Kubernetes1.13.1 dashboard安装

一.准备kubernetes-dashboard-amd64:v1.10.0
#拉取镜像
docker pull mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.0

#重新打标签
docker tag mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.0 k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.0

#删除无用镜像
docker image rm mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.0

二.获取kubernetes-dashboard.yaml
wget https://zxytest.zhixueyun.com/installler/kubernetes-dashboard.yaml
kubectl create -f kubernetes-dashboard.yaml

kubernetes-dashboard.yaml的内容如下

# 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/v1beta2
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: mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.0
        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:
  type: NodePort
  ports:
    - port: 8443
      nodePort: 32323
      name: kubernetes-dashboard
  selector:
    k8s-app: kubernetes-dashboard

 

查看dashboard的POD是否正常启动，如果正常说明安装成功
[root@iZbp1at8fph52evh70atb0Z ~]# kubectl get pods --namespace=kube-system
NAME READY STATUS RESTARTS AGE
kubernetes-dashboard-7b9c7bc8c9-d9jnt 1/1 Running 0 52m

 

查看kubernetes dashboard的nodeport

3.kubernetes dashboard有个bug,当容器名称太长之后，下载按钮被挤掉不显示，属于样式bug

当容器名称比较短的时候，下载日志按钮可以显示

 

四.生成dashboard.kubeconfig文件

1.执行以下命令生成kubeconfig文件，注意红色字体部分根据具体环境修改

kubectl create sa dashboard-admin -n kube-system
kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin
ADMIN_SECRET=$(kubectl get secrets -n kube-system | grep dashboard-admin | awk '{print $1}')
DASHBOARD_LOGIN_TOKEN=$(kubectl describe secret -n kube-system ${ADMIN_SECRET} | grep -E '^token' | awk '{print $2}')
echo ${DASHBOARD_LOGIN_TOKEN}

export KUBE_APISERVER=https://10.47.92.186:6443

kubectl config set-cluster kubernetes \
  --certificate-authority=/etc/kubernetes/cert/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=dashboard.kubeconfig

# 设置客户端认证参数，使用上面创建的 Token
kubectl config set-credentials dashboard_user \
  --token=${DASHBOARD_LOGIN_TOKEN} \
  --kubeconfig=dashboard.kubeconfig

# 设置上下文参数
kubectl config set-context default \
  --cluster=kubernetes \
  --user=dashboard_user \
  --kubeconfig=dashboard.kubeconfig

# 设置默认上下文
kubectl config use-context default --kubeconfig=dashboard.kubeconfig

 

2.登陆的时候不用输入一长串token,直接选择刚才生成的kubeconfig文件即可

 

五.上面那个token的权限太大了，为了生成查询权限的账号，执行以下步骤

1.rbac-zxy.yaml的内容如下

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: role-zxy
rules:
- apiGroups: [""]
  resources: ["*"]
  verbs: ["get","watch","list" ]
- apiGroups: ["storage.k8s.io"]
  resources: ["*"]
  verbs: ["get","watch","list" ]
- apiGroups: ["rbac.authorization.k8s.io"]
  resources: ["*"]
  verbs: ["get","watch","list" ]
- apiGroups: ["batch"]
  resources: ["*"]
  verbs: ["get","watch","list" ]
- apiGroups: ["apps"]
  resources: ["*"]
  verbs: ["get","watch","list" ]
- apiGroups: ["extensions"]
  resources: ["*"]
  verbs: ["get","watch","list" ]
 
- apiGroups: [""]
  resources: [ "pods/exec"]
  verbs: ["create"]
 
 
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: role-bind-zxy
subjects:
- kind: ServiceAccount
  name: zxy
  namespace: kube-system
roleRef:
  kind: ClusterRole
  name: role-zxy
  apiGroup: rbac.authorization.k8s.io


2.配置权限，只有"get","watch","list"等查询权限 
kubectl create sa zxy -n kube-system
kubectl create -f rbac-zxy.yaml 
kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep zxy | awk '{print $1}')

[root@iZbp13ke7onfhiq7ycl4m0Z ~]# kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep zxy | awk '{print $1}')
Name:         zxy-token-xwrqk
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: zxy
              kubernetes.io/service-account.uid: f44468f7-147d-11e9-8505-00163e0d735c
Type:  kubernetes.io/service-account-token
Data
====
ca.crt:     1367 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJ6eHktdG9rZW4teHdycWsiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC5uYW1lIjoienh5Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQudWlkIjoiZjQ0NDY4ZjctMTQ3ZC0xMWU5LTg1MDUtMDAxNjNlMGQ3MzVjIiwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmUtc3lzdGVtOnp4eSJ9.kaGX8mNOJ0snLk7Q4wcBeMo0AjrV1k91AHUvJ0PRDOukx5aT2FH5xbd4CdRL0O7VgMEmEc4J3-u7Jr03yQNkDWCb9rMWOXZFw5qIz7hl98JhEWB-ouIdJMPVsVKEFKjpayBaCdBUMlbPKh31QSeWS7dvZdxDAkUeF0OiNFeh91D7FlKe0DDxUMX-aOsoSRr1x6PJv9LEm7Fm5HWJyrSlTh6P4N6dxZhAf1wMxZGTFwr3XE0NOGS8to_p53qJOIIoGs5klxZ-CaU38NVmsNA02BedXELU3_1PySt9eKVwGDDilKuwwSyTvGgoktcC6TwQ71o_TAGQ-vpFWuB8VnpOAg

 

3.删除权限执行以下命令

kubectl delete -f rbac-zxy.yaml
kubectl delete sa zxy -n kube-system

 

4.如果出现dashboard nodeport无法访问的时候，可以通过nodeName: k8s_master_ip绑定到master ip启动该服务

参考文档:http://blog.51cto.com/wangxiaoke/2311028?source=dra

http://blog.51cto.com/ylw6006/2113542

posted @ 2020-06-02 23:46  $world  阅读(425)  评论(0)  编辑  收藏  举报