GSoC'20 Report- CNCF(Prometheus)

Introduction

Hello everyone, I am here to present my GSoC 2020 report under CNCF. My contributions/work can be viewed at prometheus/test-infra and prombench.prometheus.io. Also I will be continuing my contributions after the GSoC period

I would like to give a huge thanks to my mentor, who continuously helped me to complete this awesome journey.

Links:

• My Evaluations:

  • First Evaluation
  • Second Evaluation
  • Final Evaluation

• GSoC Project URL
  https://summerofcode.withgoogle.com/archive/2020/projects/4546170073907200/

• CNCF Blog Post
  https://www.cncf.io/blog/2020/09/17/16-cncf-interns-graduate-from-summer-of-code-gsoc-2020/

• Certificate
  Completion_2020_0234.pdf

• Completion Letter
  GSoC 2020 Certificate GSoC20200234.pdf

What did I solve?

1. Develop prometheus benchmark infrastructure with KIND

   Description: Currently, prombench is deployed on GKE which takes a lot of time and resources. To overcome this we got a solution to use KIND for deployment of prombench on local/virtual machine, which is very fast as compared to GKE and useful to run it locally.

   • Issue(s): prometheus/test-infra/issue#333
   • PR(s): prometheus/test-infra/pull#390

2. Refactor prombench infrastructure and manifest deployable for KIND and EKS.

   Description: Due to the tightly coupled of prombench with GKE, we have to refactor both infra and manifests to make it more generic and deployable for both EKS and KIND.

   • Issue(s): prometheus/test-infra/issue#371
   • PR(s):
     • prometheus/test-infra/pull#412
     • prometheus/test-infra/pull#406
     • prometheus/test-infra/pull#391
     • prometheus/test-infra/pull#371
     • prometheus/test-infra/pull#369

3. Fix Node Exporter to show the metrics related to SSD

   Description: Node Exporter is not showing metrics related to SSD. To fix this we need to upgrade node exporter and add a new flag called “--path.rootfs”

   • Issue(s):

     • prometheus/test-infra/issue#159
     • prometheus/test-infra/issue#328

   • PR(s): prometheus/test-infra/pull#408

4. Add descriptions to the Grafana dashboard regarding prombench

   Description: Current Grafana dashboard is not having the descriptions of prombench, which will be difficult for a new user to understand.

   • Issue(s):
     • prometheus/test-infra/issue#328
     • prometheus/test-infra/issue#305
   • Doc(s): Descriptions for Prombench Graphana Dashboard
   • PR(s): prometheus/test-infra/pull#428

5. Increase Retention period of loki to 90 days

   Note: This task is not a priority, so I will complete it after the gsoc period. BTW, a PR has been raised to solve this issue.

   • Issue(s):
     • prometheus/test-infra/issue#322
     • prometheus/test-infra/issue#328
   • PR(s): prometheus/test-infra/pull#423

Extra fixes

1. PR: prometheus/test-infra/pull#432
2. PR: prometheus/test-infra/pull#433

What did I learn?

1. First and most important- Architecture of Prometheus and infrastructure of prombench
2. Good maintenance of code repository
3. KIND(Kubernetes In Docker) architecture and usage of its go pkg.
4. Have patience for PR reviews 😃

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