Mario-César mariocesar

Autoscaling色々

はじめに

autoscaling全般についてはなします
terraformのコードがいっぱい出てきます

はなすこと

application autoscaling

Setting up Python with TK on Mac OS

From scratch:

Uninstall homebrew if needed:

Remove homebrew from Catalina-Mojave:

https://osxdaily.com/2018/08/12/how-uninstall-homebrew-mac/

```
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall.sh)"

psqlrc:

some infos at initial connect
predefined queries in ~/.psqlrc-include/ compiled by the _update.sh script into ~/.psqlrc-commands.sql which will be included within .psqlrc

typical worksetup:

portforwarding from remote to local host via ssh user@host -L 5432:127.0.0.1:5432

Petty things that annoy a Sysadmin, also a How-To avoid madding yourself by remembering Petty things that will annoy you.

Subtle disabling of loading a .bashrc when connecting with ssh.

sysadmin says: My .bashrc file is not loading!

You could make a sysadmin expend hours trying to debug a .bashrc just by creating and empty .bash_profile in the home directory, this will override the loading of .bashrc and load the instructions in the .bash_profile instead.

	# Lightning talk @ DjangoCon EU 2022
	# Afonso Cerejeira <github.com/ajcerejeira>

	# Intro
	# =====
	#
	# - Makefiles are a set of rules for building targets based on prerequisites;
	# - Usually both targets and prerequisites represent filenames;
	# - Makefiles define dependency graphs;

	terraform {
	required_providers {
	aws = {
	source = "hashicorp/aws"
	version = "~> 4.0"
	}
	}
	}

	provider "aws" {

	# Standard Library
	import re

	# Third Party Stuff
	from django.db import models
	from django.contrib.postgres.indexes import GinIndex
	from django.contrib.postgres.search import (
	SearchQuery,
	SearchRank,
	SearchVector,

	/*
	Copy this into the console of any web page that is interactive and doesn't
	do hard reloads. You will hear your DOM changes as different pitches of
	audio.

	I have found this interesting for debugging, but also fun to hear web pages
	render like UIs do in movies.
	*/

	const audioCtx = new (window.AudioContext \|\| window.webkitAudioContext)()


	# disable the file picker
	driver.execute_script("""
	HTMLInputElement.prototype.click = function () {
	if (this.type !== 'file') {
	HTMLElement.prototype.click.call(this);
	}
	else if (!this.parentNode) {
	this.style.display = 'none';
	this.ownerDocument.documentElement.appendChild(this);

	-- taken from https://rob.conery.io/2014/05/28/a-better-id-generator-for-postgresql/

	create schema idgen;
	create sequence idgen.global_id_sequence;

	CREATE OR REPLACE FUNCTION idgen.id_generator(
	myts timestamp,
	OUT result bigint) AS $$
	DECLARE
	our_epoch bigint := 1314220021721;