Tosca explained

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  • Goals:Why Workflows are critical part of automation of applications on the cloudClarify the need for something like OpsWorksWhy do we think this OpsWorks is needed in addition to other projects
  • http://www.cloudcomputing-news.net/blog-hub/2013/sep/10/the-challenge-of-predicting-enterprise-cloud-computing-growth/ 83% of enterprises face significant roadblocks that hold them back from moving beyond cost reduction to faster time-to-market and better orchestration of their businesses. Respondents mentioned that politics, budget, time and staff are the main sources of roadblocks to getting more value out of their cloud computing investments. The majority of these roadblocks are not related to IT.  They include lack of clarity regarding organization and budget (37%), resistance to change (16%) and lack of trust (visibility and reliability) (15%).  The following graphic illustrates the enterprise cloud journey as defined in TheInfoPro Wave 5 Cloud Computing Study.
  • Tosca explained

    1. 1. Yaron Parasol @yaronpar Introduction to TOSCA
    2. 2. About Me • Yaron – Modern Hebrew Name • Parasol – Strange Polish Name • Lead Product Manager of Cloudify at GigaSpaces • Member of TOSCA TC
    3. 3. Many stages require manual involvement Provision Install Configure Deploy Monitor Scale Application Deployment Lifecycle
    4. 4. The Impact of Human Error 80%of outages impacting mission- critical services will be caused by people and process issues 80%of outages impacting mission- critical services will be caused by people and process issues 50%of those outages will be caused by change/configuration/release integration and hand-off issues
    5. 5. 61%ARE HERE 83%WANT TO BE HERE TIME EFFECTIVENESS The Path to Orchestration
    6. 6. What is TOSCA? • Topology & Orchestration Specification of Cloud Application • By OASIS – Sponsored by IBM, CA, Rackspace, RedHat, Huawei and others
    7. 7. What is TOSCA? • Goal: cross cloud, cross tools orchestration of applications on the Cloud • Status: – Version 1 approved (XML ) – Version 2 (also YAML!) in final design
    8. 8. Why TOSCA? • Standard • Can Describe – Any Topology – Any Automation Process • Portable between Clouds and Tools
    9. 9. The TOSCA Building Blocks Application Topologies Workflows Policies
    10. 10. What do we see here?
    11. 11. What do we see here? Host Middleware App module connection
    12. 12. What We’ve Seen • An application topology • 3 layers – Infrastructure (Cloud or DC objects) – Platform or Middleware (App containers) – Application modules, schemas and configurations • Relationships between components: – What’s hosted on what or installed on what – What’s connected to what
    13. 13. What’s in a TOSCA Topology? • component in the topology are called Nodes • Each Node has a Type (e.g. Host, BD, Web server). – The Type is abstract and hence portable – The Type defines Properties and Interfaces • An Interface is a set of hooks (named Operations) • Nodes are connected to one another using Relationships
    14. 14. Topology Infrastructure Middleware Application Host Host Network Apache Tomcat MySQL Mod_proxy WAR Schema
    15. 15. Structure & Syntax
    16. 16. Node Type • Describe a Cloud or Software type (e.g. Server or Apache) • Maps the Type to the actual impl. Of the lifecycle interface
    17. 17. Node Type (cont.) • Defines properties as YAML maps • Might defines capabilities (What it can provide to other nodes)
    18. 18. Node Type (cont.) • Might Define Requirements (what it needs from other nodes)
    19. 19. Relationship Type • Requirements and Capabilities are implicit way to describe relationships • Usually you need the explicit way – You need hooks to configure the source or target node or both • So relationships have types and interfaces as well
    20. 20. Relationships (cont.) • The basic relationship types are: – dependsOn – abstract type and its sub types: – hostedOn – a node is contained within another – connectsTo – a node has a connection configured to another • The basic interface is configure – preconfigure_source, preconfigure_target – postconfigure_source, postconfigure_target – add_target, remove_target
    21. 21. Node Templates • An instance of a type (like Object to Class) • Has specific properties • Has artifacts: – What to install – How to install (mapped to interface hooks) • Has requirements and capabilities (or relationships)
    22. 22. Node Template (Examples)
    23. 23. Translated to TOSCA Node Node Node Connectes_to relationship Hosted_on relationship
    24. 24. Workflows • Imperative flow algorithm • Using a workflow engine • Timing the invocation of operations on different node
    25. 25. Policies • Brings monitoring to the orchestration as input • Ongoing evaluation of Rules • Enforce SLA, Health, and anything else • Can invoke more processes
    26. 26. Putting it All Together • TOSCA Template (Blueprint in Cloudify) contains: – Application Topology • Nodes – Interfaces – Properties – Artifacts (Plugins in Cloudify) • Relationships – Interfaces – Workflows – Policies
    27. 27. Proxy REST + File Server GUI Workflow Engine Task Manager Blueprint + Runtime Data Agent Agent Application Stack Cloudify Manager App VM Invokes Reports Creates Architecture
    28. 28. Policy Engine Monitoring Data Monitoring Agent Cloudify Manager App VM Invokes Reports Creates Metrics VM Architecture
    29. 29. Proxy REST + File Server GUI Workflow Engine Task Manager Blueprint + Runtime Data Policy Engine Agent Monitoring Data Agent Monitoring Agent Application Stack Cloudify Manager App VM Invokes Reports Creates Metrics VM Logs + Events Architecture
    30. 30. Cloudify 3 Demo • Apache 2 OpenSource • Release – July 2014
    31. 31. Thank you • http://getcloudify. org

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