Rajmani Arya arya-oss

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) /

Number Patterns

+ve or -ve numbers ^[-+]?\d+(\.\d+)?$
Phone Numbers +91

Email Patterns

Email [email protected] ^[a-zA-Z0-9._]+\@[a-zA-Z]+\.[a-zA-Z]+$

URL Patterns

Synaptics Touchpad click enable

gsettings set org.gnome.desktop.peripherals.touchpad tap-to-click true

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

	[user]
	name = rajmani1995
	email = [email protected]
	[credential]
	helper = cache --timeout=3600
	[alias]
	aliases = config --get-regexp '^alias\\.'
	br = branch
	branch-name = rev-parse --abbrev-ref HEAD
	ci = commit -m

	<?php
	if (isset($_POST) && !empty($_POST['name'])) {
	var_dump($_POST);
	}
	?>

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">

	def powmod(a,b,n):
	'''
	calculates a^b mod n
	:a base number
	:b power
	:n A prime number
	'''
	c = 0
	f = 1
	k = b.bit_length()

	$rating = 4;
	$courseNumber = 1;

	/* Author: Aneesh Makala
	* Course Number starts from 0 to no. of courses
	* Click on course feedback and then select a subject
	* Open Dev Tools and goto COnsole Tab and Paste this script
	*/
	$scope = angular.element('[ng-controller=feedbackCourses]').scope();
	for($i = 0; $i< $scope.course[$courseNumber].question.course.length; $i++){

	=begin
	Purpose. File system with 8 GoF patterns

	Composite --------------- directories that contain files, each of which could be a directory

	Proxy ------------------- Unix logical link

	Chain of Responsibility - pointer back to the parent directory to create
	"fully qualified path name"
	Iterator ---------------- use iterator to control the traversal of a Composite

	/**
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0