Mehmet Yasin AKAR mehyaa

Initializing a Cassandra Docker container with keyspace and data

This gist shows you how to easily create a cassandra image with initial keyspace and values populated.

It is very generic: the entrypoint.sh is able to execute any cql file located in /docker-entrypoint-initdb.d/, a bit like what you do to initialize a MySQL container.

You can add any *.sh or *.cql scripts inside /docker-entrypoint-initdb.d, but note that:

*.sh files will be executed BEFORE launching cassandra

Starting from February 2019, Oracle JDK updates will require Commercial license if you make any business using Java (eg, you're a Java Developper not spending only your spare time developping with Java).

It includes Java not only on your server, but on your laptop as well.

Source | Source

~~What's nasty is Java versions will remains free to download since if you use it as an individual/personal use, you won't be concerned by the commercial aspects of the license.~~

Openssl commands:

openssl genrsa -out self-ssl.key
openssl req -new -key self-ssl.key -out self-ssl.csr -config csr.conf
openssl x509 -req -days 365 -in self-ssl.csr -signkey self-ssl.key -out self-ssl.crt -extensions req_ext -extfile csr.conf

Sign from Root CA: openssl x509 -req -days 365 -extensions req_ext -extfile csr.conf -CA RootCA.crt -CAkey RootCA.key -in self-ssl.csr -out self-ssl.crt

	{{ states.binary_sensor
	\| selectattr('attributes.device_class', 'in', ['door','window'])
	\| selectattr('state', 'equalto', 'on')
	\| list \| count }}

	:: -----------------------------------------------------------------------------------------
	:: Cheat Command Wrapper Script
	:: -----------------------------------------------------------------------------------------
	:: This batch script acts as a wrapper for 'cheat.exe', enhancing its functionality
	:: by allowing more intuitive command-line interactions. Specifically, it:
	::
	:: 1. Directly accesses cheatsheets or tags with a single argument.
	:: 2. Facilitates search within a cheatsheet using multiple arguments, treating them
	:: as a single search query.
	:: 3. Dynamically resolves the paths to the community and personal cheatsheets

	@echo off
	:: Note: Lines beginning with "REM" or :: are comments
	:: Script by: https://github.com/thiojoe
	:: Purpose: Creates a much more user friendly output for the Microsoft Error Lookup Tool (err.exe). It parses the original output and modifies the text.
	:: Usage: Just call the batch file with command prompt along with the error code the same as you would with err.exe
	:: Example: error.bat 50
	:: Recommended to rename this script to something shorter like 'error.bat'. Must be next to the lookup tool exe file.

	# First, we need to find our device. BEFORE inserting your USB drive, run the
	# following:
	diskutil list

	# This will output a bunch of info about all of the disk drives connected to
	# your Mac. Each entry will have a header in the form "/dev/diskX", where X is
	# some number starting at 0. Now, insert your USB drive and run the command
	# again. You should see a new entry. Make note of the name (ie, /dev/diskX).
	diskutil list

	#!/bin/bash

	# This assumes that the ~6GB mojave installer is in the /Applications folder.
	# If it's not, just open the App Store, search Mojave, and you can download the installer file from there.

	hdiutil create -o /tmp/mojave.cdr -size 6g -layout SPUD -fs HFS+J
	hdiutil attach /tmp/mojave.cdr.dmg -noverify -mountpoint /Volumes/install_mojave
	sudo /Applications/Install\ macOS\ mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/install_mojave
	mv /tmp/mojave.cdr.dmg ~/Desktop/InstallSystem.dmg
	hdiutil detach /Volumes/Install\ macOS\ mojave

	#
	# Import an mbox file into Google Groups using the Groups Migration API
	#
	# To run this script, you will need to:
	# 1. Be an admin on your domain
	# 2. Enable API access in your domain
	# 3. Create a project on the developer console
	# 4. Activate the Groups Migration API for the project
	# 5. Create an OAuth Client ID and Secret for the project
	# 6. Install the google-api-python-client and google-auth-oauthlib

	/// <summary>
	/// A Timer that execute an async callback after a due time and repeating it after a period (interval).
	/// Callback is a non reentrant timer (ie. callbacks never overlaps). Dispose method wait for the current callback to finish.
	/// Timer can be cancelled using a CancellationToken or by calling StopAsync or by calling Dispose.
	/// Exception inside callbacks are ignored and just traced.
	/// Callback is invoked at each interval (period) after the end of the previous invocation.
	/// </summary>
	public sealed class TimerAsync : IDisposable
	{
	private readonly Func<CancellationToken, Task> _callback;