Skip to content

Instantly share code, notes, and snippets.

@johnnaegle
johnnaegle / sns2slack.js
Last active December 15, 2020 21:46
Posts an Amazon Autoscaling SNS message to a slack webhook
var https = require('https');
var util = require('util');
var webhook = '/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX';
exports.handler = function(event, context) {
console.log(JSON.stringify(event, null, 2));
console.log('From SNS:', event.Records[0].Sns.Message);
var postData = {
"text": "*" + event.Records[0].Sns.Subject + "*"
@Faheetah
Faheetah / Jenkinsfile.groovy
Last active May 9, 2024 20:15
Jenkinsfile idiosynchrasies with escaping and quotes
node {
echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
echo 'No quotes, pipeline command in single quotes'
sh 'echo $BUILD_NUMBER' // 1
echo 'Double quotes are silently dropped'
sh 'echo "$BUILD_NUMBER"' // 1
echo 'Even escaped with a single backslash they are dropped'
sh 'echo \"$BUILD_NUMBER\"' // 1
echo 'Using two backslashes, the quotes are preserved'
sh 'echo \\"$BUILD_NUMBER\\"' // "1"
@bastman
bastman / docker-cleanup-resources.md
Created March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@jay3sh
jay3sh / guard-my-mabook-when-i-am-away.sh
Created March 30, 2016 16:46
Guard My Macbook When I'm Away
#!/bin/bash
#
# When you are working on your macbook sitting in cafe and you have to go pee,
# you need some way to guard you machine.
#
# Start this script, remove any earphones, and go do the job.
# The assumption is the thief will close the lid of the laptop before taking it away.
# This script detects the closing of the lid and plays some loud audio that will
# likely distract the thief and/or grab attention of nearby people, making the
@tache
tache / hook.rb
Last active January 11, 2018 21:08 — forked from asimihsan/hook.rb
Hook for letsencrypt.sh to do DNS challenges
#!/usr/bin/env ruby
require 'aws-sdk'
require 'pry'
require 'awesome_print'
require 'domainatrix'
# ------------------------------------------------------------------------------
# Credentials
# ------------------------------------------------------------------------------
@megastef
megastef / sematext-agent-docker.nomad
Last active May 21, 2017 14:28
Monitoring and Logging for all Docker containers on Nomad by HashiCorp
# Run Job Definition: nomad run sematext-agent-docker.nomad
# https://www.hashicorp.com/blog/nomad.html
# More Info: https://hub.docker.com/r/sematext/sematext-agent-docker/
# http://blog.sematext.com/2015/12/15/docker-logging-partner-sematext-logsene/
job "sematext-agent-docker" {
# set your region here
region = "global"
# Mandatory, parameter pls. change!
datacenters = ["us-west-1"]
# run this job globally
@tuxfight3r
tuxfight3r / jenkins-decrypt.groovy
Created September 23, 2015 11:36
Decrypting Jenkins Password
#To Decrypt Jenkins Password from credentials.xml
#<username>jenkins</username>
#<passphrase>your-sercret-hash-S0SKVKUuFfUfrY3UhhUC3J</passphrase>
#go to the jenkins url
http://jenkins-host/script
#In the console paste the script
hashed_pw='your-sercret-hash-S0SKVKUuFfUfrY3UhhUC3J'
@oleksii-zavrazhnyi
oleksii-zavrazhnyi / gist:968e5ea87e99d9c41782
Created November 28, 2014 17:32
BASH Absolute path of current script
DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )

Is a useful one-liner which will give you the full directory name of the script no matter where it is being called from

These will work as long as the last component of the path used to find the script is not a symlink (directory links are OK). If you want to also resolve any links to the script itself, you need a multi-line solution:

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
@jasonkeene
jasonkeene / python_scripting.rst
Last active April 21, 2024 20:09
Get started with writing your own python scripts to automate system tasks.

Python for System Admins / Operators

Installing Python

Most Unix/Linux systems come with python pre-installed:

$ python -V
@P7h
P7h / jdk_download.sh
Last active February 20, 2024 11:29
Script to download JDK / JRE / Java binaries from Oracle website from terminal / shell / command line / command prompt
##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### ##### #####
### Shell script to download Oracle JDK / JRE / Java binaries from Oracle website using terminal / command / shell prompt using wget.
### You can download all the binaries one-shot by just giving the BASE_URL.
### Script might be useful if you need Oracle JDK on Amazon EC2 env.
### Script is updated for every JDK release.
### Features:-
# 1. Resumes a broken / interrupted [previous] download, if any.
# 2. Renames the file to a proper name with including platform info.