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@max-rocket-internet
max-rocket-internet / prom-k8s-request-limits.md
Last active May 1, 2025 05:24
How to display Kubernetes request and limit in Grafana / Prometheus properly

CPU: percentage of limit

A lot of people land when trying to find out how to calculate CPU usage metric correctly in prometheus, myself included! So I'll post what I eventually ended up using as I think it's still a little difficult trying to tie together all the snippets of info here and elsewhere.

This is specific to k8s and containers that have CPU limits set.

To show CPU usage as a percentage of the limit given to the container, this is the Prometheus query we used to create nice graphs in Grafana:

sum(rate(container_cpu_usage_seconds_total{name!~".*prometheus.*", image!="", container_name!="POD"}[5m])) by (pod_name, container_name) /
@technetium
technetium / .Propagating-awareness-via-ManyToOne-associations.md
Created April 14, 2016 07:47
Propagating awareness via ManyToOne associations

Propagating awareness via ManyToOne associations

Introduction

Michaël Perrin has written an article about using annotation and filters improve security.

With a more complex model, for example an order that contains products, you want also to filter on the associations of the filtered entity.

@erikw
erikw / snp
Last active April 25, 2025 20:50
snp: Wrap shell command in BTRFS snapper pre-post snapshots and log outputs.
#!/usr/bin/env bash
# Runs a command wrapped in btrfs snapper pre-post snapshots.
# Usage: $ snp <commands>
# e.g.: $ snp pacman -Syyu
# Requirements: snapper (https://wiki.archlinux.org/title/snapper)
# The latest version of this script is hosted at https://gist.github.com/erikw/5229436
log_path="/var/local/log/snp"
date=$(date "+%Y-%m-%d-%H%M%S")
log_file="${log_path}/snp_${date}.log"
@rtcoms
rtcoms / README.md
Created October 9, 2012 17:38 — forked from agnoster/README.md
My ZSH Theme

agnoster.zsh-theme

A ZSH theme optimized for people who use:

  • Solarized
  • Git
  • Unicode-compatible fonts and terminals (I use iTerm2 + Menlo)

For Mac users, I highly recommend iTerm 2 + Solarized Dark

@mnapoli
mnapoli / reference.yml
Last active January 12, 2023 00:08
Doctrine YAML configuration reference
# Inspired from http://blog.hio.fr/2011/09/17/doctrine2-yaml-mapping-example.html
MyEntity:
type: entity
repositoryClass: MyRepositoryClass
table: my_entity
namedQueries:
all: "SELECT u FROM __CLASS__ u"
# Class-Table-Inheritance
@bubba-h57
bubba-h57 / Serializor.php
Created September 13, 2012 14:49
Doctrine 2 Entities Serialized to JSON
<?php
namespace H57\Util;
class Serializor {
/**
* Converts the Doctrine Entity into a JSON Representation
*
* @param object $object The Object (Typically a Doctrine Entity) to convert to an array
@noetix
noetix / TranslatedFieldType.php
Created July 18, 2012 00:10
Translated Field Type for Symfony 2.1
<?php
namespace Acme\DemoBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Acme\DemoBundle\Form\EventListener\addTranslatedFieldSubscriber;
@marktheunissen
marktheunissen / pedantically_commented_playbook.yml
Last active April 19, 2025 17:31 — forked from phred/pedantically_commented_playbook.yml
Insanely complete Ansible playbook, showing off all the options
This playbook has been removed as it is now very outdated.
@ScottPhillips
ScottPhillips / .htaccess
Created February 2, 2012 04:30
Common .htaccess Redirects
#301 Redirects for .htaccess
#Redirect a single page:
Redirect 301 /pagename.php http://www.domain.com/pagename.html
#Redirect an entire site:
Redirect 301 / http://www.domain.com/
#Redirect an entire site to a sub folder
Redirect 301 / http://www.domain.com/subfolder/
@almost
almost / models.coffee
Created November 26, 2011 20:02
The beginnings of a declarative model syntax for CoffeeScript.
# The beginnings of a declarative model syntax for CoffeeScript.
# SEE: http://almostobsolete.net/declarative-models-in-coffeescript.html
# Thomas Parslow
# Email: [email protected]
# Twitter: @almostobsolete
# The top part is the setup, see below that for the demo
# To see this run right away try copy pasting it into the 'Try
# CoffeeScript' box at http://jashkenas.github.com/coffee-script/