Dissertaç ˜ao de Mestrado Mestrado em Engenharia Informática Jo ...

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6. INTEGRATION WITH VIRTU 6.3. VIRTU Architecture It provides a number of features for the management of the tool information by interact- ing with other components. The User Management performs user (creation, edition, dele- tion), password (change) and role (set user, administrator) management on it, the Assembly Configurator uses it to manage the available Publication Files, Building Blocks, VM Configurations and Assembly Configurations and, finally, the Assembly Controller accesses the Assembly Instances in run-time from it. Virtualization Services The Virtualization Services contain the system’s virtualization layer which provides the virtualization foundations for the running virtual machines, together with each virtual ma- chine instance hosted by the tool. It provides the basic VM operations such as start, stop, pause, create, delete, etc., and the support to configure and install applications at first-run time. 6.3.2 Processing Layer The Processing Layer is where all the tool operations are ran and the tool workflow is implemented and managed. User Management The User Management is the component which controls the user-oriented operations. It han- dles operations like login checking, password changes, role attributions and creation/dele- tion of users. The access to the User Management is provided by the Eclipse Views Front-End and the External Interfaces, in case of a stand-alone application or a web- service access, respectively. The effects of the operations are reflected in the Configuration Database, under the user related tables. Assembly Configurator The Assembly Configurator allows the administrators to create, edit or delete Assembly Configurations and the Building Blocks and Publication Files that compose those Assemblies. As for the user, he may search through the existing Assembly Configurations, request instances of some of them and edit Publication Files asso- ciated to those instances. Finally, the Assembly Configurator also reports bugs to the administrator. The access to the Assembly Configurator is provided by the Eclipse Views Front -End and the External Interfaces. The Assembly Configurator interacts with the Configuration Database to manage the Assembly definitions and the Block Datastore to manage the Building Blocks. 72
6. INTEGRATION WITH VIRTU 6.3. VIRTU Architecture Assembly Controller The Assembly Controller allows the administrator to control Assembly Instances in run-time and accept or decline user requests for new Assembly Instances, as well as delete the existing ones. The user may, in turn, request new Assembly Instances, share Instances with other users and organize them, access the Instances (i.e., through Remote Desktop) and control them. Interaction with the user resorts to the Eclipse Views Front-End and the External Interfaces. The Assembly Controller accesses the Configuration Database to get any Assembly Instance state on any time, the Block Datastore to request physical Building Block deployment and the Virtualization Services to perform basic VM management operations. External Interfaces The External Interfaces allow the interaction of the tool with other existing infrastruc- tures. It defines a set of components for the communication with the Processing Layer . The External Interfaces interactions cover every component in the Processing Layer since this is the component which allows the integration with third-party elements. The User Management is used for password, login and role management, the Assembly Configurator is used for the management of Assembly Configurations, the Assembly Controller is used for VM lifecycle management and remote connection operations and the Web Front-End and the External Applications are used to allow the access to the tool from a web-browser or a third-party infrastructure. 6.3.3 Presentation Layer The Presentation Layer contains the elements which allow the interaction with users and administrators. Eclipse Views Front-End The Eclipse Views Front-End provides access to the tool through a stand-alone application, based on the Eclipse RCP, which supplies views and perspectives corresponding the functionalities available to users and administrators. This component interacts with all other components in the Processing Layer to reflect the users’ and administrators’ requests. Web Front-End The Web Front-End objective is to allow interaction with the tool by means of a regular web browser, requiring no special applications to be installed in order to communicate with the tool and allowing access from devices other than typical computers, such as smart-phones or thin-clients. Unlike Eclipse Views Front-End which communicates directly with the 73
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Universidade Nova de Lisboa Faculda
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To my family and friends, who suppo
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Sumário Entre os sectores de tecno
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CONTENTS 3.5 Modifying the Configur
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List of Figures 2.1 Virtual applian
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List of Listings 1.1 Apache configu
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1 Introduction This dissertation pr
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1. INTRODUCTION 1.2. Problem Descri
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Bibliography [Ama09] Amazon. Amazon
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BIBLIOGRAPHY [Sol09a] Evolve Space
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Dissertaç ˜ao de Mestrado Mestrado em Engenharia Informática Jo ...

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