【Kubernetes】通过kind在本机搭建高可用集群

kind安装官方文档：https://kind.sigs.k8s.io/docs/user/quick-start/#installing-with-a-package-manager
kind配置文件说明： https://kind.sigs.k8s.io/docs/user/configuration/
kind git: https://github.com/kubernetes-sigs/kind
k8s 官方文档：https://kubernetes.io/docs/tasks/tools/

k8s 单机安装的方式有很多，如：

• 通过docker desktop桌面一键部署
• 通过minikube部署一个单节点的k8s集群
• 通过kubeadm部署并定理k8s集群工具
• 通过kind部署一个k8s集群，支持多节点, 需要docker

Kind 是 Kubernetes In Docker 的缩写，顾名思义是使用 Docker 容器作为 Node 并将 Kubernetes 部署至其中的一个工具。其实内部也是kubeadm来管理集群的。

这里选择二进制方式安装，so fast and so easy ~

# for Intel Macs
[ $(uname -m) = x86_64 ]&& curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.13.0/kind-darwin-amd64
# for M1 / ARM Macs
[ $(uname -m) = arm64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.13.0/kind-darwin-arm64
chmod +x ./kind
mv ./kind /some-dir-in-your-PATH/kind
# 我的执行 mv ./kind ~/devTools/k8s/kind

# 为kind配置环境变量
vim ~/.zprofile
export PATH=${PATH}:~/devTools/k8s

$ kind version
kind v0.13.0 go1.18 darwin/arm64

先查看一下kind命令，支持哪些操作

$ ./kind --help
kind creates and manages local Kubernetes clusters using Docker container 'nodes'

Usage:
  kind [command]

Available Commands:
  build       Build one of [node-image]
  completion  Output shell completion code for the specified shell (bash, zsh or fish)
  create      Creates one of [cluster]
  delete      Deletes one of [cluster]
  export      Exports one of [kubeconfig, logs]
  get         Gets one of [clusters, nodes, kubeconfig]
  help        Help about any command
  load        Loads images into nodes
  version     Prints the kind CLI version

Flags:
  -h, --help              help for kind
      --loglevel string   DEPRECATED: see -v instead
  -q, --quiet             silence all stderr output
  -v, --verbosity int32   info log verbosity, higher value produces more output
      --version           version for kind

Use "kind [command] --help" for more information about a command.

kind create cluster 命令

$ ./kind create cluster --help
Creates a local Kubernetes cluster using Docker container 'nodes'

Usage:
  kind create cluster [flags]

Flags:
      --config string       path to a kind config file
  -h, --help                help for cluster
      --image string        node docker image to use for booting the cluster
      --kubeconfig string   sets kubeconfig path instead of $KUBECONFIG or $HOME/.kube/config
      --name string         cluster name, overrides KIND_CLUSTER_NAME, config (default kind)
      --retain              retain nodes for debugging when cluster creation fails
      --wait duration       wait for control plane node to be ready (default 0s)

Global Flags:
      --loglevel string   DEPRECATED: see -v instead
  -q, --quiet             silence all stderr output
  -v, --verbosity int32   info log verbosity, higher value produces more output

# 创建一个默认集群并指定集群名称，名称需要满足规则： `^[a-z0-9.-]+$`
$ ./kind create cluster --name my-test-cluster
Creating cluster "my-test-cluster" ...
✓ Ensuring node image (kindest/node:v1.24.0)