silviud

CSS Selectors Cheatsheet

Element selectors

Element -- selects all h2 elements on the page

h2 {
    foo: bar;

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

	# https://docs.databricks.com/en/dev-tools/auth/oauth-u2m.html#generate-oauth-pair
	# the auth is handled via azure cli
	# you need to issue `az login` and set the sub name\|id where the ws is attached.

	import cmd
	import uuid, hashlib, base64


	def generate_codes():
	# Generate a UUID.

	# Windows Performance Counters plugin.
	# These are the recommended method of monitoring system metrics on windows,
	# as the regular system plugins (inputs.cpu, inputs.mem, etc.) rely on WMI,
	# which utilize more system resources.
	#
	# See more configuration examples at:
	# https://github.com/influxdata/telegraf/tree/master/plugins/inputs/win_perf_counters
	# If metrics are missing run `lodctr /r` as Administrator

	[[inputs.win_perf_counters]]

	# -- coding: utf-8 --
	"""
	pg_uuid
	~~~~~~~~~~~~~~~~

	<NO DESCRIPTION>.

	:copyright: (c) 2018 by WRDLL <[email protected]>
	"""
	from flask import Flask

	# create password - note the md5 is the prefix and the value is user + password
	$ U=testpg; P=testpg; echo -n md5; echo -n $P$U \| md5sum \| cut -d' ' -f1
	$ md54bb01023735acf990f528fe961df8140
	# connect to pg
	$ psql
	postgres=# CREATE ROLE testpg NOSUPERUSER NOCREATEDB NOCREATEROLE NOINHERIT LOGIN PASSWORD 'md54bb01023735acf990f528fe961df8140';
	postgres=# CREATE DATABASE testpgdb OWNER testpg;
	^D
	# at this point you can connect to the database `testpgdb` such so
	$ psql -U testpg -d testpgdb -h YOURHOST -W

	# Regular Colors

	\| Value \| Color \|
	\| -------- \| ------ \|
	\| \e[0;30m \| Black \|
	\| \e[0;31m \| Red \|
	\| \e[0;32m \| Green \|
	\| \e[0;33m \| Yellow \|
	\| \e[0;34m \| Blue \|
	\| \e[0;35m \| Purple \|

	// class
	class ClassCar {
	drive () {
	console.log('Vroom!');
	}
	}

	const car1 = new ClassCar();
	console.log(car1.drive());

	#!/usr/bin/env bash

	# https://betterdev.blog/minimal-safe-bash-script-template/

	set -Eeuo pipefail
	trap cleanup SIGINT SIGTERM ERR EXIT

	script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

	usage() {

	apiVersion: v1
	clusters:
	- cluster:
	insecure-skip-tls-verify: true
	server: https://SERVER:PORT
	name: main
	contexts:
	- context:
	cluster: main
	user: main