Jason Camacho jasonco-dev

Create Root CA (Done once)

Last update: Nov 2025.

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

my database had 72k annotations at the time I ran these benchmarks, here's the result:

$ python scripts/batch_bench.py conf/development-app.ini dumb
Memory summary: start
      types |   # objects |   total size
=========== | =========== | ============
       dict |       13852 |     12.46 MB
  frozenset |         349 |     11.85 MB
VM: 327.29Mb

Start up a container (whichever Linux flavour takes your fancy):

docker run -it ubuntu /bin/bash
docker run -it centos /bin/bash

top: check what CPU and Memory running processes are utilising
ps: see what processes are running
strace: monitor interactions between processes

README

A docker entrypoint must ensure that after any initialization (environmanet setup etc.) the main docker process must remain at PID 1. This is usually accomplished by using exec as the last command (which actually replaces the current process).

See also: https://docs.docker.com/engine/reference/builder/#entrypoint

An example entrypoint.sh:

	"""
	Sometimes you want to make several different replacements. Search by tag with
	optional attributes. Replace with tag with optional attributes.

	Thank you to Dan @ University of Exeter for bug fix
	"""

	from bs4 import BeautifulSoup

	REPLACEMENTS = [('b', {}, 'strong', {}),

	export REPOS=$(aws ecr describe-repositories \| jq '.repositories \| .[].repositoryName' \| cut -d'"' -f 2)

	for repo in $REPOS;
	do
	IMAGES=$(aws ecr list-images --repository-name $repo \| grep imageDigest)
	if [[ "$?" -eq "1" ]]
	then
	echo "$repo: empty"
	fi
	done

	#!/bin/bash
	# https://gist.github.com/ryankurte/bc0d8cff6e73a6bb1950

	set -e

	if [ "$#" -ne 3 ] && [ "$#" -ne 4 ]; then
	echo "Usage: $0 CA NAME ORG"
	echo "CA - name of fake CA"
	echo "NAME - name of fake client"
	echo "ORG - organisation for both"

	#!/bin/bash

	REGION="us-east-1"
	PROFILE="prod"

	get_account_id(){
	aws ec2 describe-security-groups \
	--group-names 'Default' \
	--query 'SecurityGroups[0].OwnerId' \
	--output text \