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k8s-infra-cherrypick-robot 1f3a3fb3f9 Images: Bump Alpine to v3.21. (#12529 ) Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Marco Ebert <marco_ebert@icloud.com>		2024-12-21 00:54:11 +01:00
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patch.json	Images: Bump Alpine to v3.21. (#12529 )	2024-12-21 00:54:11 +01:00
README.md	Minor documentation cleanup (#7826 )	2022-01-16 16:57:28 -08:00

README.md

Sysctl tuning

This example aims to demonstrate the use of an Init Container to adjust sysctl default values using kubectl patch.

kubectl patch deployment -n ingress-nginx ingress-nginx-controller \
    --patch="$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/docs/examples/customization/sysctl/patch.json)"

Changes:

Backlog Queue setting net.core.somaxconn from 128 to 32768
Ephemeral Ports setting net.ipv4.ip_local_port_range from 32768 60999 to 1024 65000

In a post from the NGINX blog, it is possible to see an explanation for the changes.