Checking for bad syntax

Defining whether a file has the right syntax or not is fairly easy for a machine, but might be more complex for humans. This does not mean that machines are able to fix the code for you, but they can quickly identify whether a problem is present or not. To use Ansible's built-in syntax checker, we need a playbook with a syntax error. Let's get started:

1. Let's create a syntaxcheck.yaml file with the following content:

---
- hosts: all
  tasks:
    - debug:
      msg: "Hello, World!"

2. Now, we can use the --syntax-check command:

$ ansible-playbook syntaxcheck.yaml --syntax-check

By doing this, we will receive the following output:

ERROR! 'msg' is not a valid attribute for a Task

The error appears to be in '/home/fale/ansible/Ansible2Cookbook/Ch11/syntaxcheck.yaml': line 4, column 7, but may
be elsewhere in the file...