Add week 5 materials

2026-10-07 20:52:26 +03:00
parent 209c66683d
commit af8099db34
34 changed files with 471 additions and 0 deletions
@@ -0,0 +1,13 @@
+FROM python:3.8
+
+RUN mkdir /root/app/
+WORKDIR /root/app/
+
+RUN pip install pika
+
+COPY . .
+
+ENV PYTHONPATH "${PYTHONPATH}:/root/app/"
+EXPOSE 5000
+
+CMD ["bash", "-c", "while ! curl -s rabbitmq:15672 > /dev/null; do echo waiting for rabbitmq; sleep 3; done; python -u consumer.py"]
@@ -0,0 +1,21 @@
+import pika
+import time
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq', port=5672))
+channel = connection.channel()
+
+
+def callback(ch, method, properties, body):
+    if body.startswith(b'warning'):
+        print('got new warning (body = "{}")'.format(body))
+        ch.basic_ack(delivery_tag=method.delivery_tag)
+    elif body.startswith(b'error'):
+        print('got new error (body = "{}")'.format(body))
+        ch.basic_ack(delivery_tag=method.delivery_tag)
+    else:
+        ch.basic_nack(delivery_tag=method.delivery_tag, requeue=False)
+
+
+time.sleep(1)
+channel.basic_consume(queue='logs', on_message_callback=callback)
+channel.start_consuming()
@@ -0,0 +1,13 @@
+FROM python:3.8
+
+RUN mkdir /root/app/
+WORKDIR /root/app/
+
+RUN pip install pika
+
+COPY . .
+
+ENV PYTHONPATH "${PYTHONPATH}:/root/app/"
+EXPOSE 5000
+
+CMD ["bash", "-c", "while ! curl -s rabbitmq:15672 > /dev/null; do echo waiting for rabbitmq; sleep 3; done; python -u dead_letter_consumer.py"]
@@ -0,0 +1,15 @@
+import pika
+import time
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq', port=5672))
+channel = connection.channel()
+
+
+def callback(ch, method, properties, body):
+    print('got new unprocessed message (body = "{}")'.format(body))
+    ch.basic_ack(delivery_tag=method.delivery_tag)
+
+
+time.sleep(1)
+channel.basic_consume(queue='unprocessed_logs', on_message_callback=callback)
+channel.start_consuming()
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+version: "3"
+
+services:
+    rabbitmq:
+        image: rabbitmq:3-management
+        hostname: "rabbitmq"
+        ports:
+            - "15672:15672"
+            - "5672:5672"
+    producer:
+        build: 
+            context: producer
+    consumer:
+        build: 
+            context: consumer
+    dead_letter_consumer:
+        build: 
+            context: dead_letter_consumer
@@ -0,0 +1,13 @@
+FROM python:3.8
+
+RUN mkdir /root/app/
+WORKDIR /root/app/
+
+RUN pip install pika
+
+COPY . .
+
+ENV PYTHONPATH "${PYTHONPATH}:/root/app/"
+EXPOSE 5000
+
+CMD ["bash", "-c", "while ! curl -s rabbitmq:15672 > /dev/null; do echo waiting for rabbitmq; sleep 3; done; python -u producer.py"]
@@ -0,0 +1,16 @@
+import pika
+import sys
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq', port=5672))
+channel = connection.channel()
+
+channel.queue_declare(queue='unprocessed_logs')
+channel.queue_declare(queue='logs', arguments={
+    'x-max-priority': 5,
+    'x-dead-letter-exchange' : '',
+    'x-dead-letter-routing-key' : 'unprocessed_logs'})
+
+channel.basic_publish(exchange='', routing_key='logs', body='warning', properties=pika.BasicProperties(priority=1))
+channel.basic_publish(exchange='', routing_key='logs', body='error', properties=pika.BasicProperties(priority=5))
+channel.basic_publish(exchange='', routing_key='logs', body='info', properties=pika.BasicProperties(priority=1))
+connection.close()