How to customize envoy access log

[shenshanyoumu]

What question do you have?: I follow docs: [https://projectcontour.io/getting-started/] with Option 3: Contour Gateway Provisioner to install contour in projectcontour namespace it works well;

but when I follow below docs to customized envoy access logs, where is config file I can found? https://projectcontour.io/docs/main/config/access-logging/#customizing-access-log-format

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]

Environment:

• Contour version: 1.30
• Kubernetes version: (use kubectl version):
• Kubernetes installer & version:
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):