eugenestarchenko

from botocore.credentials import RefreshableCredentials
from botocore.session import get_session

from boto3 import Session


def assumed_session(role_arn, session_name, session=None):
    """STS Role assume a boto3.Session                                                                                                                                                                                                                                                                                                                 
                                                                                                                                                                                                                                                                                                                                                       
    With automatic credential renewal.                                                                                                                 

eugenestarchenko

Updating a feature branch

First we'll update your local master branch. Go to your local project and check out the branch you want to merge into (your local master branch)

$ git checkout master

Fetch the remote, bringing the branches and their commits from the remote repository. You can use the -p, --prune option to delete any remote-tracking references that no longer exist in the remote. Commits to master will be stored in a local branch, remotes/origin/master

eugenestarchenko

Clone botocore and run `git rev-list --all > commit_list.txt` to get a chrological list of the hashes.
Then I manually installed https://github.com/nok/git-walk but had to modify it to use my list instead of generating it's own each time because it was going into a loop.
So `read_commit_ids` looks like this:

```
def read_commit_ids():
    #cmd = 'git rev-list --all'
    #log = subp.check_output(cmd.split()).strip()
    #log = [line.strip() for line in log.split('\n')]
    with open("commit_list.txt") as f:

eugenestarchenko

Working with HTTP from the command-line is a valuable skill for HTTP architects and API designers to have. The cURL library and curl command give you the ability to design a Request, put it on the pipe, and explore the Response. The downside to the power of curl is ho https://httpkit.com/resources/HTTP-from-the-Command-Line/ w much breadth its options cover. Running curl --help spits out 150 different flags and options. This article demonstrates nine basic, real-world applications of curl .

In this tutorial we’ll use the httpkit echo service as our end point. The echo server’s Response is a JSON representation of the HTTP request it receives.

Make a Request

Let’s start with the simplest curl command possible.

eugenestarchenko

# Written by Dane Fetterman on 12/1/2016
# https://aws.amazon.com/blogs/compute/monitor-cluster-state-with-amazon-ecs-event-stream/
# Where they use a cloud watch event from ECS to notify a SNS topic. We're 
# sending a notification directly to slack instead


import requests
import json
from boto3 import session, client

eugenestarchenko

# AMI: ami-f95ef58a (Standard Ubuntu 14.04)
# - Remote user: ubuntu
# - Remote FS root: /var/jenkins
# - Spot instance: true
sudo apt-get update -y
sudo apt-get install -y apt-transport-https ca-certificates

echo "--> Setting up Docker repository"
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" | sudo tee -a /etc/apt/sources.list.d/docker.list

eugenestarchenko

What is DNS?

• DNS is used to convert human-friendly domain names (abantej.github.io) into an internet protocol (185.199.108.153) address
• IP addresses are used by computers to identify each other on the network. IP addresses commonly come in 2 different forms, IPv4 and IPv6

IPv4

• 32 bit field with over 4 billion different addresses (4,294,967,296)

IPv6

• 128 bit field with 340 undecillion addresses (340,282,366,920,938,463,463,374,607,431,768,211,456)

eugenestarchenko

#!/usr/bin/env python3

""" Purge all items from an AWS dynamodb table with an exponential timing back-off
"""

import logging
from time import sleep

import boto3
from botocore.exceptions import ClientError

eugenestarchenko

#!/bin/bash

# USAGE: ./create-aws-console-user.sh $GROUPNAME $USERNAME $PASSWORD

# http://docs.aws.amazon.com/IAM/latest/UserGuide/id_users_create.html#id_users_create_cliwpsapi


# Create administrator group

aws iam create-group --group-name $1

eugenestarchenko

#!/bin/bash
# JQ is required to more easily parse json.
AWS_IAM_ROLE=`curl -sL http://169.254.169.254/latest/meta-data/iam/security-credentials/`
AWS_ACCESS_KEY_ID=`curl -sL http://169.254.169.254/latest/meta-data/iam/security-credentials/$AWS_IAM_ROLE/ | jq -r '.AccessKeyId'`
AWS_SECRET_ACCESS_KEY=`curl -sL http://169.254.169.254/latest/meta-data/iam/security-credentials/$AWS_IAM_ROLE/ | jq -r '.SecretAccessKey'`
AWS_TOKEN=`curl -sL http://169.254.169.254/latest/meta-data/iam/security-credentials/$AWS_IAM_ROLE/ | jq -r '.Token'`
AWS_AZ=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
AWS_DEFAULT_REGION="`echo \"$AWS_AZ\" | sed -e 's:\([0-9][0-9]*\)[a-z]*\$:\\1:'`"
LOCAL_IP=`curl -sL http://169.254.169.254/latest/meta-data/local-ipv4`
PUBLIC_IP=`curl -sL http://169.254.169.254/latest/meta-data/public-ipv4`