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ingress-nginx-helm/docs/examples/customization/sysctl/README.md
Josh Soref 1614027cd4
Minor documentation cleanup (#7826) 
* clarify link

* Add section headers

* console blocks

* grpc example json was not valid

* multi-tls update text

The preceding point 1 related to 4f2cb51ef8/ingress/controllers/nginx/examples/ingress.yaml
and the deployments referenced in 4f2cb51ef8/ingress/controllers/nginx/examples/README.md

They are not relevant to the current instructions.

* add whitespace around parens

* grammar

setup would be a proper noun, but it is not the intended concept, which is a state

* grammar

* is-only
* via

* Use bullets for choices

* ingress-controller

nginx is a distinct brand.

generally this repo talks about ingress-controller, although it is quite inconsistent about how...

* drop stray paren

* OAuth is a brand and needs an article here

also GitHub is a brand

* Indent text under numbered lists

* use e.g.

* Document that customer header config maps changes do not trigger updates

This should be removed if
https://github.com/kubernetes/ingress-nginx/issues/5238
is fixed.

* article

* period

* infinitive verb + period

* clarify that the gRPC server is responsible for listening for TCP traffic and not some other part of the backend application

* avoid using ; and reword

* whitespace

* brand: gRPC

* only-does is the right form

`for` adds nothing here

* spelling: GitHub

* punctuation

`;` is generally not the right punctuation...

* drop stray `to`

* sentence

* backticks

* fix link

* Improve readability of compare/vs

* Renumber list

* punctuation

* Favor Ingress-NGINX and Ingress NGINX

* Simplify custom header restart text

* Undo typo damage

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
2022-01-16 16:57:28 -08:00

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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.