the yaml

rate-limit-per-consumer.yaml

apiVersion: configuration.konghq.com/v1
kind: KongConsumer
metadata:
  name: consumer1
  namespace: nginx-kong-test
username: consumer1

---
apiVersion: configuration.konghq.com/v1
kind: KongConsumer
metadata:
  name: consumer2
  namespace: nginx-kong-test
username: consumer2

---
apiVersion: configuration.konghq.com/v1
kind: KongCredential
metadata:
  name: credential1
  namespace: nginx-kong-test
consumerRef: consumer1
type: key-auth
config:
  key: "111"

---
apiVersion: configuration.konghq.com/v1
kind: KongCredential
metadata:
  name: credential2
  namespace: nginx-kong-test
consumerRef: consumer2
type: key-auth
config:
  key: "222"

---
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: key-auth-consumer1
  namespace: nginx-kong-test
disabled: false
consumerRef: consumer1
plugin: key-auth
config:
  hide_credentials: true

---  
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: key-auth-consumer2
  namespace: nginx-kong-test
disabled: false
consumerRef: consumer2
plugin: key-auth
config:
  hide_credentials: true

---
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: rl-consumer1
  namespace: nginx-kong-test
enabled: true
consumerRef: consumer1
config:
  second: 1
plugin: rate-limiting

---
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: rl-consumer2
  namespace: nginx-kong-test
enabled: true
consumerRef: consumer2
config:
  second: 10
plugin: rate-limiting