Fix Ansible Inventory Parsing Errors

[WARNING]: Unable to parse /path/to/inventory as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available

# inventory.ini
[webservers]
web1 ansible_host=192.168.1.10
web2 ansible_host=192.168.1.11

[dbservers]
db1 ansible_host=192.168.1.20

[webservers:vars]
ansible_user=deploy
http_port=80

[all:children]
webservers
dbservers

# WRONG — spaces around = in host vars
web1 ansible_host = 192.168.1.10

# RIGHT
web1 ansible_host=192.168.1.10

# WRONG — missing group header
web1
web2

# RIGHT
[webservers]
web1
web2

# inventory.yml
all:
  children:
    webservers:
      hosts:
        web1:
          ansible_host: 192.168.1.10
        web2:
          ansible_host: 192.168.1.11
      vars:
        ansible_user: deploy
    dbservers:
      hosts:
        db1:
          ansible_host: 192.168.1.20

# WRONG — hosts directly under group (missing 'hosts' key)
all:
  children:
    webservers:
      web1:                    # ← Missing 'hosts:' level
        ansible_host: 192.168.1.10

# WRONG — tabs instead of spaces
all:
	children:                  # ← Tab character!

# WRONG — inconsistent indentation
all:
  children:
    webservers:
      hosts:
       web1:                   # ← 1 space instead of 2

chmod +x inventory.py
./inventory.py --list  # Test it

# Test output
./inventory.py --list | python3 -m json.tool

{
    "webservers": {
        "hosts": ["web1", "web2"],
        "vars": {
            "ansible_user": "deploy"
        }
    },
    "_meta": {
        "hostvars": {
            "web1": {"ansible_host": "192.168.1.10"},
            "web2": {"ansible_host": "192.168.1.11"}
        }
    }
}

# Show parsed inventory
ansible-inventory -i inventory.yml --list

# Show as graph
ansible-inventory -i inventory.yml --graph

# Show specific host vars
ansible-inventory -i inventory.yml --host web1

# Verbose parsing
ansible-inventory -i inventory.yml --list -vvv

# Use a directory of inventory files
ansible-playbook -i inventory/ playbook.yml

# inventory/
#   ├── 01-static.yml
#   ├── 02-dynamic.py
#   └── group_vars/
#       └── all.yml