create-cluster.sh produces error "field dnsSearch not found in type v1alpha4.Networking"

[candita]

Description:

The create-cluster.sh includes a configuration item (dnsSearch) that doesn't exist for the Cluster apiVersion.
https://github.com/envoyproxy/gateway/blob/main/tools/hack/create-cluster.sh#L25-L27

Repro steps:

create-cluster.sh will fail to create a cluster, with the output:

ERROR: failed to create cluster: unable to decode config: yaml: unmarshal errors:
line 8: field dnsSearch not found in type v1alpha4.Networking

Removing dnsSearch from Cluster.networking fixes it.

Environment:

main branch

[zirain]

this's used for avoid some issue on ipv6 cluster, and it worked as expected.
can you share more details about when this happen?

[candita]

This happens on an ipv4 cluster, kind version 0.14.0. Perhaps this version of kind doesn't yet have the API update for dnsSearch.

[zirain]

the script should use kind binary in tools/bin/kind, which should be built from v0.25.0.