20. 部署dashboard
1. 创建dashboard目录¶
mkdir -p /k8s/dashboard
cd /k8s/dashboard
2. 下载dashboard的yaml文件¶
wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.2.0/aio/deploy/recommended.yaml
3. 查看yaml文件内容¶
[root@k8s-master dashboard]# cat recommended.yaml
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: Namespace
metadata:
name: kubernetes-dashboard
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
type: NodePort
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kubernetes-dashboard
type: Opaque
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-csrf
namespace: kubernetes-dashboard
type: Opaque
data:
csrf: ""
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-key-holder
namespace: kubernetes-dashboard
type: Opaque
---
kind: ConfigMap
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-settings
namespace: kubernetes-dashboard
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
rules:
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]
resources: ["secrets"]
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
verbs: ["get", "update", "delete"]
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]
resources: ["configmaps"]
resourceNames: ["kubernetes-dashboard-settings"]
verbs: ["get", "update"]
# Allow Dashboard to get metrics.
- apiGroups: [""]
resources: ["services"]
resourceNames: ["heapster", "dashboard-metrics-scraper"]
verbs: ["proxy"]
- apiGroups: [""]
resources: ["services/proxy"]
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
verbs: ["get"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
rules:
# Allow Metrics Scraper to get metrics from the Metrics server
- apiGroups: ["metrics.k8s.io"]
resources: ["pods", "nodes"]
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
image: kubernetesui/dashboard:v2.2.0
imagePullPolicy: Always
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
- --namespace=kubernetes-dashboard
# Uncomment the following line to manually specify Kubernetes API server Host
# If not specified, Dashboard will attempt to auto discover the API server and connect
# to it. Uncomment only if the default does not work.
# - --apiserver-host=http://my-address:port
volumeMounts:
- name: kubernetes-dashboard-certs
mountPath: /certs
# Create on-disk volume to store exec logs
- mountPath: /tmp
name: tmp-volume
livenessProbe:
httpGet:
scheme: HTTPS
path: /
port: 8443
initialDelaySeconds: 30
timeoutSeconds: 30
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
volumes:
- name: kubernetes-dashboard-certs
secret:
secretName: kubernetes-dashboard-certs
- name: tmp-volume
emptyDir: {}
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
ports:
- port: 8000
targetPort: 8000
selector:
k8s-app: dashboard-metrics-scraper
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: dashboard-metrics-scraper
template:
metadata:
labels:
k8s-app: dashboard-metrics-scraper
annotations:
seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
spec:
containers:
- name: dashboard-metrics-scraper
image: kubernetesui/metrics-scraper:v1.0.6
ports:
- containerPort: 8000
protocol: TCP
livenessProbe:
httpGet:
scheme: HTTP
path: /
port: 8000
initialDelaySeconds: 30
timeoutSeconds: 30
volumeMounts:
- mountPath: /tmp
name: tmp-volume
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
volumes:
- name: tmp-volume
emptyDir: {}
4. 编辑yaml文件¶
vim recommended.yaml
# 修改Service为NodePort类型，文件的45行上下（在44行后面添加一行！）
......
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
type: NodePort # 加上type=NodePort变成NodePort类型的服务
......
5. 创建dashboard资源¶
kubectl apply -f recommended.yaml
root@k8s-master:/k8s/dashboard# kubectl apply -f recommended.yaml
namespace/kubernetes-dashboard created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scraper created
6. 查看服务访问端口¶
kubectl -n kubernetes-dashboard get svc
root@k8s-master:/k8s/dashboard# kubectl -n kubernetes-dashboard get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
dashboard-metrics-scraper ClusterIP 10.106.52.94 <none> 8000/TCP 11s
kubernetes-dashboard NodePort 10.108.125.170 <none> 443:30736/TCP 11s
7. 浏览器访问¶
#防火墙开端口30736
# 81.70.4.171:30736
# 发现需要https！
7.1 安装https证书¶
#1.
openssl req -x509 -nodes -days 2920 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=chupeng.cloud/O=ingress-nginx"
#2.
kubectl -n kubernetes-dashboard create secret tls tls-dashboard --key tls.key --cert tls.crt
root@k8s-master:/k8s/dashboard# openssl req -x509 -nodes -days 2920 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=chupeng.cloud/O=ingress-nginx"
Generating a RSA private key
............................................+++++
.....................................+++++
writing new private key to 'tls.key'
-----
root@k8s-master:/k8s/dashboard#
root@k8s-master:/k8s/dashboard# ls
recommended.yaml tls.crt tls.key
root@k8s-master:/k8s/dashboard#
root@k8s-master:/k8s/dashboard# kubectl -n kubernetes-dashboard create secret tls tls-dashboard --key tls.key --cert tls.crt
secret/tls-dashboard created
root@k8s-master:/k8s/dashboard#
root@k8s-master:/k8s/dashboard# kubectl -n kubernetes-dashboard get secret
NAME TYPE DATA AGE
default-token-ttq2c kubernetes.io/service-account-token 3 5m50s
kubernetes-dashboard-certs Opaque 0 5m50s
kubernetes-dashboard-csrf Opaque 1 5m50s
kubernetes-dashboard-key-holder Opaque 2 5m50s
kubernetes-dashboard-token-mklj2 kubernetes.io/service-account-token 3 5m50s
tls-dashboard kubernetes.io/tls 2 15s
7.2 再次访问¶
# 前面加上https！！以下2种方法都能访问
# https://chupeng.cloud:30736
# https://81.70.4.171:30736
结论：需要token或者kubeconfig文件才能访问！¶
8. 获取token¶
8.1 创建serviceaccount的yaml文件¶
vim dashboard-admin.conf
#############################################################
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
name: admin
annotations:
rbac.authorization.kubernetes.io/autoupdate: "true"
roleRef:
kind: ClusterRole
name: cluster-admin
apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
name: admin
namespace: kubernetes-dashboard
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: admin
namespace: kubernetes-dashboard
8.2 生成serviceaccount资源¶
kubectl apply -f dashboard-admin.conf
8.3 查看secret¶
#1.查看token
kubectl -n kubernetes-dashboard get secret |grep admin-token
8.4 从secret中拿到token¶
#2.使用该命令拿到token，然后粘贴到浏览器
kubectl -n kubernetes-dashboard get secret admin-token-fqdpf -o jsonpath={.data.token}|base64 -d
root@k8s-master:/k8s/dashboard# kubectl -n kubernetes-dashboard get secret |grep admin-token
admin-token-5llvj kubernetes.io/service-account-token 3 34s
root@k8s-master:/k8s/dashboard#
root@k8s-master:/k8s/dashboard# kubectl -n kubernetes-dashboard get secret admin-token-5llvj -o jsonpath={.data.token}|base64 -d
eyJhbGciOiJSUzI1NiIsImtpZCI6Ind6TEc0SVNCRXpaLWFrWFBhN19Nakd0dE0xdTBjYVNrWkhEQTl6VFAtajgifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi10b2tlbi01bGx2aiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJhZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6ImRhY2NiZDNkLThmNzQtNDljZC05NTJhLTEwZTgxZDFhZTQ0YyIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDphZG1pbiJ9.TJMGlSUmY_S9W0ITnLO6cRa49LhMbDIapkQ1SLeKeQqaw8z0EVdTBqHyhzqCmXdhdpgn2b6Jg2_3nnvoDY8JjGUg3ETsjj1OjFTFJatdY_w-0cy9mWV6ucUvAS_qviEWp0Lim2eQiKwFm_BLxNBGq94yU43iB2lb2WqNpio6DQGm9fmWPDIY1iSkOGl_hfR5MZyC5JwqanFf33sJ74SPKs_JSTbUsjYzjKfywUJzWYh9EypvHtwYBFAj8Nn43mGL2i91oDoaPra5ydIrQpuGOD-_leXFT1HMCco3AzCIMlzRmSMnudHf_ctPzs7_EDCqIxPpprR_yD56RleazE9NvA
8.5 将token复制到浏览器¶
eyJhbGciOiJSUzI1NiIsImtpZCI6Ind6TEc0SVNCRXpaLWFrWFBhN19Nakd0dE0xdTBjYVNrWkhEQTl6VFAtajgifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi10b2tlbi01bGx2aiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJhZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6ImRhY2NiZDNkLThmNzQtNDljZC05NTJhLTEwZTgxZDFhZTQ0YyIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDphZG1pbiJ9.TJMGlSUmY_S9W0ITnLO6cRa49LhMbDIapkQ1SLeKeQqaw8z0EVdTBqHyhzqCmXdhdpgn2b6Jg2_3nnvoDY8JjGUg3ETsjj1OjFTFJatdY_w-0cy9mWV6ucUvAS_qviEWp0Lim2eQiKwFm_BLxNBGq94yU43iB2lb2WqNpio6DQGm9fmWPDIY1iSkOGl_hfR5MZyC5JwqanFf33sJ74SPKs_JSTbUsjYzjKfywUJzWYh9EypvHtwYBFAj8Nn43mGL2i91oDoaPra5ydIrQpuGOD-_leXFT1HMCco3AzCIMlzRmSMnudHf_ctPzs7_EDCqIxPpprR_yD56RleazE9NvA
#浏览器输入token后，进入dashboard界面如下！
最后更新:
2022-02-22 04:55:01