What's the usage of get_macos_ipaddress? Why necessary in mac?

[vie-serendipity]

Please provide an in-depth description of the question you have: This might be a newbie question. I want to know why get_macos_ipaddress is necessary in macos? What's the difference between linux and macos in this aspect? https://github.com/karmada-io/karmada/blob/bf2a6044a0de3a6219933dbd029e005cfaf7569c/hack/util.sh#L667C1-L669C39

What do you think about this question?:

Environment:

• Karmada version:
• Kubernetes version:
• Others:

[XiShanYongYe-Chang]

/cc @lfbear @chaosi-zju

[chaosi-zju]

I am not much clear about the backgroud of get_macos_ipaddress.

But, the network does make a difference between linux and macos, you can refer to

• https://github.com/docker/for-mac/issues/2670
• https://stackoverflow.com/questions/69143270/cannot-access-docker-host-from-macos

That is, unlike Docker on Linux, Docker for macOS does not expose container networks directly on the macOS host.

• Linux: linux host ----(docker0 interface)----> docker container networks
• MacOS: mac host ----> Virtual Machine ----(docker0 interface)----> docker container networks

However, I am not sure the get_macos_ipaddress function is a common way to resolve this problem, after all, if you use docker-mac-net-connect, you can mask the difference between the two on this issue.

[vie-serendipity]

@chaosi-zju I got it, thanks.