jtimberman

#!./bin/knife exec

# A knife exec script to change chef node's name, preserving all the attributes.
#
# Usage: knife exec rename-node.rb old-name new-name
#
# Script retrieves the Node object, changes its 'name' attribute,
# creates new Node object with updated name and rest of attributes
# untouched. Then it deletes old Node and Client objects from
# database, and logs into the server to update it:

nateberkopec

Last night, Brian Shirai unilaterally "ended" the RubySpec project, a sub-project of Rubinius (the alternative Ruby implementation which Brian was paid to work on full-time from 2007 to 2013). The blog post describing his reasons for "ending" the project led to a big discussion on Hacker News.

When a single, competing Ruby implementation tells that you its test suite is the One True Way, you should be skeptical. Charles Nutter, Ruby core committer and JRuby head honcho, spent a lot of time last night on Twitter talking to people about what this decision means. He's probably too busy and certainly too nice of a guy to write about what is a political issue in the Ruby community, so I'm going to do it on behalf of all the new or intermediate Rubyists out there that are confused by Brian's decision and what it me

lfepp

#!/usr/bin/env ruby

require 'pp'
require 'httparty'

# Class to GET or POST to the PagerDuty REST API
class PagerDuty
  include HTTParty
  format :json
  def initialize(api_token)

ptarjan

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

nqbao

# Copyright (c) 2018 Bao Nguyen <b@nqbao.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all

alexanderadam

* Shows a message while asserting like: 

ok: [host] => {                  
    "msg": "disk usage 4.2B of total 20.0GB (21.0%) (should exceed limit 90.0%)"
}

* Note this only looks at first mount point on current node
* Fails if disk is near-full
* Last step pushes to a push-based monitoring service, which will alert us if it doesn't get there after some time
* Need to setup a  variable `disk_limit`, which is the max acceptable usage ratio, e.g. set it to 0.8 if you want to keep disks within 80% of max size

jeshan

const { CredentialProviderChain } = require('aws-sdk');
const AWS = require('aws-sdk');
const accountProvider = require('./account-provider');

let getEnv = function(accountId) {
    // TODO: insert logic to get your desired profile name
    return profileName;
};

let getProvider = async (accountId, mode) => {

bruvv

btrfs fi show -d
(/dev/mapper/vg1000-lv)

syno_poweroff_task -d

(or: umount /volume1)
(or2: umount /volume1 -f -k)

Check to see if all us unmounted:
df -h

jamescalam

import os
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart

def message(subject="Python Notification", text="", img=None, attachment=None):
    # build message contents
    msg = MIMEMultipart()
    msg['Subject'] = subject  # add in the subject

jamescalam

import smtplib
import socket

def send(msg, server='smtp-mail.outlook.com', port='587'):
    # contain following in try-except in case of momentary network errors
    try:
        # initialise connection to email server, the default is Outlook
        smtp = smtplib.SMTP(server, port)
        # this is the 'Extended Hello' command, essentially greeting our SMTP or ESMTP server
        smtp.ehlo()