How to set max-post-size for undertow listeners in kie-server running on OCP4

Solution Verified - Updated -

Issue

  • How to increase max-post-size in OpenShift environment?

  • The rule execution on kie-server in OpenShift from KieServicesClient fails with the following error:

    org.kie.server.api.exception.KieServicesHttpException: Unexpected HTTP response code when requesting URI 'http://OPENSHIFT_HOST/services/rest/server/containers/instances/rh-rules_1.0.0-SNAPSHOT'! Error code: 400, message: io.undertow.server.RequestTooBigException: UT000020: Connection terminated as request was larger than 10485760

  • According to A large post request fails with "UT000020: Connection terminated as request was larger than ###" in JBoss EAP 7.x the solution is to increase max-post-size, how to do it on Openshift environment?

Environment

  • Red Hat Decision Manager
    • 7.10 and later
  • Red Hat ProcessAutomation Manager
    • 7.10 and later
  • Business Automation Operator
  • OpenShift Container Platform 4

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