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docs: throttling on Kubernetes

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soulgalore 2024-02-14 23:25:08 +01:00
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docs/_posts/2019-09-11-sitespeed.io-10.0.md
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## Run your tests on Kubernetes
One of the most asked question the last years has been how do we test using Kubernetes? The problem has been that there is no way to limit the connectivity. We fixed that by integrating [TSProxy](https://github.com/WPO-Foundation/tsproxy) (a Traffic-shaping SOCKS5 proxy built by [Patrick Meenan](https://twitter.com/patmeenan)). This is actually the second time we done it, but this time there's been a major fix on TSProxy that makes it work as it should on Linux.
You need Python 2.7 to run TSProxy and you enable it like this:
~~~bash
sitespeed.io --browsertime.connectivity.engine tsproxy -c cable https://www.sitespeed.io/
~~~
Stay tuned for a more in depth follow up on running Sitespeed in Kubernetes or drop into [our slack](https://sitespeedio.herokuapp.com) and tell us about how you are running it!
One of the most asked question the last years has been how do we test using Kubernetes? The problem has been that there is no way to limit the connectivity. You should try out the [bandwith plugin](https://www.cni.dev/plugins/current/meta/bandwidth/) that could help you with that.
## Breaking changes

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docs/documentation/sitespeed.io/web-performance-testing-in-practice/index.md
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Number of open files can be quite low on Linux, check it with `ulimit -a`. Increase following [these instructions](https://linuxhint.com/increase-open-file-limit-ubuntu/).
#### Running on Kubernetes
Do not use Kubernetes for performance tests. The problem running on Kubernetes is to get stable connectivity. On Kubernetes you cannot use [tc](https://tldp.org/HOWTO/Traffic-Control-HOWTO/intro.html) or Docker networks to set the connectivity.
If you are gonna use Kubernetes, you should use the [bandwith plugin](https://www.cni.dev/plugins/current/meta/bandwidth/) to set the connectivity. If you Kubernetes user, please share your configiratuon and setup so we can add that to the documentation.
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