basharin_sevastyan_lab_3/README.md

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+```
+basharin_sevastyan_lab_3/
+|-- user_service/
+|   |-- Dockerfile
+|   |-- requirements.txt
+|   |-- user_service.py
+|-- order_service/
+|   |-- Dockerfile
+|   |-- requirements.txt
+|   |-- order_service.py
+|-- nginx/
+|   |-- Dockerfile
+|   |-- nginx.conf
+|-- docker-compose.yml
+```
+
+```yaml
+version: '3'
+
+services:
+  user-service:
+    build:
+      context: ./user_service
+    ports:
+      - "5001:5001"
+    depends_on:
+      - rabbitmq
+
+  order-service:
+    build:
+      context: ./order_service
+    ports:
+      - "5002:5002"
+    depends_on:
+      - rabbitmq
+
+  rabbitmq:
+    image: "rabbitmq:management"
+    ports:
+      - "5672:5672"
+      - "15672:15672"
+
+  nginx:
+    build:
+      context: ./nginx
+    ports:
+      - "80:80"
+    depends_on:
+      - user-service
+      - order-service
+```
+
+```dockerfile
+# user_service/Dockerfile
+FROM python:3.11
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+CMD ["python", "user_service.py"]
+```
+
+```dockerfile
+# user_service/Dockerfile
+FROM python:3.11
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+CMD ["python", "order_service.py"]
+```

basharin_sevastyan_lab_3/docker-compose.yaml

@@ -1,43 +1,33 @@
 version: '3'
 
 services:
-  nginx:
-    image: nginx:latest
+  user-service:
+    build:
+      context: ./user_service
     ports:
-      - 80:80
-    volumes:
-      - ./nginx.conf:/etc/nginx/nginx.conf
-    restart: always
+      - "5001:5001"
     depends_on:
-      - product-service
-      - order-service
-    networks:
-      - mynetwork
+      - rabbitmq
 
-  db:
-    image: postgres:latest
+  order-service:
+    build:
+      context: ./order_service
     ports:
-      - 5432:5432
-    environment:
-      POSTGRES_PASSWORD: admin
-      POSTGRES_USER: admin
-      POSTGRES_DB: message-api
-    volumes:
-      - ./database.sql:/docker-entrypoint-initdb.d/database.sql
-    restart: always
-    networks:
-      - mynetwork
+      - "5002:5002"
+    depends_on:
+      - rabbitmq
 
-  user_app:
+  rabbitmq:
+    image: "rabbitmq:management"
+    ports:
+      - "5672:5672"
+      - "15672:15672"
+
+  nginx:
     build:
-      context: /user_app
-      dockerfile: Dockerfile
-
-  message_app:
-    build:
-      context: /message_app
-      dockerfile: Dockerfile
-
-networks:
-  mynetwork:
-    driver: bridge
+      context: ./nginx
+    ports:
+      - "80:80"
+    depends_on:
+      - user-service
+      - order-service

basharin_sevastyan_lab_3/message_app/Dockerfile

@@ -1,8 +0,0 @@
-FROM python:3.9
-WORKDIR /app
-COPY requirements.txt .
-RUN pip install -r requirements.txt
-COPY . .
-COPY var/data /var/data
-COPY var/result /var/result
-CMD ["python", "main.py"]

basharin_sevastyan_lab_3/message_app/requirements.txt

@@ -1,2 +0,0 @@
-Flask==3.0.0
-Werkzeug==3.0.1

basharin_sevastyan_lab_3/nginx.conf

@@ -1,28 +0,0 @@
-events {
-    worker_connections  1024;
-}
-
-http {
-
-    upstream user-service {
-        server product-service:8080;
-    }
-    upstream message-service {
-        server order-service:8081;
-    }
-
-    server {
-
-        listen 80;
-        listen      [::]:80;
-        server_name localhost;
-
-        location /user-service/ {
-            proxy_pass http://user-service/;
-        }
-
-        location /message-service/ {
-            proxy_pass http://message-service/;
-        }
-    }
-}

basharin_sevastyan_lab_3/nginx/Dockerfile

@@ -0,0 +1,4 @@
+FROM nginx
+COPY nginx.conf /etc/nginx/nginx.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

basharin_sevastyan_lab_3/nginx/nginx.conf

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+worker_processes 1;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    sendfile on;
+    tcp_nopush on;
+    tcp_nodelay on;
+    keepalive_timeout 65;
+    types_hash_max_size 2048;
+
+    include /etc/nginx/conf.d/*.conf;
+    include /etc/nginx/sites-enabled/*;
+}

basharin_sevastyan_lab_3/order_service/Dockerfile

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+FROM python:3.11
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+CMD ["python", "order_service.py"]

basharin_sevastyan_lab_3/order_service/order_service.py

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+# order_service.py
+from flask import Flask, request, jsonify
+import pika
+import json
+
+app = Flask(__name__)
+
+# Конфигурация RabbitMQ
+connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
+channel = connection.channel()
+channel.exchange_declare(exchange='microservices', exchange_type='direct')
+
+
+# CRUD операции для заказов в order_service оставим здесь, чтобы он мог отправлять сообщения
+
+# CREATE
+@app.route('/orders', methods=['POST'])
+def create_order():
+    data = request.get_json()
+    order = {'user_id': data['user_id'], 'product': data['product'], 'action': 'create'}
+
+    # Отправка сообщения о создании заказа
+    channel.basic_publish(exchange='microservices', routing_key='order', body=json.dumps(order))
+
+    return jsonify(order), 201
+
+
+# READ
+@app.route('/orders/<int:order_id>', methods=['GET'])
+def get_order(order_id):
+    # Реализация READ операции по желанию
+    return jsonify({'error': 'Read operation not implemented in order service'}), 501
+
+
+# UPDATE
+@app.route('/orders/<int:order_id>', methods=['PUT'])
+def update_order(order_id):
+    data = request.get_json()
+    order = {'user_id': data['user_id'], 'product': data['product'], 'order_id': order_id, 'action': 'update'}
+
+    # Отправка сообщения об обновлении заказа
+    channel.basic_publish(exchange='microservices', routing_key='order', body=json.dumps(order))
+
+    return jsonify(order)
+
+
+# DELETE
+@app.route('/orders/<int:order_id>', methods=['DELETE'])
+def delete_order(order_id):
+    user_id = request.args.get('user_id')
+    order = {'user_id': user_id, 'order_id': order_id, 'action': 'delete'}
+
+    # Отправка сообщения об удалении заказа
+    channel.basic_publish(exchange='microservices', routing_key='order', body=json.dumps(order))
+
+    return jsonify({'result': True})
+
+
+if __name__ == '__main__':
+    app.run(port=5002)

basharin_sevastyan_lab_3/order_service/requirements.txt

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+Flask==3.0.0
+pika==1.3.2

basharin_sevastyan_lab_3/user_app/Dockerfile

@@ -1,8 +0,0 @@
-FROM python:3.9
-WORKDIR /app
-COPY requirements.txt .
-RUN pip install -r requirements.txt
-COPY . .
-COPY var/data /var/data
-COPY var/result /var/result
-CMD ["python", "main.py"]

basharin_sevastyan_lab_3/user_app/main.py

@@ -1,6 +0,0 @@
-from flask import Flask
-
-app = Flask(__name__)
-
-if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=5000)

basharin_sevastyan_lab_3/user_app/requirements.txt

@@ -1,2 +0,0 @@
-Flask==3.0.0
-Werkzeug==3.0.1

basharin_sevastyan_lab_3/user_service/Dockerfile

@@ -0,0 +1,6 @@
+FROM python:3.11
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+CMD ["python", "user_service.py"]

basharin_sevastyan_lab_3/user_service/requirements.txt

@@ -0,0 +1,2 @@
+Flask==3.0.0
+pika==1.3.2

basharin_sevastyan_lab_3/user_service/user_service.py

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+# user_service.py
+from flask import Flask, request, jsonify
+import pika
+import json
+
+app = Flask(__name__)
+
+# Конфигурация RabbitMQ
+connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
+channel = connection.channel()
+channel.exchange_declare(exchange='microservices', exchange_type='direct')
+
+users = []
+
+
+# Обработка сообщений о заказах
+def process_order_message(ch, method, properties, body):
+    data = json.loads(body)
+    user_id = data.get('user_id')
+
+    if data['action'] == 'create':
+        # Создание заказа у пользователя
+        user = next((user for user in users if user['id'] == user_id), None)
+        if user:
+            order_id = len(user.get('orders', [])) + 1
+            order = {'id': order_id, 'product': data['product']}
+            user.setdefault('orders', []).append(order)
+            print(f"Order created for user {user_id}: {order}")
+        else:
+            print(f"User not found for order creation: {user_id}")
+
+    elif data['action'] == 'update':
+        # Обновление заказа у пользователя
+        user = next((user for user in users if user['id'] == user_id), None)
+        if user:
+            order_id = data.get('order_id')
+            order = next((order for order in user['orders'] if order['id'] == order_id), None)
+            if order:
+                order['product'] = data['product']
+                print(f"Order updated for user {user_id}: {order}")
+            else:
+                print(f"Order not found for update: {order_id}")
+        else:
+            print(f"User not found for order update: {user_id}")
+
+    elif data['action'] == 'delete':
+        # Удаление заказа у пользователя
+        user = next((user for user in users if user['id'] == user_id), None)
+        if user:
+            order_id = data.get('order_id')
+            user['orders'] = [order for order in user.get('orders', []) if order['id'] != order_id]
+            print(f"Order deleted for user {user_id}: {order_id}")
+        else:
+            print(f"User not found for order deletion: {user_id}")
+
+
+# Начало прослушивания сообщений о заказах
+channel.queue_declare(queue='order_service', durable=True)
+channel.queue_bind(exchange='microservices', queue='order_service', routing_key='order')
+channel.basic_consume(queue='order_service', on_message_callback=process_order_message, auto_ack=True)
+
+print('User service is waiting for order messages. To exit press CTRL+C')
+channel.start_consuming()
+
+
+# CRUD операции для пользователей
+# CREATE
+@app.route('/users', methods=['POST'])
+def create_user():
+    data = request.get_json()
+    user = {'id': len(users) + 1, 'name': data['name']}
+    users.append(user)
+    return jsonify(user), 201
+
+
+# READ
+@app.route('/users/<int:user_id>', methods=['GET'])
+def get_user(user_id):
+    user = next((user for user in users if user['id'] == user_id), None)
+    if user:
+        return jsonify(user)
+    else:
+        return jsonify({'error': 'User not found'}), 404
+
+
+# UPDATE
+@app.route('/users/<int:user_id>', methods=['PUT'])
+def update_user(user_id):
+    user = next((user for user in users if user['id'] == user_id), None)
+    if user:
+        data = request.get_json()
+        user['name'] = data['name']
+        return jsonify(user)
+    else:
+        return jsonify({'error': 'User not found'}), 404
+
+
+# DELETE
+@app.route('/users/<int:user_id>', methods=['DELETE'])
+def delete_user(user_id):
+    global users
+    users = [user for user in users if user['id'] != user_id]
+    return jsonify({'result': True})
+
+
+if __name__ == '__main__':
+    app.run(port=5001)