Over the past few years, the DevOps is dominating in the realm of IT. In this technology-driven era, DevOps is emerging as a classical requisite for almost every Software development company. Though DevOps is a buzzword in these days, still people have a scant idea about this trend. Let’s take a look at what is DevOps and how much an organization get benefitted by implementing it.
What is DevOps?
Basically, DevOps is a concept which has many facets. The DevOps highlights the importance of the alliance between the software developers and other IT professionals. The term DevOps was invented by a Belgian named Patrick Debois in 2007 and he is also known as the Father of DevOps. The philosophy of DevOps was invented by the congregation of many technological tools like agile, lean, operation management, IT service management, and the theory of constraints. In a nutshell, DevOps supports two prime trends and they are agile operations and integration between the staff of a company and its operation.
Before DevOps application, the teams of an organization were responsible for gathering business requirements for a software program and for writing codes. Then a separate QA was to test the program in an isolated development environment. If all the requirements were met, then the code was released for operations to deploy. Moreover, the deployment teams were fragmented into subgroups like database and networking. The problems with this approach are,
- Dev team is not aware of what QA team is doing.
- Each team has their own point of views which can lead to inefficiency and finger pointing specially when the situation goes wrong.
- Both QA and Ops are working across many features and have a little knowledge about the actual purpose of the business.
But DevOps extirpates all these challenges. This approach establishes collaborative cross-functional teams which share all the responsibilities for maintaining the system which runs the software. This will enhance the quality of the work and minimizes error and time.
What are the benefits of DevOps
The benefits of DevOps are unfathomable. The companies which have implemented DevOps are making their business and operation process simple and plain. DevOps organizations can deliver a job with maximum speed, functionality, and innovation.
- Continuous delivery of the software
- Less complexity which a company can easily manage
- Faster resolution of the problems
- With this technique, the teams will become more efficient, productive, and satisfied.
- Engages more employee for a project
- Greater professional development opportunities
- All the features are delivered in a faster way with this model.
- This provides more stable operating environments
- Improves communication and collaboration between the members of the team.
- With this model, a company can invest more time on innovation because a minimum time is required for fixing or maintaining.
DevOps is basically, an agile relationship between development and operations. If you want to know DevOps thoroughly, then you need to understand the life cycle of DevOps. The DevOps lifecycle is nothing but a continuous process. Here, we are giving the brief of the life cycle.
Non-stop or continuous development: In this phase of the cycle, the development of software takes place without any halt. Here, the entire software development process is divided into smaller development cycles and thus, it takes lesser time for the development and delivery. The continuous development incorporates coding also. Then, they used to create different forms of the code using SVN and Git. Once the coding is finished, then the team used to wrap the code into an executable folder to forward it to the quality analysts for testing the codes.
Non-stop or continuous testing: The job of the quality Analysts is to use various tools like Selenium, JUnit, etc. to remove the bugs while testing the developed software. They need to ensure that there no flaws or errors in the functionality of the software. Testing multiple parts of the code takes place continuously and once each part is tested, it is then integrated into the main code.
Non-stop integration: Any code which provides a new functionality is integrated with the main code in the integration stage. Since continuous development and testing of codes take place, hence to update the new code, integration must be unified. The updated code must ensure zero failure so that once the new code is added, there will be no error while you run the software.
Non-stop or continuous deployment: In this phase, the software is deployed to the production house. All the codes developed are deployed to the servers and ensure that they are accurate. Since the deployment process is a nonstop phenomenon, hence the automation tools like the SaltStack, Puppet, Chef etc. play an important role. Deployment should be done in such a way that any changes made to the code, should not affect the runtime of the code even in high traffic of the website.
Non-stop or continuous monitoring: Monitoring plays an important role in the DevOps lifecycle. It determines the quality of the entire DevOps lifecycle. Monitoring determines whether an operation team takes care of the inappropriate system behaviour or not or if any bugs that may arise during the user activity. If you want to maintain the system properly, then all the bugs should be highlighted frequently so that the degrading performance of the system can be avoided. To solve this problem, the operations team uses popular tools like Sensu, NewRelic, and Nagios. These tools basically improve the efficiency and dependency of the system. If you highlighted any major issue during the monitoring phase, then you should inform this to the developers so that they can solve the issue in the continuous development stage.
You should perform all the above-mentioned stages in the DevOps lifecycle continuously on the loop, until and unless you won’t get the desired quality of the product that you are looking for.
Important components of DevOps
Now, you are aware of the benefits and the life cycle of DevOps. In this part, we are going to discuss the important and the major components of DevOps system.
Automated delivery pipeline
a)The pipeline: A typical delivery pipeline should have the following steps.
- The developer pushes code to source control.
- A build is triggered that will compile the source code and run tests.
- An artefact is created.
- Deploy the latest artefact to the Development environment at a defined schedule.
- Deploy to the System Integration environment the artefact that was last deployed to the previous environment at a defined schedule. This schedule can be different from Development environment schedule.
- Deploy to the Production environment the artefact that was last deployed to the previous environment at a defined schedule. This schedule can be different from the schedule of the other environments.
b)Automation: The next step is automation. Here, except the first step when a developer pushes new code to source control, every other step should be automatically triggered and executed.
Configuration management: The first step of configuration management is to externalizing those configuration concerns from source code into a configuration file. There are two approaches.
1)At runtime: When an application starts up, it will determine the environment in which it is running and load the appropriate configuration file.
2) At deployment time: Depending on to which environment you are deploying, the deployment script will write the configuration file with the appropriate values
Integration: Integration is a step where you need to simply deploy your application to an environment where it will interact with other applications and components in the ecosystem.
Testing: You can only deploy the application to production once it has been fully tested and certified in the lower environments. Hence, you should go for automated testing because then you can reduce the time needed for the new code to be deployed to production.
Monitoring and reporting issues: Instead of waiting for the users or testers to report issues, you need to have an automated process which will detect the problems or issues and potentially solve them before your users notice them.
The firefighter role: When your development team is taking the duties and responsibilities of “ops” as a part of DevOps system, then they may face a chunk of issues every day. Here comes the role of a firefighter which will rotate all the issues among the team. All issues that crop up are directed to the Firefighter and it gathers all the issues and try to solve those issues by itself or may take additional help from the team if the issue is bigger.
Infrastructure as a code: Treating infrastructure as the code does not only mean to write code for infrastructure but it also means to apply the aforementioned best practices to infrastructure code. The markets are thronged with many tools which will help you to write, run and test infrastructure code (server provisioning: Chef, Vagrant, Puppet, Containerization: Docker, Docker compose, and Task runners: Gulp, Rake, and Gradle)
These are some essential components of DevOps method.
DevOps approach focuses on standardizing development environments and automating delivery processes. That’s why it improves delivery predictability, efficiency, security and maintainability. This method gives the developers more control of the production environment and a better understanding of the production infrastructure.
Norjimm Pvt Ltd is a leading Software development company in India, with teams having a project experience of 8+ years with a deep understanding of hardware behind the software system. We create unmatched applications that are beyond the expectations of the newly emerging technology trends.