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Add support for resource recommendations using Robusta KRR (#2399) 

* Adding Robusta KRR as a K9s  plugin

* Fixed file extension

* Updated details for simplicity

* Updated Author and dependency details
mine
Pavan Gudiwada 2024-01-02 23:03:11 +05:30 committed by GitHub
parent 39d93223d9
commit a766329083
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2 changed files with 39 additions and 10 deletions
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21
plugins/README.md
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@ -4,16 +4,17 @@ K9s plugins extend the tool to provide additional functionality via actions to f
Following is an example of some of plugin files in this directory. Other files are not listed in this table. Following is an example of some of plugin files in this directory. Other files are not listed in this table.
| Plugin-Name | Description | Available on Views | Shortcut | Kubectl plugin, external dependencies | | Plugin-Name | Description | Available on Views | Shortcut | Kubectl plugin, external dependencies |
|--------------------|------------------------------------------------------------------|--------------------|----------|---------------------------------------------------------------------------------------| |--------------------|------------------------------------------------------------------|--------------------------|----------|---------------------------------------------------------------------------------------|
| debug-container.yml| Add [ephemeral debug container][1]<br>([nicolaka/netshoot][2]) | containers | Shift-d | | | debug-container.yml| Add [ephemeral debug container][1]<br>([nicolaka/netshoot][2]) | containers | Shift-d | |
| dive.yml | Dive image layers | containers | d | [Dive](https://github.com/wagoodman/dive) | | dive.yml | Dive image layers | containers | d | [Dive](https://github.com/wagoodman/dive) |
| get-all.yml | get all resources in a namespace | all | g | [Krew](https://krew.sigs.k8s.io/), [ketall](https://github.com/corneliusweig/ketall/) | | get-all.yml | get all resources in a namespace | all | g | [Krew](https://krew.sigs.k8s.io/), [ketall](https://github.com/corneliusweig/ketall/) |
| job_suspend.yml | Suspends a running cronjob | cronjobs | Ctrl-s | | | job_suspend.yml | Suspends a running cronjob | cronjobs | Ctrl-s | |
| k3d_root_shell.yml | Root shell to k3d container | containers | Shift-s | [jq](https://stedolan.github.io/jq/) | | k3d_root_shell.yml | Root shell to k3d container | containers | Shift-s | [jq](https://stedolan.github.io/jq/) |
| log_stern.yml | View resource logs using stern | pods | Ctrl-l | | | resource-recommendations.yml | View recommendations for CPU/Memory requests based on historical data | deployments/daemonsets/statefulsets | Shift-k | [Robusta KRR](https://github.com/robusta-dev/krr) |
| log_jq.yml | View resource logs using jq | pods | Ctrl-j | kubectl-plugins/kubectl-jq | | log_stern.yml | View resource logs using stern | pods | Ctrl-l | |
| log_full.yml | get full logs from pod/container | pods/containers | Ctrl-l | | | log_jq.yml | View resource logs using jq | pods | Ctrl-j | kubectl-plugins/kubectl-jq |
| log_full.yml | get full logs from pod/container | pods/containers | Ctrl-l | |
[1]: https://kubernetes.io/docs/tasks/debug/debug-application/debug-running-pod/#ephemeral-container [1]: https://kubernetes.io/docs/tasks/debug/debug-application/debug-running-pod/#ephemeral-container
[2]: https://github.com/nicolaka/netshoot [2]: https://github.com/nicolaka/netshoot

28
plugins/resource-recommendations.yml Normal file
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@ -0,0 +1,28 @@
plugins:
# Author: Daniel Rubin
# Get recommendations for CPU/Memory requests and limits using Robusta KRR
# Requires Prometheus in the Cluster and Robusta KRR (https://github.com/robusta-dev/krr) on your system
# Open K9s in deployments/daemonsets/statefulsets view, then:
# Shift-K to get recommendations
krr:
shortCut: Shift-K
description: Get krr
scopes:
- deployments
- daemonsets
- statefulsets
command: bash
background: false
confirm: false
args:
- -c
- |
LABELS=$(kubectl get $RESOURCE_NAME $NAME -n $NAMESPACE --context $CONTEXT --show-labels | awk '{print $NF}' | awk '{if(NR>1)print}')
krr simple --cluster $CONTEXT --selector $LABELS
echo "Press 'q' to exit"
while : ; do
read -n 1 k <&1
if [[ $k = q ]] ; then
break
fi
done