whentimeslows/website
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #30048 from sftim/20211011_tidy_kpng_article

Browse Source 
Tidy kpng article
This commit is contained in:
Kubernetes Prow Robot
2021-10-11 09:24:40 -07:00
committed by GitHub
parent 873a25adf7 cde171c42a
commit 0c69a1939e
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
content/en/blog/_posts/2021-10-18-kpng-specialized-proxiers.md
+4 -4
View File
@@ -5,7 +5,7 @@ date: 2021-10-18
slug: use-kpng-to-write-specialized-kube-proxiers slug: use-kpng-to-write-specialized-kube-proxiers
--- ---
Authors: Lars Ekman, Ericsson **Author**: Lars Ekman (Ericsson)
The post will show you how to create a specialized service kube-proxy The post will show you how to create a specialized service kube-proxy
style network proxier using Kubernetes Proxy NG style network proxier using Kubernetes Proxy NG
@@ -210,12 +210,12 @@ podip=$(cat /tmp/out | jq -r '.Endpoints[]|select(.Local == true)|select(.IPs.V6
ip6tables -t nat -A PREROUTING -d $xip/128 -j DNAT --to-destination $podip ip6tables -t nat -A PREROUTING -d $xip/128 -j DNAT --to-destination $podip
``` ```
Assuming the json output above is stored in `/tmp/out` ([jq](https://stedolan.github.io/jq/) is an *awesome* program!). Assuming the JSON output above is stored in `/tmp/out` ([jq](https://stedolan.github.io/jq/) is an *awesome* program!).
As this is an example we make it really simple for ourselves by using As this is an example we make it really simple for ourselves by using
a minor variation of the `kpng-json` backend above. Instead of just a minor variation of the `kpng-json` backend above. Instead of just
printing, a program is called and the json output is passed as `stdin` printing, a program is called and the JSON output is passed as `stdin`
to that program. The backend can be tested stand-alone: to that program. The backend can be tested stand-alone:
``` ```
@@ -233,7 +233,7 @@ While [kpng](https://github.com/kubernetes-sigs/kpng) is in early
stage of development this post wants to show how you may build your stage of development this post wants to show how you may build your
own specialized K8s proxiers in the future. The only thing your own specialized K8s proxiers in the future. The only thing your
applications need to do is to add the applications need to do is to add the
`service.kubernetes.io/service-proxy-name` label in the service `service.kubernetes.io/service-proxy-name` label in the Service
manifest. manifest.
It is a tedious process to get new features into the `kube-proxy` and It is a tedious process to get new features into the `kube-proxy` and