How to install and configure Jenkins on Amazon EC2, Cloud-Ubuntu 12.04, 14.04 LTS

jenkins-featuresJenkins

Jenkins is an open source Continuous Integration tool that monitors execution of repetitive jobs, such as building a software project or jobs ran by cron. It’s written in Java programming language and designed to test and report on isolated changes in a larger code in real time.

It is Originally started as Hudson in 2004 but due to a dispute in 2011 they forked and continued under the name, Jenkins.

It can be used to build software, deploy software, or websites to various endpoints or to run unit/behaviour-driven software tests.

So the builds on top of Continuous Integration are Continuous Deployment and Delivery where after the successful tests you will be able to run, instantly and automatically release with the latest version of your codebase. We can say Jenkins makes deployment a non-issue and helps you speed up your development.

Basically, we can say that “Jenkins is a Continuous Integration server which is the best practice of running your tests on a non-developer machine.”

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Amazon S3 cloud storage access from command line in Linux

s3cmdHow to access Amazon S3 BY command line

Amazon S3 is stand for Simple storage service that is storage for the Internet. It as a, “simple storage service that offers software developers a highly-scalable, reliable, and low-latency data storage infrastructure at very low costs”.

Amazon S3 provides a simple web service interface which you can use to store and retrieve any amount of data, at any time, from anywhere on the web. Using this web service, developers can easily build applications that make use of Internet storage.

Here below i will describe how to access Amazon S3 cloud storage from the command line in Linux Step by step you can learn and execute.

One of the most popular Amazon S3 command line clients is s3cmd, which is written in python. As a simple AWS S3 command line tool, s3cmd is ideal to use when you want to run scripted cron jobs such as daily backups. Continue reading

Important AWS DevOps Interview Questions To Ask

AWS_DevopsTOP AWS DevOps’s Questions

If you’re cloud engineer, specially someone who knows Amazon Web Services (AWS) you’ll want to have a bunch of questions to ask them to share their knowledge.  As with any AWS DevOps interview.

what is VPC ?

virtual private cloud (VPC) is a virtual network dedicated to your AWS account. You can configure or create your VPC as per requirement like select region, create subnets (IP- CIDR), configure route tables, security groups, Internet gateway etc to your AWS account By which you can launch your AWS resources, such as Amazon EC2, RDS instances etc, into your VPC Continue reading

Cloud Computing

Cloud-computingIn a general terms Cloud Computing provides us means of accessing the applications as utilities over the Internet, or we can say that it is for anything that involves delivering hosted services over the internet.

Cloud: The term Cloud it refers to a Network or Internet In other words, we can say that Cloud is something, which is present at remote location. Cloud can provide services over public and private networks, i.e., WAN, LAN or VPN. Applications such as e-mail, web conferencing, etc.

Cloud Computing refers to manipulating, configuring, and accessing the hardware and software resources remotely. It offers online data storage, infrastructure, and application. It allows us to create, configure, and customize the applications within minimum time at low cost.

Hence, the coud Computing is making our business applications mobile and collaborative. Continue reading