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Yesterday I attended Day One of Serverless Computing London. Unsurprisingly the theme of the day was ‘serverless’ and the general gist was serverless is here, and it’s here to stay. We explored the past, present and future of serverless, the security risks it brings, and the opportunities it offers.

The venue, speakers and overall atmosphere of the event was great so kudos to Situation Publishing and heise Developer for spending the last year organising the conference.

So, for those who missed it, here’s my Serverless Computing London low down.

 

‘Serverless is bigger than cloud and will power the next 1 billion developers’

The claim was made by Chad Arimura, VP Software, Oracle, during his keynote on The Three Ghosts of Serverless. Chad took on the role of Ebenezer Scrooge to guide us through the past, present and future of serverless all the way from the Encyclopedia of Britannica through to Youtube before finishing off with Google Alexa.

 

Chad Ghost of Serverless

 

OpenFaaS – 0 to serverless in 60 seconds

For those who haven’t heard of OpenFaaS, it’s ‘serverless Functions Made Simple for Docker and Kubernetes’. Started in 2016 the open source serverless platform is designed to run any code, on any cloud, at any scale.

During his session, Alex Ellis, VMWare, took us from 0 to serverless in 60 seconds (12 seconds to be exact!) and introduced us to the three core values of OpenFaaS – developer-first, operator friendly and community centric:

  • Developer-first – to be simple, OpenFaaS gets out of your way
  • Operator friendly – it’s cloud native, light weight, and simple to deploy and operate
  • Community centric – we know that one size doesn’t always fit all so OpenFaaS is an open project, being built by a growing community of contributors

OpenFaaS

 

Serverless security – the good, the bad, the neutral

Now I’m not one to play favourites but this really was a fantastic session from Guy Podjarny, Snyk. The general belief is that serverless = security, right? Not necessarily! While serverless brings with it a host of additional security measures, there are also numerous security risks which, if unaddressed, opens the door to attackers.

Guy created a great slide which I’ve inserted below on where security in serverless is better, neutral and worse. Well worth taking a look at to make sure your serverless platforms aren’t left vulnerable.

 

 

Migrating an existing service to serverless – a 10-step process

As Chad said in his keynote, serverless will power the next 1B developers. So, what does that mean for everyone who’s not yet made the move? In her afternoon session Marcia Vilalba took us through the 10-step guide she follows when migrating a service to serverless.

  1. Identify the problems
  2. Train the team
  3. Create a proof of concept and validate your hypothesis
  4. Optimise the solution to take advantage of the cloud
  5. Redesign a bit of everything to follow good practices
  6. Time to start the real coding
  7. Automate your testing
  8. Automate your CI/CD pipeline
  9. Monitor the system
  10. Go back to step 1

 

Serverless + Kubernetes = Knative

I think the picture below says it all really – Google shook it up when they started talking servers at a serverless conference but have faith, they really do know what they’re talking about!

We got the opportunity to hear about Knative, the ‘kubernetes-based platform to build, deploy, and manage modern serverless workloads’. The platform is flexible, operator friendly, and is designed with developers in mind. What’s not to love?

 

Knative

 

Overall I had a great day at Serverless Computing London and the sessions really showcased the growing trend towards migrating to serverless environments. Looking forward to attending next year to see what developments have been made in serverless, and whether the trend has continued to grow!

Izzi Fuller

Izzi Fuller

Digital Marketer

Izzi is a recent addition to the N4Stack team and loves getting stuck into writing - whether its a blog, collateral or website content.

She's taking a leap into the world of Data, DevOps and Cloud after previously working with SaaS in the pharmaceutical industry and healthcare prior to that.

Get to know more about Izzi here.

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