minikube

本地使用的 K8s 集群

minikube is local Kubernetes, focusing on making it easy to learn and develop for Kubernetes.

安装

shell
# 安装 rpm 包
yum install -y https://storage.googleapis.com/minikube/releases/latest/minikube-latest.x86_64.rpm
# 安装 deb 包
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube_latest_amd64.deb && sudo dpkg -i minikube_latest_amd64.deb && rm -f minikube_latest_amd64.deb
# 安装 Binary 文件
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && sudo install minikube-linux-amd64 /usr/local/bin/minikube && rm -f minikube-linux-amd64

minikube 帮助信息

minikube 提供并管理针对开发工作流程优化的本地 Kubernetes 集群。

基本命令：
  start            启动本地 Kubernetes 集群
  status           获取本地 Kubernetes 集群状态
  stop             停止正在运行的本地 Kubernetes 集群
  delete           删除本地的 Kubernetes 集群
  dashboard        访问在 minikube 集群中运行的 kubernetes dashboard
  pause            暂停 Kubernetes
  unpause          恢复 Kubernetes

镜像命令
  docker-env       提供将终端的 docker-cli 指向 minikube 内部 Docker Engine 的说明。（用于直接在
minikube 内构建 docker 镜像）
  podman-env       配置环境以使用 minikube's Podman service
  cache            管理 images 缓存
  image            管理 images

配置和管理命令：
  addons           启用或禁用 minikube 插件
  config           修改持久配置值
  profile          获取或列出当前配置文件（集群）
  update-context   IP或端口更改的情况下更新 kubeconfig 配置文件

网络和连接命令：
  service          返回用于连接到 service 的 URL
  tunnel           连接到 LoadBalancer 服务

高级命令：
  mount            将指定的目录挂载到 minikube
  ssh              登录到 minikube 环境（用于调试）
  kubectl          运行与集群版本匹配的 kubectl 二进制文件
  node             添加，删除或者列出其他的节点
  cp               将指定的文件复制到 minikube

故障排除命令
  ssh-key          检索指定节点的 ssh 密钥路径
  ssh-host         检索指定节点的 ssh 主机密钥
  ip               检索指定节点的IP地址
  logs             返回用于调试本地 Kubernetes 集群的日志
  update-check     打印当前版本和最新版本
  version          打印 minikube 版本
  options          显示全局命令行选项列表 (应用于所有命令)。

Other Commands:
  completion       生成命令补全的 shell 脚本
  license          将依赖项的 licenses 输出到一个目录

启动集群

bash
minikube start

与群集交互

• 已经安装了 kubectl

bash
kubectl get po -A

• 使用 minikube 下载对应的 kubectl

bash
minikube kubectl -- get po -A


# 设置别名方便使用 kubectl
cat << EOF >> ~/.bashrc
alias kubectl="minikube kubectl --"
EOF
source ~/.bashrc

kubectl 帮助信息

kubectl controls the Kubernetes cluster manager.

 Find more information at: https://kubernetes.io/docs/reference/kubectl/

Basic Commands (Beginner):
  create          Create a resource from a file or from stdin
  expose          Take a replication controller, service, deployment or pod and expose it as a new Kubernetes service
  run             Run a particular image on the cluster
  set             Set specific features on objects

Basic Commands (Intermediate):
  explain         Get documentation for a resource
  get             Display one or many resources
  edit            Edit a resource on the server
  delete          Delete resources by file names, stdin, resources and names, or by resources and label selector

Deploy Commands:
  rollout         Manage the rollout of a resource
  scale           Set a new size for a deployment, replica set, or replication controller
  autoscale       Auto-scale a deployment, replica set, stateful set, or replication controller

Cluster Management Commands:
  certificate     Modify certificate resources.
  cluster-info    Display cluster information
  top             Display resource (CPU/memory) usage
  cordon          Mark node as unschedulable
  uncordon        Mark node as schedulable
  drain           Drain node in preparation for maintenance
  taint           Update the taints on one or more nodes

Troubleshooting and Debugging Commands:
  describe        Show details of a specific resource or group of resources
  logs            Print the logs for a container in a pod
  attach          Attach to a running container
  exec            Execute a command in a container
  port-forward    Forward one or more local ports to a pod
  proxy           Run a proxy to the Kubernetes API server
  cp              Copy files and directories to and from containers
  auth            Inspect authorization
  debug           Create debugging sessions for troubleshooting workloads and nodes
  events          List events

Advanced Commands:
  diff            Diff the live version against a would-be applied version
  apply           Apply a configuration to a resource by file name or stdin
  patch           Update fields of a resource
  replace         Replace a resource by file name or stdin
  wait            Experimental: Wait for a specific condition on one or many resources
  kustomize       Build a kustomization target from a directory or URL

Settings Commands:
  label           Update the labels on a resource
  annotate        Update the annotations on a resource
  completion      Output shell completion code for the specified shell (bash, zsh, fish, or powershell)

Other Commands:
  api-resources   Print the supported API resources on the server
  api-versions    Print the supported API versions on the server, in the form of "group/version"
  config          Modify kubeconfig files
  plugin          Provides utilities for interacting with plugins
  version         Print the client and server version information

Usage:
  kubectl [flags] [options]

Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).

查看 Kubernetes Dashboard Web UI

bash
minikube dashboard