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Design CodeTest Check-in

Design Code + Config Test Check-in Deploy

Declarative management Configuration data Simplicity Resource reusability Automation releases Velocity Push/Pull deployments Integrated Azure Extension Engine settings Flexibility

Test Environment Data Prod Environment Data Execute Tests

Traditional Scripts (Imperative) Configuration (Declarative)

Intent Logging & Error Handling Reboot Resiliency Technology Specific Dependency Resolution Repeatable Automation DSC Engine Dependency Resolution Logging & Error Handling Reboot Resiliency Repeatable Automation Resources Technology Specific ConfigurationIntent Traditional Scripts DSC

DSC Engine Dependency Resolution Logging & Error Handling Reboot Resiliency Repeatable Automation Resources Technology Specific ConfigurationIntent Make It So HOW HOW : DSC Resources Do the heavy lifting in an idempotent way Intent WHAT WHAT : Structural Configuration Stays same irrespective of the environment WHERE WHERE : Environmental Configuration Changes as system goes through different env. Dev  Test  Production

xPhpProvision xRemoteFiles Configuration xRemoteFiles { … } Configuration xPhpProvision { … }

Wave 0 Archive Environement File Group Log Package Registry Script Service User WindowsFeature WindowsProcess Wave 1 xComputer xDNSServerAddress xDscWebService xIPAddress xVHD xVMHyperV xVMSwitch xWebsite

Configuration Staging Area (Contains DSC data) Configuration Staging Area (Contains DSC data) 3 rd party languages and tools Authoring Phase (May include imperative as well as declarative code) Staging Phase -Fully declarative configuration representation using DMTF standard MOF instances -Configuration is calculated for all nodes PowerShell “Make it So” Phase (Declarative configuration is reified through imperative providers.) Parser and Dispatcher Resources When authoring in PowerShell: Declarative syntax extensions Schema-driven Intellisense Schema validation (early-binding) Resources implement changes: Monotonic Imperative Idempotent Local Configuration Store

Configuration Staging Area (Contains DSC data) Configuration Staging Area (Contains DSC data) 3 rd party languages and tools Authoring Phase (May include imperative as well as declarative code) Staging Phase -Fully declarative configuration representation using DMTF standard MOF instances -Configuration is calculated for all nodes PowerShell “Make it So” Phase (Declarative configuration is reified through imperative providers.) Parser and Dispatcher Resources When authoring in PowerShell: Declarative syntax extensions Schema-driven Intellisense Schema validation (early-binding) Resources implement changes: Monotonic Imperative Idempotent Local Configuration Store

3 rd party languages and tools Authoring Phase (May include imperative as well as declarative code) Staging Phase -Fully declarative configuration representation using DMTF standard MOF instances -Configuration is calculated for all nodes PowerShell “Make it So” Phase (Declarative configuration is reified through imperative providers.) Parser and Dispatcher Resources When authoring in PowerShell: Declarative syntax extensions Schema-driven Intellisense Schema validation (early-binding) Resources implement changes: Monotonic Imperative Idempotent Local Configuration Store

PS DSC Extension point DSC is the built-in configuration platform for Microsoft

Continuous deployment tooling utilizing Azure and DSC Such as Visual Studio, Brewmaster, etc. Azure Manage Environment VMs Drives Etc. Json / xml DSC Manage Guest Web Application Operating system Etc. PowerShell and MOF

Template Repo Step 1. Pull Template Step 2. Parse Template for Params Step 3. Validate and Combine Params + Template

Step 4. Provision Azure Resources by Deployment Group Affinity Group

Step 5. Bootstrap each VM with DSC, Remoting, etc. Affinity Group

Step 6. Pull Package from Git repo into each node Affinity Group Template Repo

Affinity Group Step 7. Dynamically generate DSC config and push to nodes

Step 8. Poll DSC operations and report progress Affinity Group

Heterogeneous DSC allows you to manage Linux and Windows configuration with common DSC infrastructure and syntax! Standards DSC for Linux implemented the LCM (an OMI Provider) and Linux Resource Providers (Python) Resources Set of “Built-In” Resource Providers for Linux: file, User, Group, Service, Script + more Download now Open-source CTP release at

Declarative management Configuration data Simplicity Resource reusability Automation releases Velocity Push/Pull deployments Integrated Azure Extension Engine settings Flexibility