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package main

import (
	"fmt"
	"os"
	"os/exec"
	"syscall"
)

func main() {

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openssl genrsa -out CAroot.key 2048
openssl req -new -key CAroot.key -out CAroot.csr # CN should be different from the certificates below
openssl req -x509 -days 1825 -key CAroot.key -in CAroot.csr -out CAroot.crt
cat CAroot.crt CAroot.key > CAroot.pem

openssl genrsa -out mongod.key 2048
openssl req -new -key mongod.key -out mongod.csr
openssl x509 -req -days 1825 -in mongod.csr -CA CAroot.pem -CAkey CAroot.key -CAcreateserial -out mongod.crt
cat mongod.crt mongod.key > mongod.pem

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A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

harshadyeola

#!/bin/bash

# Author: Erik Kristensen
# Email: [email protected]
# License: MIT
# Nagios Usage: check_nrpe!check_docker_container!_container_id_
# Usage: ./check_docker_container.sh _container_id_
#
# The script checks if a container is running.
#   OK - running

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import argparse
import boto.sqs
import json
import os

parser = argparse.ArgumentParser(description='Saves all messages from an AWS SQS queue into a folder.')

parser.add_argument(
    '-q', '--queue', dest='queue', type=str, required=True,
    help='The name of the AWS SQS queue to save.')

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# Example Dockerfile
FROM hello-world

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byte-size tuts

by alexander white ©

golang tutorials

• 0 - installation on a Mac
• 1 - packages
• 2 - remote packages
• 3 - variable syntax
• 4 - functions syntax
• 5 - loops syntax

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#/bin/bash

##########################################################
### INTRODUCTION
##########################################################
: '
Install and configure R (Redis) + ELK server from scratch on CentOS 6.5.

* Logstash version 1.4.2
* Elasticsearch version 1.3.2

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/**
 * Module dependencies.
 */

var express = require('express')
  , routes = require('./routes')
  , user = require('./routes/user')
  , http = require('http')
  , path = require('path');

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#!/bin/bash
#
# Bash script to setup headless Selenium (uses Xvfb and Chrome)
# (Tested on Ubuntu 12.04) trying on ubuntu server 14.04

# Add Google Chrome's repo to sources.list
echo "deb http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee -a /etc/apt/sources.list

# Install Google's public key used for signing packages (e.g. Chrome)
# (Source: http://www.google.com/linuxrepositories/)