Snawoot

Poor Man's Global Traffic Manager

Sometimes we need to add redundancy to some service or server which happen to be a public-facing entry point of our infrastructure. For example, imagine we want to add a high availability pair for a load balancer which sits on the edge of network and forwards traffic to alive backend servers.

                                             ┌─────────────┐
                                             │             │
                                      ┌─────►│  Backend 1  │
                                      │      │             │
                                      │      └─────────────┘

liviaerxin

Gstreamer Pipeline Samples

Table of Contents:

• Gstreamer Pipeline Samples
  • Tips for Debug
  • Video
    • display test video
    • record to file
• record and display at the same time(queue)

GusAntoniassi

kubectl with ZSH (oh-my-zsh)

How to configure

Use the following commands to add the kubectl autocomplete to zsh:

mkdir -p ~/.oh-my-zsh/custom/plugins/kubectl-autocomplete/
kubectl completion zsh > ~/.oh-my-zsh/custom/plugins/kubectl-autocomplete/kubectl-autocomplete.plugin.zsh

FinnWoelm

# Full instructions: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html
# Examples: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html#examples
# Supported modems: https://www.freedesktop.org/wiki/Software/ModemManager/SupportedDevices/

# Get list of connected modems.
mmcli --list-modems
# Output:
# Found 1 modems:
#	  /org/freedesktop/ModemManager1/Modem/1 [huawei] E3531
# The number at the end of the path is the modem index.

bradtraversy

MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database

rabssm

# Interpolate video frames for a higher frame rate
ffmpeg -i source.mp4 -filter:v minterpolate -r 25 result.mp4
ffmpeg -i source.mp4 -vf minterpolate=50,tblend=all_mode=average,framestep=2 result.mp4

# Crop a video to the bottom right quarter
ffmpeg -i in.mp4 -filter:v "crop=in_w/2:in_h/2:in_w/2:in_h/2" -c:a copy out.mp4

# Resize a video to half size
ffmpeg -i input.mkv -filter_complex "scale=in_w/2:in_h/2" output.mkv

dideler

# Use this script to test that your Telegram bot works.
#
# Install the dependency
#
#   $ gem install telegram_bot
#
# Run the bot
#
#   $ ruby bot.rb
#

tunguskha

Gradient shadow in pure CSS

HTML

<button>Let's Go !</button>

neretin-trike

Препроцессор Pug(Jade)

Pug - это препроцессор HTML и шаблонизатор, который был написан на JavaScript для Node.js.

Содержание:

1. Теги
2. Текст
3. Атрибуты
4. Констуркция Switch Case
5. Циклы
6. Вставка JavaScript кода

axrn

def dict_from_string(s: str, separator: str = ':') -> dict:
    """Returns dict from string with separators."""
    if not s:
        return dict()

    arr = s.split(separator)
    if len(arr) % 2 == 1:
        arr.append('')

    return dict(zip(arr[::2], arr[1::2]))