Building out a managed Kubernetes service is a bigger job than you think

Building out a managed Kubernetes service is a bigger job than you think

You may be running your code in containers. You might even have taken the plunge and orchestrated it all with YAML code through Kubernetes. But infrastructure as code becomes a whole new level of complicated when setting up a managed Kubernetes service.

On this sponsored episode of the Stack Overflow podcast, Ben and Ryan talk with David Dymko and Walt Ribeiro of Vultr about what they went through to build their managed Kubernetes service as a cloud offering. It was a journey that ended not just with a managed K8s service, but also with a wealth of additional tooling, upgrades, and open sourcing.

When building out a Kubernetes implementation, you can abstract away some of the complexity, especially if you use some of the more popular tools like Kubeadm or Kubespray. But when using a managed service, you want to be able to focus on your workloads and only your workloads, which means taking away the control plane. The user doesn’t need to care about the underlying infrastructure, but for those designing it, the missing control plane opens a whole heap of trouble.

Once you remove this abstraction, your cloud cluster is treated as a single solid compute. But then how do you do upgrades? How do you maintain x509 certifications for HTTPS calls? How do you get metrics? Without the control plane, Vultr needed to communicate to their Kubernetes worker nodes through the API. And wouldn’t you know it: the API isn’t all that well-documented.

They took it back to bare necessities, the MVP feature set of their K8s cloud service. They’d need the Cloud Controller Manager (CCM) and the Container Storage Interface (CSI) as core components to have Vultr be a first-class citizen on a Kubernetes cluster. They built a Go client to interface using those components and figured, hey, why not open-source this? That led to a few other open-source projects, like a Terraform integration and a command-line interface.

This was the start of a two-year journey connecting all the dots that this project required. They needed a managed load balancer that could work without the control plane or any of the tools that interfaced with it. They built it. They needed a quality-of-life update to their API to catch up with everything that today’s developer expects: modern CRUD actions, REST best practices, and pagination. All the while, they kept listening to their customers to make sure they didn’t stray too far from the original product.

To see the results of their journey, listen to the podcast and check out Vultr.com for all of their cloud offerings, available in 25 locations worldwide.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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Containers are easy—moving your legacy system off your VM is not

Containers are easy—moving your legacy system off your VM is not

Ryan sits down with Dan Ciruli, VP and General Manager of Cloud Native at Nutanix, to talk about getting your virtual machines and Kubernetes to play nice in cloud-native environments, why VMs are still relevant in enterprise applications, and how AI can help modernize legacy systems. Episode notes: Nutanix combines compute, storage, virtualization, and networking so you can run applications and manage data across on-premises datacenters, public clouds, and edge locations all on one platform. Connect with Dan on Linkedin and Bluesky.Congrats to Necromancer badge winner David Ferenczy Rogožan! They won the badge on their answer to Where does adb shell mkdir create directories.TRANSCRIPTSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

26 Dec 31min

Settle down, nerds. AI is a normal technology

Settle down, nerds. AI is a normal technology

Ryan welcomes Anil Dash, writer and former Stack Overflow board member, back to the show to discuss how AI is not a magical technology, but rather the normal next step in computing’s evolution. They explore the importance of democratizing access to technology, the unique challenges that LLMs’ non-determinism poses, and how developers can keep Stack Overflow’s ethos of community alive in a world of AI. Episode notes: Anil is a tech entrepreneur (former CEO at our sister company Fog Creek Software) and writer. You can find him at his blog anildash.com and on Linkedin. Check out the last time Anil was on the pod in 2020 to talk all things Glitch and Glimmer. Shoutout to user pgrad for winning a Lifejacket badge on their answer to Using type hint Any in Django - NameError: name 'Any' is not defined.TRANSCRIPTSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

23 Dec 37min

Last week in AWS re:Invent with Corey Quinn

Last week in AWS re:Invent with Corey Quinn

Ryan sits down with Corey Quinn, Chief Cloud Economist at Duckbill, at AWS re:Invent to get Corey’s patented snarky take on all the happenings from the conference. They discuss whether the AI agent hype is supported by actual buyers, how startups are faring as AWS focuses on large enterprises, and how many of the new technologies coming out this year will actually be transformative. Episode notes:This episode was recorded at AWS re:Invent 2025! Check out Ryan’s recap of events on our blog. Duckbill provides financial planning and analysis for enterprise infrastructure to help you understand, negotiate, and optimize your cloud spend.Connect with Corey on Linkedin and subscribe to his newsletter Last Week in AWS.TRANSCRIPTSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

19 Dec 23min

Live from re:Invent…it’s Stack Overflow!

Live from re:Invent…it’s Stack Overflow!

Ryan is joined by Stack Overflow’s CEO Prashanth Chandrasekar and Director of Data Science Michael Foree on the floor at re:Invent to discuss all they’ve seen and heard at the event, from the future of AI agents to the trust issues the enterprise has around AI and the impact of AI and robotics on the job market.Episode Notes:This episode was recorded at AWS re:Invent 2025! Check out Ryan’s recap of events from the floor on our blog. Connect with Prashanth on LinkedIn.Connect with Michael on LinkedIn.TRANSCRIPTSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

16 Dec 31min

Interface is everything, and everything is an interface

Interface is everything, and everything is an interface

Ryan talks with Wesley Yu, head of engineering at Metalab, about the evolution of interfaces in technology, the pressure that UI generated on the fly would put on your backend systems, and why AI is just the latest and fanciest in a long line of CRUD apps. Episode notes:Metalab designs interfaces for top brands around the world, helping them design, build, and ship their products.Connect with Wesley on Twitter and LinkedIn.Congrats to Populist badge winner SiddAjmera, who won the badge for their answer to Angular FormControl check if required.TRANSCRIPTSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

12 Dec 24min

AI is a crystal ball into your codebase

AI is a crystal ball into your codebase

Ryan is joined by Kayvon Beykpour, CEO and founder of Microscope, to dive into AI-powered code review’s potential for managing large codebases, the need for humans-in-the-loop for reviewing PRs so AI tools can efficiently and effectively debug, and how AI can increase visibility through summarization at the abstract syntax tree level and high signal-to-noise ratio code reviews.Episode notes:Macroscope helps you understand your code through AI-powered code review, automated PR descriptions, and real-time status reportsConnect with Kayvon on Twitter and LinkedIn.This week’s shoutout goes to user Jesper Grann Laursen for winning a Populist badge on their answer to Exclude Table during pg_restore. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

9 Dec 34min

Treating your agents like microservices

Treating your agents like microservices

Ryan is joined by Outshift by Cisco’s VP of Engineering Guillaume De Saint Marc to discuss the future of multi-agent architectures as microservices, the challenges and limitations of the infrastructure for these multi-agent systems, and the importance of communication protocols and interoperability in order to build decentralized and scalable architectures. Episode notes:Outshift is Cisco’s tech incubator that pursues emerging technologies like agentic AI, quantum computing, and next-gen infrastructure. Learn more about multi-agent architecture at their open-source collective AGNTCY.Connect with Guillaume on Linkedin. Today we’re shouting out a Socratic badge winner, Avraam Mavridis, who won the badge for asking well received questions on 100 separate days. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

5 Dec 35min

Abstraction, but for robots

Abstraction, but for robots

Ryan welcomes Simone Kalmakis, VP of Engineering at Viam, to dive into how her team is bridging the gap between software and robotics, the importance of abstraction layers in making robotics more accessible, and the real-world applications of robotics from lobster traps to industrial sanding robots.Episode notes:Viam is a robotics platform that brings modern software development tools into hardware applications. Connect with Simone on Linkedin. This week’s shoutout goes to Lifejacket winner Sergey Kalinichenko for their answer to How does this K&R code for reading an int work?.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

2 Dec 24min

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