amosshapira

#!/bin/bash

# Find self-owned AMI's which are not used by any instances or launch configurations in the default region.
comm -23 \
  <(aws ec2 describe-images --owner self --query 'Images[].[ImageId]' --output text | sort) \
  <((aws ec2 describe-instances --query 'Reservations[].Instances[].[ImageId]' --output text;
    aws autoscaling describe-launch-configurations --query 'LaunchConfigurations[].[ImageId]' --output text) | sort -u)

amosshapira

#!/bin/env bash

## Source: https://github.com/kubernetes/kubernetes/issues/24873#issuecomment-416689257
## https://github.com/kubernetes/kubernetes/issues/24873#issuecomment-416189335

# This version excludes service account tokens from the export

i=$((0))
for n in $(kubectl get -o=custom-columns=NAMESPACE:.metadata.namespace,KIND:.kind,NAME:.metadata.name pv,pvc,configmap,ingress,service,secret,deployment,statefulset,hpa,job,cronjob --all-namespaces | grep -v 'secrets/default-token')
do

amosshapira

#!/usr/bin/env bash

# "CLONE_ALL_GH_TOKEN" should be a Personal Token from https://github.com/settings/tokens
# with scope "repo"
ORG=<YOUR_ORG_NAME_HERE>
GIT_OUTPUT_DIRECTORY=${1:-"$HOME/github"}
echo Cloning to $GIT_OUTPUT_DIRECTORY
# "100" is the maximum adhered to by GitHub
PER_PAGE=100

amosshapira

Generating Authy passwords on other authenticators

---

There is an increasing count of applications which use Authy for two-factor authentication. However many users who aren't using Authy, have their own authenticator setup up already and do not wish to use two applications for generating passwords.

Since I use 1Password for all of my password storing/generating needs, I was looking for a solution to use Authy passwords on that. I couldn't find any completely working solutions, however I stumbled upon a gist by Brian Hartvigsen. His post had a neat code with it to generate QR codes for you to use on your favorite authenticator.

His method is to extract the secret keys using Authy's Google Chrome app via Developer Tools. If this was not possible, I guess people would be reverse engineering the Android app or something like that. But when I tried that code, nothing appeared on the screen. My guess is that Brian used the

amosshapira

#!/bin/bash

# Fetch the S3 prefix list ID's for S3 in all AWS regions.
# These are can then be used as destinations in route tables

aws ec2 describe-regions --query 'Regions[*].RegionName' | \
jq -r '.[]' | \
while read REGION
do
  echo ==== $REGION ====

amosshapira

Installation of Minikube with kvm2 driver which really works!

Disclaimer: Tried on Ubuntu 18.04 LTS

Installation of minikube

• Apparently installation from snap doesn't work as expected, use curl for installation of the latest version.

• curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64

• sudo install minikube-linux-amd64 /usr/local/bin/minikube

amosshapira

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

amosshapira

# "vpc-12345678" is a default VPC we want to exclude
# "-r" tells jq not to quote the output
aws ec2 describe-subnets | \
  jq -r '.Subnets[] | select(.VpcId != "vpc-12345678")| .SubnetId' | \
  sort -u

amosshapira

f7be86d295858e09e63eee11f0859653d6d3f302775a2fc23223dbfeaf261976f612e38456d6ec9c2e9955c65c0736606446640e42a6af7284bd7efd58c42418

amosshapira

import StringIO
import zipfile
import os
import os.path

def append_requests_module_code(zf):
    requests_path = os.path.dirname(os.path.realpath(requests.__file__))
    for root, dirs, files in os.walk(requests_path):
        ziproot = os.path.join('requests', root[len(requests_path)+1:])
        for fn in files: