Kubernetes安装dashboard

官网更新了新的2.*版本,废弃了Heapster。也试着安装了一下感受还不错,就是执行kubectl proxy的时候要改为kubectl proxy --address='node-ip' --accept-hosts='^*$',其余机器就能够访问了,不然只有安装dashboadr的机器才能访问界面。node

 

安装方法参考的文档见本文末尾,我的感受一步一步安装一下仍是挺有意思的~~git

1.安装dashboard:github

 

dashboad的yaml文件贴在这里~express

# 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.

# ------------------- Dashboard Secret ------------------- #

apiVersion: v1
kind: Secret
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard-certs
  namespace: kube-system
type: Opaque

---
# ------------------- Dashboard Service Account ------------------- #

apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system

---
# ------------------- Dashboard Role & Role Binding ------------------- #

kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: kubernetes-dashboard-minimal
  namespace: kube-system
rules:
  # Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.
- apiGroups: [""]
  resources: ["secrets"]
  verbs: ["create"]
  # Allow Dashboard to create 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]
  resources: ["configmaps"]
  verbs: ["create"]
  # Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]
  resources: ["secrets"]
  resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]
  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 from heapster.
- apiGroups: [""]
  resources: ["services"]
  resourceNames: ["heapster"]
  verbs: ["proxy"]
- apiGroups: [""]
  resources: ["services/proxy"]
  resourceNames: ["heapster", "http:heapster:", "https:heapster:"]
  verbs: ["get"]

---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: kubernetes-dashboard-minimal
  namespace: kube-system
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: kubernetes-dashboard-minimal
subjects:
- kind: ServiceAccount
  name: kubernetes-dashboard
  namespace: kube-system

---
# ------------------- Dashboard Deployment ------------------- #

kind: Deployment
apiVersion: apps/v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: kubernetes-dashboard
  template:
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
    spec:
      containers:
      - name: kubernetes-dashboard
        image: hati/kubernetes-dashboard-amd64:v1.10.1
        ports:
        - containerPort: 8443
          protocol: TCP
        args:
          - --auto-generate-certificates
          # 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
      volumes:
      - name: kubernetes-dashboard-certs
        secret:
          secretName: kubernetes-dashboard-certs
      - name: tmp-volume
        emptyDir: {}
      serviceAccountName: kubernetes-dashboard
      # Comment the following tolerations if Dashboard must not be deployed on master
      tolerations:
      - key: node-role.kubernetes.io/master
        effect: NoSchedule

---
# ------------------- Dashboard Service ------------------- #

kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  ports:
    - port: 443
      targetPort: 8443
  selector:
    k8s-app: kubernetes-dashboard

  

wget -O kubernetes-dashboard.yaml https://raw.githubusercontent.com/kubernetes/dashboard/master/aio/deploy/recommended/kubernetes-dashboard.yaml
忽然发现上面连接失效了……
sed -i "s/k8s\.gcr\.io/hati/g" kubernetes-dashboard.yaml
kubectl apply -f kubernetes-dashboard.yaml
kubectl get pods -n kube-system

2.建立服务帐户,绑定集群角色:apache

service_account.yamlapi

1 apiVersion: v1
2  kind: ServiceAccount
3  metadata:
4    name: admin-user
5    namespace: kube-system

clusterrolebinding.yaml浏览器

 1 apiVersion: rbac.authorization.k8s.io/v1
 2  kind: ClusterRoleBinding
 3  metadata:
 4    name: admin-user
 5  roleRef:
 6    apiGroup: rbac.authorization.k8s.io
 7    kind: ClusterRole
 8    name: cluster-admin
 9  subjects:
10  - kind: ServiceAccount
11    name: admin-user
12    namespace: kube-system
kubectl apply -f service_account.yaml
kubectl apply -f clusterrolebinding.yaml #Bearer Token kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep admin-user | awk '{print $1}')

备注:copy生成的token,用于登陆dashboad。bash

3.生成用户证书app

过程当中会要求输入导出证书时用到的密钥,请务必记住。less

grep 'client-certificate-data' ~/.kube/config | head -n 1 | awk '{print $2}' | base64 -d >> kubecfg.crt
grep 'client-key-data' ~/.kube/config | head -n 1 | awk '{print $2}' | base64 -d >> kubecfg.key
openssl pkcs12 -export -clcerts -inkey kubecfg.key -in kubecfg.crt -out kubecfg.p12 -name "kubernetes-client"
echo "Please install the kubecfg.p12 certificate in your browser, and then restart browser."

4.安装图形化插件heapster

wget -O grafana.yaml https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/grafana.yaml
wget -O heapster.yaml https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/heapster.yaml
wget -O influxdb.yaml https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/influxdb.yaml
wget -O heapster-rbac.yaml https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/rbac/heapster-rbac.yaml
 ​
# Set port ype as "NodePort" for test environment sed -i "s/\# type: NodePort/type: NodePort/g" grafana.yaml # Set only use API server proxy to access grafana sed -i "s/value: \//\#value: \//g" grafana.yaml sed -i "s/\# \#value: \/api/value: \/api/g" grafana.yaml sed -i "s/name: ca-certificates/name: ca-certs/g" grafana.yaml sed -i "s/heapster-grafana-amd64:v5\.0\.4/heapster-grafana-amd:v4\.4\.3/g" grafana.yaml sed -i "s/https:\/\/kubernetes\.default/https:\/\/kubernetes\.default:443?useServiceAccount=true\&kubeletHttps=true\&kubeletPort=10250\&insecure=true/g" heapster.yaml sed -i "s/name: system:heapster/name: cluster-admin/g" heapster-rbac.yaml ​ #Replace k8s.gcr.io image with hati sed -i "s/k8s\.gcr\.io/hati/g" grafana.yaml sed -i "s/k8s\.gcr\.io/hati/g" heapster.yaml sed -i "s/k8s\.gcr\.io/hati/g" influxdb.yaml
kubectl apply -f grafana.yaml
kubectl apply -f heapster.yaml
kubectl apply -f influxdb.yaml
kubectl apply -f heapster-rbac.yaml
kubectl get pods -n kube-system
kubectl cluster-info

 将生成的用户证书kubecfg.p12导入到浏览器中(以Chrome为例,设置->高级->管理证书->导入),而后访问地址(ip和port作相应的更改):

 https://<master-ip>:<apiserver-port>/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

在令牌处输入保存的token登陆dashboard:

 

 

 

 参考文档:

https://blog.csdn.net/nklinsirui/article/details/80806131