dgulinobw’s gists

dgulinobw / ec2_tagging.py

Last active November 12, 2021 18:09

EC2: set tags on resources to match the tags of the instances they are attached to.

	#!/usr/bin/env python
	import boto3
	import collections
	import datetime
	import time

	ec = boto3.client('ec2',region_name="us-east-1")

	reservations = ec.describe_instances().get('Reservations',[])
	instances = [

dgulinobw / r53_cert_scan.sh

Created October 17, 2019 17:00

Scan all domains in a route53 zone for TLS certificate expiration dates

	#!/bin/bash
	export DOMAIN=test.info
	export PROFILE=default

	aws --profile ${PROFILE} route53 list-resource-record-sets --hosted-zone-id $(aws --profile ${PROFILE} route53 list-hosted-zones-by-name --dns-name ${DOMAIN} --max-items 1 \| jq -r .HostedZones[0].Id) > /tmp/${DOMAIN}.json

	for a in $(cat /tmp/${DOMAIN}.json \| jq -r '.[][] \| "\(.Name),\(.ResourceRecords[0].Value)"' \| sort \| uniq); do
	rr=$(echo $a \| awk -F"," '{print $1}')
	value=$(echo $a \| awk -F"," '{print $2}')
	echo -n "$rr,$value,"

dgulinobw / ec2_instance_name_from_id.sh

Created February 20, 2019 16:15

ec2_instance_name_from_id.sh

	#!/bin/bash
	InstanceId=$1
	#for region in `aws ec2 describe-regions --output text \| cut -f3` #unoptimized list order
	for region in us-east-1 us-east-2 us-west-1 us-west-2 eu-north-1 ap-south-1 eu-west-3 eu-west-2 eu-west-1 ap-northeast-2 ap-northeast-1 sa-east-1 ca-central-1 ap-southeast-1 ap-southeast-2 eu-central-1;
	do
	Name=$(aws ec2 describe-instances --region $region --instance-ids=$InstanceId \| jq -r '.Reservations[].Instances[].Tags[] \| select(.Key=="Name").Value')
	if [ "$Name" != "" ];
	then
	echo $Name
	break

dgulinobw / ec2_instance_id_from_name.sh

Last active February 20, 2019 15:59

ec2_instance_id_from_name.sh

	#!/bin/bash
	InstanceName=$1
	#for region in `aws ec2 describe-regions --output text \| cut -f3` #unoptimized list order, but dynamic
	for region in us-east-1 us-east-2 us-west-1 us-west-2 eu-north-1 ap-south-1 eu-west-3 eu-west-2 eu-west-1 ap-northeast-2 ap-northeast-1 sa-east-1 ca-central-1 ap-southeast-1 ap-southeast-2 eu-central-1;
	do
	Id=$(aws ec2 describe-instances --region $region --filters Name=tag-value,Values=$InstanceName \| jq -r .Reservations[].Instances[].InstanceId)
	if [ "$Id" != "" ];
	then
	echo $Id
	break

dgulinobw / ec2_tag_by_hostname.py

Last active February 22, 2019 23:47

Tag ec2 resources based on associated instance's tags.

	#!/usr/bin/env python
	from __future__ import print_function

	import sys
	import os
	import json
	import boto3

	from botocore.exceptions import ClientError

dgulinobw / r53_scan.py

Created May 21, 2018 20:47

Lists All AWS Route53 resource records in a single account in column format

	#!/usr/bin/env python
	from __future__ import print_function

	import json
	import boto3

	domains_client=boto3.client('route53domains')
	resource_client=boto3.client('route53')

	paginator = resource_client.get_paginator('list_hosted_zones')

dgulinobw / aws_healthchecks.sh

Created May 19, 2018 15:22

list AWS R53 healthcheck id and name in two columns

	#!/bin/bash
	aws route53 list-health-checks \| jq -r '["ID","FQDN"], ["--","---"], (.[][] \| [.Id, .HealthCheckConfig.FullyQualifiedDomainName]) \| @tsv'

dgulinobw / replace_ec2_sg_ip.py

Created February 20, 2018 18:35

Replaces CidrIP with new one in all AWS EC2 security groups

	#!/usr/bin/env python
	from __future__ import print_function

	import json
	import boto3

	ip="1.1.1.1/32"
	new_ip="2.2.2.2/32"'

	for region in ["us-east-1","us-west-1", "us-west-2"]:

dgulinobw / cat_ec2_security_groups.py

Created February 19, 2018 22:48

Print out ec2 security group inbound rules, so you can grep on IPs, etc.

	#!/usr/bin/env python
	from __future__ import print_function

	import json
	import boto3

	for region in ["us-east-1","us-west-1", "us-west-2"]:
	ec2=boto3.client('ec2', region )
	sgs = ec2.describe_security_groups()["SecurityGroups"]
	for sg in sgs:

dgulinobw / new_rel_file.escript

Last active February 16, 2018 20:18

Create new erlang .rel, .boot, .script files given an existing .rel file. Will create new files based on erlang VM this script is run in.

	#!/usr/bin/env escript
	%% -- erlang --
	%% Author: Drew Gulino
	-module(new_rel_file).

	-export([main/1]).

	write_terms(Filename, List) ->
	Format = fun(Term) -> io_lib:format("~tp.~n", [Term]) end,
	Text = lists:map(Format, List),

Drew Gulino dgulinobw