Topology and Orchestration Specification for Cloud Applications Version. The TOSCA language introduces a grammar for describing service. Topology Templates and plans. The focus is on design time. Runtime. aspects are addressed by providing a container for specifying models of plans. The language provides an extension mechanism that can be. TOSCA utilizes the following specifications: The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL. K2 Template Override Package TrackingGet full access to our entire Joomla template & extension collections, with premium design, robust extensions and 300,000+ member community. MijoShop: The leading e-Commerce application for Joomla! MijoShop is a powerful shopping cart component that is designed feature rich and user friendly. NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this. Masinter, Uniform. The main concepts behind TOSCA are described and some usage patterns of Service Templates are sketched. This specification defines a metamodel for. SAP BPC Quick Guide - Learn SAP BPC simple and easy steps starting from Overview, Terminologies, Applications, Model Design, Data Loading, Reporting, Planning. K2 4.6.11; Current Version: K2 Installation Package: K2 Update: K2 blackpearl: K2 smartforms: K2 Control Pack: K2 for SharePoint (2013) K2 Language Pack (Preview). Release date : April 30, 2015. Our 'create/modify your subscription' menu has now the possibility to automatically subscribe users to the lists you selected. Resource Identifiers (URI): Generic Syntax, http: //www. RFC 2. 39. 6, August 1. Note that the choice of any. Prefix. Namespacetoscahttp: //docs. XMLSchema 1: Prefixes and. All information items defined by TOSCA are identified by one. XML namespace URIs above . A normative XML Schema (. If a mandatory extension is used, a compliant implementation MUST. If an optional extension is used, a compliant. MAY ignore the extension. Core. Concepts and Usage Pattern. The main concepts behind TOSCA are described and some usage. Service Templates are sketched. This specification defines a metamodel for defining. IT services. This metamodel defines both the structure of a service as well as how. A Topology Template (also referred to as the topology. Plans. define the process models that are used to create and terminate a service as. The major elements. Figure 1. A Topology Template consists of a set of Node Templates and. Relationship Templates that together define the topology model of a service as. A node in this graph is. Node Template. A Node Template specifies the occurrence. Node Type as a component of a service. A Node Type defines the. Node Type Properties) and the. Interfaces) available to manipulate the component. Node. Types are defined separately for reuse purposes and a Node Template references. Node Type and adds usage constraints, such as how many times the component. Structural Elements of a Service Template. Relations. For example, consider a service that consists of an. A Topology Template. Node Template of Node Type “application. Node Template of Node Type “process engine”, and a third Node. Template of Node Type “process model”. The application server Node Type defines. IP address of an instance of this type, an operation for. IP address, and an. A. constraint in the Node Template can specify a range of IP addresses available. A Relationship Template specifies the occurrence of a. Topology Template. Each Relationship Template. Relationship Type that defines the semantics and any properties of. Relationship Types are defined separately for reuse purposes. The Relationship Template also defines any constraints with the. OPTIONAL Relationship. Constraints. element. For example, a relationship can be established between the. Node Template and application server Node Template with the. Node Template and process. Node Template with meaning “deployed on”. A deployed service is an instance of a Service Template. The build plan will provide actual. Node Templates and. Relationship Templates of the Topology Template. These values can come from. The build plan will typically make use of operations of the Node. Types of the Node Templates. For example, the application server Node Template will be. IP. address considering the specified range of IP addresses. Next, the process. Node Template will be instantiated by installing a concrete process. Finally, the process model Node Template will be instantiated by. Plans defined in a Service Template describe the. These plans are defined as process models, i. Instead of providing another language for defining process. BPMN or BPEL. The. TOSCA metamodel provides containers to either refer to a process model (via Plan. Model Reference) or to include the actual model in the plan (via Plan. Model). A process model can contain tasks (using BPMN terminology) that. Interfaces of Node Templates (or operations defined by. Node Types specified in the type. Node Templates, respectively), operations of Interfaces of Relationship. Templates (or operations defined by the Relationship Types specified in the type attribute of the. Relationship Templates, respectively), or any other interface (e. Especially, a standard for specifying Topology. Templates (i. e. Such a service topology model could be created by a service developer. The Service Template. Each service provider would map the. This build plan could be provided by the service developer. Service Template. The build plan can be adapted to the. Other management plans. Service Template. Similar to build plans such management plans can. Thus, not only the structure of a service can be defined in. These Plans describe. Defining a set. of management plans for a service will significantly reduce the cost of hosting. While the modeler of a service can include deep domain knowledge. This is very. similar to the situation resulting in the specification of ITIL. Standardizing Service Templates supports the portability of. IT Services. Here, portability denotes the ability of one cloud. Service Template created. Portability of a service means that. Portability. of the individual components themselves making up a particular service has to. Standardizing Service Templates facilitates composing a. IT department, or in different automation. For. example, large organizations could use automation products from different. A Service. Template provides an abstraction that does not make assumptions about the. A cloud provider can host a service based on virtualized. These middleware stacks might be represented by an image. OVF . If OVF is used, a node in a Service Template can correspond to a. OVF's . If the OVF package defines a virtual. Service. Template could correspond to the OVF virtual system collection. A Service Template provides a way to declare the association. Service Template elements to OVF package elements. Such an association. Service Template element can be instantiated. OVF package element. These associations are not. OVF packages. The associations could be to other package types or to. This flexibility allows a Service Template to be. An artifact represents the content needed to realize a. Artifacts can be of different. EJBs or python scripts. The content of an artifact depends. Typically, descriptive metadata will also be provided along with. This metadata might be needed to properly process the artifact. TOSCA distinguishes two kinds of artifacts: implementation. An implementation artifact. For. example, a REST operation to store an image can have an implementation artifact. WAR file. The node type this REST operation is associated with can. The fundamental difference between implementation artifacts. The operations of a node type perform management actions on. The implementations of such operations can be. Thus, the implementation artifacts of the. In other words, “a. TOSCA supporting environment” (i. One such management operation could be the instantiation. The instantiation of a node type can require providing. For this. purpose, a TOSCA container supports a set of types of deployment artifacts that. A service template that contains (implementation or deployment). TOSCA allows for expressing requirements and capabilities. This can be done, for example, to express that one. Requirements and capabilities are modeled by annotating Node. Types with Requirement Definitions and Capability Definitions of. Requirement Types and Capability Types are defined. Node Types. For example, a Requirement Type. Database. Connection. Requirement” might be defined to describe the requirement of. This Requirement Type can then be reused. Node Types that represent, for example, application with the. Figure 2: Requirements and Capabilities. Node Templates which have corresponding Node Types with. Requirement Definitions or Capability Definitions will include representations. Requirements and Capabilities with content. Node Template. For example, while Requirement Types. Requirement metadata, the Requirement represented in a Node. Template can provide concrete values for properties defined in the Requirement. Type. In addition, Requirements and Capabilities of Node Templates in a. Topology Template can optionally be connected via Relationship Templates to. Requirements can be matched in two ways as briefly indicated. Node Template can be matched by capabilities of. Node Template in the same Service Template by connecting the respective. Relationship Templates; (2) requirements of a. Node Template can be matched by the general hosting environment (or the TOSCA. Node Template. during instantiation. Service Templates can be based on and built on- top of other. Service Templates based on the concept of Requirements and Capabilities. For example, a Service Template for a. This approach enables separation of. Figure 3: Service Template Composition. From the point of view of a Service Template (e. During deployment, however, this Node. Template can be substituted by the second Service Template if it exposes the. For example, a Service Template for a single node. Service Template for a clustered application. Non- functional behavior or quality- of- services are defined. TOSCA by means of policies. A Policy can express such diverse things like. A Node Template can be associated with a set of Policies. Node Template will expose. Each Policy specifies the. Node Template. These properties are defined by a Policy Type. Policy Types. might be defined in hierarchies to properly reflect the structure of. Policy Templates provide actual values of properties of the. Policy Types. For example, a Policy Template for monthly. US customers will set the “payment period” property to “monthly”. US$”, leaving the “amount” property open. The. “amount” property will be set when the corresponding Policy Template is used. Policy within a Node Template. Thus, a Policy Template defines the invariant. Policy, while the Policy sets the variant properties resulting. Policy Template in a Node Template. In order to support in a certain environment the execution. This means that beside the. Release Notes for SUSE Linux Enterprise Server 1. Service Pack 4 (SP4). Updated autoyast. Updated binutils to version 2. Updated biosdevname to version 0. Updated brocade- firmware to version 3. Updated btrfsprogs to version 3. Updated cpupower to version 3. Updated crash to version 7. Updated cryptsetup to version 1. Updated dosfstools to version 3. Updated efibootmgr to version 0. Updated gdb to version 7. Updated gfxboot to version 4. Updated hwinfo to version 1. Updated hyper- v to version 6. Updated installation- images to version 1. Updated ipmitool to version 1. Updated iproute. 2 to version 3. Updated iprutils to version 2. Updated iptables to version 1. Updated ledmon to version 0. Updated libcgroup. Updated libdrm to version 2. Updated libguestfs to version 1. Updated lib. HBAAPI2 to version 2. Updated libvirt to version 1. Updated libvpd. 2 to version 2. Updated libzypp to version 9. Updated linux- kernel- headers to version 3. Updated linuxrc to version 3. Updated lldpad to version 0. Updated makedumpfile to version 1. Updated mcelog to version 1. Updated mdadm to version 3. Updated mstflint to version 3. Updated ntp to version 4. Updated numactl to version 2. Updated open. Cryptoki to version 3. Updated open- fcoe to version 1. Updated openssh to version 6. Updated pciutils- ids to version 2. Updated perf to version 3. Updated perl- Bootloader to version 0. Updated perl- Sys- Virt to version 1. Updated postgresql- init to version 9. Updated release- notes- sles to version 1.
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