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High-level description. FI-WARE Cloud Hosting July 2011. Overview. Based on GEs in the Cloud Hosting Chapter , FI-WARE Instance Providers will be able to offer IaaS and PaaS Cloud Hosting Services to Future Internet Application Providers :

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FI-WARE Cloud Hosting July 2011


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    Presentation Transcript
    1. High-level description FI-WARECloud HostingJuly 2011

    2. Overview • BasedonGEs in the Cloud HostingChapter, FI-WARE InstanceProviderswillbeabletoofferIaaS and PaaS Cloud HostingServicestoFuture Internet ApplicationProviders: • IaaS Cloud HostingServices: the app provider will be able to rent raw compute resources such as storage, servers or network, or some combination of them. • PaaS Cloud Hosting Services: the app provider follows a specific programming model and a standard set of technologies to develop applications and/or application components and then deploys them in a set of virtual application containers it rents. • The advantage of IaaSvsPaaS is that it enables users to setup their own personalized runtime system architecture. However it allows this at the price of still requiring system admin skills by the user.

    3. Overview

    4. IaaSDataCenterResource Management • This GE dealswithprovisioning of virtual resourcesovernodes of a DataCenter: Virtual Machines (VMs), Virtual Networks and Virtual Storage • Majorfunctionsperformed: • Orchestration and dispatching of placementrequest • Discovery & inventory of nodes and virtual resources • Provisioning and life cycle management of virtual resourcesovernodes • Capacity management & admission control • Placement optimization • QoS management & resource allocation guarantees • Resource reservation and over-commit • Monitoring & metering • Isolation and security • Resiliency

    5. IaaSDataCenterResource Management • IaaSDataCenter Resources are managed in a hierarchical manner: • At the top, the DataCenter-wide Resource Manager (DCRM) is responsible for surfacing the functions and capabilities required for the provision and life-cycle management of virtual resources • At the bottom, the Node-level Resource Managers (NRMs) are responsible for managing the resources provided by individual physical nodes • In between, a number of System Pools may be defined, typically encapsulating homogenous and physically co-located pools of resources (computing, storage, and network resources) • The Open Cloud Computing Interface (OCCI) will be used to expose functions supported at each level • Resource Managers at all levels will apply intelligent placement optimization and resource over-commit in conjunction with Resource Allocation Service Level Objectives (RA-SLOs)

    6. IaaS Cloud-edgeResource Management • This GE allows the application provider to design and deploy the application so that part of it can be located at the network edge, closer to the end-user (consumer). • It relies on intermediate entities, which we call “cloud proxies”, located at the network edge (typically a set top box in the home environment) equipped with cloud hosting capabilities. • Hostingcapabilitiesexportedbythe Cloud Proxy enabledeployment of VMsorstorageresources as well as configuration of connectionstoend-user’sdevices

    7. IaaSObject Storage Management • The Storage Hosting GE enables to store items (objects) as units of both opaque data and meta-data. • Besides CRUD (Create, Read, Update, Delete) operations on storage objects, this GE will enable: • Storage of objects along with user and provider specified metadata into logical groups named as “containers” • Specification of QoS requirements (e.g. number of replicas, geographic location of the data) that objects or containers must be adhered to • Versioning of objects • Retrieval of metrics associated to objects and containers, including audit and accounting information • The Storage Hosting GE will export functions through a standard CDMI interface

    8. IaaSService Management • The IaaS Service Management GE introduces a higher-level of abstraction on top of IaaS Resource Manager GEs (both DataCenter and Cloud-edge) and interfaces from 3rdIaaS Cloud (e.g. Amazon) dealing with: • Deployment lifecycle management • Elasticity governance • Federation • Functions supported by the IaaS Service Management GE will be exposed through the Cloud Service Management API which allows to deploy portions of an OVF-based IaaS Service Manifest

    9. IaaSService Management • AnIaaSServiceManifestcomprisesthedescription of a Virtual Data Center (VDC) whichis a high-leveldefinition of theinfrastructureneededtosupporttheexecution of a givenapplication/service: • vApps (set of VMs and, optionally, nestedvApps), virtual networks, virtual storage systems and other virtual resources required to deploy the service • Hardware requirements and RA-SLOsto keepwhendeployingVMs • Restrictionservice KPIs for scaling up or down (elasticity) • A rule-basedsystemgovernstheelasticity of the Cloud. Elasticity rules follow the Event-Condition-Action approach, so that automated actions are triggered when certain conditions relating to monitored events (KPIs) hold: • Horizontal scalability: deployment-undeployment of virtual resources (e.g., deployment of additional VMs) • Vertical scalability: changing resource parameters linked to virtual resources (e.g., RAM or CPUs in a VM, allocated bandwidth in a VLAN)

    10. PaaS Management • The PaaS Management GE will provide to the users the facility to manage their applications without worrying about the underlying infrastructure of virtual resources (VMs, virtual networks and virtual storage) required for the execution of the application components. • The user will only provide an Application Description (AD) specifying: • How the application is structured into Application Components (ACs) and how these ACs are connected each other • Connection between ACs and FI-WARE GEs offered “as a Service” (e.g., the Data/Context Publish/Subscribe Broker GE) • The set of Virtual Platform Container Nodes on top of which ACs will be virtually deployed, each supporting the technology stack required for ACs deployed on top to run and corresponding to each of the different tiers in which the Application will be structured • The Elasticity Rules and configuration parameters that may help to define how the initial IaaS Service Manifest definition will be defined and what initial elasticity rules will be established

    11. PaaS Management • ThePaaS Management GE transformsthe AD intoanApplicationDeployment Descriptor (ADD) whichconsists in: • AninitialIaaSServiceManifestorchangestoanexistingIaaSdeployment, enablingtosetupthe virtual executioninfrastructurerequiredfortheapplicationtorun • Information necessary to install, configure and run the different ACs on top of VMs in the virtual execution infrastructure • Deployment of the ADD comprises the following steps: • Interaction with the IaaS Service Management GE, for setting-up the VDC on top of which Application Components will run, based on the IaaS Service manifest or set of changes to existing IaaS deployment in the ADD • Installation of the software linked to Application Components and Provision of the connection to other FI-WARE GE services (e.g., Data/Context Management GEs) that the application is going to use. • Start of the different Application Components on which the Application is structured.

    12. PaaS Management

    13. Thank You !!