ryuheechul

package collection

# Map

my_add(x, y) = x + y

map_add[x] = val {
	col := input.col
	delta := input.delta

vivekhaldar

#!/usr/bin/env python

import math
import sys
from moviepy.editor import AudioClip, VideoFileClip, concatenate_videoclips



# Get average RGB of part of a frame. Frame is H * W * 3 (rgb)
# Assumes x1 < x2, y1 < y2

taylorza

Filling an array or slice with a repeated pattern

Looking for an efficient pure GO approach to copy repeating patterns into a slice, for a toy project, I ran a few tests and discovered a neat approach to significantly improve performance. For the toy project, I am using this to fill a background buffer with a specific RGB color pattern, so improving this performance significantly improved my acheivable framerate.

All the test were run with a buffer of 73437 bytes, allocated as follows

var bigSlice = make([]byte, 73437, 73437)

Fill the slice with the value 65 by looping through each element and setting the value

System-Glitch

package main

// This is an example of a resilient worker program written in Go.
//
// This program will run a worker, wait 5 seconds, and run it again.
// It exits when SIGINT or SIGTERM is received, while ensuring any ongoing work
// is finished before exiting.
//
// Unexpected panics are also handled: program won't crash if the worker panics.
// However, panics in goroutines started by the worker won't be handled and have

stokito

#!/bin/sh
# Decode a JWT from stdin and verify it's signature with the JWT issuer public key
# Only RS256 keys are supported for signature check
#
# Put OAuth server public key in PEM format to /var/cache/oauth/$JWT_KID.key.pub.pem
# You must create the folder first
# $ sudo mkdir -p /var/cache/oauth/
# To converted key from JWK to PEM use https://8gwifi.org/jwkconvertfunctions.jsp or https://keytool.online/
# NOTE: For Google you can get the keys in PEM format via https://www.googleapis.com/oauth2/v1/certs
#  Decode the keys with decodeURIComponent()

MichaelDrogalis

I've been working with Apache Kafka for over 7 years. I inevitably find myself doing the same set of activities while I'm developing or working with someone else's system. Here's a set of Kafka productivity hacks for doing a few things way faster than you're probably doing them now. 🔥

• Show me all my Kafka topics and their partitions, replicas, and consumers
• Show me the contents of a topic
• Create a Kafka topic
• Produce messages to a Kafka topic
• Validate the schema of messages before producing to a topic
• Do all of this at a distance

Get the tools

wybiral

// Tracking cursor position in real-time without JavaScript
// Demo: https://twitter.com/davywtf/status/1124146339259002881

package main

import (
	"fmt"
	"net/http"
	"strings"
)

drmalex07

Add regular-expression filter under /etc/fail2ban/filter.d/keycloak.conf:

[INCLUDES]

before = common.conf

[Definition]

_threadName = [a-z][-_0-9a-z]*(\s[a-z][-_0-9a-z]*)*
_userId = (null|[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})

lizthegrey

default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'

amslezak

# This config will serve up: http://<haproxy>/foo/index.html
#
# This post was indispensable
# https://stackoverflow.com/questions/39964607/haproxy-forward-request-to-s3-hosted-site

global
    #debug # Uncomment this line to debug and then comment out daemon
    daemon
    maxconn 256