91、K8s之ingress上集

一、Ingress

service模式：

loadbalance

NodePort：每个节点都会有一个指定的端口 30000-32767 内网

clusterip：默认模式，只能pod内部访问

externalName：需要dns提供域名

1.1、对外提供服务的ingress

service：网关的概念-----标签来匹配pod，还能通过endpoint更新pod的变化，集群内部的ip地址。也可以实现负载均衡，四层代理。

service暴露的端口只能用于内网访问，局域网。

loadbalance-------公有云--------提供负载均衡的ip-------公网地址。

Ingress

Ingress：在k8s当中，Ingress是一个独立的组件（deployment ns svc）独立的配置，只能通过yaml文件配置。不能命令行。

定义请求如何转发到service的规则。

ingress通过http或者https暴露内部的service，给service提供外部的url，负载均衡 SSL/TLS。基于域名的反向代理。

ingess通过ingress-controller来实现上述的功能。

ingress-controller不是k8s自带的组件，这是插件的统称。

k8s维护的插件类型

glogle云的GCE
Ingress-nginx-------最常用的模式
traefik--------------带可视化界面—ui界面—并发量只有ingress-nginx的流程。

流量转发示意图:

在这里插入图片描述

1.2、ingress-nginx暴露服务的方式：

1、deployment+loadbalance------->service
需要公有云提供负载均衡的ip地址---------公网地址。
2、DaemonSet+HostNetwork + NodeSelector
ingress-controller会在每个节点部署一个pod，ingress-controller直接使用每个节点的80和443端口，直接实现流量的转发和访问。

NodeSelector用来选择设备优良，或者选择端口没被占用的节点。

DaemonSet+HostNetwork + NodeSelector模式：

优点:
使用宿主机端口，适合大并发的生产环境，性能是最好的
缺点:
和宿主机公用端口，一个node节点只能部署一个ingress-controller的pod

在这里插入图片描述

3、Deployment+nodePort模式：

nodePort--------->30000-------80—80

ingress根据副本数和调度在节点上部署多个pod。在根据nodePort在每个节点打开一个指定的端口 30000-32767

在这里插入图片描述

客户端--------->www.xy102.com------------->service-------------->nodeport---------->clusterip-------容器端口

1、这种模式优点：不占用宿主机的端口，配置简单使用于内部并发不大的访问。

2、缺点，性能差，多了一个nodeport还涉及nodeport的转发，实际上通过nat模式做地址转换，性能上有影响。

在这里插入图片描述

3、DaemonSet+HostNetwork + NodeSelector模式


-----------------同步操作--------------------------
[root@master01 opt]# tar -xf ingree.contro-0.30.0.tar.gz [root@master01 opt]# docker load -i ingree.contro-0.30.0.tar[root@master01 opt]# mkdir ingress
[root@master01 opt]# cd ingress/
[root@master01 ingress]# wget https://gitee.com/mirrors/ingress-nginx/raw/0.30.0/deploy/static/mandatory.yaml
-------------------结束同步---------------------[root@master01 ingress]# vim mandatory.yaml apiVersion: apps/v1
191 #kind: Deployment
192 kind: DaemonSet
metadata:name: nginx-ingress-controllernamespace: ingress-nginxlabels:app.kubernetes.io/name: ingress-nginxapp.kubernetes.io/part-of: ingress-nginx
spec:
200 #  replicas: 1219       hostNetwork: true[root@master01 ingress]# kubectl apply -f mandatory.yaml [root@master01 ingress]# kubectl get pod -o wide -n ingress-nginx 
NAME                             READY   STATUS    RESTARTS   AGE   IP               NODE       NOMINATED NODE   READINESS GATES
nginx-ingress-controller-27lvf   1/1     Running   0          23s   192.168.168.81   master01   <none>           <none>
nginx-ingress-controller-29ckx   1/1     Running   0          23s   192.168.168.83   node02     <none>           <none>
nginx-ingress-controller-kn8ww   1/1     Running   0          23s   192.168.168.82   node01     <none>           <none>
---------------开启同步-------------------------
打开同步查看80+443端口
[root@master01 ingress]# netstat -antp | grep nginx
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      22509/nginx: master 
tcp        0      0 0.0.0.0:8181            0.0.0.0:*               LISTEN      22509/nginx: master 
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      22509/nginx: master 
[root@node01 ingress]# netstat -antp | grep nginx[root@node02 ingress]# netstat -antp | grep nginx8181 端口是nginx-controller的默认配置，当ingress没有资源可以匹配时，会自动转发到这个端口。
---------------------查看节点端口开放----------------[root@master01 ingress]# kubectl explain ingress
KIND:     Ingress
VERSION:  networking.k8s.io/v1[root@master01 ingress]# vim ingress-nginx1.yamlapiVersion: v1
kind: PersistentVolumeClaim
metadata:name: nfs-pvc
spec:accessModes:- ReadWriteManystorageClassName: nfs-client-storageclassresources:requests:storage: 2Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:name: nginx-applabels:app: nginx
spec:replicas: 3selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginx:1.22ports:- containerPort: 80volumeMounts:- name: nfs-pvcmountPath: /usr/share/nginx/htmlvolumes:- name: nfs-pvcpersistentVolumeClaim:claimName: nfs-pvc
---
apiVersion: v1
kind: Service
metadata:name: nginx-daemon-svc
spec:type: ClusterIPports:- protocol: TCPport: 80targetPort: 80selector:app: nginx
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:name: nginx-daemon-ingress
spec:rules:- host: www.xy102.comhttp:paths:- path: /pathType: Prefix
#前缀匹配，匹配/ /test1 /test1/test2backend:
#匹配的svc的名称----podservice:name: nginx-daemon-svcport:number: 80[root@master01 ingress]# kubectl apply -f ingress-nginx1.yaml [root@k8s5 k8s]# ll
总用量 0
drwxrwxrwx. 2 root root  6 9月  10 10:34 default-nfs-pvc-pvc-8e552463-1055-4d12-9fcf-1f0da12cf3d9
drwxrwxrwx. 2 root root 62 9月   8 16:55 default-redis-data-redis-master-0-pvc-4c38e65b-5e5d-45c5-a58d-6d7c0bd69b39
drwxrwxrwx. 2 root root 62 9月   8 16:55 default-redis-data-redis-replica-0-pvc-eabc2e78-7b0c-4c72-ac16-bf44eca0d524
drwxrwxrwx. 2 root root 62 9月   8 16:43 default-redis-data-redis-replica-1-pvc-d5b0e813-8bed-4b00-8df6-69ad648ecc2c
[root@k8s5 k8s]# rm -rf default-redis-data-redis-*
[root@k8s5 k8s]# ll
总用量 0
drwxrwxrwx. 2 root root 6 9月  10 10:34 default-nfs-pvc-pvc-8e552463-1055-4d12-9fcf-1f0da12cf3d9
[root@k8s5 k8s]# cd default-nfs-pvc-pvc-8e552463-1055-4d12-9fcf-1f0da12cf3d9/
[root@k8s5 default-nfs-pvc-pvc-8e552463-1055-4d12-9fcf-1f0da12cf3d9]# ls
[root@k8s5 default-nfs-pvc-pvc-8e552463-1055-4d12-9fcf-1f0da12cf3d9]# echo 123 > index.html[root@master01 ingress]# vim /etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.168.81 master01 www.xy102.com
192.168.168.82 node01
192.168.168.83 node02
192.168.168.84 hub.test.com
192.168.168.85 k8s5[root@master01 ingress]# curl www.xy102.com
123[root@node01 ingress]# vim /etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.168.81 master01 www.xy102.com[root@node01 ingress]# curl www.xy102.com
123[root@node02 ingress]# vim /etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.168.81 master01 www.xy102.com[root@node02 ingress]# curl www.xy102.com
123[root@k8s5 default-nfs-pvc-pvc-51fc1314-0c17-4f04-b539-d2508ac35ca3]# mkdir test1
[root@k8s5 default-nfs-pvc-pvc-51fc1314-0c17-4f04-b539-d2508ac35ca3]# ll
总用量 4
-rw-r--r--. 1 root root 4 9月  10 11:51 index.html
drwxr-xr-x. 2 root root 6 9月  10 12:32 test1
[root@k8s5 default-nfs-pvc-pvc-51fc1314-0c17-4f04-b539-d2508ac35ca3]# cd test1/
[root@k8s5 test1]# echo 456 > index.html
[root@k8s5 test1]# [root@master01 ingress]# curl www.xy102.com/test1
<html>
<head><title>301 Moved Permanently</title></head>
<body>
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx/1.22.1</center>
</body>
</html>
[root@master01 ingress]# curl -L www.xy102.com/test1
456[root@k8s5 test1]# pwd
/opt/k8s/default-nfs-pvc-pvc-51fc1314-0c17-4f04-b539-d2508ac35ca3/test1
[root@k8s5 test1]# ll
总用量 4
-rw-r--r--. 1 root root 4 9月  10 12:32 index.html
[root@k8s5 test1]# mkdir test2
[root@k8s5 test1]# cd test2/
[root@k8s5 test2]# echo 789 > index.html[root@master01 ingress]# curl -L www.xy102.com/test1/test2
789
-----------------------------------------------------------------------------------------------------------------DaemonSet+HostNetwork+NodeSelector模式----------------------------
##节点选择NodeSelector模式
[root@master01 ingress]# vim mandatory.yaml 190 apiVersion: apps/v1
191 #kind: Deployment
192 kind: DaemonSet
193 metadata:
194   name: nginx-ingress-controller
195   namespace: ingress-nginx
196   labels:
197     app.kubernetes.io/name: ingress-nginx
198     app.kubernetes.io/part-of: ingress-nginx
199 spec:
200 #  replicas: 1
201   selector:
202     matchLabels:
203       app.kubernetes.io/name: ingress-nginx
204       app.kubernetes.io/part-of: ingress-nginx
205   template:
206     metadata:
207       labels:
208         app.kubernetes.io/name: ingress-nginx
209         app.kubernetes.io/part-of: ingress-nginx
210       annotations:
211         prometheus.io/port: "10254"
212         prometheus.io/scrape: "true"
213     spec:
214       # wait up to five minutes for the drain of connections
215       terminationGracePeriodSeconds: 300
216       serviceAccountName: nginx-ingress-serviceaccount
217       nodeSelector:
218         kubernetes.io/os: linux
219       hostNetwork: true
220       nodeSelector:
221         ingress: "true"[root@master01 ingress]# kubectl get nodes --show-labels 
NAME       STATUS   ROLES                  AGE   VERSION    LABELS
master01   Ready    control-plane,master   14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=master01,kubernetes.io/os=linux,node-role.kubernetes.io/control-plane=,node-role.kubernetes.io/master=
node01     Ready    <none>                 14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node01,kubernetes.io/os=linux,memory=1000,test1=a,test3=b
node02     Ready    <none>                 14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node02,kubernetes.io/os=linux,test2=b,xy102=98打上ingress=true标签
[root@master01 ingress]# kubectl label nodes node01 ingress=true
node/node01 labeled
[root@master01 ingress]# kubectl get nodes --show-labels 
NAME       STATUS   ROLES                  AGE   VERSION    LABELS
master01   Ready    control-plane,master   14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=master01,kubernetes.io/os=linux,node-role.kubernetes.io/control-plane=,node-role.kubernetes.io/master=
node01     Ready    <none>                 14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,ingress=true,kubernetes.io/arch=amd64,kubernetes.io/hostname=node01,kubernetes.io/os=linux,memory=1000,test1=a,test3=b
node02     Ready    <none>                 14d   v1.20.15   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node02,kubernetes.io/os=linux,test2=b,xy102=98[root@master01 ingress]# kubectl apply -f mandatory.yaml [root@master01 ingress]# kubectl get pod -o wide -n ingress-nginx
NAME                             READY   STATUS    RESTARTS   AGE   IP               NODE     NOMINATED NODE   READINESS GATES
nginx-ingress-controller-p52jc   1/1     Running   0          11s   192.168.168.82   node01   <none>           <none>[root@node01 ingress]# curl www.xy102.com
curl: (7) Failed connect to www.xy102.com:80; 拒绝连接
[root@node01 ingress]# vim /etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6192.168.168.82 node01 www.xy102.com[root@node01 ingress]# curl www.xy102.com
123
[root@node01 ingress]# curl -L www.xy102.com/test1/test2
789
[root@node01 ingress]# curl -L www.xy102.com/test1
456

4、基于deployment+nodeport

[root@master01 ingress]# kubectl delete -f mandatory.yaml [root@master01 ingress]# vim mandatory.yaml190 apiVersion: apps/v1
191 kind: Deployment
192 #kind: DaemonSet
193 metadata:
194   name: nginx-ingress-controller
195   namespace: ingress-nginx
196   labels:
197     app.kubernetes.io/name: ingress-nginx
198     app.kubernetes.io/part-of: ingress-nginx
199 spec:
200   replicas: 1
201   selector:
202     matchLabels:
203       app.kubernetes.io/name: ingress-nginx
204       app.kubernetes.io/part-of: ingress-nginx
205   template:
206     metadata:
207       labels:
208         app.kubernetes.io/name: ingress-nginx
209         app.kubernetes.io/part-of: ingress-nginx
210       annotations:
211         prometheus.io/port: "10254"
212         prometheus.io/scrape: "true"
213     spec:
214       # wait up to five minutes for the drain of connections
215       terminationGracePeriodSeconds: 300
216       serviceAccountName: nginx-ingress-serviceaccount
217       nodeSelector:
218         kubernetes.io/os: linux
219 #      hostNetwork: true
220 #      nodeSelector:
221 #        ingress: "true"wget https://gitee.com/mirrors/ingress-nginx/raw/nginx-0.30.0/deploy/static/provider/baremetal/service-nodeport.yaml[root@master01 ingress]# kubectl apply -f mandatory.yaml [root@master01 ingress]# kubectl get pod -o wide -n ingress-nginx
NAME                                        READY   STATUS    RESTARTS   AGE     IP             NODE     NOMINATED NODE   READINESS GATES
nginx-ingress-controller-54b86f8f7b-4qszc   1/1     Running   0          2m15s   10.244.2.239   node02   <none>           <none>[root@master01 ingress]# kubectl get svc -o wide -n ingress-nginx
NAME            TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)                      AGE   SELECTOR
ingress-nginx   NodePort   10.96.183.19   <none>        80:31185/TCP,443:32676/TCP   19s   app.kubernetes.io/name=ingress-nginx,app.kubernetes.io/part-of=ingress-nginx[root@master01 ingress]# netstat -antp | grep 31185
tcp        0      0 0.0.0.0:31185           0.0.0.0:*               LISTEN      28697/kube-proxy [root@node01 ingress]# netstat -antp | grep 31185
tcp        0      0 0.0.0.0:31185           0.0.0.0:*               LISTEN      20187/kube-proxy  [root@node02 ingress]# netstat -antp | grep 31185
tcp        0      0 0.0.0.0:31185           0.0.0.0:*               LISTEN      44530/kube-proxy  [root@master01 ingress]# vim ingress-nginx1.yaml apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: nfs-pvc
spec:accessModes:- ReadWriteManystorageClassName: nfs-client-storageclassresources:requests:storage: 2Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:name: nginx-applabels:app: nginx
spec:replicas: 3selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginx:1.22ports:- containerPort: 80volumeMounts:- name: nfs-pvcmountPath: /usr/share/nginx/htmlvolumes:- name: nfs-pvcpersistentVolumeClaim:claimName: nfs-pvc
---
apiVersion: v1
kind: Service
metadata:name: nginx-deployment-svc
spec:type: ClusterIPports:- protocol: TCPport: 80targetPort: 80selector:app: nginx
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:name: nginx-deployment-ingress
spec:rules:- host: www.xy102.comhttp:paths:- path: /pathType: Prefix
#前缀匹配，匹配/ /test1 /test1/test2backend:
#匹配的svc的名称----podservice:name: nginx-deployment-svcport:number: 80[root@master01 ingress]# kubectl apply -f ingress-nginx1.yaml [root@master01 ingress]# curl www.xy102.com:31185
123

在这里插入图片描述

5、https

[root@master01 ingress]# mkdir https
[root@master01 ingress]# cd https/
[root@master01 https]# ls
[root@master01 https]# openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=CHINA/O=NJ" 
Generating a 2048 bit RSA private key
.............................+++
...+++
writing new private key to 'tls.key'
-----
##解释
openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=CHINA/O=NJ"req：表示指定证书请求和生成相关文件
-x509：生成自签名的x.509证书
-sha256：sha-256的散列算法
-nodes：生成的私钥不加密
-days 365: 证书的有效期为365天
-newkey rsa:2048：:表示使用RSA的密钥队，长度2048个单位
-keyout tls.key -out tls.cr：生成两个文件
-keyout 私钥保存到tls.key文件
-out 保存证书到tls.crt
-subj 添加证书的主题[root@master01 https]# kubectl create secret tls tls.secret --key tls.key --cert tls.crt[root@master01 https]# kubectl create secret tls（指定type） tls.secret --key（指定密钥） tls.key --cert（指定证书） tls.crt [root@master01 ingress]# vim ingress-nginx1.yaml55 apiVersion: networking.k8s.io/v156 kind: Ingress57 metadata:58   name: nginx-deployment-ingress59 spec:60   tls:61     - hosts:62       - www.xy102.com63       secretName: tls.secret64 #指定加密通信的域名，上下文一直，指定secret加密的名称，获取私钥和证书[root@master01 ingress]# kubectl apply -f ingress-nginx1.yaml
[root@master01 ingress]# curl -k https://www.xy102.com:32676
123

在这里插入图片描述

作业：

#daemonset+hostnetwork实现https访问。

[root@master01 ingress]# vim mandatory.yaml 190 apiVersion: apps/v1
191 #kind: Deployment
192 kind: DaemonSet
193 metadata:
194   name: nginx-ingress-controller
195   namespace: ingress-nginx
196   labels:
197     app.kubernetes.io/name: ingress-nginx
198     app.kubernetes.io/part-of: ingress-nginx
199 spec:
200 #  replicas: 1
201   selector:
202     matchLabels:
203       app.kubernetes.io/name: ingress-nginx
204       app.kubernetes.io/part-of: ingress-nginx
205   template:
206     metadata:
207       labels:
208         app.kubernetes.io/name: ingress-nginx
209         app.kubernetes.io/part-of: ingress-nginx
210       annotations:
211         prometheus.io/port: "10254"
212         prometheus.io/scrape: "true"
213     spec:
214       # wait up to five minutes for the drain of connections
215       terminationGracePeriodSeconds: 300
216       serviceAccountName: nginx-ingress-serviceaccount
217       nodeSelector:
218         kubernetes.io/os: linux
219       hostNetwork: true
220 #      nodeSelector:
221 #        ingress: "true"
222       containers:[root@master01 ingress]# kubectl apply -f mandatory.yaml [root@master01 ingress]# vim ingress-nginx1.yamlapiVersion: v1
kind: PersistentVolumeClaim
metadata:name: nfs-pvc
spec:accessModes:- ReadWriteManystorageClassName: nfs-client-storageclassresources:requests:storage: 2Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:name: nginx-applabels:app: nginx
spec:replicas: 3selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginx:1.22ports:- containerPort: 80volumeMounts:- name: nfs-pvcmountPath: /usr/share/nginx/htmlvolumes:- name: nfs-pvcpersistentVolumeClaim:claimName: nfs-pvc
---
apiVersion: v1
kind: Service
metadata:name: nginx-daemon-svc
spec:type: ClusterIPports:- protocol: TCPport: 80targetPort: 80selector:app: nginx
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:name: nginx-daemon-ingress
spec:tls:- hosts:- www.xy102.comsecretName: tls.secret
#指定加密通信的域名，上下文一直，指定secret加密的名称，获取私钥和证书rules:- host: www.xy102.comhttp:paths:- path: /pathType: Prefix
#前缀匹配，匹配/ /test1 /test1/test2backend:
#匹配的svc的名称----podservice:name: nginx-daemon-svcport:number: 80[root@master01 ingress]# kubectl apply -f ingress-nginx1.yaml 
persistentvolumeclaim/nfs-pvc created
deployment.apps/nginx-app created
service/nginx-daemon-svc unchanged
ingress.networking.k8s.io/nginx-daemon-ingress configured
[root@master01 ingress]# kubectl get pod -o wide -n ingress-nginx 
NAME                             READY   STATUS    RESTARTS   AGE     IP               NODE       NOMINATED NODE   READINESS GATES
nginx-ingress-controller-44ktd   1/1     Running   0          7m52s   192.168.168.83   node02     <none>           <none>
nginx-ingress-controller-ksjkr   1/1     Running   0          7m52s   192.168.168.81   master01   <none>           <none>
nginx-ingress-controller-z4lrr   1/1     Running   0          7m52s   192.168.168.82   node01     <none>           <none>##之前https已经创建
-----------------------------------------------------------------------------------------------------------------------------------
[root@master01 ingress]# mkdir https
[root@master01 ingress]# cd https/
[root@master01 https]# ls
[root@master01 https]# openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=CHINA/O=NJ" 
Generating a 2048 bit RSA private key
.............................+++
...+++
writing new private key to 'tls.key'
-----
##解释
openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=CHINA/O=NJ"req：表示指定证书请求和生成相关文件
-x509：生成自签名的x.509证书
-sha256：sha-256的散列算法
-nodes：生成的私钥不加密
-days 365: 证书的有效期为365天
-newkey rsa:2048：:表示使用RSA的密钥队，长度2048个单位
-keyout tls.key -out tls.cr：生成两个文件
-keyout 私钥保存到tls.key文件
-out 保存证书到tls.crt
-subj 添加证书的主题[root@master01 https]# kubectl create secret tls tls.secret --key tls.key --cert tls.crt[root@master01 https]# kubectl create secret tls（指定type） tls.secret --key（指定密钥） tls.key --cert（指定证书） tls.crt [root@master01 ingress]# vim ingress-nginx1.yaml55 apiVersion: networking.k8s.io/v156 kind: Ingress57 metadata:58   name: nginx-deployment-ingress59 spec:60   tls:61     - hosts:62       - www.xy102.com63       secretName: tls.secret64 #指定加密通信的域名，上下文一直，指定secret加密的名称，获取私钥和证书[root@master01 ingress]# kubectl apply -f ingress-nginx1.yaml
[root@master01 ingress]# curl -k https://www.xy102.com:32676
123----------------------------------------------------------------------------------------------------------------------------------[root@master01 ingress]# curl www.xy102.com
<html>
<head><title>308 Permanent Redirect</title></head>
<body>
<center><h1>308 Permanent Redirect</h1></center>
<hr><center>nginx/1.17.8</center>
</body>
</html>[root@k8s5 k8s]# cd default-nfs-pvc-pvc-6a14c29f-4ba6-48e2-9f22-bc3dee4b2feb/
[root@k8s5 default-nfs-pvc-pvc-6a14c29f-4ba6-48e2-9f22-bc3dee4b2feb]# ll
总用量 0
[root@k8s5 default-nfs-pvc-pvc-6a14c29f-4ba6-48e2-9f22-bc3dee4b2feb]# echo 123 > index.html[root@master01 ingress]# curl -Lk https://www.xy102.com
123[root@k8s5 default-nfs-pvc-pvc-6a14c29f-4ba6-48e2-9f22-bc3dee4b2feb]# mkdir test1
[root@k8s5 default-nfs-pvc-pvc-6a14c29f-4ba6-48e2-9f22-bc3dee4b2feb]# cd test1/
[root@k8s5 test1]# echo 456 > index.html[root@master01 ingress]# curl -Lk https://www.xy102.com/test1
456[root@master01 ingress]# curl -Lk https://www.xy102.com/test1/test2
789