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Model-Driven DevOps: Increasing agility and security in your physical network through DevOps, 1st edition

Published by Addison-Wesley Professional (June 29, 2022) © 2022

  • Steven Carter
  • Jason King
  • Mike Younkers
  • Josh Lothian
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Develop Network Infrastructure More Rapidly, and Operate It More Effectively

Using model-driven DevOps and the Infrastructure as Code (IaC) paradigm, teams can develop and operate network infrastructure more quickly, consistently, and securely--growing agility, getting  to market sooner, and delivering more value. Now, two leading practitioners walk you step by step through successfully implementing model-driven DevOps for infrastructure. In this practical guide, they share lessons learned, help you avoid common pitfalls, and illuminate key differences between DevOps for infrastructure and conventional application-based DevOps.

You'll learn why network infrastructure operations must change, what needs to change, and how to work together to change it. The authors guide you through creating consistent data models to manage massive numbers of network elements, organizing huge quantities of network data, and applying DevOps to infrastructure repeatably and consistently. Your journey includes a complete, hands-on reference implementation, detailed use cases, many examples based on open source tools, and sample code downloadable at GitHub.

* Normalize and organize network infrastructure data consistently, to gain the same benefits from DevOps as cloud operators do* Replace legacy command lines with APIs, then leverage and scale them
* Use configuration management, templates, and other tools to program infrastructure without coding* Safely implement Continuous Integration/Continuous Deployment for infrastructure
* Succeed with key human factors: break down silos, change culture, and address skills gaps

Whether you're a network or cybersecurity engineer, architect, manager, or leader, this guide will help you suffuse all your network operations with greater efficiency, security, responsiveness, and resilience.

Chapter 1: A Lightbulb Goes Off
Enterprise IT as a Source of Risk to the Business
Observations of a Train Wreck
DevOps Seems Like a Better Way
What Is DevOps?
Automation
Infrastructure as Code
CI/CD
Apps vs. Infrastructure
Harnessing Automation-at-Scale
Why Are Enterprise IT Departments Not Adopting DevOps?
Human Factors
Business Factors
Summary
Chapter 2: A Better Way
The Goal: Business Transformation
Constraints-Based IT
Business Transformation
DevOps in Action
Why Model-Driven DevOps?
Network Infrastructure Is Different
What Is Model-Driven DevOps?
What Is a Data Model?
Source of Truth
DevOps as a Framework
DevSecOps: Baked-In Security
Summary
Chapter 3: Consumable Infrastructure
APIs
Why API over CLI?
Platforms
Physical Hardware Provisioning
Consolidated Control Point
Northbound vs. Southbound APIs
API and Feature Normalization
Fabricwide Services
Scalability
Summary
Chapter 4: Infrastructure as Code
Why Infrastructure as Code?
Source of Truth
Data Models
Common IaC Tools
Organization
Types of Source of Truth
Code
Data Flow
Summary
Chapter 5: Continuous Integration/Continuous Deployment
CI/CD Overview
Applications vs. Infrastructure
CI/CD in Action
Source Code Management
Core Features
Collaboration Features
SCM Summary
Continuous Integration Tools
CI Engines
How They Work
Sample Workflow
Infrastructure Simulation Tools
Cisco Modeling Labs
Test and Validation
Linting
Schema/Model Validation
Functional Testing
Test and Validation Summary
Continuous Deployment
Continuous Monitoring
Summary
Chapter 6: Implementation
Model-Driven DevOps Reference Implementation
The Goal
DevOps Roadmap
Architecture
Network as an Application
Consistency
Simulation
Automation
Creating a Source of Truth
Moving Data
MDD Source of Truth
Automation Tooling
MDD Data
Automation Runner
Cisco Network Services Orchestrator
Testing
Linting
Snapshotting the Test Network
Data Validation and State Checking
Data Validation
Pushing Data to the Devices
State Checking
Restore
Continuous Integration Workflow Summary
Deployment
Scale
Starting Workflows
Summary
Chapter 7: Human Factors
Culture and the Need for Change
Start with the Why
Organization
Leadership
Role Models
Building a Team
Break Down the Silos
Community
New Tools
Summary of Organization-Level Changes
Individual
Programming vs. Automation
Version Control Tools
Data Formats
APIs
Templating
Linux/UNIX
Wait! Where Do I Fit In?
Summary
9780137644674 TOC 6/23/2022

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