@sctng Might want to check this post out also.
[Solved] Cannot configure API address: Unable to call https://172.24.0.4:9000/api/ - #12 by dimedrol
Healthcheck fails for graylog container, GRAYLOG_HTTP_PUBLISH_URI doesn't get set in graylog.conf - #5 by Eisscherge
Graylog 4.2.7 + docker compose + https = semi fail - #6 by nitrogene