Model-Driven Development and Operation of Multi-Cloud Applications by Elisabetta Nitto Peter Matthews Dana Petcu & Arnor Solberg

Author:Elisabetta Nitto, Peter Matthews, Dana Petcu & Arnor Solberg
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

8.3.2 Artifact Repository

The artifact repository is designed as archive of artifacts generated in various parts of the MODAClouds Project. The project aims to be able to store information like deployment recipes, maven artifacts, software packages or, basically, any other data. The Artifact repository provides an API for managing the artifacts and for searching the stored data based on their meta-data. The API is REST [1] compliant, and consumable from all MODAClouds components and development tools.

It has to satisfy a set of fairly simple requirements. It has to enable the upload of binary files (BLOB). An artifact may be composed of on or more files under 1 GB. Each artifact has to be versioned as any modification done to an existing artifact has to be identifiable. Also, each file associated with an artifact has to be downloadable and it has to support a number of repositories.

The artifact are stored directly on the file system. The file hierarchy is directly mirrored from the URL structure. This means that the folder structure will include folders for repositories, artifacts, versions and the files. Thus making interrogation extremely intuitive. Another bonus of using a simple file system based approach is the ability to use rsync as the synchronization mechanism between artifact repository deployments. In some ways it can be considered as a stripped down version of the object store. It’s main design goal was to create a simple yet powerful mechanism to store software artifact can handle much larger files than the object store.

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