thaihust

## Install necessary packages
$ sudo apt-get install virtualbox-ose qemu-utils genisoimage cloud-utils

## get kvm unloaded so virtualbox can load
$ sudo modprobe -r kvm_amd kvm_intel
$ sudo service virtualbox stop
$ sudo service virtualbox start

## URL to most recent cloud image of 12.04
$ img_url="http://cloud-images.ubuntu.com/server/releases/12.04/release"

thaihust

Container Resource Allocation Options in docker-run

You have various options for controlling resources (cpu, memory, disk) in docker. These are principally via the docker-run command options.

Dynamic CPU Allocation

-c, --cpu-shares=0         
CPU shares (relative weight, specify some numeric value which is used to allocate relative cpu share)

Reserved CPU Allocation

thaihust

Prereqs

• Atleast 7 VM's: 1 corresponding to each node and 1 for DNS Server.
• Keep note of the IP's of each VM and assign them to a node.
• A publicly accessible IP address of each of the above machines and a private IP address for each of them (these may be the same address depending on the machine environment). These will be referred to as <publicIP> and <privateIP> below.
• The FQDN of the machine, which resolves to the machine's public IP address (if the machine has no FQDN, you should instead use the public IP). Referred to as <hostname> below.
• A DNS root zone in which to install your repository and the ability to configure records within that zone. This root zone will be referred to as <zone> below. In setting of DNS, this is referred to as ims.hom

Setting up a DNS Server

thaihust

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

For more about AWS and AWS Certifications and updates to this Gist you should follow me @leonardofed

---

thaihust

AWS Lambda: Advanced Coding Session (slides)

Live demos:

1. Amazon API Gateway Access Control
2. Amazon Kinesis Streams processing
3. Amazon Cognito Sync trigger
4. AWS CloudFormation Custom Resources

thaihust

Will recursively find all files inside current directory and call for these files dos2unix command. Would break if you had spaces in file name.

find . -type f -exec dos2unix {} \;

Wouldn't break if you had spaces in file names.

find . -type f -print0 | xargs -0 dos2unix

thaihust

Display the configuration

crmsh # crm configure show
pcs   # pcs cluster cib

Display the current status

crmsh # crm_mon -1
pcs   # pcs status

thaihust

#!/bin/bash

MGMT_IP=$(ifconfig br-mgmt  | grep 'inet addr:'| cut -d: -f2 | awk '{ print $1}')
HOST=$(hostname -s)
ADMIN_IP=$(hiera management_vip)
PUB_IP=$(hiera public_vip)
USER='masakari'
PASS='masakari'
DIR="$(dirname `readlink -f $0`)"

thaihust

---
- name: Add Percona apt signing key
  sudo: yes
  apt_key: keyserver=keys.gnupg.net id=1C4CBDCDCD2EFD2A state=present

- name: Add Percona repository
  sudo: yes
  apt_repository: repo='deb http://repo.percona.com/apt trusty main' state=present

- name: Add Percona source repository

thaihust

[[local|localrc]]
#RECLONE=yes
#OFFLINE=True
USE_SCREEN=True

# Credentials
DATABASE_PASSWORD=vietstack
ADMIN_PASSWORD=vietstack
SERVICE_PASSWORD=vietstack
RABBIT_PASSWORD=vietstack