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Development of a container management tool for Web applications using Docker

Lappas Dionysios

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Summary

In recent years, due to the rise of microservices, cloud com-puting and now the Internet of Things ( IoT ) the development,deployment and management of distributed services is moreimportant than ever. In order to circumvent the challenges thatarise from this evolution, we need tools that, among others, ab-stract the inherent complexities, manage dependencies, maxi-mize portability across systems and enhance scalability. Soft-ware containers encapsulate many of the aforementioned fea-tures. The Docker project, started in 2013, has enabled usersto easily build, ship and run applications based on contain-ers, through an automated workflow. Running and managingmulti-container web applications in the cluster infrastructurethough, is not a trivial task, which requires to deal with orches-tration, service discovery, data and configuration management,networking e.t.c.We designed and implemented a container management toolfor multi-container web applications, on single and multi-host(cluster) environments for development and production. Weconsider containers as components offering and requiring ser-vices, empowering a container-agnostic design. We offer a stan-dard way to map services for web applications into containers,complete life-cycle management for containers and providedservices, coordination between dependent services, data man-agement, service discovery, network isolation with per-applicationcustom networks, support for private container image registriesand a solution to N-to-N configuration problem between con-tainers.

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