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加拿大计划网站怎么做,不限次数观看视频的app,网页游戏新区开服,90设计电脑版继续上篇内容 目录 7、安装flannel 8、节点管理命令 三、安装Dashboard UI 1、部署Dashboard 2、开放端口设置 3、权限配置 7、安装flannel Master 节点NotReady 的原因就是因为没有使用任何的网络插件,此时Node 和Master的连接还不正常。目前最流行的Kuber…

继续上篇内容

目录

7、安装flannel

8、节点管理命令

三、安装Dashboard UI

1、部署Dashboard

2、开放端口设置

3、权限配置


7、安装flannel

Master 节点NotReady 的原因就是因为没有使用任何的网络插件,此时Node 和Master的连接还不正常。目前最流行的Kubernetes 网络插件有Flannel、Calico、Canal、Weave 这里选择使用flannel。

[root@k8s-master ~]# docker load < flannel_v0.12.0-amd64.tar
256a7af3acb1: Loading layer [==================================================>]  5.844MB/5.844MB
d572e5d9d39b: Loading layer [==================================================>]  10.37MB/10.37MB
57c10be5852f: Loading layer [==================================================>]  2.249MB/2.249MB
7412f8eefb77: Loading layer [==================================================>]  35.26MB/35.26MB
05116c9ff7bf: Loading layer [==================================================>]   5.12kB/5.12kB
Loaded image: quay.io/coreos/flannel:v0.12.0-amd64

所有主机:

master上传kube-flannel.yml,所有主机上传flannel_v0.12.0-amd64.tar

[root@k8s-master ~]# ll
总用量 52496
-rw-------. 1 root root     1257 7月  18 16:47 anaconda-ks.cfg
-rw-r--r--. 1 root root 53746688 12月 16 2020 flannel_v0.12.0-amd64.tar
-rw-r--r--. 1 root root      895 8月  10 14:18 init-config.yaml
[root@k8s-master ~]# docker load < flannel_v0.12.0-amd64.tar
256a7af3acb1: Loading layer [==================================================>]  5.844MB/5.844MB
d572e5d9d39b: Loading layer [==================================================>]  10.37MB/10.37MB
57c10be5852f: Loading layer [==================================================>]  2.249MB/2.249MB
7412f8eefb77: Loading layer [==================================================>]  35.26MB/35.26MB
05116c9ff7bf: Loading layer [==================================================>]   5.12kB/5.12kB
Loaded image: quay.io/coreos/flannel:v0.12.0-amd64

三台主机安装cni插件,这些文件都可以从官网获取

[root@k8s-master ~]# ll
总用量 88512
-rw-------. 1 root root     1257 7月  18 16:47 anaconda-ks.cfg
-rw-r--r--. 1 root root 36878412 11月 10 2021 cni-plugins-linux-amd64-v0.8.6.tgz
[root@k8s-master ~]# tar xf cni-plugins-linux-amd64-v0.8.6.tgz
[root@k8s-master ~]# cp flannel /opt/cni/bin/
[root@k8s-master ~]#  kubectl apply -f kube-flannel.yml
podsecuritypolicy.policy/psp.flannel.unprivileged created
Warning: rbac.authorization.k8s.io/v1beta1 ClusterRole is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 ClusterRole
clusterrole.rbac.authorization.k8s.io/flannel created
Warning: rbac.authorization.k8s.io/v1beta1 ClusterRoleBinding is deprecated in v1.17+, unavailable in v1.22+; use rbac.authorization.k8s.io/v1 ClusterRoleBinding
clusterrolebinding.rbac.authorization.k8s.io/flannel created
serviceaccount/flannel created
configmap/kube-flannel-cfg created
daemonset.apps/kube-flannel-ds-amd64 created
daemonset.apps/kube-flannel-ds-arm64 created
daemonset.apps/kube-flannel-ds-arm created
daemonset.apps/kube-flannel-ds-ppc64le created
daemonset.apps/kube-flannel-ds-s390x created
[root@k8s-master ~]# kubectl get nodes
NAME         STATUS   ROLES    AGE     VERSION
k8s-master   Ready    master   7m53s   v1.19.0
k8s-node01   Ready    <none>   6m12s   v1.19.0
k8s-node02   Ready    <none>   6m8s    v1.19.0

已经是ready状态了

第一个拉取镜像时间会比较长,先做后面的不影响

[root@k8s-master ~]# kubectl get pods -n kube-system
NAME                                 READY   STATUS    RESTARTS   AGE
coredns-6d56c8448f-4rvnr             1/1     Running   0          10m
coredns-6d56c8448f-9mn9h             1/1     Running   0          10m
etcd-k8s-master                      1/1     Running   0          10m
kube-apiserver-k8s-master            1/1     Running   0          10m
kube-controller-manager-k8s-master   1/1     Running   0          10m
kube-flannel-ds-amd64-2h859          1/1     Running   0          2m23s
kube-flannel-ds-amd64-6gqct          1/1     Running   0          2m23s
kube-flannel-ds-amd64-rvljf          1/1     Running   0          2m23s
kube-proxy-bxh2m                     1/1     Running   0          8m28s
kube-proxy-s7jxv                     1/1     Running   0          10m
kube-proxy-xdr5v                     1/1     Running   0          8m30s
kube-scheduler-k8s-master            1/1     Running   0          10m

8、节点管理命令

以下命令无需执行,仅作为了解

重置master和node配置

[root@k8s-master ~]# kubeadm reset

删除node配置

[root@k8s-master ~]# kubectl delete node k8s-node01[root@k8s-node01 ~]# docker rm -f $(docker ps -aq)
[root@k8s-node01 ~]# systemctl stop kubelet
[root@k8s-node01 ~]# rm -rf /etc/kubernetes/*
[root@k8s-node01 ~]# rm -rf /var/lib/kubelet/*

三、安装Dashboard UI

1、部署Dashboard

dashboard的github仓库地址:https://github.com/kubernetes/dashboard

代码仓库当中,有给出安装示例的相关部署文件,我们可以直接获取之后,直接部署即可

[root@k8s-master ~]# wget https://raw.githubusercontent.com/kubernetes/dashboard/master/aio/deploy/recommended.yaml

默认这个部署文件当中,会单独创建一个名为kubernetes-dashboard的命名空间,并将kubernetes-dashboard部署在该命名空间下。dashboard的镜像来自docker hub官方,所以可不用修改镜像地址,直接从官方获取即可。

2、开放端口设置

在默认情况下,dashboard并不对外开放访问端口,这里简化操作,直接使用nodePort的方式将其端口暴露出来,修改serivce部分的定义:

[root@k8s-master ~]# vim recommended.yaml
30 ---31 32 kind: Service33 apiVersion: v134 metadata:35   labels:36     k8s-app: kubernetes-dashboard37   name: kubernetes-dashboard38   namespace: kubernetes-dashboard39 spec:40   type: NodePort41   ports:42     - port: 44343       targetPort: 844344       nodePort: 3244345   selector:46     k8s-app: kubernetes-dashboard47 48 ---192           image: kubernetesui/dashboard:v2.0.0
276           image: kubernetesui/metrics-scraper:v1.0.4

3、权限配置

配置一个超级管理员权限

[root@k8s-master ~]#  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-master ~]# kubectl get pods -n kubernetes-dashboard
NAME                                         READY   STATUS    RESTARTS   AGE
dashboard-metrics-scraper-7b59f7d4df-rhl9r   1/1     Running   0          37s
kubernetes-dashboard-74d688b6bc-whtfr        1/1     Running   0          37s
[root@k8s-master ~]# kubectl get pods -A -o wide
NAMESPACE              NAME                                         READY   STATUS    RESTARTS   AGE   IP                NODE         NOMINATED NODE   READINESS GATES
kube-system            coredns-6d56c8448f-fghft                     1/1     Running   0          37m   10.244.2.2        k8s-node02   <none>           <none>
kube-system            coredns-6d56c8448f-t7jzh                     1/1     Running   0          37m   10.244.1.2        k8s-node01   <none>           <none>
kube-system            etcd-k8s-master                              1/1     Running   0          38m   192.168.147.138   k8s-master   <none>           <none>
kube-system            kube-apiserver-k8s-master                    1/1     Running   0          38m   192.168.147.138   k8s-master   <none>           <none>
kube-system            kube-controller-manager-k8s-master           1/1     Running   0          38m   192.168.147.138   k8s-master   <none>           <none>
kube-system            kube-flannel-ds-amd64-2vfvg                  1/1     Running   0          30m   192.168.147.139   k8s-node01   <none>           <none>
kube-system            kube-flannel-ds-amd64-88g4t                  1/1     Running   0          30m   192.168.147.140   k8s-node02   <none>           <none>
kube-system            kube-flannel-ds-amd64-fbn4v                  1/1     Running   0          30m   192.168.147.138   k8s-master   <none>           <none>
kube-system            kube-proxy-b26zq                             1/1     Running   0          36m   192.168.147.139   k8s-node01   <none>           <none>
kube-system            kube-proxy-jzjkq                             1/1     Running   0          36m   192.168.147.140   k8s-node02   <none>           <none>
kube-system            kube-proxy-r9ckd                             1/1     Running   0          37m   192.168.147.138   k8s-master   <none>           <none>
kube-system            kube-scheduler-k8s-master                    1/1     Running   0          38m   192.168.147.138   k8s-master   <none>           <none>
kubernetes-dashboard   dashboard-metrics-scraper-7b59f7d4df-rhl9r   1/1     Running   0          75s   10.244.2.3        k8s-node02   <none>           <none>
kubernetes-dashboard   kubernetes-dashboard-74d688b6bc-whtfr        1/1     Running   0          75s   10.244.1.3        k8s-node01   <none>           <none>

使用火狐浏览器登录IP,选择高级,接受风险

 

可以看到出现如上图画面,需要我们输入一个kubeconfig文件或者一个token。事实上在安装dashboard时,也为我们默认创建好了一个serviceaccount,为kubernetes-dashboard,并为其生成好了token,我们可以通过如下指令获取该sa的token:

[root@k8s-master ~]#  kubectl describe secret -n kubernetes-dashboard $(kubectl get secret -n kubernetes-dashboard |grep kubernetes-dashboard-token | awk '{print $1}') |grep token | awk '{print $2}'
kubernetes-dashboard-token-4fjtj
kubernetes.io/service-account-token
eyJhbGciOiJSUzI1NiIsImtpZCI6IklVQ1J5cklyajJrRkd5MWV0Z0ZrRDNLQVVoWXZXM3I5RGIxMFl1d1I1NzQifQ.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.ZyrPFXYexeoLbz48ZZ7WHglk00WhOpU-Dabb1ZR088uWA8Gx2rmi-SbuFQ7qyliXpCIDG6jkKMDZXYR0h7bWG8S0Fx2OhFZmqcwZ4GbenmQc7MYLD1w1HQHi8SRlDUzQ8pJ_hMHQOKQsUa8JMyXvzRXD998H2WFQHJe95ke8BeDJ5oCFwS-GIVwwA1h4DHUuhjSnvPBhi0wuiZhK1VDXqfx4cq6ko83tyRfjAAsCsF7bcnOX1n0y8tUrK0WDmJMnhBB5EGK8O8xNjqYqzWt_GyHY-AQG8tnnDtCBw-e5oMZvdfFyk5XSSqaUBYTm_ebMjKvvTMWmxPcqMuGrYUAglw

 

 

 

 

 

 

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