Ansible-YAML Syntax and Concept

Ansible YAML  |Ansible uses YAML language to make ansible playbook through which control machine is executed automation tasks on remote machine.Yaml language is straightforward language and straightforward for the human being,but we should know yaml Syntax in all respects unmistakably .We use YAML on the grounds that it is simpler for people to peruse and compose than other format like XML or JSON.

YAML Syntax

To define Yaml syntax we should know the below points.

 YAML file must starts with “---” and should  ends with “...”.

YAML supports  “|” to denote  newlines while showing multiple lines and “>” to suppress newlines while showing multiple lines.

YAML Concept

YAML utilizes basic key-value pair to speak to the data. 

We should maintain a gap  among : and value.

Employee record for an example:

---

rahul:

   name: rahul sharma

   empNo: 120

   sex: male

…

How to represent list inside directory

We can also represent list within directory using yaml language.

For an example:

---

rahul:

   name: rahul sharma

   empNo: 120

   sex: male

   dept:

   - sales

   - hr

   - marketing

…

How to represent list using yaml

All members of lists are starting at same level and starting with “-”

Note − There should be space after “_”.

To represent list using yaml let take an example

For an Example:

---

Games:

   - Cricket

   - Football

   - polo

…

Create list for many dictionaries

We can create list for many directories using yaml language. 

ansible YAML Syntax and Concept

---

- rahul:

   name: rahul sharma

   empNo: 120

   sex: male

   dept:

   - sales

   - hr

   - marketing

- rahim:

   name: rahim kumar

   empNo: 130

   sex: male

   dept:

   - finance

   - it

 ...


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