DevOps is how software developers (dev) and operations teams (ops) work together. It's software development that allows teams to work together. They are able to split work and duties more effectively. The goal is to improve software development and operations. We want to make things run smoother and more efficiently by working together.
This iCert Global DevOps training at the introductory level will teach you DevOps concepts and tools through examples and demos. You will see how a DevOps pipeline is executed with modern infrastructure. Besides, it will provide an overview of various DevOps projects and phases.
What is DevOps?
DevOps is a combination of the two terms: Development and Operations. It is a practice that enables a single team to have the entire software development life cycle, from development to testing, deployment, and monitoring.
The primary purpose of DevOps is to accelerate the software development process. It facilitates the distribution of updates, patches, and new features in a rapid manner. This ensures that everything aligns with business objectives.
DevOps assists in creating quality software promptly and reliably. It contains several steps such as continuous development, integration, testing, deployment, and monitoring.
Waterfall Model Stages
1. Getting Requirements and Analyzing – Collect requirements from the client and examine them closely.
2. Design Phase – Make a design for the software, including how it will appear and operate.
3. Implementation Phase – The programmers start programming and developing various components of the application.
4. Verification Phase – Unit test, integration test, and performance test the application.
5. Deployment Phase – Deploy the well-tested software to the production servers.
6. Maintenance Phase – Monitor the software’s performance and fix any issues that arise.
Strengths of the Waterfall Model
• Simple to read and operate.
• Easy testing and analysis is feasible.
• Saves time and money.
• Ideal for small projects with clear-cut requirements.
• Enables departmentalization and managerial control.
• Disadvantages of the Waterfall Model
• Uncertain process and risk.
• Narrow comprehension of recent progress.
• Not suitable for projects with variable requirements.
• It's hard to make changes after testing starts.
• The product is completed only when development is complete.
• Not suitable for big and complicated projects.
Agile Methodology
Agile is an iterative software development process. A project is broken down into smaller components, referred to as iterations or sprints. Steps within each iteration are akin to the Waterfall model, i.e., Gathering Requirements, Designing, Developing, Testing, and Maintaining. Agile sprints are usually 2 to 8 weeks in duration to allow for quick and continuous improvements.
Agile Process
1. First Iteration – The business releases the app with the primary features.
2. User Feedback – Customers provide feedback on the application’s performance.
3. Improvements & New Features – Significant modifications are done, and new features are added.
4. Next Iteration – The revised program is deployed again.
5. Repeat Until Final Product – Keep repeating until the software is of the quality you want.
Benefits of the Agile Model
• Quick to adapt to new requirements.
• Early error correction minimizes the cost of the process.
• Enhances product quality and minimizes mistakes.
• Encourages open communication among team members.
• Suitable for big and long-term projects.
• Takes very few resources and is simple to handle.
Drawbacks of the Agile Model
• Highly dependent on accurate customer specifications.
• Hard to estimate time and effort for large projects.
• Less suited for extremely complex projects.
• Lacks detailed documentation.
• Higher risks in maintaining the software over time.
DevOps Tools for All Phases of the DevOps Life Cycle
DevOps employs a wide range of tools for every segment of software development. They enable teams to design, write, test, and deploy software at a rapid rate. They ensure that everything proceeds smoothly as well. Every step might occur many times until a final product is ready.
1. DevOps Tools for Continuous Development
Planning and coding are the steps involved in continuous development. It is the initial step where the developers work on the software.
• Jira – is a project planning and management software. It schedules tasks, monitors progress, and solves issues for teams. DevOps teams utilize Jira for Agile development. This approach assists them in enhancing software progressively by prioritizing user feedback.
• Git – A free software used by developers to monitor and record changes in code. It enables numerous people to work on a single project without becoming confused. Developers can see past versions of the code and fix errors at will.
• GitHub – An internet-based service integrated with Git. It assists groups in storing, collaborating, and sharing code projects. It also includes support tickets to track issues and enhancements.
2. Most Essential DevOps Tools for Smooth Integration and Rapid Delivery
Once coded, the process is that of continuous delivery and integration. This is where the developers integrate their code and prepare it for release and testing.
• Jenkins is an open-source tool that is widely used for a number of DevOps activities. It offers automated testing of code. They can find bugs and make sure everything works correctly before deployment to production.
• Jenkins is a continuous delivery tool. Jenkins automates taking software through stages until it is ready to be released.
3. DevOps Tools for Continuous Testing
Continuous testing is checking for errors in the software before it's delivered. There are automated tools which speed it up and ensure things are going properly.
• Selenium – is an open-source tool that can be used by anyone to automate web application testing. Test scripts can be written in programming languages such as Java, Python, and C#. It can also execute tests on different browsers and operating systems.
• Bamboo – This is another piece of software that enables teams to execute tests faster and more efficiently. It allows tests to be executed simultaneously. This implies numerous tests can be executed simultaneously. This conserves time and enhances quality.
4. DevOps Tools for Continuous Deployment
Continuous deployment is where tested code is pushed straight to production servers. It can already be used by users.
• Docker is one of the most used containerization tools. It assists developers in combining applications and executing them. In doing so, the applications function similarly on various computers.
• Docker makes software installation more convenient. It makes sure that software performs nicely, regardless of where it's installed.
• Docker Hub is a web service. It simplifies the sharing and management of software packages for developers. It also supports integration with GitHub for better collaboration.
5. DevOps Tools for Continuous Feedback
Feedback is a very crucial aspect of DevOps. Feedback enables teams to enhance software. Improvement is received from ideas and issues observed by developers and users. Feedback continuously enables teams to solve issues in time and enhance the software.
Feedback originates from two sources. It can be internal, such as employee feedback or error messages. It can also be external, such as customer complaints or social media. DevOps teams utilize special tools to gather and organize feedback to improve things.
• Jira – Service Management – It is a DevOps solution that enables teams to collect feedback from multiple sources in a single place. It allows customers to provide their feedback and requests in the form of a widget, portal, email, or a custom help center. This enables teams to fix issues faster and communicate better.
Parlor – Parlor is a firm that helps companies get feedback from consumers. It talks to users in real time so that it can understand what they need and what they experience.
Parlor also works in conjunction with other business software to help manage feedback better. It works with:
• Excel (to manage data)
• Jira (technical task tracking)
• Slack (for team communication)
• ZenDesk (for customer service tickets)
6. DevOps Tools for Continuous Monitoring
Continuous monitoring involves keeping an eye on the application frequently for errors, system problems, and performance faults. This helps the software operate at a high level without creating any issue for users.
A good DevOps monitoring tool must be capable of monitoring both:
• Applications (to see if they are running normally)
• Servers (to make sure that they can support the workload and are running smoothly)
Prometheus – Prometheus is an open-source monitoring tool. It enables DevOps teams to observe and monitor performance. It was designed to enable continuous monitoring and rapidly identify issues in servers and applications.
Key features of Prometheus:
• Saves performance data into a designated database for easy recall.
• Provides client libraries to enable developers and QA teams to track valuable data.
• Provides various methods of data visualization to understand the system's performance better.
7. DevOps Tools for Continuous Operation
Continuous operation requires applications and services to be always running without any downtime or interruption. This way, users can use the software at any time without any issues. Some of the above DevOps tools facilitate continuous operation by automating, monitoring performance, and resolving issues rapidly.
• Opsgenie – This incident management tool enables teams to locate, respond to, and repair issues in a timely fashion. It alerts the appropriate team members when problems occur, enabling companies to maintain their systems running and available with little downtime.
Opsgenie – Opsgenie is a Devops platform that assists teams in handling service disruptions before they become critical issues. It alerts the correct people at the correct time so that they can address things in a timely manner and maintain applications running.
Key elements of Opsgenie:
• Cross-compatible with other programs like ticketing software, chat software, and monitoring software.
• Notifies through various channels to ensure the appropriate team members are notified.
• Automated escalation is when if a critical problem is not fixed within a reasonable time, it alerts upper-level support to help.
Opsgenie assists organizations in reducing downtime and maintaining their services running and available due to these capabilities.
Advantages of DevOps
1. Speed – DevOps gets businesses moving quicker by enhancing efficiency, fast response to change, and faster time to market with new ideas.
2. Rapid Delivery – Quick releases enable firms to make products faster and remain ahead of the game.
3. Reliability – DevOps practices of continuous integration and continuous deployment enable teams to deploy updates without interrupting the system and provide a great user experience.
4. Improved Collaboration – Operations teams and developers collaborate, share tasks, and optimize workflows. This reduces waste and saves time.
5. Security – DevOps employs automated security testing to make the software secure without slowing down the development process.
What is a DevOps Engineer?
A DevOps Engineer is an individual who understands the Software Development Lifecycle and employs automation tools in order to develop CI/CD pipelines, i.e., continuous integration and continuous delivery.
Their professions are:
• Collaboration with developers and IT staff to synchronize code releases.
• Automated work to accelerate development and deployment.
• Improving monitoring, testing, and security so that the application runs smoothly.
A DevOps Engineer is either a developer who is interested in learning deployment and running systems or a system administrator (sysadmin) who is enthusiastic about coding and scripting in order to improve software deployment.
That is all for this article on What Exactly is DevOps. I hope you now get everything that we have discussed. Do you have questions? Just leave them in the comments section.
If you work in IT, you might have heard of DevOps which is a very trending topic these days. If you are prepared to make a career in DevOps, it can be a good and successful option. In order to enhance your skills, join a Post Graduate Program in DevOps to learn more and get hands-on training.
How to obtain DevOps Certification?
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Conclusion
Since you know about DevOps now, take a look at the DevOps Training Course by iCert Global. They are a trustworthy online learning platform with many satisfied students worldwide.
The iCert Global DevOps Certification Training will instruct you on how to use DevOps tools and procedures such as Puppet, Jenkins, Nagios, Ansible, Chef, Saltstack, and Git. These enable you to automate most phases of the Software Development Life Cycle (SDLC). The training involves basic to advanced methods, including everything that you must perform well in DevOps. You can also check out our DevOps Engineer Masters Program to enhance your skills.
If you have a question, please put it in the comments section, and we will gladly help!
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