Containerized Crawler Deployment Tutorial: Docker Image Resource Control Policies

Hands-on Crawler Resource Management with Docker

Brothers engaged in crawling should understand that the biggest headache is the server resources like a wild horse running around. Today, we will use Docker as a magic tool, with ipipgo proxy IP service, the resource control arrangements to make it clear.

Why do I have to use Docker?

Traditional deployment is like setting up a stall - the program files are all over the place, while Docker packs the whole environment into a container and moves it wherever you want. Especially when using proxy IP, you canIP configuration for isolating different crawler instances, to avoid the oopsie of one's own people hitting one's own people.

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Three axes of resource control

1. CPU limit::--cpus=1.5 This way, you can make sure you have enough food without wasting it.
2. Memory Red Line::-m 512m Put a hard top on it to prevent memory leaks from crashing the system.
3. network speed limit::--network=container:ipipgo_proxy Managing Proxy IP Traffic with a Standalone Network Stack

Proxy IP real-world configuration

This is where we bring out ouripipgoservice now, and messing with it like this in the Dockerfile:

 Configuring Dynamic IP Pools
ENV IPIPGO_APIKEY="Your Exclusive Key"
ENV IPIPGO_ROTATE=300 5 minutes to change IPs

Remember to mount the IP configuration file in docker-compose so that multiple crawler instances canAutomatic assignment of different export IPsYou can also use it to create your own website, so you don't have to be afraid of the target website blocking your IP anymore.

Guidelines on demining of common problems

Q: What should I do if the image always fails to pack?
A: It's likely that there are too many dependencies, so use a multi-stage build, install the dependencies first and then copy the necessary files.

Q: I can't connect to ipipgo's IP all of a sudden?
A: Check the IP whitelisting settings and remember to configure the auto-switching threshold if it's an enterprise package

Q: Crawler slows down after limiting CPU?
A: Try--cpu-sharesParameters adjust weights, don't just limit them

Lastly, I'd like to apologize for the use ofipipgoThe enterprise-class proxy package, together with Docker's port mapping feature, enables theMillisecond IP switchingThe first thing I'd like to do is to get the best out of the world. Their dynamic residential IP truly stable, our team measured three consecutive days of crawling did not trigger anti-climbing, the need for a high stash of proxy brothers can go to the official website to take a look.

(Note: Remember to adjust the heartbeat detection interval according to business needs when deploying, don't make people's web servers hang. When encountering a CAPTCHA storm, reasonably use ipipgo's pay-per-use model, the cost can save a big chunk.)