使用KubeKey快速交付k8sv1.28.8叢集

2025-05-03 23:16 馬哥Linux運維

伺服器配置

主機名 IP CPU 記憶體 系統盤 資料盤 用途
vm-16-11-ubuntu 192.168.9.131 128 256Gi 500GB 1TB k8s-master
vm-16-16-ubuntu 192.168.9.132 128 256Gi 500GB 1TB k8s-master
vm-16-7-ubuntu 192.168.9.133 128 256Gi 500GB 1TB k8s-master
實戰環境涉及軟體版本資訊：
  • 作業系統：Ubuntu 20.04 LTS
  • K8s：v1.28.8
  • Containerd：1.7.13
  • KubeKey: v3.1.1

使用kubekey部署k8s

1. 作業系統基礎配置
主機名、DNS解析、時鐘同步、防火牆、系統依賴軟體等忽略
apt-getinstall-yinstallcurl

socat conntrack ebtables ipset ipvsadm

2. 安裝部署 K8s
2.1 下載 KubeKey
https://github.com/kubesphere/kubekey
  • 下載最新版的 KubeKey

root

@VM-16-7-

ubuntu:

~# mkdir ~/kubekey

root

@VM-16-7-

ubuntu:

~# cd ~/kubekey

root

@VM-16-7-

ubuntu:

~/

kubekey

# curl -sfL https://get-kk.kubesphere.io | sh -

Downloading kubekey v3.

1.1from

https:

//github.com/kubesphere/kubekey/releases/download/v3.1.1/kubekey-v3.1.1-linux-amd64.tar.gz ...

Kubekey v3.

1.1

Download Complete

!

root

@VM-16-7-

ubuntu:

~/

kubekey

# ll

total

116376

drwxr

-

xr

-

x

2

root root

4096

May

717

:

50

.

/

drwx

------ 7 root root 4096 May 7 17:49 ../
-

rwxr

-

xr

-

x

1

root root

81950729

Apr

1612

:

30

kk

*
-

rw

-

r

--r-- 1 root root 37206726 May 7 17:50 kubekey-v3.1.1-linux-amd64.tar.gz

  • 檢視 KubeKey 支援的 Kubernetes 版本列表 ./kk version --show-supported-k8s

root

@VM-16-7-

ubuntu:

~/

kubekey

# ./kk version --show-supported-k8s

...

v1.

28.0

v1.

28.1

v1.

28.2

v1.

28.3

v1.

28.4

v1.

28.5

v1.

28.6

v1.

28.7

v1.

28.8

v1.

29.0

v1.

29.1

v1.

29.2

v1.

29.3

root

@VM-16-7-

ubuntu:

~/

kubekey

#

root

@VM-16-7-

ubuntu:

~/

kubekey

# ./kk create config -f k8s-v1288.yaml --with-kubernetes v1.28.8

Generate KubeKey config

file

successfully

2.2 建立 K8s 叢集部署配置檔案
  1. 建立叢集配置檔案
本文選擇了 K8s v1.28.8。因此，指定配置檔名稱為 k8s-v1288.yaml/

root

@VM-16-7-

ubuntu:

~/

kubekey

# ./kk create cluster -f k8s-v1288.yaml

_ __ _ _ __

||//||||//
||//

_ _

||

__ ___

||//

___ _ _

|

\

||||

'_ \

/

_ \ \

/

_ \

|||
||

\ \

|

_

|||

_)

|

__

/|

\ \ __

/|

_

||

\_

|

\_

/

\__,_

|

_.__

/

\___\_

|

\_

/

\___

|

\__,

|

__

/|
|

___

/
17

:

56

:

57

CST [GreetingsModule] Greetings

17

:

56

:

58

CST message: [VM

-16-16-

ubuntu]

Greetings, KubeKey

!
17

:

56

:

58

CST message: [VM

-16-7-

ubuntu]

Greetings, KubeKey

!
17

:

56

:

58

CST message: [VM

-16-11-

ubuntu]

Greetings, KubeKey

!
17

:

56

:

58

CST success: [VM

-16-16-

ubuntu]

17

:

56

:

58

CST success: [VM

-16-7-

ubuntu]

17

:

56

:

58

CST success: [VM

-16-11-

ubuntu]

17

:

56

:

58

CST [NodePreCheckModule] A pre

-checkon

nodes

17

:

56

:

58

CST success: [VM

-16-16-

ubuntu]

17

:

56

:

58

CST success: [VM

-16-7-

ubuntu]

17

:

56

:

58

CST success: [VM

-16-11-

ubuntu]

17

:

56

:

58

CST [ConfirmModule] Display confirmation form

+-----------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
|

name

|

sudo

|

curl

|

openssl

|

ebtables

|

socat

|

ipset

|

ipvsadm

|

conntrack

|

chrony

|

docker

|

containerd

|

nfs client

|

ceph client

|

glusterfs client

|time|
+-----------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
|

VM

-16-7-

ubuntu

|

y

|

y

|

y

|

y

|

y

|

y

|

y

|

y

||||

y

|||

CST

17

:

56

:

58|
|

VM

-16-11-

ubuntu

|

y

|

y

|

y

|

y

|

y

|

y

|

y

|

y

||||

y

|||

CST

17

:

56

:

58|
|

VM

-16-16-

ubuntu

|

y

|

y

|

y

|

y

|

y

|

y

|

y

|

y

||||

y

|||

CST

17

:

56

:

58|
+-----------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+

This

is

a

simplecheckof

your environment.

Before installation, ensure that your machines meet

all

requirements specified at

https:

//github.com/kubesphere/kubekey#requirements-and-recommendations
Continue

this installation? [yes

/no

]: yes

17

:

57

:

06

CST success: [LocalHost]

17

:

57

:

06

CST [NodeBinariesModule] Download installation binaries

17

:

57

:

06

CST message: [localhost]

downloading amd64 kubeadm v1.

28.8

...

.

修改配置檔案
採用 3 個節點同時作為 control-plane、etcd 和 worker 節點。
編輯配置檔案 k8s-v1288.yaml，主要修改 kind: Cluster 小節的相關配置
修改 kind: Cluster 小節中 hosts 和 roleGroups 等資訊，修改說明如下。
  • hosts：指定節點的 IP、ssh 使用者、ssh 密碼、ssh 埠
  • roleGroups：指定 3 個 etcd、control-plane 節點，複用相同的機器作為 3 個 worker 節點
  • internalLoadbalancer：啟用內建的 HAProxy 負載均衡器
  • domain：可自定義域名
  • clusterName：可使用預設值 cluster.local
  • autoRenewCerts：該引數可以實現證書到期自動續期，預設為 true
  • containerManager：使用 containerd
部署完成需要大約 10-20 分鐘左右，會在終端上看到類似於下面的輸出。

daemonset.apps

/

calico

-

node created

deployment.apps

/

calico

-

kube

-

controllers created

18

:

12

:

37

CST skipped: [vm

-16-16-

ubuntu]

18

:

12

:

37

CST skipped: [vm

-16-11-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

37

CST [ConfigureKubernetesModule] Configure kubernetes

18

:

12

:

37

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

37

CST skipped: [vm

-16-11-

ubuntu]

18

:

12

:

37

CST skipped: [vm

-16-16-

ubuntu]

18

:

12

:

37

CST [ChownModule] Chown

user

$HOME

/

.kube dir

18

:

12

:

37

CST success: [vm

-16-16-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-11-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

37

CST [AutoRenewCertsModule] Generate k8s certs renew script

18

:

12

:

37

CST success: [vm

-16-16-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-11-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

37

CST [AutoRenewCertsModule] Generate k8s certs renew service

18

:

12

:

37

CST success: [vm

-16-16-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

37

CST success: [vm

-16-11-

ubuntu]

18

:

12

:

37

CST [AutoRenewCertsModule] Generate k8s certs renew timer

18

:

12

:

38

CST success: [vm

-16-16-

ubuntu]

18

:

12

:

38

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

38

CST success: [vm

-16-11-

ubuntu]

18

:

12

:

38

CST [AutoRenewCertsModule]

Enable

k8s certs renew service

18

:

12

:

38

CST success: [vm

-16-16-

ubuntu]

18

:

12

:

38

CST success: [vm

-16-11-

ubuntu]

18

:

12

:

38

CST success: [vm

-16-7-

ubuntu]

18

:

12

:

38

CST [SaveKubeConfigModule]

Save

kube config

as

a configmap

18

:

12

:

38

CST success: [LocalHost]

18

:

12

:

38

CST [AddonsModule] Install addons

18

:

12

:

38

CST success: [LocalHost]

18

:

12

:

38

CST Pipeline[CreateClusterPipeline]

execute

successfully

Installation

is

complete.

Please

check

the result

using

the command:

kubectl get pod

-

A

.

3. 驗證 K8s 叢集
3.1 驗證叢集狀態
  • 檢視叢集節點資訊

root

@VM-16-7-

ubuntu:

~# kubectl get nodes -owide

NAME

STATUS

ROLES AGE VERSION INTERNAL

-

IP EXTERNAL

-

IP OS

-

IMAGE KERNEL

-

VERSION CONTAINER

-

RUNTIME

vm

-16-11-

ubuntu Ready control

-

plane,worker

9

m46s v1.

28.8172.19.16.11<

none

>

Ubuntu

20.04

LTS

5.4.0-174-

generic containerd:

//1.7.13

vm

-16-16-

ubuntu Ready control

-

plane,worker

9

m43s v1.

28.8172.19.16.16<

none

>

Ubuntu

20.04

LTS

5.4.0-174-

generic containerd:

//1.7.13

vm

-16-7-

ubuntu Ready control

-

plane,worker

10

m v1.

28.8172.19.16.7<

none

>

Ubuntu

20.04

LTS

5.4.0-174-

generic containerd:

//1.7.13

4. 部署測試資源

root

@VM-16-7-

ubuntu:

~# kubectl create deployment nginx --image=nginx:alpine --replicas=2

deployment.apps

/

nginx created

root

@VM-16-7-

ubuntu:

~# kubectl create service nodeport nginx --tcp=80:80

service

/

nginx created

root

@VM-16-7-

ubuntu:

~# kubectl get deployment -o wide

NAME READY UP

-TO-DATE

AVAILABLE AGE CONTAINERS IMAGES SELECTOR

nginx

2/22221

s nginx nginx:alpine app

=

nginx

root

@VM-16-7-

ubuntu:

~# kubectl get pods -o wide

NAME READY

STATUS

RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES

nginx

-

b4ccb96c6

-

q5c52

1/1

Running

021

s

10.233.123.1

vm

-16-7-

ubuntu

<

none

><

none

>

nginx

-

b4ccb96c6

-

wgjh4

1/1

Running

021

s

10.233.96.1

vm

-16-16-

ubuntu

<

none

><

none

>

5.驗證服務
  • 驗證直接訪問 Pod

root

@VM-16-7-

ubuntu:

~# curl -I http://10.233.96.1

HTTP

/1.1200

OK

Server: nginx

/1.25.5
Date

: Tue,

07

May

202410

:

24

:

00

GMT

Content

-Type

:

text/

html

Content

-

Length:

615
Last-

Modified: Tue,

16

Apr

202415

:

47

:

06

GMT

Connection: keep

-

alive

ETag:

"661e9d7a-267"

Accept

-

Ranges: bytes

root

@VM-16-7-

ubuntu:

~# curl -I http://10.233.123.1

HTTP

/1.1200

OK

Server: nginx

/1.25.5
Date

: Tue,

07

May

202410

:

24

:

10

GMT

Content

-Type

:

text/

html

Content

-

Length:

615
Last-

Modified: Tue,

16

Apr

202415

:

47

:

06

GMT

Connection: keep

-

alive

ETag:

"661e9d7a-267"

Accept

-

Ranges: bytes

.

  • 驗證訪問 Nodeport

root

@VM-16-7-

ubuntu:

~# curl http://172.19.16.7:31377
<!

DOCTYPE html

>
<

html

>
<

head

>
<

title

>

Welcome

to

nginx

!</

title

>
<

style

>

html { color

-

scheme: light dark; }

body { width:

35

em; margin:

0

auto;

font

-

family: Tahoma, Verdana, Arial, sans

-

serif; }

</

style

>
</

head

>
<

body

>
<

h1

>

Welcome

to

nginx

!</

h1

>
<

p

>If

you see this page, the nginx web server

is

successfully installed

and

working. Further configuration

is

required.

</

p

>
<

p

>For

online documentation

and

support please refer

to
<

a href

="http://nginx.org/">

nginx.org

</

a

>

.

<

br

/>

Commercial support

is

available at

<

a href

="http://nginx.com/">

nginx.com

</

a

>

.

</

p

>
<

p

><

em

>

Thank you

forusing

nginx.

</

em

></

p

>
</

body

>
</html>

連結：https://yinwu.blog.csdn.net/article/details/138541109?spm=1001.2014.3001.5502
（版權歸原作者所有，侵刪）


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