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Episode 6 – How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud, AWS lays off another 9,000, Kubernetes & cloud native operations survey, Listener feedback from the podcast and Youtube

  1. How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud
  2. AWS lays off another 9,000 
  3. Kubernetes & cloud native operations survey
  4. Listener feedback from the podcast and Youtube

How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud
37Signal wasn’t the first company to complain about the very high cost of cloud and they won’t be the last. Case in point this week is Singaporean company Ahrefs, coming with a real banger and stating that they “saved” $400M in expenses by NOT going to the cloud.

AWS lays off another 9,000
The recent mass layoffs in the industry make for a better scenario to hire cloud talent. Behemoth Amazon, employing about 1.6M people in 2022 will add over 9000 people to that talent pool shortly. CEO Andy Jassy said in a memo to staff on Monday that as part “of the second phase of our operating plan (“OP2”) this past week, I’m writing to share that we intend to eliminate about 9,000 more positions in the next few weeks—mostly in AWS, PXT, Advertising, and Twitch.”

Kubernetes & cloud native operations survey
Admit it, you’ve tried to buy a Raspberry Pi4 now for a long time and have given up. Playing the lottery might be a winning strategy here, so why don’t you try entering the Kubernetes & cloud native operations survey.

Survey Link – Click Here

Episode 5 – The on-prem cloud has its moment, Cloud Native Security, How long does it take to spin up a K8 cluster on a cloud provider from scratch? Listener feedback

The on-prem cloud has its moment

I’ve talked about it in episode 3. There is an interest in figuring out how to avoid huge cloud bills and if there’s a way to run workloads that make sense locally. There are some clear low-hanging fruits, like storage that causes a lot of charges for outbound traffic, or AI workloads that are CPU intensive and require expensive instances. So when I came across this article on “Are companies shifting away from public clouds?” I was intrigued. What do the good folks at StackOverflow (by the way, they have an excellent podcast, you should listen to it if you don’t already do, go find it in the show notes or head over to ) think about this? 

Cloud Native Security 

I work in the security space at IBM and mostly deal with what I call “traditional security” on the infrastructure level. But Kubernetes security is an entirely different beast altogether. Why is it so different? It’s because the whole stack needs to be looked at, not just the application layer 7. Yes, mostly K8 communicates via APIs on layer 7 and pretty much all the magic happens there, but there’s still the network layer, there’s still the unsolved question of trustworthy build pipelines using public images and many more issues. So where do you even start?

How long does it take to spin up a K8 cluster on a cloud provider from scratch?

So let me be honest here and start out by saying creating a K8 cluster in our lab will take far, far longer than even the slowest cloud provider takes to create a cluster. But how quickly can AWS, Azure or Google actually get a K8 cluster ready for you?

Listener feedback from the podcast and Youtube

I absolutely love listener feedback and it’s really nice to hear from you! Thank you to Hanna in Oregon who writes “I was going through apple podcasts yesterday looking for cloud and openshift content when I discovered the open cloud infrastructure podcast which has valuable content.  I’m listening to an episode about running databases on containers. Congrats!” 

Thank you Hanna!

And here’s a question from my YouTube channel: “

Oscar Llerena  • 19 hours ago

Thanks a lot for your video. I would like to ask you for some directions. I was inspired by your setup to start buying a small scale similar one to implement my home lab … but a friend working on devops striked me with a question of why not do this on cloud … I replied that on Cloud I will have to pay monthly tens of dollars for the computing. RAM, and diskspace that I am targeting for my projects .. and he replied that I will have to continuously invest on hardware too, as my computational needs will increment in the future …. what do you think. Thanks in advance.”

Here’s what I think, Oscar. Personal labs aren’t used for benchmarking or for performance testing. At least that’s not what I do in my lab. The majority of lab work consists of figuring stuff out, like networking, storage setup and general compute tasks, like installing operating systems, virtualization or application stacks. None of that is really time sensitive. And in fact my hardware is really old already. The G7’s came out in 2010 and my machines are roughly 10 years old. My G8s are a little younger, but essentially obsolete machines for production. But they still work, they still run just fine, they still provide me with a super-cheap opportunity to play and get stuff working. I don’t upgrade them because there’s no more need to do that. I don’t think you’ll need to continuously upgrade your lab. A one-time buy should last you many years. Thanks for your question, keep them coming!

Bessemer State of the Cloud 2022 report Google Cloud Podcast license

Episode 4 – Kelsey says it’s OK to run databases on K8, $1000 in free money to launch clusters to learn K8s, Openshift 4.12 is out

Hello and welcome to the open cloud infrastructure podcast. I am your host Sascha Siekmann and today is Wednesday, February 15th. 2023 and this is episode 4 with these topics that make this now a longer-lasting podcast than 44% of all podcasts. According to Amplifi and Podnews, 44% of podcasts have less than 3 episodes! ONLY 720k podcasts have more than 10 episodes – my next milestone!

The topics today:

Kelsey Hightower says it’s OK to run databases on Kubernetes and something about your LinkedIn profile

Here is a cool $1000 in credits to run Kubernetes for free to learn it

Openshift 4.12 is out

Kelsey Hightower Twitter Space 

GitHub – techiescamp/kubernetes-learning-path: A roadmap to learn Kubernetes from scratch (Beginner to Advanced level) 

[Technical Product Update] What’s New: OpenShift 4.12 [Jan-2023]

Episode 3 – Azure goes down, Mirantis buys Shipa and 37signal’s cloud repatriation

FAA makes some process adjustments to prevent another meltdown

Reuters reports that Acting FAA Administrator Billy Nolen wrote in a letter dated Friday that the agency has made a change in the system to prevent a corrupt file from damaging a backup database.

Most of Microsoft’s cloud infrastructure goes down 

Microsoft customers experienced an outage that lasted unusually long and was unusually wide spread.
Between 07:05 UTC and 12:43 UTC on 25 January 2023, customers experienced issues with networking connectivity impacting Azure regions, Microsoft 365, Power Platform and Azure Government cloud.

Mirantis buys Shipa
When 50% of Fortune 100 companies are using a company’s product you know something is up with said company. Lens is the most popular integrated development environment (IDE) for Kubernetes. Any Kubernetes, whether stock K8, K3, K0,  EKS, AKS, GKE, Minikube, Rancher, OpenShift. It does it all. 

37signal’s CEO repatriates from the cloud

Oh what fun we have with Jason Fried! He must be such a delight to work with and for when one third of the company resigned after a company all-hands with him. Maybe he’s easily triggered or he just had a bad day or two. Who knows. Or it could be that he’s quite a character.

Episode 2 – SWA or FAA – Chose your modernization disaster

The FAA came to a complete ground stop on Wednesday, January 11, when a critical system failed and had to be restarted, causing an outage that delayed 1300 flights and caused 100 cancellations.

Ransomware is the bane of the existence of our times. IBM pegs the cost of an average cyberattack at $4.3M. You can download the IBM report at This breach however is going to go well over $4M as the entire business line was eliminated. Rackspace did something that I thought was unimaginable. They threw in the towel.

The Developer Sandbox for Red Hat OpenShift is a great platform for learning and experimenting with OpenShift. Because OpenShift is built on Kubernetes, the sandbox is also a great platform for learning and experimenting with Kubernetes. You can go to the Sandbox and learn about a practical implementation

Part 2 of our cloud from scratch: Using KVM to virtualize a three node K8 cluster using OpenShift

Podcasts I recommend has new hosts as of a few episodes (as of late 2022). Has luminaries from the K8 community as well as Googlers as guests. Typically fun to listen to and always something new to learn. Was a bit more fun with Craig Box but change is good! 😉

The Azure podcast.

This is not an “official” Microsoft podcast, but plenty of Microsofties are working on this. It’s in-depth and also fun to listen to. I’ve been following for years.

The official AWS podcast

This podcast is not like the others. Why? The format. The “update shows” are a run-down of all AWS news that fits within the time. Those are the least interesting in my view, but also you hear about stuff you otherwise probably wouldn’t. So I listen to those to keep an eye on things.

Devops and Docker

This one deals with … You guessed it. Devops and Docker. Always interesting guests and great ideas. One of my favorites!

Episode 1 – What is cloud native and why would you care

The year is 2022. It is late December, the busiest travel time of the year and we are experiencing one of the most significant weather events in recent history in the United States. In Buffalo, New York, 39 people have died in one of the longest and fiercest blizzards ever. NPR reports that across the United States, 50 people died in other winter related calamities. The West Coast is drenched in water that an atmospheric river dumped over it. And one single air carrier, Southwest Airlines canceled 14,000 flights and more are expected over the next few days. What do these events have to do with cloud native infrastructure you may ask yourself? Well, as it turns out, a lot! Let’s put aside the circumstances of this epic meltdown of Southwest and try not to make fun of them although that would be easy. After all, this show is all about having a laugh once in a while. 

What is open cloud infrastructure?

open cloud infrastructure covers the cloud native industry space from the perspective of a newbie. Every two weeks, we take the mystery out of cloud-native and build the things that make up modern, secure infrastructure. In every episode, we take a concept or a part of production infrastructure and implement it using cloud native technology. From dedicated servers, virtual machines and containers to server-less, from cats to cattle.
Join us and hear from the teams and individuals that create the systems and products that build secure cloud native businesses that grow and become more efficient.