pbertera / ocp-perfinsights

Running Azure PerfInsights toosl on OpenShift nodes

OpenShift PerfInsights

Executing the Microsoft Azure PerfInsights diagnostic tools on an OpenShift CoreOS node can be cumbersome. This repo contains some facilities to help running the tools.

Usage

This repo contains a containerized version of the Linux PerfInsights tools.

Directly on the nodes

You can execute the tools manually on the OCP node:

1. Log into the node via SSH or oc debug/node $NODE
2. Execute chroot /host
3. Clone the repo: cd /tmp ; git clone https://github.com/pbertera/ocp-perfinsights.git ; cd ocp-perfinsights
4. Run the tools: ./run.sh -d 10M -r quick -a -q -o /tmp/report/

Using a CronJob

With the CronJob you can run the Linux PerfInsights tools periodically on one or more nodes and collect the reports in a PV. All the needed manifests are under the manifests folder, please review then before applying.

• perfinsights-rbac.yaml configures the RBAC in order to run a privileged pod
• perfinsights-pvc.yaml creates the PVC (adapt it to your needs)
• perfinsights-cronjob.yaml creates the CronJob, you may want to adjust the node selector, schedule and args.
• perfinsights-consumer-pod.yaml creates a dummy Pod mounting the volume so you can copy the reports

Disclaimer

This is not an officially supported tool by Red Hat, nor Microsoft.