Tune Connection Draining for Apiserver ELB on AWS

Solution Verified - Updated -

Environment

  • Red Hat OpenShift Container Platform 4.x

Issue

  • Is it possible to allow the "Connection Draining" setting on the apiserver ELB to be tuned via OpenShift cluster configuration?
  • OpenShift is Dedicated as a build farm and makes heavy use of Binary sources in their builds. Without connection, and draining enabled, would be found that builds would fail to upload their source code on a regular basis.

Resolution

Currently, there is no supported way to enable ELB connection draining, ELB logging to S3, or changing the listeners on the ELB. Also, Connection draining is already implemented in the OpenShift router.

  • Question: Is it fine to change the below AWS's recommended settings?

  • Question: What impact can be expected by changing to AWS recommended settings?

    • RedHat only supports what is in the product documentation. As this is a third-party load balancer, these changes haven't test internally by RedHat.

  • Question: If Red Hat does not allow changes to the AWS recommended settings?

    • RedHat only supports what is in the product documentation. As this is a third-party load balancer, We recommend a cloud team from the customer side, have to check internally

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