Go to bed a bit stronger — mentally and physically. Help your partner, kids, parents, siblings, friends, and expand the

We are hiring across various roles! If you are interested in exploring working at Grofers, we’d love to hear from you. You can either apply on LinkedIn or directly reach out to the author on Twitter or LinkedIn.

Pods can be provisioned on any node. Even if you control how pods are spread in your cluster, there is no easy way to control how services discover each other in a way that a pod of one service talks to the pod of another service in the same AZ to reduce cross-AZ data transfer.

Spot instances helped us get massive savings. Today, our entire stage Kubernetes cluster runs on spot instances and 99% of our production Kubernetes cluster is covered by reserved instances, savings plan and spot instances.

We have also built a few CRDs. One of them is widely used today to generate monitoring dashboards on Grafana by declaratively specifying what monitoring dashboards should be constructed with. This makes it possible for developers to check-in their monitoring dashboards next to their application code base and deploy everything using the same workflow — kubectl apply -f . .

We are seeing the benefits of controllers and CRDs massively. As we work closely with our cloud vendor AWS to simplify cluster infrastructure operations, we free ourselves up to focus more on building “the Grofers Kubernetes platform” which is architected to support our development teams in the best way possible.

We used Ingress to consolidate ELBs in our stage environment and reduce the fixed costs of ELBs drastically. To avoid this from becoming a cause of dev/prod disparity in code, we decided to implement a controller that would mutate LoadBalancer type services to NodePort type services along with an ingress object in our stage cluster.

Go to bed a bit stronger — mentally and physically. Help your partner, kids, parents, siblings, friends, and expand the circle like that. I see it as a sequential thing. Start with yourself, and then expand your reach, one person at a time. We probably won’t get old enough to expand the circle to the world. But hey, it’s pretty good if you can make your own life and the lives of the people you care about better. That’s already hard enough. Just don’t make things harder by wasting time on things you don’t control. Know what you can and cannot control! That’s the Stoic’s path to a happy life. If you set a high value on happiness, everything else must be valued less. All the best.

Migration to Nginx ingress was relatively simple for us and didn’t require a lot of changes because of our controller approach. More savings can come if we use ingress in production as well. It’s not a simple change. Several considerations have to go in configuring ingress for production the right way and needs to be looked at from the perspective of security and API management as well. This is an area we intend to work in the near future.

I read a book several years ago called “Just for Fun”, by Linus Torvalds — the creator of the Linux kernel. It charts the history of the project, from it’s earliest beginnings in a back bedroom, through to its accidental entry onto the world stage. I thought it might be interesting to relate my own interactions with Linux, and to perhaps reflect a little on the other operating systems I have used too.

After a lot of research and conversations with peers in other companies, we learned that something like this can be achieved by introducing a service mesh to control how traffic from a pod is routed to the destination pod. We were not ready to take the complexity of operating a service mesh ourselves just for the benefit of saving the cost of cross-AZ data transfer.

My relationship with Linux begins with the first laptop I owned — a Toshiba, in about 2000. After playing around with the pre-installed copy of Windows 98 it came with for a few weeks, I read a magazine article about the latest release of “Redhat Linux”, and ordered a shrink-wrapped copy that was delivered by the postman a few days later.

We have started investing in a bunch of controllers and CRDs. For instance, LoadBalancer service type to ingress conversion is a controller operation. Similarly, we use controllers to automatically create CNAME records in our DNS provider whenever a new service is deployed. These are a few examples. We have 5 other separate use-cases where we are relying on our internal controller to simplify daily operations and reduce toil.

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ead singer of the band, The Maine, as well as my idol — tweeted this, and it just stuck with me. At the time, I was dating someone else [not my current boyfriend], and it made me realize that I no longer wanted to be in that relationship because I didn’t love myself. Unfortunately, a large part of that not loving myself came from the pressures and stress of that relationship.

In our two years of journey with Kubernetes, we learned that Kubernetes is great but it’s better when you are using its features such as controllers, operators and CRDs to simplify daily operations and provide a more integrated experience to your developers.

We are hiring across various roles! If you are interested in exploring working at Grofers, we’d love to hear from you. You can either apply on LinkedIn or directly reach out to the author on Twitter or LinkedIn.