Exploring Single Music’s Cloud Native Journey with Kevin Crawley

The conversation covers: 

• Why Kevin helped launch Single Music, where he currently provides SRE and architect duties.
• Single Music’s technical evolution from Docker Swarm to Kubernetes, and the key reasons that drove Kevin and his team to make the leap.
• What’s changed at Single Music since migrating to Kubernetes, and how Kubernetes is opening new doors for the company — increasing stability, and making life easier for developers.
• How Kubernetes allows Single Music to grow and pivot when needed, and introduce new features and products without spending a large amount of time on backend configurations. 
• How the COVID-19 pandemic has impacted music sales.
• Single Music’s new plugin system, which empowers their users to create their own middleware.
• Kevin’s current project, which is a series of how-to manuals and guides for users of Kubernetes.
• Some common misconceptions about Kubernetes.

Links

• Single Music
• Traefik Labs
• Twitter: https://twitter.com/notsureifkevin?lang=en
• Connect with Kevin on LinkedIn: https://www.linkedin.com/in/notsureifkevin

Emily: Hi everyone. I’m Emily Omier, your host, and my day job is helping companies position themselves in the cloud-native ecosystem so that their product’s value is obvious to end-users. I started this podcast because organizations embark on the cloud naive journey for business reasons, but in general, the industry doesn’t talk about them. Instead, we talk a lot about technical reasons. I’m hoping that with this podcast, we focus more on the business goals and business motivations that lead organizations to adopt cloud-native and Kubernetes. I hope you’ll join me.

Emily: Welcome to The Business of Cloud Native. I'm Emily Omier, your host, and today I am chatting with Kevin Crawley. And Kevin actually has two jobs that we're going to talk about. Kevin, can you sort of introduce yourself and what your two roles are?

Kevin: First, thank you for inviting me on to the show Emily. I appreciate the opportunity to talk a little bit about both my roles because I certainly enjoy doing both jobs. I don't necessarily enjoy the amount of work it gives me, but it also allows me to explore the technical aspects of cloud-native, as well as the business and marketing aspects of it. So, as you mentioned, my name is Kevin Crawley. I work at a company called Containous. They are the company who created Traefik, the cloud-native load balancer. 

We've also created a couple other projects, and I'll talk a little bit about those later. For Containous, I'm a developer advocate. I work both with the marketing team and the engineering team. But also I moonlight as a co-founder and a co-owner of Single Music. And there, I fulfill mostly SRE type duties and also architect duties where a lot of times people will ask me feedback, and I'll happily share my opinion. And Single Music is actually based out of Nashville, Tennessee, where I live, and I started that with a couple friends here.

Emily: Tell me actually a little bit more about why you started Single Music. And what do you do exactly?

Kevin: Yeah, absolutely. So, the company started out of really an idea that labels and artists—and these are musicians if you didn't pick up on the name Single Music—we saw an opportunity for those labels and artists to sell their merchandise through a platform called Shopify to have advanced tools around selling music alongside that merchandise. And at the time, which was in 2016, there weren't any tools really to allow independent artists and smaller labels to upload their music to the web and sell it in a way in which could be reported to the Billboard charts, as well as for them to keep their profits. At the time, there was really only Apple Music, or iTunes. And iTunes keeps a significant portion of an artist's revenue, as well as they don't release those funds right away; it takes months for artists to get that money. 

And we saw an opportunity to make that turnaround time immediate so that the artists would get that revenue almost instantaneously. And also we saw an opportunity to be more affordable as well. So, initially, we offered that Shopify integration—and they call those applications—and that would allow those store owners to distribute that music digitally and have those sales reported in Nielsen SoundScan, and that drives the Billboard Top 100. Now since then, we've expanded quite considerably since the launch. 

We now report on sales for physical merchandise as well. Things like cassette tapes, and vinyl, so records. And you'd be surprised at how many people actually still buy cassette tapes. I don't know what they're doing with them, but they still do. And we're also moving into the live streaming business now, with all the COVID stuff going on, and there's been some pretty cool events that we've been a part of since we started doing that, and bands have gotten really elaborate with their live production setups and live streaming. 

To answer the second part of your question, what I do for them, as I mentioned, I mostly serve as an advisor, which is pretty cool because the CTO and the developers on staff, I think there's four or five developers now working on the team, they manage most of the day-to-day operations of the platform, and we have, like, over 150 Kubernetes pods running on an EKS cluster that has roughly, I'd say, 80 cores and 76 gigabytes of RAM. That is around, I'd say about 90 or 100 different services that are running at any given time, and that's across two or three environments, just depending on what we're doing at the time.

Emily: Can you tell me a little bit about the sort of technical evolution at Single? Did you start in 2016 on Kubernetes? That's, I suppose, not impossible.

Kevin: It's not impossible, and it's something we had considered at the time. But really, in 2016, Kubernetes, I don't even think there wasn't even a managed offering of Kubernetes outside of Google at that time, I believe, and it was still pretty early on in development. If you wanted to run Kubernetes, you were probably going to operate it on-premise, and that just seemed like way too high of a technical burden. At the time, it was just myself and the CTO, the lead developer on the project, and also the marketing or business person who was also part of the company. And at that time, it was just deemed—it was definitely going to solve the problems that we were anticipating having, which was scaling and building that microservice application environment, but at the time, it was impractical for myself to manage Kubernetes on top of managing all the stuff that Taylor, the CTO, had to build to actually make this product a reality. 

So, initially, we launched on Docker Swarm in my garage, on a Dell R815, which was like a, I think was 64 cores and 256 gigs of RAM, which was, like, overkill, but it was also, I think it cost me, like, $600. I bought it off of Craigslist from somebody here in the area. But it served really well as a server for us to grow into, and it was, for the most part, other than electricity and the internet connection into m...