msharp

import os
import sys
import re
import boto3
import zipfile

def parse_s3_uri(url):
    match = re.search('^s3://([^/]+)/(.+)', url)
    if match:
        return match.group(1), match.group(2)

mda590

import boto3

ec2 = boto3.resource('ec2')

def lambda_handler(event, context):
    # create filter for instances in running state
    filters = [
        {
            'Name': 'instance-state-name', 
            'Values': ['running']

ipbastola

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

Informatic

cloud-init is absolute cancer. Its code is horrible. It has no documentation at all.

It took me 5 fucking hours to figure out how to properly configure networking on recent cloud-init (Ubuntu 16.04 cloud image) with local datasource.

It's not mentioned anywhere you need to provide dsmode: local. (but only if you need network-config, besides that everything is fine; someone below noted that -m flag does the same thing, good to know) Of course nobody needs documentation for network-config format either. (cloudinit/net/__init__.py is a protip, enjoy the feces dive)

Oh, and by the way - no, it's not possible to provide network-config to uvt-kvm without patching shit.

warmfusion

This Cloud-init script can be used to bootstrap a Xen based CoreOS server through Xen orchestra.

Features;

1. Workaround for the lack of /etc/environment on 'unsupported' hypervisors
2. Static IP allocation to deal with dhcp causing problems (On my network at least)
3. etcd2 bootstrap discovery using public service and discovery tokens
   1. Manual reconfiguration to allow for membership changes after cluster is operational

Usage

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

KrustyHack

#!/bin/bash

DOMAINS=$1
TMP_DIR=$2

if [[ "$DOMAINS" == "" || "$TMP_DIR" == "" ]] ; then
    echo -e "Usage : script.sh DOMAINS.txt (with one domain per line) TMP_DIR"
    echo -e "Example : ./script.sh mydomains.txt /tmp"
    exit 1
fi

imduffy15

disable_ec2_metadata: True
datasource_list: [ "ConfigDrive", "None"]
datasource:
  None:
    userdata_raw: |
      #!/bin/bash
      groupadd vagrant
      useradd -d /home/vagrant -s /bin/bash -m -g vagrant -G wheel vagrant

      echo "root:vagrant" | chpasswd

jgeewax

#!/bin/bash

# Configuration for the script
POSTFIX_CONFIG=/etc/postfix/main.cf
POSTFIX_SASL=/etc/postfix/sasl_passwd

function confirm () {
  read -r -p "${1:-Are you sure? [Y/n]} " response
  if [[ $response == "" || $response == "y"  || $response == "Y" ]]; then
    echo 0;

dastergon

from collections import defaultdict

import boto3

"""
A tool for retrieving basic information from the running EC2 instances.
"""

# Connect to EC2
ec2 = boto3.resource('ec2')