k8s部署dashboard(半转)
2020-01-03 本文已影响0人
带着小猪闯天下
1，下载yaml文件
wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta5/aio/deploy/recommended.yaml
贴一个完整的原始文件
[root@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:
type: NodePort
ports:
- port: 443
targetPort: 8443
nodePort: 30001
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-beta5
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:
"beta.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:v1.0.1
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:
"beta.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: {}
2，修改文件
（解决证书问题）
##注释掉文件中以下内容
#apiVersion: v1
#kind: Secret
#metadata:
# labels:
# k8s-app: kubernetes-dashboard
# name: kubernetes-dashboard-certs
# namespace: kubernetes-dashboard
#type: Opaque
#
#---
image.png
（暴露端口相关）
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
type: NodePort ### 设置为NodePort
ports:
- port: 443
targetPort: 8443
nodePort: 30001 ### 设置30001端口
selector:
k8s-app: kubernetes-dashboard
两文件对比
[root@master dashboard]# diff recommended.yaml recommended.yaml.bak
40d39
< type: NodePort
44d42
< nodePort: 30001
50,59c48,57
< #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-certs
> namespace: kubernetes-dashboard
> type: Opaque
>
> ---
3，配置证书
# 创建目录使用证书
mkdir key && cd key
# 查看是否存在namespace为kubernetes-dashboard
kubectl get namespaces
# 不存在namespace为创建kubernetes-dashboard创建namespace
kubectl create namespace kubernetes-dashboard
# 生成 key
openssl genrsa -out dashboard.key 2048
# 生成证书请求
openssl req -days 36000 -new -out dashboard.csr -key dashboard.key -subj '/CN=**192.168.6.1**'
# 生成自签证书
openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt
# 目录结构
[root@k8smaster key]# ll
total 12
-rw-r--r-- 1 root root 1001 Oct 23 22:21 dashboard.crt
-rw-r--r-- 1 root root 903 Oct 23 22:20 dashboard.csr
-rw-r--r-- 1 root root 1679 Oct 23 22:20 dashboard.key
# 使用自签证书创建secret
kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kubernetes-dashboard
在master节点上这是label，拉取镜像
# 设置node选择器label为master
kubectl label node master type=master
# 拉取镜像
docker pull kubernetesui/dashboard:v2.0.0-beta4
4，启动
kubectl apply -f recommended.yaml
5，检查
[root@master ~]# kubectl get pod,svc -n kubernetes-dashboard -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod/dashboard-metrics-scraper-76585494d8-6chpt 1/1 Running 0 58m 10.100.8.16 node2 <none> <none>
pod/kubernetes-dashboard-6b86b44f87-ftp56 1/1 Running 0 58m 10.100.6.141 node1 <none> <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/dashboard-metrics-scraper ClusterIP 10.96.219.0 <none> 8000/TCP 58m k8s-app=dashboard-metrics-scraper
service/kubernetes-dashboard NodePort 10.96.35.163 <none> 443:30001/TCP 58m k8s-app=kubernetes-dashboard
6，管理员登陆
image.png
# 创建sa
kubectl create serviceaccount dashboard-admin -n kubernetes-dashboard
# 绑定集群管理员
kubectl create clusterrolebinding dashboard-cluster-admin --clusterrole=cluster-admin --serviceaccount=kubernetes-dashboard:dashboard-admin
# 查看sa以及secrets
[root@master ~]# kubectl get sa,secrets -n kubernetes-dashboard
NAME SECRETS AGE
serviceaccount/dashboard-admin 1 57m
serviceaccount/default 1 72m
serviceaccount/kubernetes-dashboard 1 60m
NAME TYPE DATA AGE
secret/dashboard-admin-token-jchd2 kubernetes.io/service-account-token 3 57m
secret/default-token-mgtf6 kubernetes.io/service-account-token 3 72m
secret/kubernetes-dashboard-certs Opaque 2 72m
secret/kubernetes-dashboard-csrf Opaque 1 60m
secret/kubernetes-dashboard-key-holder Opaque 2 60m
secret/kubernetes-dashboard-token-sqhkh kubernetes.io/service-account-token 3 60m
- 获取token
kubectl describe secrets $(kubectl get secrets -n kubernetes-dashboard | awk '/dashboard-admin-token/{print $1}' ) -n kubernetes-dashboard |sed -n '/token:.*/p'
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