Kubernetes-dashboard搭建

k8s-dashboard搭建

基于CentOS7 k8s集群

Master

镜像下载

1
2
docker pull docker.io/siriuszg/kubernetes-dashboard-amd64:v1.5.1
docker pull registry.access.redhat.com/rhel7/pod-infrastructure

由于docker版本过低 need>1.12
所以运行docker pull registry.access会发生问题，所以需要在执行另外命令

1
2
3
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm
rpm2cpio python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm | cpio -iv --to-stdout ./etc/rhsm/ca/redhat-uep.pem | tee /etc/rhsm/ca/redhat-uep.pem
#ps 这步也需要在node节点上运行

运行完毕后再pull，镜像即可正常下载

配置kubernetes的dashboard

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
cat > kubernetes-dashboard.yaml <EOF
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  labels:
    app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: kubernetes-dashboard
  template:
    metadata:
      labels:
        app: kubernetes-dashboard
      # Comment the following annotation if Dashboard must not be deployed on master
      annotations:
        scheduler.alpha.kubernetes.io/tolerations: |
          [
            {
              "key": "dedicated",
              "operator": "Equal",
              "value": "master",
              "effect": "NoSchedule"
            }
          ]
    spec:
      containers:
      - name: kubernetes-dashboard
#此次修改为下载的镜像地址
        image: docker.io/siriuszg/kubernetes-dashboard-amd64:v1.5.1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9090
          protocol: TCP
        args:
          # 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.
#此处修改为apiserver地址即可
        - --apiserver-host=http://192.168.1.90:8080
        livenessProbe:
          httpGet:
            path: /
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30
EOF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
cat > dashboard-service.yaml <EOF
kind: Service
apiVersion: v1
metadata:
  labels:
    app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  type: NodePort
  ports:
  - port: 80
    targetPort: 9090
  selector:
    app: kubernetes-dashboard
EOF

创建相对于服务

1
2
3
kubectl create -f kubernetes-dashboard.yaml
kubectl create -f dashboard-service.yaml
#ps 如果要删除则把命令中create替换为delete即可

测试

1
2
3
kubectl get deployment --all-namespaces
NAMESPACE     NAME                   DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
kube-system   kubernetes-dashboard   1         1         1            1           1d
1
2
3
kubectl get svc --all-namespaces
NAMESPACE     NAME                   CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
kube-system   kubernetes-dashboard   10.10.30.200    <nodes>       80:32317/TCP    1d
1
2
3
kubectl get pod -o wide --all-namespaces
NAMESPACE     NAME                                    READY     STATUS    RESTARTS   AGE       IP           NODE
kube-system   kubernetes-dashboard-2899419805-686b7   1/1       Running   1          1d        172.8.17.2   192.168.1.92

看到相对应服务已经运行即可
访问 http://192.168.1.90:8080/ui