JAVA WEB APLIKACIJA TEMELJENA NA KONTEJNERIZACIJI I MIKROSERVISIMA

Ciljevi ovog rada su teoretski opisati tehnologiju „cloud-native“ aplikacija i prikazati postupak izrade prototipa jedne takve aplikacije koja služi podršci poslovanja generičke knjižnice. Motivacija za odabir teme potječe iz činjenice da su tehnologija oblaka i „cloud-native“ aplikacije nastale nedavno, dinamično su područje računarstva koje se izrazito brzo i snažno razvija te osjećaj da je ovo prijelomni trenutak u području računalnog inženjerstva usporediv s pojavom objektno orijentiranog programiranja ili nastanka Weba. Praktični dio ovoga rada sastoji se od web aplikacije dizajnirane po principu mikroservisne arhitekture, zapakirane u kontejner i postavljene na nekoliko platformi koje nude uslugu dinamičke orkestracije Docker formata kontejnera. Pri izradi su korištene tehnologije koje predstavljaju standard u izradi mikroservisnih aplikacija u poslovnoj domeni, otvorenog su kôda i dostupne svima. To su Java, Spring, Angular i Docker. Funkcionalnosti aplikacije su minimalni skup aktivnosti poslovne domene upravljanja knjižnicom primjenjive kao referenca na mnogo sličnih područja, ali i neke specifičnosti dodane kako bi bile pokazne za mogućnosti tehnologije ili ilustrativne za ideju aplikacija namijenjenih oblaku.Main objectives of this final thesis are to describe the cloud-native application technology and to demonstrate the procedure of building a prototype of one such application which has the capabilities that serve the purpose of supporting a generic library. The motivation to choose this topic stems from the fact that both the cloud itself and cloud-native applications have come to existence recently, they are a very dynamic field of computing which is evolving rapidly and a gut feeling that this truly is a fundamental moment in software engineering history, relatable to moments in which object-oriented programming or appeared, or the web itself. Practical part of this thesis consists of a web application designed with microservice architecture in mind, packaged in a container and deployed to a few cloud hosting services which provide the ability to host Docker applications. While the application was built, only open-source and gold standard technologies from the cloud-native domain were used. Those are: Java, Spring framework, Angular and Docker. The functionalities of this application consist of a minimal set of business domain activities needed to run a library, which are relatable to other similar business fields. As well as some intricacies added to be exemplary of the technology capabilities or illustrative of ideas that consist applications that are meant to be built for the cloud