steveberryman

#/usr/bin/env ruby

# Sends events to hipchat for wonderful chatty notifications
#
# This extension requires the hipchat gem
#
# The reason I wrote this instead of using the normal hipchat handler, is that with Flapjack
# all events are handled unless you do crazy filtering stuff. Also with a large number of events
# and checks the sensu server can get overloaded with forking stuff. So anyway, hipchat extension :)
#

jashkenas

Spurred by recent events (https://news.ycombinator.com/item?id=8244700), this is a quick set of jotted-down thoughts about the state of "Semantic" Versioning, and why we should be fighting the good fight against it.

For a long time in the history of software, version numbers indicated the relative progress and change in a given piece of software. A major release (1.x.x) was major, a minor release (x.1.x) was minor, and a patch release was just a small patch. You could evaluate a given piece of software by name + version, and get a feeling for how far away version 2.0.1 was from version 2.8.0.

But Semantic Versioning (henceforth, SemVer), as specified at http://semver.org/, changes this to prioritize a mechanistic understanding of a codebase over a human one. Any "breaking" change to the software must be accompanied with a new major version number. It's alright for robots, but bad for us.

SemVer tries to compress a huge amount of information — the nature of the change, the percentage of users that wil

maiha

import io.gatling.core.Predef._
import io.gatling.http.Predef._
import io.gatling.jdbc.Predef._

class Repeat extends Simulation {
  val httpProtocol = http.baseURL("http://localhost").inferHtmlResources()
  val scn = scenario("repeat test").repeat(10) { exec(http("Home").get("/")) }
  setUp(scn.inject(rampUsers(10) over(1)).protocols(httpProtocol))
}

ambakshi

#!/bin/bash
#
# Assume the given role, and print out a set of environment variables
# for use with aws cli.
#
# To use:
#
#      $ eval $(./iam-assume-role.sh)
#

albertbori

Overview

This is a bash script that will automatically turn your wifi off if you connect your computer to an ethernet connection and turn wifi back on when you unplug your ethernet cable/adapter. If you decide to turn wifi on for whatever reason, it will remember that choice. This was improvised from this mac hint to work with Yosemite, and without hard-coding the adapter names. It's supposed to support growl, but I didn't check that part. I did, however, add OSX notification center support. Feel free to fork and fix any issues you encounter.

Most the credit for these changes go to Dave Holland.

Requirements

• Mac OSX 10+
• Administrator privileges

kkc

##TUNING##

Configuration

System: set file descriptors to 32K or 64K

vim /etc/security/limit.conf

stephen-mw

This is the beginning of hopefully many new posts with golang snippets from my blog. List all of your running (or pending) EC2 instances with Amazon's golang sdk.

For a list of filters or instance attributes consult the official documentation.

package main

import (
	"fmt"
	"github.com/awslabs/aws-sdk-go/aws"

willyg302

config:
  FunctionName: lambda-python
  Handler: index.handler
  Runtime: nodejs
  Description: Python hello world from Lambda
install: make

chernjie

/var/lib/docker/containers/*/*-json.log {
    dateext
    daily
    rotate 365
    compress
    delaycompress
    missingok
}

chrisferry

# iops
resource "aws_db_instance" "rds" {
    identifier           = "${var.identifier}"
    allocated_storage    = "${var.allocated_storage}"
    iops                 = "${var.iops}"
    engine               = "${var.engine}"
    engine_version       = "${var.engine_version}"
    instance_class       = "${var.instance_class}"
    name                 = "${var.db_name}"
    username             = "${var.db_username}"