安装部署GUI插件：
准备镜像：
[root@hdss7-200 ~]# docker pull k8scn/kubernetes-dashboard-amd64:v1.8.3 v1.8.3: Pulling from k8scn/kubernetes-dashboard-amd64 a4026007c47e: Pull complete Digest: sha256:ebc993303f8a42c301592639770bd1944d80c88be8036e2d4d0aa116148264ff Status: Downloaded newer image for k8scn/kubernetes-dashboard-amd64:v1.8.3 docker.io/k8scn/kubernetes-dashboard-amd64:v1.8.3 [root@hdss7-200 ~]# docker images |grep dash [root@hdss7-200 ~]# docker push harbor.od.com/public/dashboard:v1.8.3 The push refers to repository [harbor.od.com/public/dashboard] 23ddb8cbb75a: Mounted from public/dashboard.od.com v1.8.3: digest: sha256:ebc993303f8a42c301592639770bd1944d80c88be8036e2d4d0aa116148264ff size: 529
准备资源配置清单：
mkdir -p /data/k8s-yaml/dashboard
# cat rbac.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
addonmanager.kubernetes.io/mode: Reconcile
name: kubernetes-dashboard-admin
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard-admin
namespace: kube-system
labels:
k8s-app: kubernetes-dashboard
addonmanager.kubernetes.io/mode: Reconcile
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard-admin
namespace: kube-system
# cat dp.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: kubernetes-dashboard
namespace: kube-system
labels:
k8s-app: kubernetes-dashboard
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
spec:
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ''
spec:
priorityClassName: system-cluster-critical
containers:
- name: kubernetes-dashboard
image: harbor.od.com/public/dashboard:v1.8.3
resources:
limits:
cpu: 100m
memory: 300Mi
requests:
cpu: 50m
memory: 100Mi
ports:
- containerPort: 8443
protocol: TCP
args:
# PLATFORM-SPECIFIC ARGS HERE
- --auto-generate-certificates
volumeMounts:
- name: tmp-volume
mountPath: /tmp
livenessProbe:
httpGet:
scheme: HTTPS
path: /
port: 8443
initialDelaySeconds: 30
timeoutSeconds: 30
volumes:
- name: tmp-volume
emptyDir: {}
serviceAccountName: kubernetes-dashboard-admin
tolerations:
- key: "CriticalAddonsOnly"
operator: "Exists"
# cat svc.yaml
apiVersion: v1
kind: Service
metadata:
name: kubernetes-dashboard
namespace: kube-system
labels:
k8s-app: kubernetes-dashboard
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
spec:
selector:
k8s-app: kubernetes-dashboard
ports:
- port: 443
targetPort: 8443
# cat ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: kubernetes-dashboard
namespace: kube-system
annotations:
kubernetes.io/ingress.class: traefik
spec:
rules:
- host: dashboard.od.com
http:
paths:
- backend:
serviceName: kubernetes-dashboard
servicePort: 443
应用资源配置清单：
[root@hdss7-22 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/rbac.yaml serviceaccount/kubernetes-dashboard-admin created clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-admin created [root@hdss7-22 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/dp.yaml deployment.apps/kubernetes-dashboard created [root@hdss7-22 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/svc.yaml service/kubernetes-dashboard created [root@hdss7-22 ~]# kubectl apply -f http://k8s-yaml.od.com/dashboard/ingress.yaml ingress.extensions/kubernetes-dashboard created [root@hdss7-22 ~]# kubectl get pod -n kube-system NAME READY STATUS RESTARTS AGE coredns-6b6c4f9648-j7cv9 1/1 Running 0 5h8m kubernetes-dashboard-76dcdb4677-vhf5p 1/1 Running 0 8m24s
到我们自建的dns上面配置域名解析：
[root@hdss7-11 named]# cat od.com.zone $ORIGIN od.com. $TTL 600; 10 minutes @ IN SOAdns.od.com. dnsadmin.od.com. ( 2019111005 ; serial 10800 ; refresh (3 hours) 900 ; retry (15 minutes) 604800 ; expire (1 week) 86400 ; minimum (1 day) ) NS dns.od.com. $TTL 60; 1 minute dns A 10.4.7.11 harbor A 10.4.7.200 k8s-yaml A 10.4.7.200 fraefik A 10.4.7.11 dashboard A 10.4.7.11 [root@hdss7-11 named]# systemctl restart named [root@hdss7-11 named]# dig -t A dashboard.od.com +short 10.4.7.11
浏览器访问：
我们先点击跳过：
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k8s自1.6版本起默认使用基于角色的访问控制即RBAC，相较于ABAC（基于属性的访问控制）和webHook等鉴权机制，对集群中的资源的权限实现了完整覆盖，并且支持权限的动态调整，无需重启apiserver
可以使用kubectl查看k8s集群中所有权限：
[root@hdss7-22 ~]# kubectl get clusterrole NAME AGE admin 2d14h cluster-admin 2d14h edit 2d14h system:aggregate-to-admin 2d14h system:aggregate-to-edit 2d14h system:aggregate-to-view 2d14h system:auth-delegator 2d14h system:basic-user 2d14h system:certificates.k8s.io:certificatesigningrequests:nodeclient 2d14h system:certificates.k8s.io:certificatesigningrequests:selfnodeclient 2d14h system:controller:attachdetach-controller 2d14h system:controller:certificate-controller 2d14h system:controller:clusterrole-aggregation-controller 2d14h system:controller:cronjob-controller 2d14h system:controller:daemon-set-controller 2d14h system:controller:deployment-controller 2d14h
我们使用openssl给dashboard的域名配置自签的https证书，使其支持https访问：
[root@hdss7-200 certs]# (umask 077; openssl genrsa -out dashboard.od.com.key 2048) Generating RSA private key, 2048 bit long modulus ................................................+++ ..........................................+++ e is 65537 (0x10001) [root@hdss7-200 certs]# [root@hdss7-200 certs]# [root@hdss7-200 certs]# ll 总用量 104 -rw-r--r-- 1 root root 1257 3月 26 22:54 apiserver.csr -rw-r--r-- 1 root root 587 3月 26 22:52 apiserver-csr.json -rw------- 1 root root 1679 3月 26 22:54 apiserver-key.pem -rw-r--r-- 1 root root 1602 3月 26 22:54 apiserver.pem -rw-r--r-- 1 root root 836 3月 25 21:37 ca-config.json -rw-r--r-- 1 root root 993 3月 25 21:19 ca.csr -rw-r--r-- 1 root root 326 3月 25 21:18 ca-csr.json -rw------- 1 root root 1675 3月 25 21:19 ca-key.pem -rw-r--r-- 1 root root 1338 3月 25 21:19 ca.pem -rw-r--r-- 1 root root 993 3月 25 23:12 client.csr -rw-r--r-- 1 root root 280 3月 25 23:07 client-csr.json -rw------- 1 root root 1679 3月 25 23:12 client-key.pem -rw-r--r-- 1 root root 1363 3月 25 23:12 client.pem -rw------- 1 root root 1675 3月 28 14:39 dashboard.od.com.key -rw-r--r-- 1 root root 1062 3月 25 21:41 etcd-peer.csr -rw-r--r-- 1 root root 363 3月 25 21:38 etcd-peer-csr.json -rw------- 1 root root 1679 3月 25 21:41 etcd-peer-key.pem -rw-r--r-- 1 root root 1424 3月 25 21:41 etcd-peer.pem -rw-r--r-- 1 root root 1123 3月 26 22:55 kubelet.csr -rw-r--r-- 1 root root 469 3月 26 22:52 kubelet-csr.json -rw------- 1 root root 1675 3月 26 22:55 kubelet-key.pem -rw-r--r-- 1 root root 1472 3月 26 22:55 kubelet.pem -rw-r--r-- 1 root root 1005 3月 26 22:36 kube-proxy-client.csr -rw------- 1 root root 1679 3月 26 22:36 kube-proxy-client-key.pem -rw-r--r-- 1 root root 1375 3月 26 22:36 kube-proxy-client.pem -rw-r--r-- 1 root root 267 3月 26 22:33 kube-proxy-csr.json [root@hdss7-200 certs]# openssl req -new -key dashboard.od.com.key -out dashboard.od.com.csr -subj "/CN=dashboard.od.com/C=CN/ST=BJ/L=Beijing/O=DayaZZ/OU=ops" [root@hdss7-200 certs]# openssl x509 -req -in dashboard.od.com.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out dashboard.od.com.crt -days 3650 Signature ok subject=/CN=dashboard.od.com/C=CN/ST=BJ/L=Beijing/O=DayaZZ/OU=ops Getting CA Private Key
将https证书拷贝到11主机上：
[root@hdss7-11 nginx]# mkdir -p /etc/nginx/certs
[root@hdss7-11 certs]# ll
总用量 8
-rw-r--r-- 1 root root 1188 3月 28 14:42 dashboard.od.com.crt
-rw------- 1 root root 1675 3月 28 14:43 dashboard.od.com.key
[root@hdss7-11 certs]# pwd
/etc/nginx/certs
[root@hdss7-11 conf.d]# cat dashboard.od.com.conf
server {
listen 80;
server_name dashboard.od.com 116.85.5.4;
rewrite ^(.*)$ https://${server_name}$1 permanent;
}
server {
listen 443 ssl;
server_name dashboard.od.com 116.85.5.4;
ssl_certificate "certs/dashboard.od.com.crt";
ssl_certificate_key "certs/dashboard.od.com.key";
ssl_session_cache shared:SSL:1m;
ssl_session_timeout 10m;
ssl_ciphers HIGH:!aNULL:!MD5;
ssl_prefer_server_ciphers on;
location / {
proxy_pass http://default_backend_traefik;
proxy_set_header Host dashboard.od.com;
proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;
}
}
nginx -s reload
然后取出我们的dashboard令牌：
[root@hdss7-22 ~]# kubectl get secret -n kube-system NAME TYPE DATA AGE coredns-token-dkd6k kubernetes.io/service-account-token 3 6h25m default-token-q462s kubernetes.io/service-account-token 3 41h kubernetes-dashboard-admin-token-npgjj kubernetes.io/service-account-token 3 84m kubernetes-dashboard-key-holder Opaque 2 84m traefik-ingress-controller-token-w8thz kubernetes.io/service-account-token 3 5h12m [root@hdss7-22 ~]# kubectl describe kubernetes-dashboard-admin-token-npgjj -n kube-system error: the server doesn't have a resource type "kubernetes-dashboard-admin-token-npgjj" [root@hdss7-22 ~]# kubectl describe secret kubernetes-dashboard-admin-token-npgjj -n kube-system Name: kubernetes-dashboard-admin-token-npgjj Namespace: kube-system Labels: <none> Annotations: kubernetes.io/service-account.name: kubernetes-dashboard-admin kubernetes.io/service-account.uid: b36a01a3-a99f-4cf4-ad53-df8e55e26aec Type: kubernetes.io/service-account-token Data ==== ca.crt: 1338 bytes namespace: 11 bytes token: eyJhbGciOiJSUzI1NiIsJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZC1hZG1pbi10b2tlbi1ucGdqaiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZC1hZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6ImIzNmEwMWEzLWE5OWYtNGNmNC1hZDUzLWRmOGU1NWUyNmFlYyIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlLXN5c3RlbTprdWJlcm5ldGVzLWRhc2hib2FyZC1hZG1pbiJ9.iQSC15Mjo1MHjhQ56f3muLUHbfGfOWAIFUiwvjB_qer1xAAc_k3GB-G2ESRuKJQgbI3L9WBICAG_hXKTFWpKXwY2BKoma7XKFUf3662PME4p2QIdCyESbxIdVWdfwu7fw_S6mYc2R_uIoVOZjlJ2DlrUhs-KyBBzOIazOuXgOcH08Igpj2xBDiXKEPh8IQOhL8O9dmPWMXQWAboDvEDY23WDgBHLQofmtfx-o9IEb_Cuh9xhelbPNHfiSFVVvlBQBmOynz7OpNYsIJ1T1hcbfg0aXMv0NIIk13HrUSXcCL3PUnrWvtVdOjoed-seEnqmj4B6Eqif2p0arK1SF2S_wQ
复制token，到dashboard的登录页面，粘贴进去：
如下表示登录成功：
