O.s.cloud.commons.util.inetutils Cannot Determine Local Hostname -

spring: cloud: inetutils: default-hostname: my-service-01 Or via JVM argument:

If you’ve ever worked with Spring Cloud, particularly in Docker, Kubernetes, or custom network environments, you might have stumbled upon this frustrating warning or error during application startup: particularly in Docker

hostname cat /etc/hosts | grep $(hostname) ip addr show If the second command returns nothing, your machine doesn't know its own hostname. Fix 1: Set a Preferred Network Interface (Recommended) Tell Spring Cloud exactly which interface or address to use: or custom network environments

spring: cloud: inetutils: ignored-interfaces: - docker0 - veth.* - utun.* # For macOS VPN interfaces When you don't care about dynamic resolution and just want the error gone: particularly in Docker

Resolving "InetUtils Cannot Determine Local Hostname" in Spring Cloud Commons

-Dspring.cloud.inetutils.default-hostname=my-service-01 Docker Compose Add a hostname entry to your service: