支持k8s nginx ingress 默认的 X-Request-Id 透传 Spring boot，dubbo，
Nginx-ingress generate-request-id :https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#generate-request-id
通过环境变量将 Pod 信息呈现给容器: https://kubernetes.io/zh-cn/docs/tasks/inject-data-application/environment-variable-expose-pod-information/