Ryan Richards rrichards

A Kubernetes cronjob to refresh ECR authentication

Create AWS secret

kubectl create secret generic aws-secret --from-literal=AWS_ACCOUNT= --from-literal=AWS_ACCESS_KEY_ID= --from-literal=AWS_SECRET_ACCESS_KEY= --from-literal=AWS_DEFAULT_REGION= --from-literal=AWS_REGION=

Create cronjob

Lecture 1: Introduction to Research — [📝Lecture Notebooks] [▶️Video]
Lecture 2: Introduction to Python — [📝Lecture Notebooks] [▶️Video]
Lecture 3: Introduction to NumPy — [📝Lecture Notebooks] [▶️Video]
Lecture 4: Introduction to pandas — [📝Lecture Notebooks] [▶️Video]
Lecture 5: Plotting Data — [📝Lecture Notebooks] [[▶️Vide

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

Github Action with EC2 using SSH

Check this out on Dev.to

Configure SSH into aws ec2

How to handle SSH keys with ec2-github actions https://zellwk.com/blog/github-actions-deploy/

Declare these git secrets

SSH_PRIVATE_KEY
HOST_NAME / IP_ADDRESS

AWS EC2 Spot Instances for GitHub Self-hosted runners

Below CloudFormation stack which runs GitHub Self-hosted runners on EC2 Spot Instances managed by AutoScalingGroup. It automatically register new instances as self-hosted runners and removes them when Spot is interrupted.

How to use?

Download YML below into file
Create AWS CloudFormation stack
- Provide values for parameters

If you need to install smt in UserData fill stack parameter AdditionalUserData

	*.tfbackup
	.terraform/
	*.tfstate
	.terraform.tfstate.lock.info

	.git
	.gitignore

	# Created by https://www.gitignore.io/api/git,ruby,rails,jetbrains+all
	# Edit at https://www.gitignore.io/?templates=git,ruby,rails,jetbrains+all

	### Git ###
	# Created by git for backups. To disable backups in Git:
	# $ git config --global mergetool.keepBackup false
	*.orig

	.git
	.gitignore

	# Created by https://www.gitignore.io/api/git,ruby,rails,jetbrains+all
	# Edit at https://www.gitignore.io/?templates=git,ruby,rails,jetbrains+all

	### Git ###
	# Created by git for backups. To disable backups in Git:
	# $ git config --global mergetool.keepBackup false
	*.orig

	FROM madnight/docker-alpine-wkhtmltopdf as wkhtmltopdf_savior

	# STAGE for bundle & yarn install
	FROM ruby:2.4.3-alpine3.7 as builder

	ENV CA_CERTS_PATH /etc/ssl/certs/
	ENV RAILS_ENV production
	ENV RAILS_LOG_TO_STDOUT true
	ENV RAILS_SERVE_STATIC_FILES true

	FROM ruby:2.7.1-slim AS base

	LABEL maintainer="Yann Defretin <[email protected]"

	# Common dependencies
	RUN apt-get update -qq \
	&& DEBIAN_FRONTEND=noninteractive apt-get install -yq \
	--no-install-recommends \
	build-essential=12.6 \
	gnupg2=2.2.12-1+deb10u1 \