Feat: The crawler works on docker

.dockerignore

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+# Jetbrains
+.idea
+
+# Docker
+Dockerfile
+docker-compose.yml
+
+# Git
+.gitignore
+
+# venv
+.venv

.gitignore

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+# jetbrains
+.idea/
+
+# venv
+.venv

Dockerfile

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+# Utilise une image Python officielle
+FROM python:3.13-slim
+
+
+# Copie le projet dans le conteneur
+WORKDIR /app
+
+# Copie les dépendances du projet
+COPY requirements.txt .
+
+# Installe les dépendances
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY ./crawler2 .
+COPY scrapy.cfg .
+
+# Commande pour lancer le spider
+CMD ["scrapy", "crawl", "crawler_spider"]

crawler2/items.py

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+# Define here the models for your scraped items
+#
+# See documentation in:
+# https://docs.scrapy.org/en/latest/topics/items.html
+
+import scrapy
+
+
+class Crawler2Item(scrapy.Item):
+    # define the fields for your item here like:
+    # name = scrapy.Field()
+    pass

crawler2/middlewares.py

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+# Define here the models for your spider middleware
+#
+# See documentation in:
+# https://docs.scrapy.org/en/latest/topics/spider-middleware.html
+
+from scrapy import signals
+
+# useful for handling different item types with a single interface
+from itemadapter import ItemAdapter
+
+
+class Crawler2SpiderMiddleware:
+    # Not all methods need to be defined. If a method is not defined,
+    # scrapy acts as if the spider middleware does not modify the
+    # passed objects.
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        # This method is used by Scrapy to create your spiders.
+        s = cls()
+        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
+        return s
+
+    def process_spider_input(self, response, spider):
+        # Called for each response that goes through the spider
+        # middleware and into the spider.
+
+        # Should return None or raise an exception.
+        return None
+
+    def process_spider_output(self, response, result, spider):
+        # Called with the results returned from the Spider, after
+        # it has processed the response.
+
+        # Must return an iterable of Request, or item objects.
+        for i in result:
+            yield i
+
+    def process_spider_exception(self, response, exception, spider):
+        # Called when a spider or process_spider_input() method
+        # (from other spider middleware) raises an exception.
+
+        # Should return either None or an iterable of Request or item objects.
+        pass
+
+    async def process_start(self, start):
+        # Called with an async iterator over the spider start() method or the
+        # maching method of an earlier spider middleware.
+        async for item_or_request in start:
+            yield item_or_request
+
+    def spider_opened(self, spider):
+        spider.logger.info("Spider opened: %s" % spider.name)
+
+
+class Crawler2DownloaderMiddleware:
+    # Not all methods need to be defined. If a method is not defined,
+    # scrapy acts as if the downloader middleware does not modify the
+    # passed objects.
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        # This method is used by Scrapy to create your spiders.
+        s = cls()
+        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
+        return s
+
+    def process_request(self, request, spider):
+        # Called for each request that goes through the downloader
+        # middleware.
+
+        # Must either:
+        # - return None: continue processing this request
+        # - or return a Response object
+        # - or return a Request object
+        # - or raise IgnoreRequest: process_exception() methods of
+        #   installed downloader middleware will be called
+        return None
+
+    def process_response(self, request, response, spider):
+        # Called with the response returned from the downloader.
+
+        # Must either;
+        # - return a Response object
+        # - return a Request object
+        # - or raise IgnoreRequest
+        return response
+
+    def process_exception(self, request, exception, spider):
+        # Called when a download handler or a process_request()
+        # (from other downloader middleware) raises an exception.
+
+        # Must either:
+        # - return None: continue processing this exception
+        # - return a Response object: stops process_exception() chain
+        # - return a Request object: stops process_exception() chain
+        pass
+
+    def spider_opened(self, spider):
+        spider.logger.info("Spider opened: %s" % spider.name)

crawler2/pipelines.py

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+# Define your item pipelines here
+#
+# Don't forget to add your pipeline to the ITEM_PIPELINES setting
+# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html
+
+
+# useful for handling different item types with a single interface
+import pymongo
+from bs4 import BeautifulSoup
+
+
+# crawler2/pipelines.py
+class CleanTextPipeline:
+    def process_item(self, item, spider):
+        soup = BeautifulSoup(item["content"], "html.parser")
+        clean_text = soup.get_text(strip=True)
+        item["content"] = " ".join(clean_text.split())
+        return item
+
+
+class MongoDBPipeline:
+    def __init__(self, mongo_uri, mongo_db, mongo_collection, mongo_user, mongo_password):
+        self.mongo_uri = mongo_uri
+        self.mongo_db = mongo_db
+        self.mongo_collection = mongo_collection
+        self.mongo_user = mongo_user
+        self.mongo_password = mongo_password
+        self.client = None
+        self.db = None
+        self.collection = None
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        return cls(
+            mongo_uri=crawler.settings.get("MONGO_URI", "mongodb://mongodb:27017"),
+            mongo_db=crawler.settings.get("MONGO_DATABASE", "web_crawler"),
+            mongo_collection=crawler.settings.get("MONGO_COLLECTION", "pages"),
+            mongo_user=crawler.settings.get("MONGO_USER", "admin"),
+            mongo_password=crawler.settings.get("MONGO_PASSWORD", "Admin@123"),
+        )
+
+    def open_spider(self, spider):
+        # Utilise l'URI avec authentification
+        self.client = pymongo.MongoClient(
+            self.mongo_uri,
+            username=self.mongo_user,
+            password=self.mongo_password,
+            authSource="admin"  # Base de données d'authentification
+        )
+        self.db = self.client[self.mongo_db]
+        self.collection = self.db[self.mongo_collection]
+
+    def process_item(self, item, spider):
+        if not self.collection.find_one({"url": item["url"]}):
+            self.collection.insert_one(dict(item))
+        return item
+
+    def close_spider(self, spider):
+        self.client.close()

crawler2/settings.py

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+# Scrapy settings for crawler2 project
+#
+# For simplicity, this file contains only settings considered important or
+# commonly used. You can find more settings consulting the documentation:
+#
+#     https://docs.scrapy.org/en/latest/topics/settings.html
+#     https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
+#     https://docs.scrapy.org/en/latest/topics/spider-middleware.html
+from scrapy.settings.default_settings import RANDOMIZE_DOWNLOAD_DELAY, RETRY_TIMES, RETRY_HTTP_CODES, \
+    DOWNLOADER_MIDDLEWARES
+
+BOT_NAME = "crawler2"
+
+SPIDER_MODULES = ["crawler2.spiders"]
+NEWSPIDER_MODULE = "crawler2.spiders"
+
+ADDONS = {}
+
+
+# Crawl responsibly by identifying yourself (and your website) on the user-agent
+USER_AGENT = "Mozilla/5.0 (compatible; crawler2/+thomassazeratdev@gmail.com)"
+
+# Obey robots.txt rules
+ROBOTSTXT_OBEY = True
+DOWNLOAD_DELAY = 1
+RANDOMIZE_DOWNLOAD_DELAY = True
+
+# Concurrency and throttling settings
+CONCURRENT_REQUESTS = 4
+CONCURRENT_REQUESTS_PER_DOMAIN = 2
+CONCURRENT_REQUESTS_PER_IP = 2
+
+# Errors handling
+RETRY_TIMES = 3
+RETRY_HTTP_CODES = [500, 502, 503, 504, 400, 403, 404, 408]
+
+DOWNLOADER_MIDDLEWARES = {
+    'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware': None,  # Désactive l'user-agent par défaut
+    'scrapy.downloadermiddlewares.retry.RetryMiddleware': 90,  # Enable the retries
+}
+
+ITEM_PIPELINES = {
+    'crawler2.pipelines.CleanTextPipeline': 300,  # Nettoyage des données
+    'crawler2.pipelines.MongoDBPipeline': 300, # Sauvegarde sur Mongo
+}
+
+# Disable cookies (enabled by default)
+#COOKIES_ENABLED = False
+
+# Disable Telnet Console (enabled by default)
+#TELNETCONSOLE_ENABLED = False
+
+# Override the default request headers:
+#DEFAULT_REQUEST_HEADERS = {
+#    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+#    "Accept-Language": "en",
+#}
+
+# Enable or disable spider middlewares
+# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html
+#SPIDER_MIDDLEWARES = {
+#    "crawler2.middlewares.Crawler2SpiderMiddleware": 543,
+#}
+
+# Enable or disable downloader middlewares
+# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
+#DOWNLOADER_MIDDLEWARES = {
+#    "crawler2.middlewares.Crawler2DownloaderMiddleware": 543,
+#}
+
+# Enable or disable extensions
+# See https://docs.scrapy.org/en/latest/topics/extensions.html
+#EXTENSIONS = {
+#    "scrapy.extensions.telnet.TelnetConsole": None,
+#}
+
+# Configure item pipelines
+# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html
+#ITEM_PIPELINES = {
+#    "crawler2.pipelines.Crawler2Pipeline": 300,
+#}
+
+# Enable and configure the AutoThrottle extension (disabled by default)
+# See https://docs.scrapy.org/en/latest/topics/autothrottle.html
+#AUTOTHROTTLE_ENABLED = True
+# The initial download delay
+#AUTOTHROTTLE_START_DELAY = 5
+# The maximum download delay to be set in case of high latencies
+#AUTOTHROTTLE_MAX_DELAY = 60
+# The average number of requests Scrapy should be sending in parallel to
+# each remote server
+#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
+# Enable showing throttling stats for every response received:
+#AUTOTHROTTLE_DEBUG = False
+
+# Enable and configure HTTP caching (disabled by default)
+# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
+#HTTPCACHE_ENABLED = True
+#HTTPCACHE_EXPIRATION_SECS = 0
+#HTTPCACHE_DIR = "httpcache"
+#HTTPCACHE_IGNORE_HTTP_CODES = []
+#HTTPCACHE_STORAGE = "scrapy.extensions.httpcache.FilesystemCacheStorage"
+
+# Set settings whose default value is deprecated to a future-proof value
+FEED_EXPORT_ENCODING = "utf-8"

crawler2/spiders/__init__.py

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+# This package will contain the spiders of your Scrapy project
+#
+# Please refer to the documentation for information on how to create and manage
+# your spiders.
+import scrapy
+from scrapy.linkextractors import LinkExtractor
+
+
+class CrawlerSpider(scrapy.Spider):
+    name = "crawler_spider"
+    start_urls = ["https://quotes.toscrape.com"]
+    link_extractor = LinkExtractor(
+        deny_extensions=["pdf", "jpg", "png", "gif"],  # Éviter les fichiers
+        canonicalize=True,  # Normaliser les URLs
+        unique=True,  # Éviter les doublons
+    )
+
+    def parse(self, response):
+        yield {
+            "url": response.url,
+            "title": response.css("title::text").get(),
+            "content": " ".join(response.css("p, h1, h2, h3, h4, h5, a::text").getall()),
+            "links": response.css("a::attr(href)").getall()
+        }
+
+        for href in response.css("a::attr(href)").getall():
+            if href.startswith("/") or self.start_urls[0] in href:
+                yield response.follow(href, callback=self.parse)

docker-compose.yml

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+services:
+  mongodb:
+    image: mongo:8.0-noble
+    container_name: mongodb_crawler
+    restart: unless-stopped
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: admin
+      MONGO_INITDB_ROOT_PASSWORD: Admin@123
+    volumes:
+      - mongodb_data:/data/db
+    ports:
+      - "27017:27017"
+    networks:
+      - crawler_network
+
+  crawler:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: web_crawler
+    depends_on:
+      - mongodb
+    environment:
+      MONGO_URI: mongodb://mongodb:27017
+      MONGO_DATABASE: web_pages
+      MONGO_COLLECTION: pages
+    volumes:
+      - .:/app
+    networks:
+      - crawler_network
+
+volumes:
+  mongodb_data:
+
+networks:
+  crawler_network:
+    driver: bridge

scrapy.cfg

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+# Automatically created by: scrapy startproject
+#
+# For more information about the [deploy] section see:
+# https://scrapyd.readthedocs.io/en/latest/deploy.html
+
+[settings]
+default = crawler2.settings
+
+[deploy]
+#url = http://localhost:6800/
+project = crawler2