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Cloud Computing
"Cloud Computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers,
storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or
service provider interaction."
One of Google’s Data Centers
Models of Cloud Computing
Features of Cloud Computing
What is
Virtualization
"In computing, virtualization refers to the act of creating a virtual (rather than actual) version of
something, including virtual computer hardware platforms, operating systems, storage
devices, and computer resources."
"Virtualization software makes it possible to run multiple operating systems and multiple applications on the same server at the same time”
3
Pros and Cons of Virtualization
Pros:• Isolate applications • Reduced number of physical servers • Reduced costs • Full utilization of the server resources • Fundamental technology that powers Cloud Computing• Increases application uptime by running on diff physical
server
Cons:• It takes 2-3 minutes to provision a VM.
Containers
Operating-system-level virtualization is a server virtualization method in which the kernel of
an operating system allows the existence of multiple isolated user-space instances, instead of just one.
Such instances, which are sometimes called containers, software containers, virtualization
engines (VEs), may look and feel like a real server from the point of view of its owners and users.
Some benefits of Using Containers
• They have a very little footprint• They can be deployed very fast (within milliseconds)• They can run on any computer, infrastructure, or cloud
environment • Containers use less memory and CPU than VMs running
similar workloads • Increased productivity with reduced overhead
Some of the Drawbacks
• Containers are ephemeral• Difficult to manage
In 2013, Docker was founded
Google’s Adoption of Containers
In 2014
“Everything at Google runs in Containers”
“There were 2 billion new containers being deployed every week at Google”
Resources
For a complete course Go To : edx.org
For more about Containers Go To : https://docs.docker.com/
The Go Programming Language
About Golang
• Relatively new programming language • Developed internally at Google in 2009• Rich support for concurrency • Ability of code reusability through packages • Most popular language in Cloud Computing• Docker is built with Golang! • Light weight • Easy to comprehend and develop• By 2020, more than 500,000 Gophers!
Open Source Golang Projects
• Docker – The best project in Golang • Anything built on top of Docker – Kubernetes (Google’s tool)
• Gogs (Go Git Service) – Your own github!
….and many more at https://github.com/trending/go
Resources
Start with the book
Youtube Video (basics of Go covered in 5 mins!)
https://youtu.be/XCsL89YtqCs
Thank You!!
Images Sources
• Docker.com (Docker, Inc.) • Google Images
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