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Using variables in playbook

Variables can be defined in a playbook and can be referenced using debug module

- name: This is an example use case of variable

hosts: localhost

vars:

test: hello, this is dummy variable

tasks:

- name: Reading ansible playbook variable

debug:

var: test

Ways of declaring variables in playbook

- name: This is an example use case of variable

hosts: localhost

vars:

test: hello, this is dummy variable

packages: ['wget', 'curl', 'unzip', 'vim']

cities:

- New York

- London

- Tokyo

- Dubai

web_server: {'Linux': 'httpd', 'Unix': 'apache2'}

tasks:

- name: Reading ansible playbook variable

debug:

var: test

- name: Reading ansible playbook variable

debug:

var: packages

- name: Reading ansible playbook variable

debug:

var: cities

Getting values from users for variables and arithmetic operations

- name: This is to Display Arithmetic Opeations on Varaibles

hosts: localhost

gather_facts: false

vars:

a : 10

b : "{{a*10}}"

vars_prompt:

- name : x

prompt: Please enter Value of x

private: no

- name : y

prompt: Please eneter value of y

private: no

tasks:

- name: Operations on variables

debug:

msg:

- "value of a is : {{a}}"

- "value of b is : {{b}}"

- "Addition of User Defined Values x, y is : {{x+y}}"

- "Addition of User Defined Values x, y is : {{x|int + y|int}}"

- "Multiple of User Defined Values x, y is : {{x|int * y|int}}"

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