematics

    References: 1. Stanford University CS97SI by Jaehyun Park 2. Introduction to Algorithms 3. Kuangbin' ...

  2. HDU 1569 方格取数(2)(最大流最小割の最大权独立集)

    Description 给你一个m*n的格子的棋盘,每个格子里面有一个非负数. 从中取出若干个数,使得任意的两个数所在的格子没有公共边,就是说所取数所在的2个格子不能相邻,并且取出的数的和最大.   ...

  3. instanceof 运算符简介

    文章摘自: http://www.ibm.com/developerworks/cn/web/1306_jiangjj_jsinstanceof/ https://developer.mozilla. ...

  4. 第四课——MFC应用程序框架

    一.MFC应用程序类型 上篇文章的彩蛋:可通过使用MFC应用程序向导(MFC AppWizard)的功能来创建所需要的应用程序,这意味着不需要输入任何代码.MFC除了应用程序向导,还对应用程序项目有着 ...

  5. Git 命令基本应用

    两种建立仓库的方法: (1)在本地文件路径下建立仓库:git init (2)在代码托管网站上克隆项目:git clone [url] 查看该分支下的文件情况:git status 添加远程仓库源:g ...

  6. sql分页使用join提高性能

    今天在分析系统中的分页sql时意外知道了使用join可以提高分页性能. 逻辑是join部分使用单一表,单一字段排序分页,然后join大表.

  7. lintcode-14-二分查找

    二分查找 给定一个排序的整数数组(升序)和一个要查找的整数target,用O(logn)的时间查找到target第一次出现的下标(从0开始),如果target不存在于数组中,返回-1. 样例 在数组 ...

  8. html .net 网页,网站标题添图标

    <link rel="icon" href="../favicon.ico" type="image/x-icon" /> &l ...

  9. ubuntu搭建eclipse+svn

    最近工作中要求使用ubuntu系统进行开发,小编第一次使用,将搭建环境的过程中一点点经验分享给大家.ubuntu的使用跟linux差不太多,大多数命令还是一样的.不过界面要好看很多,O(∩_∩)O哈哈 ...

  10. Jenkins系列-Jenkins初始化配置

    初始化 访问,如:127.0.0.1:8088/Jenkins 第一次要求输入密码,初始密码在文件中查看. 执行以下命令查看 $ cat ${USER_HOME}\.jenkins\secrets\i ...