15 lines
656 B
Markdown
15 lines
656 B
Markdown
# Sysctl tuning
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This example aims to demonstrate the use of an Init Container to adjust sysctl default values using `kubectl patch`
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```console
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kubectl patch deployment -n ingress-nginx nginx-ingress-controller \
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--patch="$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/sysctl/patch.json)"
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```
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**Changes:**
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- Backlog Queue setting `net.core.somaxconn` from `128` to `32768`
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- Ephemeral Ports setting `net.ipv4.ip_local_port_range` from `32768 60999` to `1024 65000`
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In a [post from the NGINX blog](https://www.nginx.com/blog/tuning-nginx/), it is possible to see an explanation for the changes.
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