DEVASC Developing Applications & Automating Workflows using Cisco Platforms

Learning Objectives

After completing this course you should be able to:

• Describe the importance of APIs and use of version control tools in modern software development
• Describe common processes and practices used in software development
• Describe options for organizing and constructing modular software
• Describe HTTP concepts and how they apply to network-based APIs
• Apply Representational State Transfer (REST) concepts to integration with HTTP-based APIs
• Describe Cisco platforms and their capabilities
• Describe programmability features of different Cisco platforms
• Describe basic networking concepts and interpret simple network topology
• Describe interaction of applications with the network and tools used for troubleshooting issues
• Apply concepts of model-driven programmability to automate common tasks with Python scripts
• Identify common application deployment models and components in the development pipeline
• Describe common security concerns and types of tests, and utilize containerization for local development
• Utilize tools to automate infrastructure through scripting and model-driven programmability

Pre-Requisites

Attendees should meet the following prerequisites:

• Basic computer literacy
• Basic PC operating system navigation skills
• Basic Internet usage skills
• Hands-on experience with a programming language (specifically Python)

Recommended Pre-Requisites

• PRNE – CPLL – Programming for Network Engineers - CPLL

Course Contents

Practicing Modern Software Development

• Rise of APIs in Software Design
• API Data Formats
• Serialization and Deserialization of Data
• Collaborative Software Development
• Version Control with GIT
• Branching with GIT

Describing Software Development Process (Self-Study)

• Software Development Methodologies
• Test-Driven Development
• TDD Example
• Code Review

Designing Software (Self-study)

• Modular Software Design
• Modular Design Benefits
• Architecture and Design Patterns
• MVC Architecture Pattern
• Observer Design Pattern

Introducing Network-Based APIs

• HTTP Protocol Overview
• HTTP Protocol Applied to Web-Based APIs
• HTTP Content Negotiation
• RPC-Style APIs
• REST-Style APIs
• Postman for REST API Consumption
• Advanced Postman Topics
• Consuming notification Events Using Webhooks

Consuming REST-Based APIs

• Common API Constraints
• API Authentication Mechanisms
• Using HTTP Authentication
• Leveraging HTTPS for Security
• Handling Secrets for API Consumption

Introducing Cisco Platforms and APIs (Self-study)

• Cisco Network Management Platforms
• Cisco Compute Management Platforms
• Cisco Compute Management APIs
• Cisco Collaboration Platforms
• Cisco Collaboration APIs
• Cisco Security Platforms
• Cisco Security APIs
• Cisco Network Management Platforms in Cloud

Employing Programmability on Cisco Platforms

• Automating Cisco Network Operations
• Cisco IOS XE Device-Level APIs
• Cisco NX-OS Device-Level APIs
• Cisco Controller APIs
• Automating Cisco Webex Teams Operations
• DevNet Developer Resources

Describing IP Networks (Self-Study)

• Basic Networking Concepts
• MAC Addresses and VLANs
• Network Routes and Routing
• Transport Layer and Packet Delivery
• Network Device Planes

Relating Network and Applications

• Standard IP Network Services
• Network Address Translation
• Common Protocols
• Application Connectivity Issues
• Tools for Troubleshooting Connectivity Issues
• Explaining the Impact of Network Constraints on Applications

Employing Model-Driven Programmability

• Model-Driven Programmability Stack
• Network Automation and NETCONF
• Exploring YANG Models
• Utilizing Data Models with RESTCONF Protocol
• Using Python Scripts and Cisco SDKs
• Model Driven Programmability in a Cisco Environment

Deploying Applications

• Application Deployment Types
• Application Deployment Models
• Edge Computing Overview
• DevOps Practices and Principles
• Components of a CI-CD Pipeline
• Essential Bash Commands for Development and Operations

Automating Infrastructure

• SDN and Intent-Based Networking
• Infrastructure as Code
• System Management with Ansible
• Infrastructure Automation with Ansible Playbooks
• CI/CD Pipelines for Infrastructure Automation

Testing and Securing Applications

• Software Test Types
• Verifying Code Behaviour with Unit Tests
• Dockerfile Composition
• Using Docker in a Local Developer Environment
• Application Security
• Securing and Scaling Application Ingress Traffic
• Network Simulation and Test Tools

Labs:

• Parse API Data Formats with Python
• Use Git for Version Control
• Identify Software Architecture and Design Patterns on a Diagram
• Implement Singleton Pattern and Abstraction-Based Method
• Inspect HTTP Protocol Messages
• Use Postman
• Troubleshoot an HTTP Error Response
• Utilize APIs with Python
• Use the Cisco Controller APIs
• Use the Cisco Webex Teams™ Collaboration API
• Interpret a Basic Network Topology Diagram
• Identify the Cause of Application Connectivity Issues
• Perform Basic Network Configuration Protocol (NETCONF) Operations
• Use Cisco Software Development Kit (SDK) and Python for Automation Scripting
• Utilize Bash Commands for Local Development
• Construct Infrastructure Automation Workflow
• Construct a Python Unit Test
• Interpret a Dockerfile
• Utilize Docker Commands to Manage Local Developer Environment
• Exploit Insufficient Parameter Sanitization

Exam Information

This course is recommended as preparation for the following exam:

• 200-901- DevNet Associate Exam

This training course provided by Skilltec is accredited through Global Knowledge Training Ltd. Global Knowledge Training Ltd are the authorised learning partner; all trademarks and partner statuses are provided through them.