DevOps: Course, Benefits, Tools, Roles and Responsibilities

Safalta Expert Published by: Aryan Rana Updated Wed, 14 Sep 2022 12:07 AM IST

Highlights

DevOps is the combination of cultural philosophies, practices, and tools that improves an organization's capacity to deliver applications and services at high velocity: evolving and improving products more quickly than organisations using conventional infrastructure management and software development procedures.

According to a Grand View Research analysis, the global DevOps industry is anticipated to grow to US$12.85 billion by 2025. 'Indeed's job posts reveal that the function of a DevOps Engineer has witnessed a 225 per cent surge, according to a report from SD Times. On Glassdoor's list of the top 50 jobs in America, DevOps Engineer is ranked second. According to Glassdoor, a DevOps Engineer's annual income averages between US$135,000 and US$180,000. 

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What is DevOps?


DevOps is the combination of cultural philosophies, practices, and tools that improves an organization's capacity to deliver applications and services at high velocity: evolving and improving products more quickly than organisations using conventional infrastructure management and software development procedures.
 

Lifecycle of DevOps


The main goal of DevOps is to unite everyone involved in IT infrastructure, development, and operations, including developers, testers, system administrators, and quality assurance specialists. DevOps Engineers are the collective name for all of these individuals.

DevOps engineers are responsible for everything from data collection to infrastructure setup to development, testing, deployment, continuous monitoring, and user feedback collection. For improved outcomes, this cycle of developing, testing, deploying, and monitoring is continually repeated.

Code: Code is written by developers on any platform as the initial stage of the DevOps life cycle.
Construct: Depending on the language they are using, programmers build the version of their programme in any extension.
Test: Using any automation technology, such as Selenium, the testing process must be automated for DevOps to be successful.
Release: A method for organising, scheduling, and managing the build in various settings following testing and before deployment
Deploy: This stage prepares the application's artefacts and code files before deploying and running them on the server.
Operate: After being deployed, the application is used by clients in actual situations.
Monitor: This stage assists in delivering vital data that essentially aids in ensuring service uptime and peak performance.
Plan: The planning stage collects data from the monitoring stage and, in response to input, puts adjustments into practice for improved performance.
 

Different life cycle stages


Let's now talk about the various DevOps life cycle stages that contribute to the standard software development life cycle (SDLC):
  • Constant Improvement
  • Continuous Improvement
  • Continuous Evaluation
  • Constant Watching
  • Containerization and Virtualization


Constant Development


In the Waterfall model, our software is divided into several components or sub-components to shorten the development cycles, but in this DevOps stage, the programme is produced continuously.

Tools: GIT can be used to maintain various versions of the code as we code and build throughout this stage.

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We may utilise a dependable tool, namely Maven, to build/package the code into an executable file.
 

Continuous Integration


If our code is supporting new functionality at this level, it is continuously integrated with the current code. The modified code must ensure that there are no mistakes in the current environment for it to function properly as the continuous development process continues. Existing code must be integrated with the most recent version "continuously."
  • Jenkins is the tool used for continuous integration. Here, we may fetch the most recent code from the GIT repository, build it, and deploy it to the test or production server.


Continuous Evaluation


Using a variety of automation techniques, our generated software is being tested regularly to find issues throughout the continuous testing stage.
  • Tools utilised: There are various automated tools available for QA/Testing purposes. Selenium is a tool that is frequently used for automation testing since it enables QAs to test the scripts concurrently to guarantee that the programme is free of errors, incompetences, or faults.


Constant Monitoring


It is an extremely critical stage in the DevOps life cycle since it offers crucial data that enables us to guarantee service availability and peak performance. Reliable monitoring tools help the operations team find and correct application issues and weaknesses.
  • Tools utilised: Several tools are used to monitor the application, including Nagios, Splunk, ELK Stack, and Sensu. They assist us in closely observing our servers and applications to ensure their functionality and well-being. Any significant problem found by these tools is reported to the development team for resolution during the phase of continuous development.


Tools for DevOps


The following section discusses the most popular DevOps tools.
  • Puppet: One of the popular DevOps tools is puppet. It makes it possible to deliver and release technological improvements fast and regularly. It provides features for continuous delivery, automated testing, and versioning.
  • Docker is an advanced DevOps solution that enables the creation, distribution, and operation of distributed applications across several platforms. It facilitates the speedy assembly of the applications and is frequently appropriate for container management.
  • Jenkins: One of the most well-liked DevOps tools for monitoring the execution of recurring operations is Jenkins. Jenkins also enables us to retrieve the results quickly and easily as well as incorporate the modifications.
  • Ansible: This programme boosts productivity, manages challenging installations, and assists in automating an application's full life cycle.
  • Nagios: This DevOps instrument supports IT infrastructure monitoring. Using the common server, network, and log monitoring systems, it is able to identify faults and fix them.


Benefits of DevOps


DevOps is currently seen as the key to accelerating various cloud platforms after being effectively deployed in the SDLC. Its all-around performance has drawn many who want to establish careers in this field, thus it is crucial for them to have solid understanding.

Shattering Silos


DevOps dismantles the traditional departmental structure, in which each work was assigned to a certain team and was thus, in essence, isolated. The result was a decrease in responsiveness and flexibility. DevOps encouraged communication and cooperation between individuals, transcending organisational hierarchical boundaries.

Constant Development


By bringing business and IT together, DevOps emphasises continual improvement. Customer satisfaction is increased by attempting to shorten feedback cycles and delivery loops.

Reduced Failures


Organizations may drastically reduce failure rates by combining DevOps with fault detection techniques. Fault detection is made simple since DevOps, which is typically deployed on top of the Agile model, encourages collaboration, modular development, etc.

Innovation and Creativity
 

In DevOps, teams create a culture of trust and cooperation that motivates them to continuously work on creativity and innovation in order to improve the corporate goods and services. These initiatives help businesses comprehend and better serve their customers.

Culture that prioritises performance


Organizations choose DevOps to become more performance-based rather than power-based. This increases the workforce's productivity and creativity while lowering turnover and boosting retention.

After learning about DevOps, its life cycle, and its key tools and functions, let's go on to talk about a well-known application of DevOps at Netflix.
 

DevOps engineer roles and responsibilities


The titans of the IT industry are currently integrating DevOps more as a culture. When used correctly and with certain roles and duties in mind, DevOps aids in bridging the gap between development and operations teams.

DevOps engineers have the following roles and responsibilities:
  • Project management and planning: DevOps engineers must be skilled in keeping track of the expenses, advantages, dangers, and many other aspects of diverse projects in addition to monitoring software and controlling and updating tools.
  • Design, development, and deployment: DevOps engineers must use risk-management strategies, tests, and other tools to design, create, and deploy automated modules for seamless operation in the production environment.
  • Support and Communication: DevOps engineers need to be excellent communicators because they frequently need to collaborate with many departments and offer support.
  • Technical knowledge: You must have some basic technical knowledge and be familiar with configuration tools.
  • Interpersonal Skills: DevOps engineers need to be accessible, well-organized, and forward-thinking team members who can multitask because they work closely with different departments within the company.
  • Troubleshooting: Last but not least, troubleshooting and developing appropriate solutions for various faults to quickly and effectively benefit the company is one of the main duties of DevOps Engineers.

To be able to do coding, scripting, and process re-engineering is the primary goal of adopting all these roles and responsibilities.
 

Jobs Available in DevOps


A vast array of job choices are made available through DevOps. Any of the above profiles can earn us huge wages if we are qualified and skilled enough.
  • DevOps Evangelist: Helps spread awareness of DevOps by pointing out its advantages.
  • Code Release Manager: Has knowledge of the Agile process and monitors overall development
  • Automation Architect: Creates and constructs automated tools and systems to carry out continuous and painless deployments
  • Experience Assurance: Improves user experience by identifying defects and ensuring that programmes have all necessary functionalities.
  • Software developer/tester: Verifies that the code complies with all initial business requirements and conducts testing and monitoring.
  • Security Engineer: To protect the business, security is integrated into the apps and products.

 






 

Can I independently learn DevOps?

To get started with DevOps, you must gradually grasp all the fundamentals. If you're going to serve as the DevOps manager for your company, this becomes much more crucial. The DevOps staff must also be knowledgeable about concepts, tools, and procedures.

Does DevOps require coding?

All development methodologies necessitate the use of programming, but DevOps engineers have a specific set of coding duties. A DevOps engineer should be knowledgeable in a variety of scripting languages, including Java, JavaScript, Ruby, Python, PHP, Bash, and others, rather than specialising in just one.

What is necessary in order to learn DevOps?

In order to effectively manage the development team and maintain a consistent, error-free flow of application installation, configuration, and validation, the DevOps engineer must have a basic understanding of several fundamental programming languages, such as Java, Perl, and Python.

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