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@tomislacker
tomislacker / stack.yml
Created Oct 30, 2019
2019-10-30 Dynamic Reference Test
View stack.yml
---
AWSTemplateFormatVersion: 2010-09-09
Description: |
testing dynamic references
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html
Parameters:
AMIParameterName:
#Type: 'AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>'
Type: String
@tomislacker
tomislacker / example.yml
Last active Sep 12, 2019
CloudFormation - Search & Replace Custom Resource
View example.yml
---
AWSTemplateFormatVersion: 2010-09-09
Description: Testing something
Resources:
R1:
Type: Custom::StringReplacement
Properties:
ServiceToken: !ImportValue cfn-helpers:Replace
Find: '-test'
@tomislacker
tomislacker / rateLimitDecorator.py
Created Jul 17, 2019 — forked from gregburek/rateLimitDecorator.py
Rate limiting function calls with Python Decorators
View rateLimitDecorator.py
import time
def RateLimited(maxPerSecond):
minInterval = 1.0 / float(maxPerSecond)
def decorate(func):
lastTimeCalled = [0.0]
def rateLimitedFunction(*args,**kargs):
elapsed = time.clock() - lastTimeCalled[0]
leftToWait = minInterval - elapsed
if leftToWait>0:
@tomislacker
tomislacker / output.md
Last active Jul 15, 2019
Python Nested Generators with `yield from` Syntax (>=Python.3.3)
View output.md

TIL about the yield from syntax introduced in >=Python-3.3

In [6]: def f1(p): 
   ...:     yield f'{p}1' 
   ...:     yield f'{p}2' 
   ...:      
   ...:                                                                         

In [7]: def f2(): 
@tomislacker
tomislacker / es_test.py
Created May 9, 2019
Test ElasticSearch Connectivity
View es_test.py
"""
Simple test for checking if an EC2 instance or ECS task can access an
ElasticSearch domain. This was mainly lifted from the AWS documentation:
https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-request-signing.html#es-request-signing-python
To use this, first the requisite libraries must be available:
$ pip install -U \
boto3 \
elasticsearch \
requests \
@tomislacker
tomislacker / about.md
Last active Apr 4, 2019
Python logging Module Not Showing All Levels
View about.md
  • Inspired by this gist.
  • Supporting documentation
  • I made a new gist because I wanted to have a more complete example that compared what happens without using that solution versus using it.
@tomislacker
tomislacker / aws_route53_delete.sh
Created Jan 15, 2019 — forked from earljon/aws_route53_delete.sh
Delete a Route 53 Record Set in AWS CLI
View aws_route53_delete.sh
#!/bin/sh
# NOTE:
# Make sure that the value of Name, Type, TTL are the same with your DNS Record Set
HOSTED_ZONE_ID=<YOUR_HOSTED_ZONE_ID>
RESOURCE_VALUE=<YOUR_DNS_RESOURCE_VALUE-ex:IP or dns>
DNS_NAME=<YOUR_DNS_NAME-ex: subdomain.domain.com>
RECORD_TYPE=<DNS_RECORD_TYPE-ex: A, CNAME>
TTL=<TTL_VALUE>
@tomislacker
tomislacker / all_aws_lambda_modules.txt
Created Oct 22, 2018 — forked from gene1wood/all_aws_lambda_modules_python.md
AWS Lambda function to list all available Python modules and post the list to Pastebin
View all_aws_lambda_modules.txt
# module list (generated by listmodules.py)
#
# timestamp='20160226T200954Z'
# sys.version='2.7.10 (default, Dec 8 2015, 18:25:23) \n[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)]'
# sys.platform='linux2'
# platform='Linux-4.1.13-19.31.amzn1.x86_64-x86_64-with-glibc2.2.5'
#
BaseHTTPServer
Bastion
CDROM
@tomislacker
tomislacker / unused_security_groups.sh
Last active Jul 25, 2018
Find Unused Security Groups.sh
View unused_security_groups.sh
#!/bin/bash
find_all_groups ()
{
aws ec2 describe-security-groups \
--query 'SecurityGroups[*].GroupId' \
--output text \
| tr '\t' '\n' \
| sort -u
}
@tomislacker
tomislacker / vpc.ipynb
Created Jul 10, 2018
VPC Network Designer
View vpc.ipynb
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