Pasting sample code that can be used as is to run ansible inside python flask app.
This would be a very useful base implementation when devops need to control system over the web or someone tries to control systems over internet without cli
Prerequisites
Install Python3
#PYTHON3 ( Assuming Centos7 or RHEL Flavor). Change accordingly for your env
yum -y install https://centos7.iuscommunity.org/ius-release.rpm
yum -y install python36u
yum -y install python36u-pip
yum -y install python36u-devel
virtualenv –python=/usr/bin/python3.6 venv
from flask import ( Blueprint ) import json import shutil from collections import namedtuple from ansible.parsing.dataloader import DataLoader from ansible.vars.manager import VariableManager from ansible.inventory.manager import InventoryManager from ansible.playbook.play import Play from ansible.executor.task_queue_manager import TaskQueueManager from ansible.plugins.callback import CallbackBase import ansible.constants as C #Blueprint URL Configuration routes bp = Blueprint('AnsibleController', __name__, url_prefix='/AnsibleController') # Ansible Return callback class ResultCallback(CallbackBase): """A sample callback plugin used for performing an action as results come in If you want to collect all results into a single object for processing at the end of the execution, look into utilizing the ``json`` callback plugin or writing your own custom callback plugin """ def __init__(self): self.resp = [] def v2_runner_on_ok(self, result, **kwargs): """Print a json representation of the result This method could store the result in an instance attribute for retrieval later """ host = result._host self.resp.append(json.dumps({host.name: result._result}, indent=4)) #print (json.dumps(out, sort_keys=True, indent=4, separators=(',', ': '))) @bp.route('/ping', methods=('GET', 'POST')) def ping(): # since API is constructed for CLI it expects certain options to always be set, named tuple 'fakes' the args parsing options object Options = namedtuple('Options', ['connection', 'module_path', 'forks', 'become', 'become_method', 'become_user', 'check', 'diff']) options = Options(connection='local', module_path=['/etc/swiftui/.swiftui/ansible/mymodules'], forks=100, become=None, become_method=None, become_user=None, check=False, diff=False) # initialize needed objects loader = DataLoader() # Takes care of finding and reading yaml, json and ini files passwords = dict(vault_pass='secret') # Instantiate our ResultCallback for handling results as they come in. Ansible expects this to be one of its main display outlets results_callback = ResultCallback() # create inventory, use path to host config file as source or hosts in a comma separated string inventory = InventoryManager(loader=loader, sources='localhost,') # variable manager takes care of merging all the different sources to give you a unifed view of variables available in each context variable_manager = VariableManager(loader=loader, inventory=inventory) # create datastructure that represents our play, including tasks, this is basically what our YAML loader does internally. play_source = dict( name="Ansible Play", hosts='localhost', gather_facts='no', tasks=[ dict(action=dict(module='shell', args='ls'), register='shell_out'), dict(action=dict(module='debug', args=dict(msg='{{shell_out.stdout}}'))) ] ) # Create play object, playbook objects use .load instead of init or new methods, # this will also automatically create the task objects from the info provided in play_source play = Play().load(play_source, variable_manager=variable_manager, loader=loader) # Run it - instantiate task queue manager, which takes care of forking and setting up # all objects to iterate over host list and tasks tqm = None try: tqm = TaskQueueManager( inventory=inventory, variable_manager=variable_manager, loader=loader, options=options, passwords=passwords, stdout_callback=results_callback, # Use our custom callback instead of the ``default`` callback plugin, which prints to stdout ) result = tqm.run(play) # most interesting data for a play is actually sent to the callback's methods finally: # we always need to cleanup child procs and the structres we use to communicate with them if tqm is not None: tqm.cleanup() # Remove ansible tmpdir shutil.rmtree(C.DEFAULT_LOCAL_TMP, True) return ''.join(results_callback.resp)