This hands-on tutorial lets participants build an application based on cloud functions by combining serverless computing and service prototyping approaches. All necessary background information including recent research results is conveyed during the tutorial which focuses on two parts, development and operation of functions.
Serverless computing is an increasing industry trend with corresponding rise in interest by scholars. Cloud providers have introduced popular services around this computing paradigm since 2014 including AWS Lambda, IBM and Google Cloud Functions, Azure Functions and several offerings based on Kubernetes extensions. On the industrial and academic research side, with 6 publications in 2016 and already 28 in 2017 according to the Serverless Literature Dataset, a further growth can be expected in 2018. Increasingly, academic prototypes such as OpenLambda or EdgeScale are being proposed especially in relation with cloud, edge and fog computing among other distributed computing specialisations. Due to the strict separation between elastically scalable stateless and stateful services in this computing paradigm, the resulting applications which consist of composite cloud functions are inherently distributed with favourable characteristics such as elastic scalability and disposability. Therefore, due to the expected profound impact on future engineering of distributed applications, this tutorial will provide the background knowledge and hands-on skills to researchers in this domain.
Service prototyping is a technique to rapidly deliver a fully running online service using appropriate tools and technologies. In this tutorial, the hands-on parts will result in a prototypical serverless application which remains accessible as a distributed service after the tutorial. The distribution will encompass a cross-provider composition involving at least two different cloud providers and Function-as-a-Service (FaaS) runtime technologies.