What is YAML

YAML is a data serialisation language.It stands for “YAML Ain’t Markup Language”.

The file extensions are: .yaml and .yml, you can use any of the two.

Why you should learn YAML?

It’s very intuitive and human readable compared to other serialization languages.

YAML is a superset of JSON, any valid JSON file is also a valid YAML file.

Uses

YAMLs are used in Docker Compose files, Ansible, Kubernetes and in many tools.

Syntax

As can be seen, syntax are composed of key-value pairs, lists . Comments can also be done using #.

Multiline strings can also be implemented using ‘

’ or ‘>’ symbols.

Multiple YAML documents can also be implemented using ‘—’ symbol in between them.