20201215 kubernetes (三)

課堂資訊

kubernetes系列09—Ingress控制器详解 - alonghub - 博客园

kubernetes - 如何修复 "503 Service Temporarily Unavailable" - IT工具网

Proxy Server	Proxy
正向代理伺服器	客戶端
反向代理伺服器	服務器

Ingress

工作示意圖

課堂練習

Ingress

vm1

創建部署

cd test-ingress-nginx

kubectl apply -f mandatory.yaml

kubectl apply -f service-nodeport.yaml

ls

gedit service-nodeport.yaml mandatory.yaml &

kubectl get deployment

kubectl get deployment -n ingress-nginx

kubectl get svc -n ingress-nginx

kubectl get pods -n ingress-nginx

創建 Ingress，代理到後端 nginx 服務

kubectl get deployment

kubectl delete deployment myweb

kubectl delete svc myweb

kubectl get svc

kubectl apply -f httpd.yaml

gedit httpd.yaml

kubectl get deployment

kubectl get svc

gedit ingress-httpd.yaml

modifyserviceName tohttpd

curl [httpd_CLUSTER-IP]

kubectl apply -f ingress-httpd.yaml

kubectl get ingress

kubectl get svc

kubectl get pod -n ingress-nginx

kubectl get pod -n ingress-nginx -o wide

modifyC:\Windows\System32\drivers\etc 中的hosts

192.168.8.130          www.a.com
192.168.8.131          www.a.com

kubectl get pod

kubectl get pod -o wide

kubectl exec [vm3_httpdName] -it -- bash

cd htdocs/

echo "vm3 www.a.com" > hi.htm

ls

exit

kubectl exec [vm2_httpdName] -it -- bash

cd htdocs/

echo "vm2 www.a.com" > hi.htm

ls

exit

cp httpd.yaml httpd2.yaml

cp ingress-httpd.yaml ingress-httpd2.yaml

gedit httpd2.yaml ingress-httpd2.yaml

kubectl apply -f httpd2.yaml

kubectl apply -f ingress-httpd2.yaml

kubectl get ingress

kubectl get pod

kubectl exec [http2_Name] -it -- bash

cd htdocs/

echo "www.b.com" > hi.htm

Deployment

kubectl get deployment

kubectl describe deployment httpd

kubectl get replicaset

kubectl get deployment httpd2

kubectl edit deployment httpd2

cd

ls

kubectl apply -f cronjob.yml

kubectl get pod

cat cronjob.yml

kubectl get pod -o wide