Open /etc/murano-conductor/conductor.conf and configure rabbitmq section in the same way: enable ssl option to True and set CA certificate path or leave it empty to allow self-signed certificates.
[rabbitmq]
# Use SSL for RabbitMQ connections (True or False)
ssl = True
# Path to SSL CA certificate or empty to allow self signed server certificate
ca_certs = /home/user/certificates/example.crt
