minikube快速搭建 k8s单节点环境

kubectl，类似 docker 中的 docker-cli。

JavaEdge.

1560人浏览 · 2020-12-27 16:48:33

JavaEdge. · 2020-12-27 16:48:33 发布

1 前提依赖

2 CPUs or more
2GB of free memory
20GB of free disk space
Internet connection
Container or virtual machine manager, such as: Docker, QEMU, Hyperkit, Hyper-V, KVM, Parallels, Podman, VirtualBox, or VMware Fusion/Workstation

kubectl，类似 docker 中的 docker-cli

2 安装

Linux

x86-64 Binary download

[root@icv-monitor-platform-dev ~]# curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 80.0M  100 80.0M    0     0  1671k      0  0:00:49  0:00:49 --:--:-- 1807k
[root@icv-monitor-platform-dev ~]# sudo install minikube-linux-amd64 /usr/local/bin/minikube
[root@icv-monitor-platform-dev ~]#

macOS

javaedge@JavaEdgedeMac-mini ~ % brew install minikube
Running `brew update --auto-update`...
^C==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/api/formula.jws.json
######################################################################## 100.0%
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/api/cask.jws.json
######################################################################## 100.0%
==> Fetching dependencies for minikube: kubernetes-cli
==> Fetching kubernetes-cli
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/bottles/kubernetes-cli-1.27.1.big_sur.bottle.tar.gz
######################################################################## 100.0%
==> Fetching minikube
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/bottles/minikube-1.30.1.big_sur.bottle.tar.gz
######################################################################## 100.0%
==> Installing dependencies for minikube: kubernetes-cli
==> Installing minikube dependency: kubernetes-cli
==> Pouring kubernetes-cli-1.27.1.big_sur.bottle.tar.gz
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/kubectl
Target /usr/local/bin/kubectl
already exists. You may want to remove it:
  rm '/usr/local/bin/kubectl'

To force the link and overwrite all conflicting files:
  brew link --overwrite kubernetes-cli

To list all files that would be deleted:
  brew link --overwrite --dry-run kubernetes-cli

Possible conflicting files are:
/usr/local/bin/kubectl -> /Applications/Docker.app/Contents/Resources/bin/kubectl
==> Summary
🍺  /usr/local/Cellar/kubernetes-cli/1.27.1: 230 files, 59.2MB
==> Installing minikube
==> Pouring minikube-1.30.1.big_sur.bottle.tar.gz
==> Caveats
zsh completions have been installed to:
  /usr/local/share/zsh/site-functions
==> Summary
🍺  /usr/local/Cellar/minikube/1.30.1: 9 files, 82MB
==> Running `brew cleanup minikube`...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
==> `brew cleanup` has not been run in the last 30 days, running now...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
Removing: /Users/javaedge/Library/Caches/Homebrew/gdk-pixbuf--2.42.10.big_sur.bottle.1.tar.gz... (762.5KB)
Removing: /Users/javaedge/Library/Caches/Homebrew/graphviz--8.0.3.big_sur.bottle.tar.gz... (8.2MB)
Removing: /Users/javaedge/Library/Caches/Homebrew/mysql-client--8.0.32.big_sur.bottle.tar.gz... (40.0MB)
Removing: /Users/javaedge/Library/Caches/Homebrew/netpbm--10.86.38.big_sur.bottle.tar.gz... (1.7MB)
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Removing: /Users/javaedge/Library/Caches/Homebrew/rabbitmq--3.11.13.all.bottle.tar.gz... (35.2MB)
Removing: /Users/javaedge/Library/Caches/Homebrew/webp--1.3.0.big_sur.bottle.2.tar.gz... (930.5KB)
Removing: /usr/local/Cellar/zstd/1.5.4... (31 files, 2.5MB)
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Pruned 15 symbolic links and 7 directories from /usr/local
==> Caveats
==> minikube
zsh completions have been installed to:
  /usr/local/share/zsh/site-functions
javaedge@JavaEdgedeMac-mini ~ %

3 启动

Linux

# 创建单节点的 k8s 集群
[root@icv-monitor-platform-dev ~]# minikube start
😄  minikube v1.30.1 on Centos 7.4.1708 (amd64)
✨  Automatically selected the docker driver. Other choices: none, ssh
🛑  The "docker" driver should not be used with root privileges. If you wish to continue as root, use --force.
💡  If you are running minikube within a VM, consider using --driver=none:
📘    https://minikube.sigs.k8s.io/docs/reference/drivers/none/

❌  Exiting due to DRV_AS_ROOT: The "docker" driver should not be used with root privileges.

[root@icv-monitor-platform-dev ~]# minikube start  --force
😄  minikube v1.30.1 on Centos 7.4.1708 (amd64)
❗  minikube skips various validations when --force is supplied; this may lead to unexpected behavior
✨  Automatically selected the docker driver. Other choices: none, ssh
🛑  The "docker" driver should not be used with root privileges. If you wish to continue as root, use --force.
💡  If you are running minikube within a VM, consider using --driver=none:
📘    https://minikube.sigs.k8s.io/docs/reference/drivers/none/
📌  Using Docker driver with root privileges
👍  Starting control plane node minikube in cluster minikube
🚜  Pulling base image ...
💾  Downloading Kubernetes v1.26.3 preload ...
    > index.docker.io/kicbase/sta...:  373.53 MiB / 373.53 MiB  100.00% 1.41 Mi
    > preloaded-images-k8s-v18-v1...:  397.02 MiB / 397.02 MiB  100.00% 1.17 Mi
❗  minikube was unable to download gcr.io/k8s-minikube/kicbase:v0.0.39, but successfully downloaded docker.io/kicbase/stable:v0.0.39 as a fallback image
🔥  Creating docker container (CPUs=2, Memory=4000MB) ...
🐳  Preparing Kubernetes v1.26.3 on Docker 23.0.2 ...
    ▪ Generating certificates and keys ...
    ▪ Booting up control plane ...
    ▪ Configuring RBAC rules ...
🔗  Configuring bridge CNI (Container Networking Interface) ...
    ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🔎  Verifying Kubernetes components...
🌟  Enabled addons: default-storageclass, storage-provisioner
💡  kubectl not found. If you need it, try: 'minikube kubectl -- get pods -A'
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
[root@icv-monitor-platform-dev ~]#

[root@icv-monitor-platform-dev ~]# minikube kubectl config view
apiVersion: v1
clusters:
- cluster:
    certificate-authority: /root/.minikube/ca.crt
    extensions:
    - extension:
        last-update: Wed, 10 May 2023 23:05:41 CST
        provider: minikube.sigs.k8s.io
        version: v1.30.1
      name: cluster_info
    server: https://192.168.49.2:8443
  name: minikube
contexts:
- context:
    cluster: minikube
    extensions:
    - extension:
        last-update: Wed, 10 May 2023 23:05:41 CST
        provider: minikube.sigs.k8s.io
        version: v1.30.1
      name: context_info
    namespace: default
    user: minikube
  name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
  user:
    client-certificate: /root/.minikube/profiles/minikube/client.crt
    client-key: /root/.minikube/profiles/minikube/client.key
[root@icv-monitor-platform-dev ~]#

4 ssh

[root@icv-monitor-platform-dev ~]# minikube ssh
docker@minikube:~$ docker version 
Client: Docker Engine - Community
 Version:           23.0.2
 API version:       1.42
 Go version:        go1.19.7
 Git commit:        569dd73
 Built:             Mon Mar 27 16:16:18 2023
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          23.0.2
  API version:      1.42 (minimum version 1.12)
  Go version:       go1.19.7
  Git commit:       219f21b
  Built:            Mon Mar 27 16:16:18 2023
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.20
  GitCommit:        2806fc1057397dbaeefbea0e4e17bddfbd388f38
 runc:
  Version:          1.1.5
  GitCommit:        v1.1.5-0-gf19387a
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
docker@minikube:~$

参考

https://minikube.sigs.k8s.io/docs/start/

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