two kong in k8s, the second kong failed with no configuration available

[yuchao-java]

I deployed kong3.4 + Kong-ingress-Controller2.12 in k8s from the file:https://raw.githubusercontent.com/Kong/kubernetes-ingress-controller/v2.12.0/deploy/single/all-in-one-dbless.yaml, and it worked.
For the needs of two kongs, I removed the sections of Service and Deployment from the file, then I changed the resource name from kong-1 to kong-2, and it failed to start with no configuration available.
The status is as follows:
NAME READY STATUS
kong-1-5b8ccd7dcb-thvx6 1/1 Running
kong-1-controller-7c87cbb498-z47wl 1/1 Running
kong-2-5f79c64ff7-jnppb 0/1 Running
kong-2-controller-6788658bbb-9gglg 1/1 Running

When I curl pod ip:8100/status/ready
kong-1 pod returns: {"message":"ready"}
kong-2 pod returns: {"message":"no configuration available (empty configuration present)"}

It confused me, can anyone give me some help？