[HARDWAY] 02. Installing the Client Tools

https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/02-client-tools.md

Tutorial 수행에 필요한 여러가지 Client Tool 을 설치

1. Install CFSSL

### wget 으로 여러가지 파일을 다운받아야 한다. wget이 CentOS 7 에 설치되어 있지 않다면, 아래의 Command 로 설치하자

yum install -y wget

### cfssl 및 cfssljson Download

wget \

  https://storage.googleapis.com/kubernetes-the-hard-way/cfssl/1.4.1/linux/cfssl \

  https://storage.googleapis.com/kubernetes-the-hard-way/cfssl/1.4.1/linux/cfssljson

### 확인

cfssl version

Version: 1.4.1

Runtime: go1.12.12

cfssljson --version

Version: 1.4.1

Runtime: go1.12.12

2. Install kubectl

### Download

wget https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kubectl

chmod +x kubectl

sudo mv kubectl /usr/local/bin/

### 확인

kubectl version --client

Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.6", GitCommit:"dff82dc0de47299ab66c83c626e08b245ab19037", GitTreeState:"clean", BuildDate:"2020-07-15T16:58:53Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}