k8s: ingress-nginx

[dushaoshuai]

https://github.com/kubernetes/ingress-nginx/issues/6335#issuecomment-1173134608

[dushaoshuai]

配置：

• https://github.com/kubernetes/ingress-nginx/tree/45f71d5a164b622e66c54839c6d5e14412a9fc1d/docs/user-guide/nginx-configuration
• https://github.com/kubernetes/ingress-nginx/tree/main/docs/examples/customization/custom-headers

[dushaoshuai]

获取原始客户端IP：

• https://github.com/kubernetes/ingress-nginx/blob/45f71d5a164b622e66c54839c6d5e14412a9fc1d/docs/user-guide/nginx-configuration/configmap.md#use-forwarded-headers
• https://github.com/kubernetes/ingress-nginx/blob/45f71d5a164b622e66c54839c6d5e14412a9fc1d/rootfs/etc/nginx/template/nginx.tmpl#LL1374C15-L1374C15
• https://docs.nginx.com/nginx/admin-guide/load-balancer/using-proxy-protocol/

[dushaoshuai]

ingress-nginx 的 nginx 模版：https://github.com/kubernetes/ingress-nginx/blob/main/rootfs/etc/nginx/template/nginx.tmpl