Hung Phan hungnphan

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of usecases of submodules:

Separate big codebases into multiple repositories.

Deploy Kubeflow on Minikube

Install minikube

Please see How to Minikube

Running a minikube with 4CPUs and 8GB memory

$ minikube start --cpus 4 --memory 8192

Installing the NVIDIA driver, CUDA and cuDNN on Linux (well-tested on Ubuntu 20.04)

This is a special note after my painful trials with NVIDIA driver+CUDA+cuDNN installation on Ubuntu 20.04 LTS because they have some different update w.r.t Ubuntu 18.04. In particular, the aim is to install the following pieces of software:

NVIDIA graphics card driver (v510.68.02)
CUDA (v11.0.3)
cuDNN (v8.0.5)
I tested on my Laptop with RTX 2060 in particular Ubuntu 20.04.

At the time of writing (2022-May-15), the NVIDIA driver v510.68.02 is the lastest version. My earlier note was moved to achieve because it is outdated on Ubuntu 20.04.

Conventinal Commit Messages

See how a minor change to your commit message style can make a difference. Examples

Have a look at CLI util git-conventional-commits to ensure this conventions and generate changelogs

	#!/bin/bash

	# Target date in seconds since epoch (May 29, 2025, 13:42 GMT+7)
	TARGET_DATE=$(date -d "2025-05-29 13:42:00 +0700" +%s)

	# Check if we have permission to read journal
	if ! journalctl --list-boots >/dev/null 2>&1; then
	echo "Error: Cannot access journal. You may need to run this script with sudo or be in the 'adm' or 'systemd-journal' group."
	exit 1
	fi

	"""Module for handling authentication, interactions with Firebase and JWT cookies.

	This solution is refactored from the ‘streamlit_authenticator’ package . It leverages JSON
	Web Token (JWT) cookies to maintain the user’s login state across browser sessions. For the
	backend, It uses Google’s Firebase Admin Python SDK. This solution ensures that the content
	of the page and user settings panel are only displayed if the user is authenticated. Similarly,
	the login page can only be accessed if the user is not authenticated. Upon registration, the
	user is sent a verification link to their e-mail address.
	Important - to make this app run, put the following variables in your secrets.toml file:
	COOKIE_KEY - a random string key for your passwordless reauthentication

	"""
	This script was used to create the figures for http://jrsmith3.github.io/sample-logs-the-secret-to-managing-multi-person-projects.html from a PDF file containing some old CMU sample logs.
	"""

	import PyPDF2
	from wand.image import Image
	import io
	import os

	#!/usr/bin/env python
	""" Short description of this Python module.

	Longer description of this module.

	This program is free software: you can redistribute it and/or modify it under
	the terms of the GNU General Public License as published by the Free Software
	Foundation, either version 3 of the License, or (at your option) any later
	version.

	#!/bin/bash

	# THIS FILE WILL REQUIRES SUDO
	# NOTE: Use <full path>, dont use ~/ to point to home, since it will point to /root/ if you use `sudo`
	# or if you are currently the `root` user, IDK.

	# Set your OpenCV install prefix path for CMake here
	OPENCV_PREFIX_PATH=/home/cuong/compiled_libraries
	OPENCV_DOWNLOAD_LINK=https://github.com/opencv/opencv/archive/4.5.1.zip
	OPENCV_CONTRIB_DOWNLOAD_LINK=https://github.com/opencv/opencv_contrib/archive/4.5.1.zip