Kubernetes---使用 Helm 安装部署 Dashboard 仪表盘

使用 Helm 安装部署 Dashboard 仪表盘

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一、安装Helm

1. 下载helm二进制包 官方下载地址https://github.com/helm/helm/releases

[root@master helm]# wget https://get.helm.sh/helm-v3.7.1-linux-amd64.tar.gz
--2022-09-15 14:23:54--  https://get.helm.sh/helm-v3.7.1-linux-amd64.tar.gz
Resolving get.helm.sh (get.helm.sh)... 152.199.39.108, 2606:2800:247:1cb7:261b:1f9c:2074:3c
Connecting to get.helm.sh (get.helm.sh)|152.199.39.108|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 13862382 (13M) [application/x-tar]
Saving to: ‘helm-v3.7.1-linux-amd64.tar.gz’

100%[=======================================================================================================================>] 13,862,382  1.45MB/s   in 8.6s

2022-09-15 14:24:09 (1.54 MB/s) - ‘helm-v3.7.1-linux-amd64.tar.gz’ saved [13862382/13862382]

[root@master helm]# ls
helm-v3.7.1-linux-amd64.tar.gz
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2. 解压二进制包

[root@master helm]# tar -xzvf helm-v3.7.1-linux-amd64.tar.gz
linux-amd64/
linux-amd64/helm
linux-amd64/LICENSE
linux-amd64/README.md
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3. 移动二进制文件到bin目录下

[root@master helm]# mv linux-amd64/helm /usr/local/bin/helm
[root@master helm]# ls
helm-v3.7.1-linux-amd64.tar.gz  linux-amd64
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4. 配置helm命令自动补全

[root@master helm]# yum install -y bash-completion
Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager

This system is not registered with an entitlement server. You can use subscription-manager to register.

Determining fastest mirrors
epel/x86_64/metalink                                                            | 7.3 kB  00:00:00
 * base: mirrors.huaweicloud.com
 * epel: mirror.01link.hk
 * extras: mirrors.aliyun.com
 * updates: mirrors.njupt.edu.cn
base                                                                            | 3.6 kB  00:00:00
docker-ce-stable                                                                | 3.5 kB  00:00:00
epel                                                                            | 4.7 kB  00:00:00
extras                                                                          | 2.9 kB  00:00:00
kubernetes                                                                      | 1.4 kB  00:00:00
updates                                                                         | 2.9 kB  00:00:00
(1/6): epel/x86_64/group_gz                                                     |  97 kB  00:00:06
(2/6): docker-ce-stable/7/x86_64/primary_db                                     |  82 kB  00:00:06
(3/6): epel/x86_64/primary_db                                                   | 7.0 MB  00:00:03
(4/6): extras/7/x86_64/primary_db                                               | 250 kB  00:00:06
(5/6): updates/7/x86_64/primary_db                                              |  17 MB  00:00:19
(6/6): epel/x86_64/updateinfo                                                   | 1.0 MB  00:00:53
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "y                                                                                 um-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don                                                                                 't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help).
--> Running transaction check
---> Package bash-completion.noarch 1:2.1-6.el7 will be updated
---> Package bash-completion.noarch 1:2.1-8.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================
 Package                       Arch                 Version                    Repository          Size
========================================================================================================
Updating:
 bash-completion               noarch               1:2.1-8.el7                base                87 k

Transaction Summary
========================================================================================================
Upgrade  1 Package

Total download size: 87 k
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
bash-completion-2.1-8.el7.noarch.rpm                                             |  87 kB  00:00:06
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : 1:bash-completion-2.1-8.el7.noarch                                                   1/2
  Cleanup    : 1:bash-completion-2.1-6.el7.noarch                                                   2/2
  Verifying  : 1:bash-completion-2.1-8.el7.noarch                                                   1/2
  Verifying  : 1:bash-completion-2.1-6.el7.noarch                                                   2/2

Updated:
  bash-completion.noarch 1:2.1-8.el7

Complete!
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[root@master helm]# echo "source <(helm completion bash)" >> ~/.bashrc
[root@master helm]# source /root/.bashrc
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二、安装部署Dashboard

1. 添加helm repo源

[root@master helm]# helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/
"kubernetes-dashboard" has been added to your repositories
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2. 安装Dashboard

[root@master helm]# helm install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard --namespace kubernetes-dashboard --create-namespace --set replicaCount=2 --set service.type=NodePort --set service.nodePort=30080 --set resources.limits.cpu=200m
NAME: kubernetes-dashboard
LAST DEPLOYED: Thu Sep 15 15:04:29 2022
NAMESPACE: kubernetes-dashboard
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
*********************************************************************************
*** PLEASE BE PATIENT: kubernetes-dashboard may take a few minutes to install ***
*********************************************************************************

Get the Kubernetes Dashboard URL by running:
  export NODE_PORT=$(kubectl get -n kubernetes-dashboard -o jsonpath="{.spec.ports[0].nodePort}" services kubernetes-dashboard)
  export NODE_IP=$(kubectl get nodes -o jsonpath="{.items[0].status.addresses[0].address}")
  echo https://$NODE_IP:$NODE_PORT/
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3. 查看Dashboard运行状态

[root@master helm]# kubectl -n kubernetes-dashboard get pods
NAME                                    READY   STATUS    RESTARTS   AGE
kubernetes-dashboard-68df56d58f-jvmvc   1/1     Running   0          19s
kubernetes-dashboard-68df56d58f-z2v7s   1/1     Running   0          19s

[root@master helm]# kubectl -n kubernetes-dashboard get svc
NAME                   TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE
kubernetes-dashboard   NodePort   10.104.192.250   <none>        443:30080/TCP   35s
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4. 创建dashboard-admin.yaml文件

Dashboard 支持 Kubeconfig 和 Token 两种认证方式，这里选择Token认证方式登录，默认serviceaccount只有读权限，这里创建admin用户。

yaml文件内容如下：

[root@master helm]# cat dashboard-admin.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
  - kind: ServiceAccount
    name: kubernetes-dashboard
    namespace: kubernetes-dashboard
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5. 创建登录用户

[root@master helm]# kubectl apply -f dashboard-admin.yaml
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
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6. 查看admin-user账户的token

[root@master helm]# kubectl -n kubernetes-dashboard get secret $(kubectl -n kubernetes-dashboard get sa/kubernetes-dashboard -o jsonpath="{.secrets[0].name}") -o go-template="{{.data.token | base64decode}}"
eyJhbGciOiJSUzI1NiIsImtpZCI6IjdTRmd0QUE1Q2lkMEF4Ujh4d3dFTVpKLXlzRVpwTXpTNm5aRTBxS1VsWE0ifQ.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.GekfgCeRO5U3n35E6uaNvJksZooH3vVvYLscrSr4OyHid0_1pY-W9fJx4QZZ7c1WAblbTRkEl87gqoJFURwUwQaKWF_nlZhIY4kh2W0emAnjUCPkPYw0Z_8mzELG1t5j3TZXHwWb45IR8tHIe8HOzJS1asmS_d0GDzDevyv1QE2gdLyrj2aLvTubxekbzbGLKeq-6SHqgglwGT3l4hUyrVT0ABox5hde4yg62UUbJ8TvVl8YfDkFWZhSl_0d77F23-8janyRbZVYg3IP_3jrifSTS3FkatV5CRfN8rtMzyEJCLxXb6yzMTKCEZdONQnTgp8fuN_b-8-7snsTAQWzKA
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注意：此处token为我自己的token，当使用浏览器进行访问时，需要使用自己的token登录，不要复制我的token进行登录。

7. 登陆Dashboard

浏览器输入：任意节点IP+Node端口号

粘贴token，登录。

8. 删除Dashboard

[root@master helm]# helm -n kubernetes-dashboard uninstall kubernetes-dashboard
release "kubernetes-dashboard" uninstalled
[root@master helm]# kubectl -n kubernetes-dashboard get pods
No resources found in kubernetes-dashboard namespace.
[root@master helm]# kubectl -n kubernetes-dashboard get svc
No resources found in kubernetes-dashboard namespace.
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删除完成。

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