Question 25

fastprod_backend/fastprod/api.py

@@ -1,8 +1,8 @@
 from flask import Flask,jsonify,request,abort, make_response
 from werkzeug.exceptions import HTTPException
 from nornir import InitNornir
-
-
+import os
+from werkzeug.utils import secure_filename
 import json
 
 ALLOWED_EXTENSIONS = {'conf'}
@@ -11,15 +11,18 @@ UPLOAD_FOLDER = 'fastprod/upload_files/'
 
 def init_nornir():
     app.config['nr'] = InitNornir(config_file="fastprod/inventory/config.yaml")
-    app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+
+
 
 def allowed_file(filename):
     return '.' in filename and \
     filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
 
 app = Flask(__name__)
+app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+
 from services.devices import ( get_inventory, add_device,get_device_by_name,delete_device,get_device_interfaces,get_device_interfaces_ip,get_device_technical_info)
-from services.config import (get_config_by_device)
+from services.config import (get_config_by_device,run_config_from_file_by_device)
 from services.tasks import (run_show_commands_by_device,run_config_commands_by_device)
 init_nornir()
 
@@ -80,6 +83,14 @@ def get_config(device_name):
         config = get_config_by_device(device)
         return jsonify(interfaces_ip=config)
     if request.method == 'POST':
+        if request.files.to_dict(flat=False).get('config_file'):
+            file = request.files['config_file']
+            if not allowed_file(file.filename):
+                abort(make_response(jsonify(message="file extension not allowed"), 403))
+            filename = secure_filename(file.filename)
+            file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
+            result = run_config_from_file_by_device(device,file_path=os.path.join(app.config['UPLOAD_FOLDER'], filename))
+            return jsonify(result=result)
         if request.get_json().get('mode') == 'enable':
             commands = request.get_json().get('commands')
             result = run_show_commands_by_device(device, commands=commands)
@@ -90,7 +101,6 @@ def get_config(device_name):
             return jsonify(result=result, commands=commands)
 
 
-
 @app.errorhandler(HTTPException)
 def handle_exception(e):
     """Return JSON instead of HTML for HTTP errors."""

fastprod_backend/fastprod/services/config.py

@@ -2,6 +2,8 @@ from api import app
 from nornir_napalm.plugins.tasks import napalm_get, napalm_configure, napalm_cli
 from nornir.core.task import Task, Result
 from nornir_utils.plugins.functions import print_result
+from nornir_netmiko.tasks import netmiko_send_config, netmiko_send_command, netmiko_save_config,netmiko_commit
+
 
 def get_config_by_device(device):
     nr = app.config.get('nr')
@@ -12,7 +14,6 @@ def get_config_by_device(device):
 def run_config_from_file_by_device(device=None, file_path=None):
     nr = app.config.get('nr')
     if device and file_path:
-        result = nr.filter(device_name=device.get('name')).run(task=netmiko_send_config,
-        config_file=file_path)
+        result = nr.filter(device_name=device.get('name')).run(task=netmiko_send_config,config_file=file_path)
         print_result(result)
         return result[device.get('name')].changed

fastprod_backend/fastprod/upload_files/R1-CPE-BAT-A_loopback.conf

@@ -0,0 +1,3 @@
+interface loopback 10
+ip add 10.10.10.10 255.255.255.255
+description created from config file uploaded from postman

fastprod_backend/nornir.log

@@ -51,3 +51,5 @@ Traceback (most recent call last):
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 TypeError: expected string or bytes-like object, got 'list'
 
+2025-11-27 13:16:50,900 -  nornir.core -     INFO -        run() - Running task 'netmiko_send_config' with args {'config_file': 'fastprod/upload_files/R1-CPE-BAT-A_loopback.conf'} on 1 hosts
+2025-11-27 13:18:50,146 -  nornir.core -     INFO -        run() - Running task 'netmiko_send_config' with args {'config_file': 'fastprod/upload_files/R1-CPE-BAT-A_loopback.conf'} on 1 hosts