k8s kubernetes-dashboard UI页面部署

 

 

 

 

metrics-server地址
https://github.com/kubernetes-incubator/metrics-server

UI页面地址
https://github.com/kubernetes/dashboard
yaml文件(打开后复制粘贴)
https://github.com/kubernetes/dashboard/blob/master/aio/deploy/recommended.yaml

 

从阿里容器镜像仓库查找相关镜像并下载
[root@kubernetes ~]# docker pull registry.cn-shanghai.aliyuncs.com/hanchenglei/metrics-server-amd64:v0.3.6
[root@kubernetes ~]# docker images
REPOSITORY                                                           TAG                 IMAGE ID            CREATED             SIZE
registry.cn-shanghai.aliyuncs.com/hanchenglei/metrics-server-amd64   v0.3.6              9dd718864ce6        6 months ago        39.9MB

将镜像标签修改为yaml文件里的镜像标签
[root@kubernetes ~]# docker tag registry.cn-shanghai.aliyuncs.com/hanchenglei/metrics-server-amd64:v0.3.6 k8s.gcr.io/metrics-server-amd64:v0.3.6
[root@kubernetes ~]# docker images
REPOSITORY                                                           TAG                 IMAGE ID            CREATED             SIZE
k8s.gcr.io/metrics-server-amd64                                      v0.3.6              9dd718864ce6        6 months ago        39.9MB
registry.cn-shanghai.aliyuncs.com/hanchenglei/metrics-server-amd64   v0.3.6              9dd718864ce6        6 months ago        39.9MB

镜像打包后加载到其他主机
[root@k8s data]# docker load -i metrics-server-amd64.tar.gz 
932da5156413: Loading layer [==================================================>]  3.062MB/3.062MB
7bf3709d22bb: Loading layer [==================================================>]  38.13MB/38.13MB
Loaded image: k8s.gcr.io/metrics-server-amd64:v0.3.6
[root@k8s data]# 
[root@k8s data]# docker images |grep metrics
k8s.gcr.io/metrics-server-amd64   v0.3.6              9dd718864ce6        6 months ago        39.9MB

[root@k8s-node1 data]# docker load -i metrics-server-amd64.tar.gz
932da5156413: Loading layer [==================================================>]  3.062MB/3.062MB
7bf3709d22bb: Loading layer [==================================================>]  38.13MB/38.13MB
Loaded image: k8s.gcr.io/metrics-server-amd64:v0.3.6

[root@k8s-node2 data]# docker load -i metrics-server-amd64.tar.gz
932da5156413: Loading layer [==================================================>]  3.062MB/3.062MB
7bf3709d22bb: Loading layer [==================================================>]  38.13MB/38.13MB
Loaded image: k8s.gcr.io/metrics-server-amd64:v0.3.6

[root@k8s k8s]# mkdir /data/k8s/WEB-UI
[root@k8s k8s]# ls
busybox.yaml  coredns  mysql  WEB-UI  zabbix
[root@k8s k8s]# cd WEB-UI/

文件下载地址
https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.3.6/components.yaml
下载配置文件中添加了配置
        command:
          - /metrics-server
          - --kubelet-preferred-address-types=InternalIP
          - --kubelet-insecure-tls

[root@k8s WEB-UI]# cat components.yaml 
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: system:aggregated-metrics-reader
  labels:
    rbac.authorization.k8s.io/aggregate-to-view: "true"
    rbac.authorization.k8s.io/aggregate-to-edit: "true"
    rbac.authorization.k8s.io/aggregate-to-admin: "true"
rules:
- apiGroups: ["metrics.k8s.io"]
  resources: ["pods", "nodes"]
  verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: metrics-server:system:auth-delegator
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:auth-delegator
subjects:
- kind: ServiceAccount
  name: metrics-server
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: metrics-server-auth-reader
  namespace: kube-system
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: extension-apiserver-authentication-reader
subjects:
- kind: ServiceAccount
  name: metrics-server
  namespace: kube-system
---
apiVersion: apiregistration.k8s.io/v1beta1
kind: APIService
metadata:
  name: v1beta1.metrics.k8s.io
spec:
  service:
    name: metrics-server
    namespace: kube-system
  group: metrics.k8s.io
  version: v1beta1
  insecureSkipTLSVerify: true
  groupPriorityMinimum: 100
  versionPriority: 100
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: metrics-server
  namespace: kube-system
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: metrics-server
  namespace: kube-system
  labels:
    k8s-app: metrics-server
spec:
  selector:
    matchLabels:
      k8s-app: metrics-server
  template:
    metadata:
      name: metrics-server
      labels:
        k8s-app: metrics-server
    spec:
      serviceAccountName: metrics-server
      volumes:
      # mount in tmp so we can safely use from-scratch images and/or read-only containers
      - name: tmp-dir
        emptyDir: {}
      containers:
      - name: metrics-server
        image: k8s.gcr.io/metrics-server-amd64:v0.3.6
        imagePullPolicy: IfNotPresent
        args:
          - --cert-dir=/tmp
          - --secure-port=4443
        command:
          - /metrics-server
          - --kubelet-preferred-address-types=InternalIP
          - --kubelet-insecure-tls
        ports:
        - name: main-port
          containerPort: 4443
          protocol: TCP
        securityContext:
          readOnlyRootFilesystem: true
          runAsNonRoot: true
          runAsUser: 1000
        volumeMounts:
        - name: tmp-dir
          mountPath: /tmp
      nodeSelector:
        kubernetes.io/os: linux
        kubernetes.io/arch: "amd64"
---
apiVersion: v1
kind: Service
metadata:
  name: metrics-server
  namespace: kube-system
  labels:
    kubernetes.io/name: "Metrics-server"
    kubernetes.io/cluster-service: "true"
spec:
  selector:
    k8s-app: metrics-server
  ports:
  - port: 443
    protocol: TCP
    targetPort: main-port
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: system:metrics-server
rules:
- apiGroups:
  - ""
  resources:
  - pods
  - nodes
  - nodes/stats
  - namespaces
  - configmaps
  verbs:
  - get
  - list
  - watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: system:metrics-server
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:metrics-server
subjects:
- kind: ServiceAccount
  name: metrics-server
  namespace: kube-system

[root@k8s WEB-UI]# kubectl create -f components.yaml 
clusterrole.rbac.authorization.k8s.io/system:aggregated-metrics-reader created
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator created
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader created
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io created
serviceaccount/metrics-server created
deployment.apps/metrics-server created
service/metrics-server created
clusterrole.rbac.authorization.k8s.io/system:metrics-server created
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server created

[root@k8s WEB-UI]# kubectl get pods -n kube-system
NAME                             READY   STATUS    RESTARTS   AGE
coredns-68567cdb47-mtzzd         1/1     Running   4          4d20h
coredns-68567cdb47-nnzb7         1/1     Running   4          4d20h
metrics-server-c76bb48c7-frtnn   1/1     Running   2          10h

[root@k8s WEB-UI]# kubectl top node
NAME             CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
192.168.73.100   197m         9%     904Mi           47%       
192.168.73.101   111m         5%     437Mi           23%       
192.168.73.102   78m          3%     776Mi           41%       

[root@k8s WEB-UI]# kubectl top pod --all-namespaces
NAMESPACE     NAME                             CPU(cores)   MEMORY(bytes)   
default       busybox                          0m           1Mi             
default       mysql-f74967858-9nzqw            10m          361Mi           
default       zabbix-server-c74989dc7-b24z6    4m           39Mi            
default       zabbix-web-856989975-drvbw       1m           40Mi            
default       zabbix-web-856989975-txnf9       1m           40Mi            
kube-system   coredns-68567cdb47-mtzzd         7m           12Mi            
kube-system   coredns-68567cdb47-nnzb7         7m           12Mi            
kube-system   metrics-server-c76bb48c7-frtnn   1m           11Mi 

UI页面创建
更改配置文件
image: kubernetesui/dashboard:v2.0.0
imagePullPolicy: IfNotPresent
image: kubernetesui/metrics-scraper:v1.0.3
更改了service
kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  type: NodePort
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30443
  selector:
    k8s-app: kubernetes-dashboard
    

[root@k8s WEB-UI]# 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:
  type: NodePort
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30443
  selector:
    k8s-app: kubernetes-dashboard

---

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:v2.0.0
          imagePullPolicy: IfNotPresent
          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:v1.0.3
          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: {}

[root@k8s WEB-UI]# kubectl get ns
NAME              STATUS   AGE
default           Active   6d18h
kube-node-lease   Active   6d18h
kube-public       Active   6d18h
kube-system       Active   6d18h

[root@k8s WEB-UI]# 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

[root@k8s WEB-UI]# kubectl get ns
NAME                   STATUS   AGE
default                Active   6d18h
kube-node-lease        Active   6d18h
kube-public            Active   6d18h
kube-system            Active   6d18h
kubernetes-dashboard   Active   10s

[root@k8s WEB-UI]# kubectl get pod -n kubernetes-dashboard
NAME                                        READY   STATUS    RESTARTS   AGE
dashboard-metrics-scraper-8cb694768-bk7lg   1/1     Running   0          11s
kubernetes-dashboard-7bf98886d5-6fnrq       1/1     Running   0          12s

[root@k8s WEB-UI]# kubectl proxy
Starting to serve on 127.0.0.1:8001

测试部署是否成功
[root@k8s WEB-UI]# curl http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

查看登录用户的tocken
[root@k8s WEB-UI]# kubectl -n kubernetes-dashboard describe secret $(kubectl -n kubernetes-dashboard get secret | grep kubernetes-dashboard | awk '{print $1}')
Name:         kubernetes-dashboard-certs
Namespace:    kubernetes-dashboard
Labels:       k8s-app=kubernetes-dashboard
Annotations:  

Type:  Opaque

Data
====

Name:         kubernetes-dashboard-csrf
Namespace:    kubernetes-dashboard
Labels:       k8s-app=kubernetes-dashboard
Annotations:  

Type:  Opaque

Data
====
csrf:  256 bytes

Name:         kubernetes-dashboard-key-holder
Namespace:    kubernetes-dashboard
Labels:      
Annotations:  

Type:  Opaque

Data
====
priv:  1679 bytes
pub:   459 bytes

Name:         kubernetes-dashboard-token-kq5vf
Namespace:    kubernetes-dashboard
Labels:      
Annotations:  kubernetes.io/service-account.name: kubernetes-dashboard
              kubernetes.io/service-account.uid: 4939b6f6-347b-4b80-a9d9-826c84eacd66

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1099 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IlNybzBGYzNoYklYWlJlM2NsU0VWNTY2TGZlM2E3a1RUYm5ObmJxLXFZMjAifQ.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.O86bb2WVkkm3b8xDOkeSyqKI45pJ0xjB618MiJjbCPVxs0CuWb1pvHb0MuGh3qnTd_wi4KIBNMFtgadFvGTQsTnTQJhXRU4yLgvayqAFwHJU9-kcanJaoa3aS1TrzL9r-sLDpWtMhTriA8d_GOMUDhwkkqJ2Mvi5FGIguW3QHlIOulMSaA5HQDbER0gFeLxsfE2bWr2wpx0MuUYoegiFqQw_lVmRMqkWHvsnX8zBWrnJLptCaNly1au88erk28VloiBmLOppm3YdNGZEhr_NUrYd_Hk2i3aYbsMwqKXmV3HVclFs1zCxJ-meRsFWcwTyxHPQmoNQLqmlPKut07KWfA

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