kind-for-cka

kind reference

https://kind.sigs.k8s.io/

https://github.com/kubernetes-sigs/kind/

kind binary

open release page

https://github.com/kubernetes-sigs/kind/releases/

download binary

cd  /usr/local/bin     
wget   https://github.com/kubernetes-sigs/kind/releases/download/0.2.1/kind-linux-amd64


...



wget   https://github.com/kubernetes-sigs/kind/releases/download/v0.6.1/kind-linux-amd64

mv  kind-linux-amd64    kind

chmod +x  /path-to-kind/kind

wget https://raw.githubusercontent.com/kubernetes-sigs/kind/master/site/content/docs/user/kind-example-config.yaml

create cluster

kind create cluster --config kind-example-config.yaml

need more than 1 node ?

https://kind.sigs.k8s.io/docs/user/quick-start/#configuring-your-kind-cluster

wget https://raw.githubusercontent.com/latermonk/kind-for-cka/master/config/multi-node-cluster.conf

kind create cluster --config  config-file

where config-file:

# three node (two workers) cluster config
kind: Config
apiVersion: kind.sigs.k8s.io/v1alpha2
nodes:
- role: control-plane
- role: worker
  replicas: 2
  

zsh and oh my zsh installation:

yum -y install zsh

chsh -s /bin/zsh

yum install -y git

sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

or 

 sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"

CentOS 7

go环境搭建

yum -y install bash-completion

安装golang

install epel-release if needed !!!

yum -y install epel-release

yum install -y golang

go version

配置环境

mkdir $HOME/go

vim ~/.bashrc
#vim ~/.zshrc

export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin

. $HOME/.bashrc

检查环境

go env

安装docker

安装docker

方法一：

cd /etc/yum.repos.d

wget  https://download.docker.com/linux/centos/docker-ce.repo

yum install -y docker-ce

方法二：

curl -fsSL get.docker.com -o get-docker.sh

sh get-docker.sh

配置国内源【并非完全必要】

mkdir  /etc/docker

vim /etc/docker/daemon.json

{
  "registry-mirrors": ["https://registry.docker-cn.com"]
}

重启docker并配置开机启动

systemctl restart docker &&  systemctl  enable docker 

安装kubectl

方法一：

curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl

chmod +x ./kubectl


mv ./kubectl /usr/local/bin/kubectl

方法二：

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOF
yum install -y kubectl

方法三： 国内阿里云的源

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
        http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

安装kubectl

yum -y install kubectl

安装kind

go get sigs.k8s.io/kind 

kind create cluster

找不到kind：

错误方法

添加
export PATH=$PATH:/root/go/bin
到.bashrc

正确方法： 在配置go环境变量的时候就设置好路径$PATH

export GOPATH=/root/go
export PATH=$PATH:$GOPATH/bin

shell补全

shell补全

kubectl补全

bash

source <(kubectl completion bash) 
echo "source <(kubectl completion bash)" >> ~/.bashrc 

zsh

source <(kubectl completion zsh)

edit .zshrc and add the following lines

if [ $commands[kubectl] ]; then
  source <(kubectl completion zsh)
fi

设置配置文件

export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"

集群测试

kubectl cluster-info

集群创建指南

创建
删除
...

.zshrc中写入的内容

#go env setup
export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin

#kubectl completion
if [ $commands[kubectl] ]; then
  source <(kubectl completion zsh)
fi

export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"

#kubeclt alias
alias k=kubectl

参考： https://github.com/kubernetes-sigs/kind/tree/master/docs/user

reference: https://github.com/kubernetes-sigs/kind