Generates an Ansible dynamic inventory of running virtual machines in Parallels.

Parallels Running Instance Dynamic Inventory.py

#!/usr/bin/env python3

import json
import os
import re

def get_running_instances():
    stream = os.popen('prlctl list -o ip --no-header')
    output = stream.read()
    replaced = re.sub(r"\s.*\n", "\n", output)
    return replaced

# Constructs to the inventory JSON object
def create_inventory(instances):
    host_key = "vagrant"

    inventory = {
        host_key: {
            "hosts": [],
            "vars": {
                "ansible_ssh_user": "scott",
                "ansible_ssh_private_key_file": "~/.ssh/id_ed25519"
            }
        },
        "_meta": {
            "hostvars": {}
        }
    }

    for ip_addr in instances.splitlines():
        if len(ip_addr) > 0:
            inventory[host_key]["hosts"].append(ip_addr)
            inventory["_meta"]["hostvars"][ip_addr] = {}

    return inventory

instances = get_running_instances()

inventory = create_inventory(instances)

print(json.dumps(inventory))