degtyarev_mikhail_lab_3/category_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 . /app
+CMD ["gunicorn", "--bind", "0.0.0.0:5001", "category_service:app"]

degtyarev_mikhail_lab_3/category_service/category_service.py

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+# category_service.py
+import json
+import time
+from flask import Flask, request, jsonify
+
+app = Flask(__name__)
+categories = []
+
+@app.route('/event', methods=['POST'])
+def event():
+    data = request.get_json()
+    print(data)
+    input_category_id = data.get('category_id')
+
+    if data['action'] == 'create':
+        category = next((category for category in categories if category['id'] == input_category_id), None)
+        if category:
+            post_id = len(category.get('posts', [])) + 1
+            post = {'id': post_id, 'post': data['post']}
+            category.setdefault('posts', []).append(post)
+            print(f"Post created for category_id {input_category_id}: {post}")
+        else:
+            print(f"Category not found for post creation: {input_category_id}")
+
+    elif data['action'] == 'update':
+        category = next((category for category in categories if category['id'] == input_category_id), None)
+        if category:
+            post_id = data.get('id')
+            post = next((p for p in category['posts'] if p['id'] == post_id), None)
+            if post:
+                post['post'] = data['post']
+                print(f"Post updated for category_id {input_category_id}: {post}")
+            else:
+                print(f"Post not found for update: {post_id}")
+        else:
+            print(f"Category not found for post update: {input_category_id}")
+
+    elif data['action'] == 'delete':
+        category = next((category for category in categories if category['id'] == input_category_id), None)
+        if category:
+            post_id = category.get('id')
+            category['posts'] = [p for p in category.get('posts', []) if p['id'] != post_id]
+            print(f"Post deleted for category_id {input_category_id}: {post_id}")
+        else:
+            print(f"Category not found for post deletion: {input_category_id}")
+    return jsonify({'result': True})
+
+@app.route('/', methods=['GET'])
+def show_categories():
+    return jsonify(categories)
+
+@app.route('/add/<string:name>', methods=['POST'])
+def create_category(name):
+    if request.method == 'POST':
+        if len(categories) == 0:
+            id = 1
+        else:
+            id = categories[-1]['id'] + 1
+        category = {'id': id, 'name': name}
+        categories.append(category)
+        return jsonify(category)
+
+@app.route('/get/<int:id>', methods=['GET'])
+def get_category(id):
+    found_category = next((category for category in categories if category['id'] == id), None)
+    if found_category:
+        return jsonify(found_category)
+    else:
+        return jsonify({'error': 'Category not found'})
+
+@app.route('/upd/<int:id>_<string:name>', methods=['PUT'])
+def update_category(id, name):
+    category = next((category for category in categories if category['id'] == id), None)
+    if category:
+        category['name'] = name
+        return jsonify(category)
+    else:
+        return jsonify({'error': 'Category not found'})
+
+@app.route('/del/<int:id>', methods=['DELETE'])
+def delete_category(id):
+    global categories
+    categories = [category for category in categories if category['id'] != id]
+    return jsonify({'result': True})
+
+if __name__ == '__main__':
+    app.run(port=5001)

degtyarev_mikhail_lab_3/category_service/requirements.txt

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+Flask==3.0.0
+requests==2.31.0
+gunicorn==21.2.0

degtyarev_mikhail_lab_3/docker-compose.yaml

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+version: '3.8'
+
+services:
+  category-service:
+    build:
+      context: ./category_service
+    ports:
+      - "5001:5001"
+    networks:
+      - app
+    restart: always
+
+  post-service:
+    build:
+      context: ./post_service
+    ports:
+      - "5002:5002"
+    networks:
+      - app
+    restart: always
+
+  nginx:
+    image: nginx:latest
+    ports:
+      - "80:80"
+    depends_on:
+      - category-service
+      - post-service
+    networks:
+      - app
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/nginx.conf
+    restart: always
+
+networks:
+  app:
+    driver: bridge

degtyarev_mikhail_lab_3/nginx/Dockerfile

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

degtyarev_mikhail_lab_3/nginx/nginx.conf

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+events {
+    worker_connections 1024;
+}
+
+http {
+    server {
+        listen 80;
+        listen [::]:80;
+        server_name localhost;
+
+        location /category-service/ {
+            proxy_pass http://category-service:5001/;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location /post-service/ {
+            proxy_pass http://post-service:5002/;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+    }
+}

degtyarev_mikhail_lab_3/post_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 . /app
+CMD ["gunicorn", "--bind", "0.0.0.0:5002", "post_service:app"]

degtyarev_mikhail_lab_3/post_service/post_service.py

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+from json import dump
+
+from flask import Flask, request, jsonify
+import requests
+
+app = Flask(__name__)
+
+posts = []
+
+@app.route('/all', methods=['GET'])
+def show_posts():
+    return jsonify(posts)
+
+@app.route('/add/<int:category_id>_<string:post>', methods=['POST'])
+def create_post(category_id, post):
+    new_post = {
+        'id': len(posts) + 1,
+        'category_id': category_id,
+        'post': post,
+        'action': 'create'
+    }
+    posts.append(new_post)
+
+    response = requests.post("http://category-service:5001/event", json=new_post)
+
+    if response.status_code == 200:
+        return jsonify(new_post)
+    else:
+        return jsonify({'error': 'Failed to create post'})
+
+@app.route('/upd/<int:post_id>/<string:new_post>', methods=['PUT'])
+def update_post(post_id, new_post):
+    post = next((p for p in posts if p.get('id') == post_id), None)
+    if post:
+        post['post'] = new_post
+        post['action'] = 'update'
+
+        response = requests.post("http://category-service:5001/event", json=post)
+
+        if response.status_code == 200:
+            return jsonify({'message': 'Post updated successfully'})
+        else:
+            return jsonify({'error': 'Failed to update post'})
+    else:
+        return jsonify({'error': 'Post not found'})
+
+@app.route('/get/<int:post_id>', methods=['GET'])
+def get_post(post_id):
+    found_post = next((p for p in posts if p.get('id') == post_id), None)
+    if found_post:
+        read_post = {'id': found_post['id'],
+                     'category_id': found_post['category_id'],
+                     'post': found_post['post']}
+        return jsonify(read_post)
+    else:
+        return jsonify({'error': 'Post not found'})
+
+@app.route('/post/del_<int:post_id>', methods=['DELETE'])
+def delete_post(post_id):
+    global posts
+    deleted_post = next((p for p in posts if p.get('id') == post_id), None)
+
+    if deleted_post:
+        posts = [p for p in posts if p.get('id') != post_id]
+        deleted_post['action'] = 'delete'
+
+        response = requests.post("http://category-service:5001/event", json=deleted_post)
+
+        if response.status_code == 200:
+            return jsonify({'result': True})
+        else:
+            return jsonify({'error': 'Failed to delete post'})
+    else:
+        return jsonify({'error': 'Post not found'})
+
+if __name__ == '__main__':
+    app.run(port=5002)

degtyarev_mikhail_lab_3/post_service/requirements.txt

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+Flask==3.0.0
+requests==2.31.0
+gunicorn==21.2.0