How to improve Jenkins Pipelines overall performance on OpenShift?

Solution Verified - Updated -

Issue

  • Jenkins Pipelines are taking too long to finish
  • Every time an application build is running inside a Jenkins slave, all libraries have to be downloaded from the central repository
  • Builds inside Jenkins slaves are taken too long to to
  • There are a lot of Jenkins slaves pods in running state but actually not building anything
  • How to increase Jenkins executor queue?
  • How to increase Jenkins master resources?
  • How to increase Jenkins slaves resources?
  • Is it possible to add a volume to multiple Jenkins slaves?

Environment

  • Red Hat OpenShift Container Platform
    • 3.x

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