ismailov_rovshan_lab_2 is ready
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ismailov_rovshan_lab_2/.gitignore
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ismailov_rovshan_lab_2/.gitignore
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data/
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result/
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result_first/
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result_second/
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datagen.py
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ismailov_rovshan_lab_2/README.md
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ismailov_rovshan_lab_2/README.md
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# Лабораторная работа №2
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## Описание
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Этот проект предоставляет 2 контейнера с простыми python-скриптами такими, что результат первого является исходными данными для второго.
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### 1. Варианты
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Для обеих программ был выбран вариант 1.
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Вариант первой программы: **1**. Ищет в каталоге /var/data файл с наибольшим количеством строк и перекладывает его в /var/result/data.txt.
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Вариант второй программы: **1**. Ищет набольшее число из файла /var/data/data.txt и сохраняет его вторую степень в /var/result/result.txt.
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## Структура Dockerfile
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Два Dockerfile имеют схожую структуру:
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`FROM python:3.12`
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`WORKDIR /app`
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`COPY main.py .`
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`VOLUME ["/var/data"]`
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`VOLUME ["/var/result"]`
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`CMD ["python", "main.py"]`
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## 3. Docker Compose
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`services:`
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`first:`
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`build: ./worker_1/`
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`volumes:`
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`- ./data:/var/data`
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`- ./result_first:/var/result`
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`second:`
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`build: ./worker_2/`
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`depends_on:`
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`- first`
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`volumes:`
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`- ./result_first:/var/data`
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`- ./result_second:/var/result`
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## 4. Запуск
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Для запуска использовать команду `docker compose up --build`
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Итог работы первой программы будет в папке `result_first`, а второй - в `result_second`.
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## Ссылка на видео: https://cloud.mail.ru/public/47de/JTUYTSUM2
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ismailov_rovshan_lab_2/docker-compose.yml
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ismailov_rovshan_lab_2/docker-compose.yml
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services:
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first:
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build: ./worker_1/
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volumes:
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- ./data:/var/data
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- ./result_first:/var/result
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second:
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build: ./worker_2/
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depends_on:
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- first
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volumes:
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- ./result_first:/var/data
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- ./result_second:/var/result
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ismailov_rovshan_lab_2/worker_1/Dockerfile
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ismailov_rovshan_lab_2/worker_1/Dockerfile
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FROM python:3.12
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WORKDIR /app
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COPY main.py .
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VOLUME ["/var/data"]
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VOLUME ["/var/result"]
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CMD ["python", "main.py"]
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ismailov_rovshan_lab_2/worker_1/main.py
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ismailov_rovshan_lab_2/worker_1/main.py
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import os
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import random
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CATALOG_PATH = "/var/data"
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RESULT_FILE = "/var/result/data.txt"
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def find_file_with_most_lines(directory):
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file_with_most_lines = None
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max_lines = 0
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for root, _, files in os.walk(directory):
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for file in files:
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filepath = os.path.join(root, file)
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try:
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with open(filepath, 'r', encoding='utf-8') as f:
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line_count = sum(1 for _ in f)
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if line_count > max_lines:
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max_lines = line_count
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file_with_most_lines = (filepath, line_count)
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except (OSError, UnicodeDecodeError) as e:
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print(f"Ошибка при обработке файла '{filepath}': {e}")
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return file_with_most_lines
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def copy_file(first, second):
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try:
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with open(second, "wb") as f_second, open(first, "rb") as f_first:
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while chunk := f_first.read(4096):
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f_second.write(chunk)
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print(f"Файл '{first}' успешно скопирован в '{second}'.")
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except Exception as e:
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print(f"Ошибка при копировании файла '{first}': {e}")
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def main():
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file_with_most_lines = find_file_with_most_lines(CATALOG_PATH)
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if file_with_most_lines:
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first_path, _ = file_with_most_lines
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second_path = RESULT_FILE
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copy_file(first_path, second_path)
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else:
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print("Файлы не найдены")
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def generate_random_numbers(filename, count):
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with open(filename, "w") as f:
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for _ in range(count):
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num = random.randint(0, 1000)
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f.write(str(num) + "\n")
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print(f"Числа записаны в '{filename}'.")
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if __name__ == "__main__":
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generate_random_numbers("/var/data/data1.txt", 25)
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generate_random_numbers("/var/data/data2.txt", 30)
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generate_random_numbers("/var/data/data3.txt", 27)
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generate_random_numbers("/var/data/data4.txt", 12)
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generate_random_numbers("/var/data/data5.txt", 19)
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print("Файлы сгенерированы")
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main()
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6
ismailov_rovshan_lab_2/worker_2/Dockerfile
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ismailov_rovshan_lab_2/worker_2/Dockerfile
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FROM python:3.12
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WORKDIR /app
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COPY main.py .
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VOLUME ["/var/data"]
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VOLUME ["/var/result"]
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CMD ["python", "main.py"]
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ismailov_rovshan_lab_2/worker_2/main.py
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ismailov_rovshan_lab_2/worker_2/main.py
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DATA_FILE = "/var/data/data.txt"
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RESULT_FILE = "/var/result/result.txt"
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def find_biggest_number(data_file):
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try:
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with open(data_file, "r") as f:
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numbers = [int(line.strip()) for line in f.readlines()]
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biggest_num = max(numbers)
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return biggest_num
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except ValueError as e:
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print(f"Ошибка преобразования строки: {e}")
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except Exception as e:
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print(f"Ошибка чтения файла '{data_file}': {e}")
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return None
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def square_number(num):
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return num**2
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def write_result(result_file, result):
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try:
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with open(result_file, "w") as f:
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f.write(str(result))
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print(f"Результат '{result}' успешно передан в '{result_file}'.")
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except Exception as e:
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print(f"Ошибка фиксации результата в файл '{result_file}': {e}")
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def main():
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biggest_num = find_biggest_number(DATA_FILE)
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if biggest_num is not None:
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result = square_number(biggest_num)
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write_result(RESULT_FILE, result)
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print(result)
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else:
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print("В файле нет чисел")
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if __name__ == "__main__":
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main()
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