June 14, 2022

Extending on my earlier post about the Kubernetes Release Team

I’m serving as the Enhancements Role Lead for the current Kubernetes 1.25 Release Team.

As a role lead this time, I have a group of five outstanding shadows that I am not only mentoring to become future leads, but I am also learning from them - both “how to teach” and “how to learn”

I haven’t posted in a...

Sept 3, 2021

👋 A very quick update!

I’m serving as a shadow on the Enhancements team for the current Kubernetes 1.23 release.

Most of the work for Enhancements team, i.e shepherding features for the current Kubernetes release cycle and maintaining the status of Kubernetes Enhancements Proposals or KEP(s), happens right at the beginning of the release.

As of today, we’re already 2 weeks into the current release cycle....

Aug 17, 2021

Contents

• Introduction
• Steps to add a new check
• Steps to verify the new check

Introduction

The following document demonstrates the steps followed while adding a new validation check in the upstream kube-linter project.

KubeLinter is a static analysis tool that checks Kubernetes YAML files and Helm charts to ensure the applications represented in them adhere to best practices.

_{kube-linter GitHub Project}

August 16, 2021

GitHub Project link: https://github.com/Priyankasaggu11929/ansible-k8s-cluster-deploy

Contents

• Introduction
• Prerequistes
• Project description
• Instructions to provision the cluster

Introduction

The following document demonstrates the process and the steps followed, to configure a Kubernetes cluster, on AWS EC2 instances.

I have used Ansible playbooks to automate the provisioning of AWS EC2 instances, the security-group & key pairs, and the further process of initiating & bootstrapping...

August 03, 2021

While working on a side project yesterday, I was reading through the Pod manifests for some services. And one of the fields, I read there was qosClass: BestEffort.

I might be very ignorant before (as I never paid attention to this), but I wanted to understand what this QoS class (or Quality of Service class) meant.

So, yea below is what I understood & it is a very easy concept....

July 26, 2021

Last friday, I attended a kubernetes #in-dev community session around the Cluster API (CAPI) project.

This was my very first time knowing what CAPI project is about (although, I’ve come across the name quite a lot of times before). And well, I found it to be a very interesting one for me. The reason being CAPI is a project, a tooling that helps with managing cluster infrastructure as declarative configuration....

July 25, 2021

On my local machine, I use a starship cross-shell prompt setup on top of bash (which I truly find as a very handy tool!)

So, as part of my day to day work, I require to spin up or connect to multiple kubernetes & OpenShift clusters at a time. Although starship has an inbuilt kubernetes module, to dynamically configure the shell prompt based on the currently active kubernetes cluster,...

June 27, 2021

Very quick notes from this previous week:

sig-arch KEP reading club community meeting

I followed up with the recording of the recent (and the second) sig-arch KEP reading club community meeting. I couldn’t join it live ( but for someone who want to join, it happens every 2nd week, on Monday from 8:30 – 9:30 PM IST tz. Subscribe to sig-arch mailing list for invite!).

June 20, 2021

Very quick notes from this previous week:

passed Red Hat certified specialist in OpenShift Administration exam

This is what all I did for this last whole week (mostly).

• Prepared for the Red Hat Certified Specialist in OpenShift Administration (EX280V45K) exam.
• Appeared first time on June 15, 2021 (Tuesday) & failed with a very not so good score.
• Re-appeared on June 18, 2021 (Friday) & passed this time with...

June 14, 2021

A few days back, I had a small, very useful conversation with a friend from the community. We were discussing, How to ask someone for a 1:1 (learning or mentoring) session?

This is what I do! ⬇️

(and so, I’m putting the raw conversation below, just that I feel this might help someone else too, who are like me. 🙂)

June 10, 2021

(Thursdays are the weekly 1:1 meetings with dims. You could find the agenda document here)

Today’s meeting was a discussion in continuation to this previous blog, where I wrote about dims giving me a walkthrough of the k8s testgrid dashboard.

As a takeaway, I had left for myself a home-work exercise in the end of that discussion. Below is where I’m trying to take notes of what I learnt...

June 9, 2021

Quick notes from today:

brainstormed on proposing the plural version for klog.KObj

• Couple of weeks back, I had picked up this issue Propose plural version for klog.KObj #102434 as part of a requirement in the structured logging migration work. Although, I didn’t assign the issue then, to myself because I wasn’t quite sure about the blueprint (structure of input arguments, & the output format) for this intended new function
...

June 2, 2021

Quick notes from today:

worked on PR reviews on the watch request handler server side & client side timeout settings docs

• Not much I did, other than rephrasing & removing & discussing more on some sections of docs in the PR ~ add documentation for the server & client side timeout #1467, as part of the review suggestions.

  Ok, that’s still some substantial work, so fine!

• ...

May 31, 2021

Quick notes from today:

documenting server side & client side connection timeout settings, for the watch request handler!

• Re-started working on this long pending PR ~ add documentation for the server & client side timeout #1467, on the kubernetes-client/python project. The documentation provides information for the server-side & client-side connection timeout settings for the client’s watch request handler method. There were review comments on the PR, pointing...

May 27, 2021

Quick notes from today:

k8s prow jobs testgrid walkthrough

[The meeting notes are in this google document]

• During today’s 1:1 Thursday meeting with dims, he very kindly walked me through the testGrid for different prow ci job under the k8s project.
• Below are most of the things (I guess all, if I’m really not missing any more) that I learnt:
  • How to point to the prow...

May 26, 2021

Quick notes from today:

reviewed KEP-281 ~ Dynamic Kubelet Configuration

• As part of my weekly regular exercises for getting really up-to-date with what’s going on in the kubernetes enhancements area, I try to read one KEP, per week. This time, I have picked up ~ KEP-281: Dynamic Kubelet Configuration.
  • Major points from the KEP:
    • Dynamic Kubelet Configuration allows a new Kubelet configurations to...

May 24, 2021

Quick notes from today:

day of learning ~ learning how to create k8s go operators using operator-sdk

• Last friday (May 21, 2021) was a Day of Learning (DOL) for APAC teams at Red Hat. Jose Cueto and I (as suggested by Jose) decided to explore how to write kubernetes go operators using the operator-sdk framework.
• Putting the following links (that Jose compiled) for myself, so, I...

May 19, 2021

Quick notes from today:

k8s org(s) membership

• Finally got the kubernetes org(s) invitation emails in the inbox. 😁 💃. It really feels like I’ve earned them, this time! ❤️

May 19, 2021

Quick notes from today:

bumped runc version to v1.0.0-rc95 in cadvisor & containerd

• Raised PRs to bump the runc version to v1.0.0-rc95:
  • google/cadvisor ~ bump runc version to v1.0.0-rc95 #2873
  • containerd/containerd ~ bump runc version to v1.0.0-rc95 #5514

This release of runc contains a fix for CVE-2021-30465.

May 18, 2021

Quick notes from today:

hacking DVO

DVO aka Deployment Validation Operator is an openshift-sdk based operator, which checks deployments and other resources against a curated collection of best practices. Some folks from Red Hat’s AppSRE team are working on building this operator. This is majorly a work in progress currently, & I’m trying to getting involved in this quite early itself. As part of my getting onboarded, I...

May 17, 2021

Quick notes from today:

sig-auth PR/issue triage meeting

• I attended the bi-weekly sig-auth PR/issue triage meeting. I still am a silent listener in the meeting, but I don’t have any regrets, the more I am listening with focus, the more I’m learning. The only thing I need to do moving forward is ask wherever required. But yea, today’s takeaways:
  • I need to read more about...

May 15, 2021

Quick notes from today:

bump hcsshim version to v0.8.17

• Created a PR to bump hcsshim version to v0.8.17 in containerd. Link to the PR here ~ containerd/containerd/pull/5505
• There were 2 failing CI tests:
  • CI / Linux Integration (io.containerd.runc.v2, crun) (pull_request)
    • This one failed at the CRI Integration Test ~ .github/workflows/ci.yml#L445-L450
    • Failing at this line ~ script/test/utils.sh#L78
    ...

May 14, 2021

Quick notes from today:

Bumped containerd version to v1.5.1

• In the morning, I worked on writing PRs for bumping the containered version to the GA version v1.5.1 in the following projects:
  • microsoft/hcsshim ~ bump containerd version to v1.5.1 #1027
  • google/cadvisor ~ bump containerd version to v1.5.1 #2870
  • kubernetes/image-builder ~ bump containerd version to v1.5.1...

May 13, 2021

Quick notes from today:

sig-auth issues & KEP review

• To get better understanding of the work going on in around various kubernetes sig groups, I’m focusing now on reviewing PR/issues & the KEP(s) (Kubernetes Enhancement Proposals).
  • My first point of start is sig-auth. Although, today I went through mix set of PRs & KEPs
  • I (kind of) reviewed the following PRs from the kubernetes/kubernetes...

May 12, 2021

Quick notes from today:

• Version v1.5.0 for containerd is GA now. I raised multiple PRs to bump containerd version to v1.5.0 in the following kubernetes sub-projects:
  • kubernetes /test-infra
  • containerd /zfs
  • kubernetes-sigs/image-builder
• The first two are merged & third one is marked lgtm & awaiting approved label.
• While working on the containerd/zfs PR, I got...

May 07, 2021

Quick notes from today:

The Red Hat OpenShift Administration I (DO280) virtual instructor led training (VILT) is finished. Now, will slowly slowly keep practicing & re-practicing the labs for a month, & then sit for the certification exam.

• What I’m thinking is, actually (& conciously) making a 1 hour focus time block for practicing the labs daily. Will do the planning tomorrow & start from monday!
• Another thing, I need to...

May 06, 2021

Today was a so so day. I would say, the last some hours were hard, other than that it was wonderful in the morning. I did more than usual productive stuff during the time.

(see, I myself am confused, that’s why it was hard. Just too much overthinking happening. 😅).

Well, I didn’t feel like writing today. But then times like these become the culprit behind me breaking a good going streak....

May 05, 2021

Same as yesterday, I spent most of my day continuing with the Red Hat OpenShift Administration I (DO280) virtual instructor led training (VILT). It’s going wonderful. :)

The topics from today’s class were around configuring OpenShift networking for applications.

• I learnt how OpenShift exposes the conatiner applications to external networks using ingress & routes. I learnt about different types of routes (secure & unsecure) that could be created under the OpenShift...

May 04, 2021

This week, I’m working on Red Hat OpenShift Administration I (DO280) virtual instructor led training (VILT). This training is a preparatory course for the OpenShift Administration Certification Exam (EX280).

During one of the chapters today, around troubleshooting OpenShift clusters, I came across this command oc debug node/<node-name>, which is used for debugging cluster nodes (kubelets, crio-d containers, control-plane stuff etc). This command provides a way to...

May 3, 2021

Notes from today:

• Improved this PR (add examples to demonstrate the usage of dynamic client #1448) from yesterday with review pointers. What I fixed is the following:
  • used apiextensions.k8s.io/v1 in place of apiextensions.k8s.io/v1beta for CustomResourceDefintion (CRD) api
  • changing the apiextensions.k8s.io version to v1 made adding versions schema mandatory. So, learnt a lot today about writing CRD schema.
  • improved variables names...

May 2, 2021

Notes from today:

• Worked on the following two issues:
  • how to get namespaces ingressroutes through #1388
    • PR ready, I’m just waiting for one of my yesterday’s PR to get merged first, so, I could add solution to this as well, on top of that.
  • How do we do rolling restart? #1378
    • PR here ~ https://github.com/kubernetes-client/python/pull/1450
• Had a brainstorming session with...

May 1, 2021

Did the following today:

• In the morning, I rebased this PR (Add custom alertmanager go template to enhance email config) with integreatly-operator master branch. And it created a terrible mess (some really serious mess, with changes in 551 files), took me an hour to clean it & finally make it even with the master branch. Hoping it’ll be merged next week, so we get it atleast in the RHOAM...

April 29, 2021

Did the following today:

• Collaborated with a fellow kubernetes contributor (newbie like myself) to discuss his PR (Support customizing “Accept” header #1428) for fixing this issue here. It basically asks to make the API Request/Response Accept header more flexible against different content-type values. (More deeper stuff in the issue itself)

• I also learnt a couple of new k8s api requests debugging stuff. For ex,...