k8s使用ingress-nginx負(fù)載均衡的示例分析

本篇文章給大家分享的是有關(guān)k8s使用ingress-nginx負(fù)載均衡的示例分析，小編覺得挺實(shí)用的，因此分享給大家學(xué)習(xí)，希望大家閱讀完這篇文章后可以有所收獲，話不多說(shuō)，跟著小編一起來(lái)看看吧。

創(chuàng)新互聯(lián)建站是一家以網(wǎng)絡(luò)技術(shù)公司，為中小企業(yè)提供網(wǎng)站維護(hù)、網(wǎng)站建設(shè)、成都做網(wǎng)站、網(wǎng)站備案、服務(wù)器租用、國(guó)際域名空間、軟件開發(fā)、微信小程序開發(fā)等企業(yè)互聯(lián)網(wǎng)相關(guān)業(yè)務(wù)，是一家有著豐富的互聯(lián)網(wǎng)運(yùn)營(yíng)推廣經(jīng)驗(yàn)的科技公司，有著多年的網(wǎng)站建站經(jīng)驗(yàn)，致力于幫助中小企業(yè)在互聯(lián)網(wǎng)讓打出自已的品牌和口碑，讓企業(yè)在互聯(lián)網(wǎng)上打開一個(gè)面向全國(guó)乃至全球的業(yè)務(wù)窗口：建站聯(lián)系電話：18980820575

ingress-nginx負(fù)載均衡調(diào)用順序:用戶--->ingress-nginx(pod)--->ingress-nginx(控制器)--->ingress--->service--->pod

1.下載安裝ingress-nginx(七層調(diào)度器)

https://kubernetes.github.io/ingress-nginx/deploy/ --詳細(xì)文檔

https://github.com/kubernetes/ingress-nginx/tree/master/deploy --ingress-nginx的yaml文件

[root@k8s1 ~]# kubectl explain ingress --幫助信息

[root@k8s1 ~]# vim /etc/sysconfig/kubelet --啟用ipvs功能(service負(fù)載均衡有三種userspace,iptables,ipvs)

KUBE_PROXY_MODE=ipvs --添加參數(shù)

[root@k8s1 ~]# kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/mandatory.yaml

[root@k8s1 ~]# kubectl get pods -n ingress-nginx

NAME READY STATUS RESTARTS AGE

nginx-ingress-controller-68db76b4db-pqcl7 0/1 ContainerCreating 0 35s

[root@k8s1 ~]# kubectl get pods -n ingress-nginx

NAME READY STATUS RESTARTS AGE

nginx-ingress-controller-68db76b4db-pqcl7 1/1 Running 0 9m20s

[root@k8s1 ~]#

2.創(chuàng)建service控制器和后端三個(gè)pod

[root@k8s1 ~]# vim service-pod.yaml

kind: Service

metadata:

namespace: ingress-nginx

spec:

selector:

app: ingress-nginx --與下面的pod保持一至

release: canary

ports:

- name: http

targetPort: 80

port: 80

---

apiVersion: apps/v1

kind: Deployment

metadata:

namespace: ingress-nginx

spec:

replicas: 3

selector:

matchLabels:

app: ingress-nginx --與上面的service保持一至

release: canary

template:

metadata:

labels:

app: ingress-nginx --與上面的service保持一至

release: canary

spec:

containers:

- name: ingress-nginx --與上面的service保持一至

image: ikubernetes/myapp:v1

ports:

- name: http

containerPort: 80

[root@k8s1 ~]# kubectl apply -f service-pod.yaml

service/ingress-nginx created

deployment.apps/myapp-deploy-ng created

[root@k8s1 ~]# kubectl get pods -o wide -n ingress-nginx

NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES

myapp-deploy-ng-65d64df569-5f9l2 1/1 Running 0 9m6s 10.244.2.9 k8s3 <none> <none>

myapp-deploy-ng-65d64df569-n288f 1/1 Running 0 9m6s 10.244.1.76 k8s2 <none> <none>

myapp-deploy-ng-65d64df569-vnrj5 1/1 Running 0 9m6s 10.244.1.77 k8s2 <none> <none>

nginx-ingress-controller-68db76b4db-d2h75 1/1 Running 0 18d 10.244.2.240 k8s3 <none> <none>

[root@k8s1 ~]# kubectl get svc -n ingress-nginx

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE

ingress-nginx ClusterIP 10.99.27.16 <none> 80/TCP 20s

3.創(chuàng)建service-nodeport

[root@k8s1 ~]# wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/provider/baremetal/service-nodeport.yaml

[root@k8s1 ~]# vim service-nodeport.yaml

apiVersion: v1

kind: Service

metadata:

namespace: ingress-nginx

spec:

type: NodePort

ports:

- name: http

port: 80

targetPort: 80

protocol: TCP

nodePort: 30880

- name: https

port: 443

targetPort: 443

protocol: TCP

nodePort: 30443

selector:

app: ingress-nginx

[root@k8s1 ~]# kubectl apply -f service-nodeport.yaml

service/ingress-nginx configured

[root@k8s1 ~]# kubectl get svc -n ingress-nginx

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE

ingress-nginx NodePort 10.99.27.16 <none> 80:30880/TCP,443:30443/TCP 11h

[root@k8s1 ~]# kubectl describe svc ingress-nginx -n ingress-nginx

Name: ingress-nginx

Namespace: ingress-nginx

Labels: <none>

Annotations: kubectl.kubernetes.io/last-applied-configuration:

{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"name":"ingress-nginx","namespace":"ingress-nginx"},"spec":{"ports":[{"na...

Selector: app=ingress-nginx

Type: NodePort

IP: 10.99.27.16

Port: http 80/TCP

TargetPort: 80/TCP

NodePort: http 30880/TCP

Endpoints: 10.244.1.76:80,10.244.1.77:80,10.244.2.9:80 --后端代理的三個(gè)pod地址

Port: https 443/TCP

TargetPort: 443/TCP

NodePort: https 30443/TCP

Endpoints: 10.244.1.76:443,10.244.1.77:443,10.244.2.9:443

Session Affinity: None

External Traffic Policy: Cluster

Events: <none>

[root@k8s1 ~]# curl http://172.16.8.12:30880

4.創(chuàng)建ingress控制器

[root@k8s1 ~]# cat ingress.yaml

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

namespace: default

annotations:

kubernetes.io/ingress.class: "nginx"

spec:

rules:

- host: myapp.magedu.com --域名

http:

paths:

- path:

backend:

serviceName: ingress-nginx --service名字

servicePort: 80

[root@k8s1 ~]# kubectl apply -f ingress.yaml

ingress.extensions/ingress-myapp created

[root@k8s1 ~]# kubectl get ingress

NAME HOSTS ADDRESS PORTS AGE

ingress-myapp myapp.magedu.com 80 4s

[root@k8s1 ~]# kubectl describe ingress ingress-myapp --查看ingress-myapp詳細(xì)信息

[root@k8s1 ~]# kubectl get pods -n ingress-nginx

NAME READY STATUS RESTARTS AGE

nginx-ingress-controller-68db76b4db-d2h75 1/1 Running 0 18d

[root@k8s1 ~]# kubectl exec -n ingress-nginx -it nginx-ingress-controller-68db76b4db-d2h75 -- /bin/sh

5.訪問(wèn)web站點(diǎn)

[root@k8s1 ~]# curl http://172.16.8.12:30880/hostname.html --返回的結(jié)果就是三個(gè)pod的主機(jī)名

myapp-deploy-ng-65d64df569-5f9l2

[root@k8s1 ~]# curl http://172.16.8.12:30880/hostname.html

myapp-deploy-ng-65d64df569-5f9l2

[root@k8s1 ~]# curl http://172.16.8.12:30880/hostname.html

myapp-deploy-ng-65d64df569-vnrj5

[root@k8s1 ~]# curl http://172.16.8.12:30880/hostname.html

myapp-deploy-ng-65d64df569-vnrj5

[root@k8s1 ~]# curl http://172.16.8.12:30880/hostname.html

myapp-deploy-ng-65d64df569-n288f

[root@k8s1 ~]#

以上就是k8s使用ingress-nginx負(fù)載均衡的示例分析，小編相信有部分知識(shí)點(diǎn)可能是我們?nèi)粘９ぷ鲿?huì)見到或用到的。希望你能通過(guò)這篇文章學(xué)到更多知識(shí)。更多詳情敬請(qǐng)關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。

文章標(biāo)題：k8s使用ingress-nginx負(fù)載均衡的示例分析
網(wǎng)站鏈接：http://muchs.cn/article48/jpghhp.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供云服務(wù)器、品牌網(wǎng)站建設(shè)、域名注冊(cè)、自適應(yīng)網(wǎng)站、、網(wǎng)站營(yíng)銷

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如需處理請(qǐng)聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來(lái)源：創(chuàng)新互聯(lián)

猜你還喜歡下面的內(nèi)容