Kubernetes nginx ingress rabbitmq management and kibana

What you need to do is set the basePath for kibana to /kibana

See the below url

https://www.elastic.co/guide/en/kibana/current/settings.html

You are looking to configure server.basePath to /kibana. Then this will sort the reverse proxying issues and you can keep the MQ one directly on root /

You can also set SERVER_BASEPATH environment variable in your kibana pod and it will automatically pick the base path from that variable