Understand Continuous Integration And Deployment With Jenkins –Life Cycle: Before You Regret

Deployment Should be…

  • Simple
  • Stable
  • Fast
  • Reliable & one click

Continuous Integration and deployment with Jenkins – Life cycle:

1.Continuous integration

Continuous integration is the process of merging development works with the branch(code) several times in a day constantly. Most of the work here is done by automated.
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Backup Of MySQL Database To Amazon S3 Using BASH Script Is Not Rocket Science! Learn Them Now!

s3backupBackup of MySQL Database to Amazon S3 using BASH Script

This is a easy way to backup your Mysql Database  to Amazon S3 for a regular interval backup – this is all to be done on your server.

First need to have the checklist  i.e must important for the any task you want to do in a proper way.

  • S3cmd  command line configure on server
  • A bucket over S3 to store dump file
  • Make Bash Script  i.e Contains MySQL Credential ( Hostname, Username, DB Name ), Location on your server where you want to store dump (PATH), Log Path.
  • Give chmod  +x on mysqlbackup Script (mysql.sh)
  • Test it and check S3 bucket
  • Schedule with cron as per your requirement

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All You Need To Know About Configuration Management Tools For DevOps Engineer.

devops-toolsConfiguration Management Tools for DevOps

DevOps   is a combination of software development and operations — and as its name suggests, it’s a melding of these two disciplines in order to emphasize communication, collaboration, and cohesion between the traditionally separate developer and IT operations teams.

In the past, To maintaining IT infrastructure, deploying applications, and provisioning environments we have to involved in many manual efforts, iterative tasks. But in today’s DevOps platform, true automation of these tasks has arrived. The most benefits of automated configuration management range from time savings to elimination of human error. Continue reading

What is DevOps?

2000px-devops-svg_What is Devops?

DevOps” as a term was first coined in 2009 by Patrick Debois, who became one of its chief proponents. Simply put, DevOps is a combination of software development and operations — and as its name suggests, it’s a melding of these two disciplines in order to emphasize communication, collaboration, and cohesion between the traditionally separate developer and IT operations teams.

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How to Scheduled ‘Task’ with Cron Jobs in Linux

crontab-format CRONTAB

A crontab file is a simple text file containing a list of commands meant to be run at specified times. It is edited using the crontab command. The commands in the crontab file (and their run times) are checked by the cron daemon, which executes them in the system background.

Each user (including root) has a crontab file. The cron daemon checks a user’s crontab file regardless of whether the user is actually logged into the system or not.

Here is an explanation of the crontab format.

  1. Minute when the process will be started                            [0-60]
  2.  Hour when the process will be started                               [0-23]
  3.  Day of the month when the process will be started      [1-28/29/30/31]
  4.  Month of the year when the process will be started      [1-12]
  5.  Weekday when the process will be started                       [0-6] [0 is Sunday]

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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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How to Install TeamViewer 11 on Ubuntu System

TeamViewermobileapps-remotecontrol

As we know that,  “TeamViewer”  is a popular  software used for  system’s (PC) remote access and support . TeamViewer software can connect to any PC or server, so you can remote control your partner’s PC  from anywhere by Internet as if you were sitting right in front of it. For the remote session to work the partner has to start a small application, which does not require installation or administrative rights.

TEAMVIEWER HAS LOT OF ADVANTAGES IT SHOWS, WHY SHOULD BE USE OF TEAMVIEWER

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How to host a Drupal web-site with Amazon EC2 having RDS- MySQL DB

DrupalDrupal is a popular content management system (CMS) used to run some of the largest blogs and websites across the internet. Due to the stability of the base, the adaptability of the platform, and its active community, Drupal remains a popular choice after more than a decade on the scene.

Before we get the Drupal site and install them into our web directory, we need to prepare our system. We need to install Apache, PHP, and MySQL and we need to make some additional changes to each of these for our installation.

Here below I am going describe the steps that how to host a drupal site having Amazon EC2 instance and having Amazon RDS for DB host. Continue reading

Command Line Tools to Monitoring & Managing Linux Performance/Process

originalA process is a running instance of a launched, executable program. So being a System Engineer it is not easy to monitor Linux server/system performances and keep them up and running, here in this post i will cover mostly used command line to monitoring that might be useful for those who are taking care of Linux servers/systems as Linux Administrator.

Real- time Process Monitoring by ‘ top ‘:

The ‘ top ‘ command line, top program show a dynamic view of system processes and displaying a summary or  it is used to dipslay all the running and active real-time processes in ordered list. It display CPU usage, Memory usage, Swap Memory, Cache Size, Buffer Size, Process PID, User, Commands and much more. It also shows high memory and cpu utilization of a running processess.  And ‘ top ‘ command continuously refreshes at a configurable interval and provides above summary in a column view. The top command is more useful for system administrator to monitor and take correct action when required. Continue reading

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