Introduction to YAML.YAML

What YAML is?

All Ansible playbooks are written in YAML, also we've seen YAML files in Kunernetes.
YAML file is to represnt data.


YAML files

key: value

city: Varanasi
Month: May
Year: 2022
Food: Curry

Array/List The - indicates this is an Array.
===========

City:
-  Varanasi
-  Lucknow
-  New Delhi

Food:
-  Roti
-  Curry
-  Daal

==============
Dictornay/Map Set ofproperties group toghter under an item. Notice the blank space for each properties, you must have equal number
of blank space for each item.


Curry:
  Calaries: 100
  Vitamins: 20
  Carbs: 20

banana:
  Calories: 70
  Vitamins: 50
  carbs: 20


=============
DIctonary/Lists


City:
  -  Newdelhi:
        Population: 100
        Male: 65
        Female: 35

  -  Varanasi:
        Population: 75
        Male: 55
        Female: 45

===============
Dictonary vs List vs List of Dictionary


We use Dictonary to store different properties of a single object.
We can have dictonary under a dictonary.

To store multiple item of the same type of the object, we can use LIST.


Dictonary is an un-orderd collection wheras List is an ordered collection

Arrays/List are ordered collection





SPace/Indentation is the key in YAML.
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https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html
http://www.yamllint.com/