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Tech

[News] DevOps Tools in 2019

2019-10-19 07:14:38
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DevOps is not any technology or tool or a language but a culture that emphasizes using various tools, automation, close collaboration, synchronization so as to help the organization thus benefitting the complete software development to deployment process. In this blog, we will be learning about various DevOps tools.


According to Wikipedia, DevOps is a software engineering culture and practice that aims at unifying software development (Dev) and software operation (Ops). DevOps aims at shorter development cycles, increased deployment frequency, and more dependable releases, in close alignment with business objectives.”DevOps is basically an escalation from traditional software development models by using cloud technologies, automation, and standardization. Abundance of DevOps tools and scattered tutorials may create confusion around DevOps tools.

It is very important to understand the need for various tools and how they fill in to achieve main objectives of DevOps culture which are smaller development cycles
, increased deployment frequency and use of automation. These tools provide the ability of continuous integration(CI), continuous deployment (CD), continuous testing, continuous monitoring & feedback.
Here are some of the top DevOps tools:
Git: Git is an open-source, distributed and most popular software versioning system. It works on a client-server model, which basically means that there is a central server that holds main repository of code. Code can be downloaded from main repository simultaneously by various clients or developers. Git is developed by Linus Torvalds. Git facilitates teams that are located at geographically different places to collaborate on the same project. Popular companies like Google, Facebook, Microsoft, Netflix extensively use Git in their CI/CD pipelines.

Docker: Docker is a containerization technology. Containers consist of all the applications with all of its dependencies. These containers can be deployed on any machine without caring about underlying host details. Containers can be a .net application or a website along with its dependencies like .net or lamp stack in case of website application. These containers are used to automate the deployment process of application in production and non-production environment.


Selenium: Selenium is an open-source, automated testing framework. Selenium is used majorly to automate the testing of web applications. We can define test in selenium which we want to test against our application. Selenium can repeatedly apply those tests to our application without manual intervention and generate reports. These reports can be used by testing individuals to see if application is behaving correctly or not.

Jenkins: Jenkins is an open-source automation server written in java. Jenkins provides automation of continuous delivery part. Jenkins is used in creating continuous delivery pipelines. To give you an example here is a scenario wherein a Jenkins server will take our application container from the development environment and make it accessible to the testing environment, QA environment or any other non-production environment in the beginning. Jenkins server is in the middle of the whole CI/CD pipeline. It automates this whole process which means whenever a developer will commit a change in a code that code will automatically be visible to the testing server or QA team. They then can provide instantaneous feedback on these changes. Jenkins is used by Microsoft, Redhat, Rackspace, to name a few.
Ansible: Ansible is an open-source application which is used for automated software provisioning, configuration management, and application deployment. Ansible is the backbone of controlling an automated cluster environment consisting of many machines. Ansible works on client-server model. The client acts as a master which is center point in our cluster and provides centralized control of all client machines (slaves) that are connected to it. We can give any command to any client machine or deploy any application to more than one machine from a single master machine. Ansible only requires SSH for communication so it does not need any software dependency to run. Ansible works on Unix.

Puppet: Puppet is an open-source software configuration management, automated provisioning tool. It is an alternative to Ansible and provides better control over client machines. Puppet comes up with GUI which makes it easy to use than Ansible. Puppet is cross-platform, it runs on both Unix and Microsoft Windows. Puppet uses a manifest file and applies those specifications across all machines. Unlike Ansible, Puppet is an agent-based tool. Puppetmaster runs on the master machine and Puppet agent runs on all client machines. Puppet is used by Microsoft, Google, Accenture, etc.
Nagios: Nagios is used for continuous monitoring of infrastructure. Nagios provides server monitoring, application monitoring, network monitoring. By Nagios we can monitor the whole data centre from a single server. We can see whether switches are working correctly, servers are not having too much load or if any part of the application is down. It provides a nice GUI interface to check various details like how much memory is used, what is fan speed, routing tables of switches, or state of SQL server. Nagios has a modular design. It supports NRPE plugins which can be used to add monitoring parameter on existing Nagios. There are various plugins available on the internet which can be used freely to add features to Nagios. Nagios is the most popular tool in continuous monitoring.
Chef: Chef is a configuration management tool. Chef is used to manage configuration like creating or removing a user, adding SSH key to a user present on multiple nodes, installing or removing a service, etc. We can manage up to 10,000 nodes by using chef. These changes are pushed by cookbooks or recipes. Chef has three components viz. Chef server, workstation, and nodes. Chef server is a central point where all details of our Chef infrastructure resides. Chef workstation holds recipes or cookbooks which pushes particular configuration to our chef infrastructure. Nodes are simple machines that are configured by using chef. Chef has API support from AWS, Azure, Rackspace, which makes it easy to use with infrastructure as a code methodology.
SVN: SVN or Subversion is an open-source, centralized software versioning & revision control system. SVN is an alternative of GIT. SVN is a centralized system which means every time if a team member or client wants to make changes in the code he has to inform the central server or repo about these changes. To use an SVN repo, the client needs to connect to the central server. It can check out the code to download the repo from the server. Client than moves on to make changes in this code and commit this change by informing the central repo. From central repo, these changes will be visible to other team members or clients.
Rational ClearCase: Rational ClearCase manages changes across the software lifecycle. ClearCase is used in Software configuration management of source code. ClearCase is used in both hardware and software development. The centre of ClearCase is a secure data repository. It has data that is shared by all users including accounting data and historical data on development processes itself. It shows details like which user implemented which version, when and why. There are 3 products of ClearCase, Rational ClearCase is for medium to large teams, Rational ClearCase LT is useful for small to medium team, Rational ClearCase multisite is used by geographically distributed teams
Read the full list of Best DevOps Tools.

So, these are some of the top tools deployed in the DevOps methodology by a majority of the organizations the world over. Intellipaat is offering the industry-designed training in DevOps which includes most of these tools, you will work on hands-on projects and case studies involving these DevOps tools and get the industry-recognized certification in DevOps.



2019-10-19 07:14:38
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Mr.Mehra | from Redmi 3S

#1

thanks for the info! 🤑
2019-10-19 08:32:50

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Vikas2912 | from Redmi Note 6 Pro

#2

nice information..
2019-10-19 09:21:45

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KRISHNASAGAR R | from app

#3

Nice information
2019-10-19 10:05:53

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samar7 | from Redmi Note 5

#4

tools is good
2019-10-19 13:25:37

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1739322173 | from Redmi Note 4

#5

very nice
2019-10-19 14:01:39
Thanks for sharing

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2019-10-20 21:14:33
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