Tooling display Error while SSL handshake: javax.net.ssl.SSLException: Received fatal alert: certificate_unknown

[jorgesanmartin]

Description:
We configured System Integrator (version 7.0) in minimum HA (docker). We also deployed a tooling container. The deployment.yaml contains the following configuration for business rules deployment
so2.business.rules.manager:
datasource: BUSINESS_RULES_DB

rule template wise configuration for deploying business rules

deployment_configs:
-
# : of the Worker node
lb-cesp:9443:
# UUIDs of rule templates that are needed to be deployed on the node
- stock-data-analysis
- stock-exchange-input
- stock-exchange-output
- identifying-continuous-production-decrease
- popular-tweets-analysis
- http-analytics-processing
- message-tracing-source-template
- message-tracing-app-template

credentials for worker nodes

username: admin
password: admin

Everything seems to work fine using the business-rule manager portal but we have many error logs in tooling container displaying this information:
ERROR {org.wso2.transport.http.netty.contractimpl.listener.SslHandshakeCompletionHandlerForServer} - Error while SSL handshake: javax.net.ssl.SSLException: Received fatal alert: certificate_unknown

Affected Product Version:
7.0.0
OS, DB, other environment details and versions:
docker on Linux
Steps to reproduce:

1. Deploy system integrator
2. Configure tooling with so2.business.rules.manager -> deployment_configs -> :9443

Related Issues: