DevOps and Infrastructure · of mainframes, and mainframes started getting smaller which then called (servers) Still one Application on each server Efficient, improving server components

DevOps and Infrastructure

3. Infrastructure

● Mainframes● Servers● Hypervisors● Virtual Machines● Containers

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1. DevOps

● what is DevOps?● Case Study: Netflix● Statistics● Common problems● Advantages● Mindset and tools

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What is DevOps ?

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DevOps is a set of practices that combines software development (Dev) and information-technology operations (Ops) which aims to shorten the systems development life cycle and provide continuous delivery with high software quality.

● Not a tool

● Not a software

● Not a programming language

Case study: Netflix

● Netflix started as DVD rental business

● Introduced its online streaming offering in 2007

● In 2015 the service accounted for over 36% of downstream internet traffic in

North America

● In 2017 its users streamed a little over a billion hours of content each week

● Started moving to cloud providers in 2008, a process they finished in January

2016

● In April 2017, Netflix surpassed one million containers launched a week.

4https://amido.com/blog/a-case-study-of-devops-at-netflix/

Case study: Netflix

“Our journey to the cloud at Netflix began in August of 2008, when we experienced a major database corruption and for three days could not ship DVDs to our members. That is when we realised that we had to move away from vertically-scaled single points of failure, like relational databases in our datacenter, towards highly reliable, horizontally-scalable, distributed systems in the cloud.”

Yury Izrailevsky, VP, Cloud Computing and Platform Engineering, Netflix.

5https://amido.com/blog/a-case-study-of-devops-at-netflix/

What statistics says

● Traditional Ops are 41% more

time-consuming overall

● Traditional Ops spends an average of 7.2

hours weekly on communication

● Traditional Ops spends 21% more time

putting out fires

● DevOps spends 33% more time on

infrastructure improvements

● DevOps spends 60% less time handling

support cases

● 55% notice improved cooperation and

collaboration

● 38% report a higher quality of code

production

6https://www.upguard.com/blog/devops-success-stats

So what are we trying to solve ?

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Common problems

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Common problems

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Advantages

● Faster delivery of software● Saves Time and money● More reliable systems● Happier people

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Mindset and tools for DevOps

If you’re a Developer:

how to make your life easy?

Think of Automation

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● what tools do you use as a developer?● how do you keep versions of your code?● how do you test a program? unit tests? integration tests?

● how do you provision your environment?● how do you deploy your app?

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Do Open Source have something for developers ?

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Vagrant

what is vagrant?

Vagrant is an open-source software product for building and maintaining portable virtual software development environments, e.g. VirtualBox, KVM, Hyper-V, Docker containers, VMware, and AWS. Vagrant is written in the Ruby language, but its ecosystem supports development in a few languages.

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Vagrant

why using vagrant ?

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Cross-platformOpen Source Declarative config file

Vagrant

who uses vagrant ?

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Vagrant architecture

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https://hackernoon.com/devops101-vagrant-6737c8c29904

Vagrant - sample Vagrantfile

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Vagrant - sample Vagrantfile

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Infrastructure

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Early 1960s

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Mainframes

One server (mainframe) serve one application, where IBM dominated the market

Users connected through dump terminals to the mainframe computer(Central)

Centrally located, inflexible, high cost of purchase, maintenance and support

Early 1990s

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Servers

Demand of applications increased, so the need of mainframes, and mainframes started getting smaller which then called (servers)

Still one Application on each server

Efficient, improving server components like CPU, RAM and Storage, and networks

Servers filled the mainframes cabinets then called Data Centers

Late 1990s and early 2000

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Hypervisors and Virtual Machines

More increase of application demand

VM started to appears on what is called (Hypervisors)

Data Centers became more efficient and more flexible

Virtualization led to Cloud computing which started with AWS

Since 2006

24https://dzone.com/articles/evolution-of-linux-containers-future

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Data Centers evolution for Enterprise

26ServersMainframes Hypervisors and VMs Containers

Data Centers evolution

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How much time does it take to get new servers ? (Vendors)

What about getting it ready inside Data Center ? (DC Ops)

OS level batching, monitoring, logging and alerting ? (Sys Admins)

ServersMainframes Hypervisors and VMs Containers

Config Management

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How much time does it take now using the cloud ?

Servers Mainframes Hypervisors and VMs

Containers

Config Management

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Config management introduced new ways and platforms for management

Config Management benefits

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● You declare and state your desired configuration

● Allows you to define you machine state● Enables you to analyze, check and test your

configuration● Enable teams to collaborate

Do Open Source have something for System

Admins ?

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what is Ansible?

Ansible is an open-source software provisioning, configuration management, and application-deployment tool. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows. It includes its own declarative language to describe system configuration.

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Ansible - Introduction

why using Ansible ?

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Cross-platformOpen Source Declarative config file

Ansible - Introduction

Ansible architecture

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Ansible - sample inventory

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Ansible - sample playbook

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Thanks for listening