Still need client certificate even when set authenticatePeer: no

Issue

I am deploying the AMQ Interconnect on ocp env, I followed [Deploying AMQ Interconnect on OpenShift Container Platform]
(https://access.redhat.com/documentation/en-us/red_hat_amq/7.3/html-single/deploying_amq_interconnect_on_openshift_container_platform/index)
and deployed amq-interconnect-1-tls-auth.yaml, but I found even set the authenticatePeer: no , looks like the server still need the client certificate, log as below:

2020-03-03 14:02:18.671505 +0000 SERVER (info) [C6] Accepted connection to 0.0.0.0:amqps from 10.129.0.1:41672
2020-03-03 14:02:19.165936 +0000 SERVER (info) [C6] Connection from 10.129.0.1:41672 (to 0.0.0.0:amqps) failed: amqp:connection:framing-error SSL Failure: error:140890C7:SSL routines:ssl3_get_client_certificate:peer did not return a certificate

listener {
    host: 0.0.0.0
    port: amqps
    sslProfile: service_tls
    authenticatePeer: no
    requireSsl: true
    saslMechanisms: EXTERNAL
}