Ansible Playbook

Written by Post Comment

Ansible Playbook

Playbooks are the files where Ansible code is written. Playbooks are written in YAML format. YAML stands for Yet Another Markup Language. It is human-readable data serialization language and commonly used for configuration files.

Playbook is like a file where you write codes consist of vars, tasks, handlers, files, templates and roles.

Each playbook is composed of one or more modules in a list and Module is a collection of configuration files.




Playbooks are divided into many sections such as -

Target Section = Defines that host against which playbooks task has to be executed



Variable Section = variables are names used to hold one or more values

Task Section = List of all modules that we need to run in order.

YAML (Yet another Markup Language)


For ansible, nearly every YAML files start with a list. Each item in the list is a list of key-value pairs commonly call a dictionary. 

All YAML files have to begin with "---" and end with "..."

All members of a listed line must begin with the same indentation level starting with "-"

for example:

--- # A list of fruits
    fruits:
        - Apple
        - Mango
        - Banana
        - Pineapple
        - Grapes



A dictionary is represented in a simple key: value form

for example:

--- # A list of customer
- customer:
        name: Rakesh
        job: Trainer
        skills: Ansible
        exp: 7 years

Extension for playbook files is .yml

Note:- There should be space between : and value

[user@ip]# vi target.yml

--- # First Test playbook
    - hosts: demo
      user: ansible
      become: yes
      connection: ssh
      gather_facts: yes

now to execute this playbook

[user@ip]# ansible-playbook target.yml








Tags:

Share:

0 comments

Please leave your comments...... Thanks