Of course the problem with microservices is that you end up building these huge distributed systems.Bounded context - I don’t know anything about surrounding services other than their API’s - not their internals. Loosely coupled - I can deploy my service any time I want. What are microservices? Well here’s Adrian Cockcroft’s definition. So what are we continuously delivering? MICROSERVICES.If the fixed cost of deployment is high, then you end up spending all of your money, and you can’t develop anything anymore. If it cost you anything to run something, on some time scale the operational cost dwarfs the creation cost, and if the operation cost is high, that day comes quick. So operational discipline is key to cloud native.And when you do that, you can’t break stuff. You also have to deploy again, and again, and again. You see, it’s not enough to deploy something. Well what does that mean? It may help to invert the phrase. The cloud natives practice continuous delivery.And scale refers to our ability to elastically respond to changes in demand. Safety balances speed with the simultaneous ability to maintain stability, availability, and durability. Speed is obvious - we can innovate, experiment, deliver value quickly. Speed, safety, scale, and what I’m now calling “ubiquity.” I used to call this mobile, but what I’m really trying to highlight is the idea that anybody, anywhere, can at anytime interact with your services. Well, in my quest to understand these companies and how they operate, I’ve identified four key patterns.So, if that’s true, what is it that the cloud natives do?.The battle will be fought amongst the cloud-native companies, and their differentiators will be in the digital experiences they are able to create for their users.
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Companies that embrace cloud-native patterns of software delivery will survive companies that don’t will not. In fact, it is a basic requirement for survival.What does this tell us but that the ability to deliver software is no longer a differentiator.Gartner recently announced some very telling observations, including that 45% of surveyed IT organizations have prioritized app modernization, and predicting that by 2020, 75 percent of application purchases supporting digital business will be "build," not "buy.".It has now become absolutely clear that software has in fact eaten the world. We started this journey a few years ago, when Marc Andreessen made the movement defining statement that “Software is Eating the World.” Well, that was a few years ago.Which incidentally I wrote a little book on, and we’re going to sign and give those away here in the Hang Space at 10 o’clock.I’ve spent the last 8 months as part of the Spring team helping align both Spring and Cloud Foundry around the journey to Cloud Native Land. Along the way I got sucked up into the microservices tornado. I then joined Cloud Foundry and spent 18 months helping customers succeed with our platform. Someone heard I could speak Puppet, and I ended up building a platform for 15 months. Hired by VMware, presumably to do app dev consulting. I had the benefit of not growing up around a strong operational discipline, so it forced me to feel the pain. Eventually I figured out it wasn’t just about cutting code, but the ability to deliver things and keep them running, and I got interested in DevOps. I spent my first 11 years as an application developer and later architect.
Start by telling you about my cloud native journey.
If you’ve read James Joyce’s A Portrait of the Artist as a Young Man, you know what I mean.