YAML Zero to Master

Learn basic & advance topics, data types, syntaxes, key features, and capabilities of YAML along with use cases.

Topics covered in the course

• What is YAML (YAML Ain't Markup Language) and introduction to it
• How YAML is different from XML (Extensible markup language) and JSON (JavaScript Object Notation)
• How YAML is similar inline style to JSON (is a superset of JSON)
• Understand how easy and simple to represent complex mapping inside YAML
• YAML use cases and why it is being used heavily inside Configurations management
• Thumb rules that needs to be followed in writing a valid YAML file
• Scalars inside YAML and how they represent a single stored value
• YAML support to Strings, Integer, Float, Date, Timestamp, Boolean, Null etc.
• How to write multiple lines of String using folded style and literal style inside YAML
• How YAML supports comments inside it and how to write them with the help of #
• YAML support to implicit and explicit typing
• How to write different types of date formats using !!timestamp data tag
• What are Sequences inside YAML and how to write it using Block style and flow style
• What are Dictionaries inside YAML and how to write them to represent related object details like Application, Person, Vehicle etc.
• What is the common structure inside YAML document
• How to write complex keys inside YAML using ?
• What are Anchors & Alias inside YAML. How to write them using & and *
• What is overriding/merging inside YAML and how to use inside Anchors and Alias using <<:
• How YAML supports multi-documents and how to write them using --- & ...
• How to validate YAML files using command line tools and yamllint which is a python package
• How to define custom configurations inside yamllint
• How to validate YAML files and convert them into JSON using online websites
• YAML real examples inside AWS Cloud Formation, Docker Compose and Kubernetes

Pre-requisite for the course

• Basic understanding on XML and JSON
• Interest to learn and explore YAML

Important Links

• YAML Official Website - https://yaml.org/
• Spring Cloud Config - https://spring.io/projects/spring-cloud-config