Model Driven Orchestration with TOSCA and ARIA

Transcription

1 Model Driven Orchestration with TOSCA and ARIA

2 Dawn of APIs

3 Help All changes saved in Drive Arial DIGITAL BABYLON

4 The promise of TOSCA Topology and Orchestration Specification for Cloud Applications

5 TOSCA Descriptive Language Normative Types tosca.nodes.compute Abstraction openstack.nodes.compute: Derived_from: tosca.nodes.compute Extensibility aria.kubernetes.microservice Composition Imports: app-backend-blueprint.yaml

6 TOSCA Descriptive Language Strict Object-oriented, strictly typed, polymorphic Rich set of base types (Simple Profile + Simple Profile for NFV) Normative lifecycle (install, uninstall, start, stop) Agnostic Not specific to any cloud provider (multi-vim is hard) Not specific to any machine technology (tosca.nodes.compute = VM, container, cage, or?) Base types designed to be lowest-common denominators (politics) Base types are optional Support for generic workflows in TOSCA 1.1

7 Orchestration of APIs App1 Template YAML App2 Artifact (Scripts,Images) TOSCAPackage (*.CSAR)

8 Implementation of TOSCA

9 Open Source Apache 2.0 License Open Governance Apache Software Foundation

10 ARIA s Goal 1. Simplify BY 10X path to support TOSCA

11 ARIA s Goal 1. Simplify 2. Simplify BY 10X path to support TOSCA creation of TOSCA applications

12 ARIA s Goal 1. Simplify 2. Simplify 3. Simplify BY 10X path to support TOSCA creation of TOSCA applications exploration of new models

13 Project Principles Vendor Neutral Technology Independent Interoperability across orchestration vendors

14 TOSCA Spec Definition Use Cases & Models Spec Definition TOSCA Spec Implementation Uses ARIA for TOSCA orchestration Uses ARIA for TOSCA orchestration Uses ARIA for TOSCA orchestration Others

15 So, What is ARIA?

16 What is ARIA? 1. Python LIBRARY for orchestration products to support TOSCA Profiles 3. CLI TOOL to orchestrate TOSCA templates 2. TOSCA SDK for creating TOSCA applications

17 TOSCA App Development Guide ARIA Command Line Interface CSAR Packager TOSCA Reference Example Templates TOSCA Simple Profile 1.0 ARIA TOSCA App Developer SDK Imperative Workflows Artifacts Store TOSCA for NFV Profile 1.0(csd03) ARIA Parser Execution Plugins Architecture Graph Declarative Workflows Models Store Built-in Declarative Workflows Storage Driver (sqlalchemy) ARIA Store IaaS Plugins ARIA Workflow Engine SDN Plugins ARIA Plugins NFV Plugins

18 Declarative Model-Driven Orchestration

19 TOSCA Types Normative node types (Compute, Network, etc ) Relationship types. Lifecycle operations and implementations (create, configure, start and others) ARIA supports custom types. Tosca. Nodes. Compute Tosca. Nodes. WebApp Tosca. Nodes. Database tosca_types.yaml Create /implementation/create Configure /implementation/configure Start /implementation/start Stop /implementation/stop Delete /implementation/delete Create /implementation/create Configure /implementation/configure Start /implementation/start Stop /implementation/stop Delete /implementation/delete Create /implementation/create Configure /implementation/configure Start /implementation/start Stop /implementation/stop Delete /implementation/delete

20 TOSCA Application Topology C Tosca. Nodes. WebApplication C S Con Tosca. Nodes. Database S C Tosca.Nodes.Compute S C Tosca.Nodes.Compute tosca_app_template.yaml TOSCA Template describes the topology of the application. Topology templates use TOSCA node types describing the nodes and their relationships using normative and custom types. Templates can also define implementations for lifecycle operations. S

21 Declarative Model-Driven Orchestration C Tosca. Nodes. WebApplicatio n C S Tosca. Nodes. Database Con S C Tosca.Nodes.Compute C Tosca.Nodes.Compute S S tosca_app_template.yaml ARIA parses application template Normalizes the topology Orchestration Graph is created A workflow mechanism loads the orchestration graph and executes operations of the graph Deploy and Undeploy are common, other day 2 operations such as Heal are supported as well. C Compute(WebApp) Create C Compute(DB) Create S Compute(WebApp) Start S Compute(DB) Start C WebApp Create C WebApp Create S WebApp Start S WebApp Start Con WebApp ConnectTo Database

22 ARIA Workflow Engine Plugins allow the introduction of new node types without modifying parser code Deployment Graph TOSCA Application Package (*.CSAR) ARIA TOSCA Parser ARIA Plugins Graph Based Workflows Embedded Python workflows allow dynamic interaction with the graph Embedded Imperative Workflows

23 Hello World Example Tosca. Nodes. web_app Configure scripts/configure.sh Start scripts/start.sh Stop scripts/stop.sh Tosca. Nodes. web_server # pip install git+ # aria service-templates store helloworld.yaml hello # aria services create hello -t hello # aria executions start install -s hello tosca_definitions_version: tosca_simple_yaml_1_0 node_types: web_server: derived_from: tosca.nodes.root capabilities: host: type: tosca.capabilities.container web_app: derived_from: tosca.nodes.webapplication properties: port: type: integer topology_template: node_templates: web_server: type: web_server web_app: type: web_app properties: port: 9090 requirements: - host: web_server interfaces: Standard: configure: scripts/configure.sh start: scripts/start.sh stop: scripts/stop.sh helloworld.yaml aster/examples/hello-world

24 From topology template to a Service Service Service template web_server Node Templates aria service-templates store Nodes web_app web_server web_app aria services create Requirement Templates host Relationships host Capability Templates Web_server to web_app Configure Operations Create Start Configure Operation Templates Create Start

25 Install Workflow Breakdown Install node sub-workflow Install node sub-workflow Create Tosca. Nodes. web_server Configure Create Pre-configure source Pre-configure target Add source Start Add target Tosca. Nodes. web_app Configure Start Configure Lifecycle scripts/configure.sh scripts/start.sh

26 DNS Service Modelling DNS Service with OpenStack Bind9 Type: application.nodes.bind9 Bind9_host Type: openstack.nodes.server Keypair Floating IP Port Security Group GW FW (YANG)

27 Service Function Chaining with TOSCA vdns Blueprint vfirewall Blueprint vrouter Blueprint Network Service

28 Join the community

29 Hello World Example Tosca. Nodes. web_app Configure scripts/configure.sh Start scripts/start.sh Stop scripts/stop.sh Tosca. Nodes. web_server # pip install git+ # aria service-templates store <helloworld.yaml> <service_name> # aria services create <service_name> -t <template_hello> # aria executions start install -s <service_name> tosca_definitions_version: tosca_simple_yaml_1_0 node_types: web_server: derived_from: tosca.nodes.root capabilities: host: type: tosca.capabilities.container web_app: derived_from: tosca.nodes.webapplication properties: port: type: integer topology_template: node_templates: web_server: type: web_server web_app: type: web_app properties: port: 9090 requirements: - host: web_server interfaces: Standard: configure: scripts/configure.sh start: scripts/start.sh stop: scripts/stop.sh helloworld.yaml aster/examples/hello-world