huynhbaoan’s gists

huynhbaoan / calc cpu

Last active September 16, 2024 20:43

Awk

huynhbaoan / beauty soap

Created August 30, 2024 12:30

Code to handle small tasks

	from bs4 import BeautifulSoup
	import csv
	import requests

	# URL of the static HTML page
	url = 'https://example.com/static-page.html' # Replace with your actual URL

	# Fetch the page content
	response = requests.get(url)

huynhbaoan / Notes from article

Last active May 30, 2024 07:06

Notes from article

	#### Alarm fatigue. When everything is urgent, nothing is urgent
	https://dev.to/dvddpl/when-everything-is-urgent-nothing-is-what-is-alarm-fatigue-and-how-to-deal-with-it-1321

	#### ECS Desired task count
	https://dev.to/aws-builders/understanding-the-desiredcount-and-autoscaling-behaviour-of-aws-fargate-fuckups-and-learnings-4e0

	#### Blameless culture. Make mistake and ask question. Psychology safety in work
	https://dev.to/dvddpl/make-mistakes-and-ask-questions-its-ok-gah

huynhbaoan / Terraform notes

Last active May 8, 2024 07:27

	## I. Important references
	https://developer.hashicorp.com/terraform/language/
	https://developer.hashicorp.com/terraform/cloud-docs
	https://registry.terraform.io/providers/hashicorp/aws/latest/docs

	### 1. Some points
	Terraform HCL is similar to C syntax in some ways
	- Comment: #, //, /* ... */
	- Block: <type> <label> { ... }
	- As I understand:

huynhbaoan / Raspberry Pi 4B installation and tshoot

Last active May 8, 2024 02:10

	## Clone a running OS from SD card to USD SSD, Raspberry 4B 8G

	### Main guide
	https://medium.com/xster-tech/move-your-existing-raspberry-pi-4-ubuntu-install-from-sd-card-to-usb-ssd-52e99723f07b

	### References:
	https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-boot-modes
	https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-boot-flow
	https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-boot-eeprom

huynhbaoan / Bash shell snippet for daily use

Last active April 30, 2023 08:20

Bash shell snippet for daily use

	# Generate du command to check disk
	# Ignore all the mount points nfs4. Modify the "df -t nfs4" as you want
	# Run with lowest CPU priority and lowest diskio priority

	# extract the content from the last column and store it in an array
	IFS=$'\n' read -d '' -ra MOUNT_POINTS <<< "$(df -h -t nfs4 \| awk '{print $NF}')"

	# construct the new du command with the excluded mount points
	DU_COMMAND="nice -n 19 ionice -c 3 du -shxc /* --exclude=/proc"
	for mount_point in "${MOUNT_POINTS[@]}"; do

huynhbaoan / PowerShell notes

Created November 30, 2022 10:25

	Different from bash, PowerShell is object-orriented. Understanding objects are necessary to utilize PowerShell

	Get-NetIPAddress -AddressFamily IPV4 -AddressState Preferred -IncludeAllCompartments \| Get-Member


	TypeName: Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetIPAddress

	Name MemberType Definition
	---- ---------- ----------
	ifIndex AliasProperty ifIndex = InterfaceIndex

huynhbaoan / lambda_function_compress_s3.py

Created August 31, 2020 02:53 — forked from psa-jforestier/lambda_function.py

AWS Lambda function to gzip compress file when upload to S3 (will replace original file with gz version)

	###
	### This gist contains 2 files : settings.json and lambda_function.py
	###

	### settings.json
	{
	"extensions" : [".hdr", ".glb", "*.wasm"]
	}

	### lambda_function.py

huynhbaoan / Bash shell notes

Last active July 29, 2020 09:18

Some common bash shell syntax for daily use

	# Stack size check for HTTPD thread
	ps aux \| grep "[h]ttpd" \| awk '{print $2}' > /tmp/httpd.list
	while IFS= read -r line
	do
	echo "$line"
	cat /proc/$line/status
	ls /proc/$line/task \| xargs -I % bash -c "cat /proc/$line/task/%/status" \| grep VmStk
	done < /tmp/httpd.list
	rm -f /tmp/httpd.list
	### Since on all thread of process share everything except stack, we only check VmStk here

huynhbaoan / Docker cheatsheet

Created July 17, 2020 03:14

	# Create user-defined overlay network
	Prerequisites:
	Firewall rules for Docker daemons using overlay networks
	You need the following ports open to traffic to and from each Docker host participating on an overlay network:
	"TCP port 2377 for cluster management communications
	TCP and UDP port 7946 for communication among nodes
	UDP port 4789 for overlay network traffic"
	Before you can create an overlay network, you need to either initialize your Docker daemon as a swarm manager using: docker swarm init
	or join it to an existing swarm using: docker swarm join
	Either of these creates the default ingress overlay network which is used by swarm services by default. You need to do this even if you never plan to use swarm services. Afterward, you can create additional user-defined overlay networks.