Suraj Nath electron0zero

README

This is guide on how to configure linux (Ubuntu 18.04 LTS) on Inspiron 15 7591 Laptop, it assumes it's already installed and running, but you want to make it better and configure

Update on Apr 15, 2022: If you now installing Ubuntu on this laptop, Use Ubuntu 21.10 or above. Ubuntu 21.10 has support for audio, and bluetooth for this laptop.

Ubuntu on Dell Inspiron 7591 - Certification Details: https://certification.ubuntu.com/hardware/201903-26880

Canonical have tested this device and it's suppoed to work with Linux (Fingerprint will not work due to lack of drivers from Goodix).

This system was tested with 18.04 LTS, running the 5.0.0-1016-oem-osp1 kernel, so we will run same for better experience

Update: turned it into a post, see https://suraj.dev/blog/sending-kubernetes-events-to-sentry

Setup sentry-kubernetes for multiple clusters

build image
configure RBAC in all target clusters using setup-access.yaml
deploy it (use deploy.rb)

How does deploy.rb works

get list of all clusters from clusters.yaml

Puma Stats Logger - plugin for collecting puma metrics

to configure this plugin, add following in your puma.rb

# plugin to send server stats to our monitoring systems
# export SERVER_STATS_FREQUENCY (seconds) to control the frequency
plugin :stats_logger

Synaptics Touchpad on ubuntu 18.04 on Dell Inspiron 3542

I had an issue where touchpad used to mess around change my focus, so i used following commands as startup script to disable touchpad when I am typing

# disable touch pad for one second, when keyboard is in use
# add this as a startup command to presist it across reboots
syndaemon -i 1

TP-Link AC600 Archer T2U Nano - Ubuntu 18.04 - Info and drivers

UPDATE: I turned it into blog post, you can read it here: https://suraj.dev/blog/configuring-wireless-usb-adapter-archer-t2u-nano-on-linux

My T2U has ID 2357:011e and solution metioned in this SO Thread is for same devide ID

Here is full text of Answer: https://askubuntu.com/a/1149288

# For the T2U with ID 2357:011e do

	# https://frontdeveloper.pl/2018/10/how-to-log-httparty-requests/#easy-footnote-3-298

	require 'httparty'
	require 'rails'

	# Or wrap things up in your own class
	class StackExchange
	include HTTParty
	# make sure logger is at info for HTTParty Logger to work
	Rails.logger.level = 0

	# frozen_string_literal: true

	# time some code with name, and dump it in logfile
	# can be used to find how much time is going in each part
	#
	# set perf markers in the code
	# pros:
	# - low overhead, gives high level picture
	# cons:
	# - needs marking

	# flipper with ActiveRecord backend, taken from
	# https://github.com/jnunemaker/flipper/blob/master/examples/active_record/internals.rb
	# get all features
	ap Flipper::Adapters::ActiveRecord::Feature.all

	# get all actors which have a feature enabled
	feature_name = "scope_by_tag_group.pg_lookup"
	ap Flipper::Adapters::ActiveRecord::Gate.where(feature_key: feature_name)

	# bash script to get title of a url and then dump it in Markdown format link
	# credit: https://unix.stackexchange.com/a/103253

	function url_to_md( ) {
	t=$(wget -qO- $1 \| perl -l -0777 -ne 'print $1 if /<title.?>\s(.?)\s<\/title/si')
	echo "[$t]($1)"
	}


	# example usage

	# frozen_string_literal: true

	# Ref.: https://hiltmon.com/blog/2012/02/27/quick-and-dirty-rails-performance-profiling/
	# Usage:
	# RubyProfiler.prof('my_profile') do
	# slow code
	# ...
	# end
	# You can also pass a `enabled: false` to disable profiler
	#