anapsix

#!/usr/bin/env python
# details on rabbitMQ password hashing 
# https://www.rabbitmq.com/passwords.html#computing-password-hash

from __future__ import print_function
import base64
import os
import hashlib
import struct
import getpass

anapsix

#!/usr/bin/env bash
#
# K8s-Vault, like AWS-Vault is a helper for AWS related CLI tools
# is a helper for CLI tools using kubectl config and K8s API.
# Unlike AWS-Vault, vault here is used as a verb,
# synonymous to leap, jump, spring, etc..

# Copyright (C) 2019-2020 Anastas Dancha (aka @anapsix)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

anapsix

#!/usr/bin/env sh

for dep in curl jq grep awk; do
  if ! which ${dep} >&/dev/null; then
    echo >&2 "ERROR: required ${dep} binary is not found, exiting.."
    exit 1
  fi
done

TOKEN=$(

anapsix

---
apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: do-something-job
  namespace: scheduled-tasks
spec:
  schedule: "*/2 * * * *"
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3

anapsix

#!/usr/bin/env bash
#
# K8s-OIDC-LOGIN helper to simplify configuration of OIDC authentication for kubectl
#
# Heavily influenced by oidckube project by @mrbobbytables
# https://github.com/mrbobbytables/oidckube
#
# Copyright (C) 2019 Anastas Dancha (aka @anapsix)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by

anapsix

#!/bin/bash

#
# Implementation of BASH + NCAT chat server 
# 
# Author: Anastas Dancha <anapsix@random.io>
# Contact: anapsix@random.io
#

#debug="true"

anapsix

How to proxy to EC2 Metadata

Sometimes, you need to use your EC2 instance's credentials to access the AWS resources, for testing, development, etc.. This is how you do it.

Step 1

create 169.254.169.254 on loopback interface

linux

sudo ip a add 169.254.169.254 dev lo

anapsix

#!/usr/bin/env bash
#
# RKIND is a naive helper script to start KIND and Rancher Management Server
#

set -u
set -o pipefail

RANCHER_CONTAINER_NAME="rancher-for-kind"
RANCHER_HTTP_HOST_PORT=$[$[RANDOM%9000]+30000]

anapsix

#!/usr/bin/env bash
#
## example running it from cron
# MAILTO=""
# SHELL=/bin/bash
# VERBOSE=1
# CMD_ON_FAILURE='/etc/init.d/nginx reload'
# * * * * * root timeout -k 2 5 /tmp/check_dns.sh upstream.server.com 2>>/var/log/check_dns.log
# * * * * * root sleep 10 && sed -e :a -e '$q;N;501,$D;ba' -i /var/log/check_dns.log
#

anapsix

#!/usr/bin/env python
# I didn't write this
# many examples exist on StackOverflow, etc..
# 
# Note: you'll need python-xlib, python-gtk
# sudo apt-get install python-xlib python-gtk2
#

import sys
import os