Table of contents
Hello folks , I'm Lavish Lekhari and in this blog I'll be sharing some introductory information about DevOps + its Lifecycle. Every piece of information in this blog is based on till date information and statistics.
Few of the most often questions that are raised for DevOps are:
- What do you mean by DevOps?
- Is this something new? I've never heard about it?
- What are the futuristic approaches for DevOps?
- How can an individual seek career in DevOps?
- How much does an average/junior/senior DevOps Engineer earns per annum?
- What are the most popular and most common tools with automation solutions which are used in DevOps?
There are many more such questions and doubts that are raised very often. No worries! We will be discussing everything in brief in this blog and eventually we will be laid down with all the answers and ambiguity.
DevOps
Now many of us are really demented on this topic and clarification that what is DevOps? Probably because of this:
Back to the consequential discussion
What is Devops?
Now there is no single agreed DevOps definition but at top of everything , defining it in much simpler terms could be that "DevOps is the need for a set of consistent practices that help organizations build, deliver and maintain software and IT services in a much better & quicker manner, also make them more reliable".
Now let's understand this concept in a much more brief manner by putting up some basic questions and answering them.
What does DevOps stand for?
As the name suggests , it is a combined approach of Software Development (Dev) and IT Operations (Ops). So it's a union of technology, people and processes to dispatch continuous value to the customers. Particularly, DevOps is not a specific technology, framework, or set of standards.
(Aforementioned is the diagram depicting DevOps Environment with its tools)
History of DevOps
Until 2000, software was built, deployed, and updated using the waterfall model. It is a linear approach to large-scale development. So, software development teams would spend months of time developing the code. And spent several other months integrating the code. Next, the testing and QA team would spend more time on testing the code. This results in huge risks and an enormous amount of time to go live. To speed up the development process and quality, development teams started using an iterative approach.
This iterative approach was known as Agile Software Development or Agile Methodology. These agile practices were more efficient till 2007. After that, software development communities raised a concern that they feel a fatal level of dysfunction. To overcome all the dysfunctions, Flickr engineers John Allspaw and Paul Hammond represented their own DevOps-like methodology at a conference in 2009.
Their title stated, “ 10+ Deploys per Day: Dev and Ops Cooperation at Flickr “. The same year, a software consultant named Patrick Debois organized the first DevOps Day in Belgium. The hashtag ‘#DevOps’ was used, and then more DevOps Days were held worldwide. Thus, the term DevOps came into existence.
(source credits: openxcell)
If you want to know more about "The History of DevOps" check this page → History Of DevOps
Benefits of DevOps
So, Now we came to know about a lot many of things about DevOps and its Origin. Let's move to the benefits of DevOps and its working.
When development and operation teams are combined as DevOps, they reduce time, deploy frequently, and develop high-quality software. Organizations that adopt DevOps function in an effective way. DevOps organizations can deliver with speed, innovation, and the latest functionality. DORA’s State Of DevOps Report shows that top DevOps performers deliver code faster, have fewer issues, and solve problems quickly.
As you can see in the image mentioned above , there are multifarious benefits of DevOps.
Lifecycle of DevOps
Knowing DevOps is incomplete without understanding the DevOps Lifecycle, So here is a quick definition of DevOps Lifecycle:
DevOps Lifecycle is nothing but a set of iterative, automated, and continuous development processes designed for rapid software development process while maintaining high quality.
A standard DevOps Lifecycle consists of 7 phases. Here are they:
1. Continuous Development
Continuous Development is the first and foremost phase of the DevOps lifecycle. In this phase, planning and coding of the software take place. The version of the project is also decided during the planning. At the same time, software developers write the code for applications. The planning does not require any primary tools, but there are certain tools for maintaining the code. While developing a source code begins by choosing a development language. Python, C, C++, Ruby, and JavaScript are some of the DevOps most popularly used languages.
2. Continuous Integration
Continuous Integration, generally known as CI, is one of the most important phases of DevOps Lifecycle. Continuous integration is a software development practice where developers need to commit frequent changes to the source code. The changes occur daily or at a gap of a few days . The code is compiled and goes through unit testing, integration testing, packaging, and code review. Thus, the code with new functionalities is continuously integrated with the existing source code.
3. Continuous Testing
This process consists of performing tests every time when there is a code change in the DevOps pipeline. This also cuts down the time taken to deliver feedback to the developers so that the most recent changes in the code are pushed to the code repository.
The execution of the tests is often automated so that these tests occur at regular intervals without the need for repeated manual interference. At every individual level of the software development process or life cycle, tests have to be conducted frequently. Additionally, the entire codebase needs to be tested as a whole.
A test environment is created with the help of Docker and Containers
4. Continuous Monitoring
In this phase of DevOps life cycle, we monitor the performance of application. The important and vital information related to the software is recorded here. This information is then used to organize the functionalities of the entire application. Errors such as ‘server not reachable’ or ‘low memory’ are resolved in this phase. Also, the root cause of the issues are found and fixed. Other network-related problems are also taken care of in this phase of DevOps lifecycle.
5. Continuous Feedback
The improvements done in continuous monitoring are analyzed here. Developers can gauge the outcome of the final version of the software. The experiences of a software tester and end clients are shared in this phase. As a result, this can be a turning phase of the project in DevOps lifecycle. The feedbacks are addressed, and changes are made accordingly. Once all the changes are implemented, the DevOps team moves forward to release the new version of the software.
6. Continuous Deployment
Continuous Deployment is a phase where finalized code is deployed to the production servers. The key aspect of the continuous deployment phase is configuration management. It helps to deploy code on all the servers, which creates consistency in the application. Code is released to the server, and updates are scheduled accordingly. Overall, what continuous deployment does is make an application easy to run on different computers.
7. Continuous Operations
Continuous Operations is the last and the shortest phase of DevOps lifecycle. The main aim of continuous operations is to automate the release of software and its updates. The development cycle in this phase of DevOps is short, allowing engineers a faster time to market the product.
FAQ
Now let's hop to the most-often asked questions and doubts that you might be wondering since a long time or after getting a solid outline for what DevOps is after reading this blog.
Q1.How can an individual seek career in DevOps? How the technology is adopted? How do we adapt it? What are the tools that are used in this technology?
Answer: Solution to your every question
Q2.How much does an average/junior/senior DevOps Engineer earns per annum?
Answer:
(source : Arc)
Q3.What are the most popular and most common tools with automation solutions used which are in DevOps?
Answer: Naturally, the best DevOps tools for you, depend on your unique needs and what your team already has in their kits. Keep in mind that each tool has a specific purpose, but many of these tools can also be combined together for fantastic results.
Click here to get an overview for all the DevOps tools with respect to each phase of the lifecycle
Summary
Congratulations! You're a really good reader. So, as now you've finished reading all the core pieces of information of this blog at this point. Here is the quick overview of what you've learned from this blog.
→ What is DevOps
→ What does DevOps stand for
→ History of DevOps
→ Benefits of DevOps &
→ Lifecycle of DevOps
Denouement & Connections
Thank you so much for reading this blog in your spare time , I really appreciate it. I tried to cover all the rudimentary information about DevOps and its Lifecycle. If you find this blog helpful, please like and share it also make sure you follow me for more blogs.
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