macos port 5000 already in use by Airplay Receiver

[BennyDeeDev]

Describe the bug

ERROR: failed to create cluster: command "docker run --name kind-worker --hostname kind-worker --label io.x-k8s.kind.role=worker --privileged --security-opt seccomp=unconfined --security-opt apparmor=unconfined --tmpfs /tmp --tmpfs /run --volume /var --volume /lib/modules:/lib/modules:ro -e KIND_EXPERIMENTAL_CONTAINERD_SNAPSHOTTER --detach --tty --label io.x-k8s.kind.cluster=kind --net kind --restart=on-failure:1 --init=false --publish=0.0.0.0:5000:5000/TCP --publish=0.0.0.0:10000:10000/TCP --publish=0.0.0.0:10001:10001/TCP kindest/node:v1.24.0@sha256:0866296e693efe1fed79d5e6c7af8df71fc73ae45e3679af05342239cdc5bc8e" failed with error: exit status 125
Command Output: 28ef95724a4daf43b462efdb8076fff0b7b28c3a0d6f0a22064a031634cc6ff3
docker: Error response from daemon: Ports are not available: exposing port TCP 0.0.0.0:5000 -> 0.0.0.0:0: listen tcp 0.0.0.0:5000: bind: address already in use.

I don't know if its really a bug, but when installing a thundernetes cluster with kind on macos I encountered that the port 5000 is already used by airplay.

For now I disabled airplay receiver like this:
https://developer.apple.com/forums/thread/682332

To Reproduce
Steps to reproduce the behavior:
kind create cluster --config /path/to/kind-config.yaml

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
- role: worker
  extraPortMappings:
  - containerPort: 5000
    hostPort: 5000
    listenAddress: "0.0.0.0"
    protocol: tcp
  - containerPort: 10000
    hostPort: 10000
    listenAddress: "0.0.0.0"
    protocol: tcp
  - containerPort: 10001
    hostPort: 10001
    listenAddress: "0.0.0.0"
    protocol: tcp

Desktop:

• OS: macOS Monterey
• Version: 12.5

[dgkanatsios]

Thanks for reporting this! We should definitely document how to change the port, apologies for the inconvenience! Keeping this issue open so we can work on this.

[snobu]

I can confirm 5000/TCP is in use on my Monterey as well.
Maybe we should pick a different port by default?
Something that's not on this list would have a good chance at being available -
https://www.liquisearch.com/list_of_tcp_and_udp_port_numbers/registered_ports

[dgkanatsios]

this was partially fixed in #419. It would be great if we could customize the port via Makefile though, so leaving this open