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Utilization of Linux Containers for HW/SW Co-Design
Juřica, Jiří ; Přikryl, Zdeněk (referee) ; Hruška, Tomáš (advisor)
In this bachelor thesis a way of replacement standard virtual machines by Linux containers is described. The goal is to create a~fully working system for performing parallel jobs with prepared environments for software build and test purposes. For containerization the Docker platform was chosen, which is used with automation tool for computers preparation. The system is also connected with continuous integration tool called Jenkins. This solution proves that usage of the Linux containers is more efficient than older virtualization technologies. The due time of each job was shortened about 24 % in average. The main benefits of this thesis is the comparison of two ways of virtualization and the introduction to the Docker technology.
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Reengineering of Two-Tier Applications
Oberreiter, Michal ; Rychlý, Marek (referee) ; Burget, Radek (advisor)
This thesis deals with an analysis of issues regarding reengineering of two-tier applications. Based on the available literature, a comprehensive description of methodology, strategies and approaches is compiled. Relevant software architectures are described, mutually compared and selected problems and their solutions are discussed. As a demonstration of the described methodology, a real-world application was chosen in collaboration with company I&C Energo. This application named Cable Management System is thoroughly analysed and issues concerning the current implementation are identified. Based on the gathered knowledge, a new reengineered cloud-native microservice-based solution is designed and implemented. The result of this thesis is a case study of reengineering application on concrete example of Cable Management System.
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Operator for MariaDB Galera Cluster in OpenShift
Javorský, Lukáš ; Malinka, Kamil (referee) ; Januš, Filip (advisor)
Hlavným cieľom bakalárskej práce je vytvoriť riadený systém databázových serverov, ktorý je schopný sa adaptovať a reagovať na ich aktuálne zaťaženie. Riešenie tohto problému nachádzame práve v najnovšej platforme, určenej pre riadenie a nasadenie OpenShift 4 postavenej na základoch softwaru Kubernetes. Použitím operátora ako mysle celého OpenShift clustra, zodpovedného za nasadenie, vyvažovanie záťaže, detekciu zlyhaní a zotavenie po zlyhaní MariaDB kontajneroch, môžeme zabezpečiť, že bude databáza bezproblémovo fungovať, dokonca aj pri najvyšších špičkách záťaže počas dňa. Na replikáciu medzi databázovými servermi sa využíva softvér Galera vo vnútri každého MariaDB servera, ktorý zabezpečuje konzistentný obsah.
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Testing Open vSwitch and DPDK
Šabart, Otto ; Grégr, Matěj (referee) ; Čejka, Rudolf (advisor)
The project is about the virtual switch called Open vSwitch and its architecture. It deals with an acceleration of the switch mainly by using Data Plane Development Kit (DPDK). Furthermore, it describes the architecture of the DPDK kit and analyses the individual functional units. Furthermore, it describes the architecture of the DPDK kit, analyses the individual functional units and describes the possibilities of its configuration. Another part of the project describes the methodology chosen for a performance testing of virtual switches. Subsequently, this methodology was used to make a design and environment implementation for fully automatic Open vSwitch s DPDK performance testing with the use of automatic systems such as Koji, Jenkins, Beaker a VSperf. Simultaneously, the tools for automatic comparison of produced results were implemented. The created environment was then used for the performance measurement of several basic Open vSwitch configurations with and without the use of DPDK. The implemented measurements are discussed and evaluated in the project. The final project's stage provides a great amount of the enlargement and improvement of the implemented tests.
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Module Orchestration of Multitenant Systems
Jeřábek, Filip ; Janoušek, Vladimír (referee) ; Smrčka, Aleš (advisor)
The aim of this thesis is to propose and demonstrate a solution for alternative conversion of an application into multitenant form together with its transfer from a customer server and deployment on a shared server of the company that develops this system. The conversion does not include a classical modification of the original application and implementation of multitenancy directly into its code. Using systems such as Docker and Kubernetes, modules of the original application will be extracted, containerized and orchestrated, creating the illusion of multitenancy. This thesis does not aim at presenting a single solution, but appeals to provide the necessary knowledge, multiple design variants and the implementation of a universal demonstration solution, where before using any of the designs, it is expected to modify it according to the specific needs of the actual solution and its subsequent implementation. The proposed solutions aim to simplify the process of this conversion, which is related to saving resources, and also to provide the possibility of creating the illusion of multitenancy for systems where the classical approach is too difficult or impossible.
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Configurable Parallel Execution of System Tests within the Strimzi Project
Orsák, Maroš ; Rogalewicz, Adam (referee) ; Češka, Milan (advisor)
V poslednych rokoch mnoho spolocnosti prijalo Kubernetes a architekturu mikrosluzieb, ktoru umoznuje. Tato technologia otvorila nove moznosti nielen pre velke spolocnosti, ale aj pre malych vyvojarov softveru. Kubernetes je system riadenia kontajnerov a nedavno sa objavil novy koncept, ako efektivnejsie organizovat kontajnery - vzor operatora. Jeden takyto operator je vyvinuty a udrziavany v ramci open-source projektu s nazvom Strimzi. Projekt Strimzi spaja niekolko nastrojov, ktore sa staraju o nasadenie Apache Kafka na Kubernetes. Kedze Kafka je komplexny, horizontalne skalovatelny, distribuovany system, viete si predstavit, ze jeho instalacia je pomerne zlozita akcia. Preto jednou z najvacsich vyziev pouzivania Kubernetes je, ako efektivne a rychlo otestovat projekty ako Kafka a Strimzi a zaroven overit integraciu s inymi podobnymi produktmi. Zdroje, ktore potrebuje Kubernetes, su ovela narocnejsie v porovnani s nasadenim Kafka na virtualne stroje alebo typicke instancie kontajnerov. Aby sme tento problem vyriesili, prijali sme principy par- alelneho vykonavania a vytvorili mechanizmus v ramci systemovych testov Strimzi, ktory paralelne spusta testy iba proti jedinemu klastru Kubernetes. Okrem toho sme navrhli uplne novu architekturu pre end-to-end testy. Vylepsenia su zamerane na skalovatelnost a skratenie casu vykonavania . Prostrednictvom niekolkych experimentov tato praca ukazuje, ze navrhovany mechanizmus s roznymi konfiguraciami klastra Kubernetes (vratane pocet uzlov Kubernetes , pocet paralelne vykonavanych testov a sad ) vyrazne urychlil vykonavanie testov.
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Modular Webhosting for Educational Purposes
Kašpárek, Ladislav ; Smrčka, Aleš (referee) ; Pavela, Jiří (advisor)
The bachelor’s thesis is focused on the design of web hosting, the aim of which is to support IT teaching in secondary schools. The resulting web hosting is built on the Docker container platform, which is controlled by own implementation management platform. The actual implementation achieves maximum control over the deployment of the services that the students are supposed to use during teaching. The created web hosting enables isolated running services, the advantage of which are the same running environments while maintaining the separation of individual services. Part of the bachelor’s thesis is the deployment of web hosting and the subsequent student evaluation based on the experience of using the services.
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Module Orchestration of Multitenant Systems
Freyburg, Petr ; Pavela, Jiří (referee) ; Smrčka, Aleš (advisor)
This thesis deals with the creation of multitenant systems and their orchestration. The creation process is based on the transformation of an existing monolithic but modular system in order to extract a selected module. The resulting solution includes an infrastructure that enables secure transmission between the information system and the extracted module. This infrastructure isolates the individual tenants from each other. The individual modules are containerized in Docker technology and orchestrated using Kubernetes. The proposed solution supports several interfaces between the module and the system. Supported interfaces include, for example, a standard client-server architecture or a standard input/output to allow the single-running of console applications.
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Module Orchestration of Multitenant Systems
Jeřábek, Filip ; Janoušek, Vladimír (referee) ; Smrčka, Aleš (advisor)
The aim of this thesis is to propose and demonstrate a solution for alternative conversion of an application into multitenant form together with its transfer from a customer server and deployment on a shared server of the company that develops this system. The conversion does not include a classical modification of the original application and implementation of multitenancy directly into its code. Using systems such as Docker and Kubernetes, modules of the original application will be extracted, containerized and orchestrated, creating the illusion of multitenancy. This thesis does not aim at presenting a single solution, but appeals to provide the necessary knowledge, multiple design variants and the implementation of a universal demonstration solution, where before using any of the designs, it is expected to modify it according to the specific needs of the actual solution and its subsequent implementation. The proposed solutions aim to simplify the process of this conversion, which is related to saving resources, and also to provide the possibility of creating the illusion of multitenancy for systems where the classical approach is too difficult or impossible.
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