修改 Nginx 网关的全局配置文件（ConfigMap）：
kubectl -n ingress-nginx edit cm ingress-nginx-controller
讲一下内容直接粘贴进去就行
data:
与后端Pod建立TCP连接超时
proxy-connect-timeout: "10"
读取后端响应间隔超时
proxy-read-timeout: "180"
向后端发送请求间隔超时
proxy-send-timeout: "180"
读取客户端请求头超时
client-header-timeout: "60"
读取客户端请求体超时
client-body-timeout: "60"
后端重试总超时
proxy-next-upstream-timeout: "10"
后端最大重试次数
proxy-next-upstream-tries: "3"
保持连接超时
keep-alive-timeout: "60"
kubectl -n ingress-nginx get po
kubectl -n ingress-nginx delete pod ingress-nginx-controller-68f66d946-26pl4
kubectl -n ingress-nginx edit cm ingress-nginx-controller
