Continuous Integration or CI is one of the most significant parts of DevOps. DevOps is the process of combining multiple pieces of code snippets. During software development, the codes of many developers work cumulatively to ensure built features. This processor code combination is a difficult task due to the involvement of thousands of code snippets from hundreds of developers.
Over time there have been many methods like nightly build and integration to Continuous Integration. Jenkins is just one of the most user-friendly environments set for Continuous Integration. Continuous Integration Jenkins is written in Java Programming Language.
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What is Continuous Integration?
Continuous Integration is the system where all developers write a piece of code and immediately test it. In the past, the system made the developers write their codes and combine them at a specific time at night. This system led to many problems. One of them was – combining large codes raised many errors simultaneously. Also, the testing process was hazardous in the nightly build.
Continuous Integration Jenkins, on the contrary, provides a handful of opportunities over Nightly Build. In this method, a source repository is created, which is officially connected to all the developers. Whenever a developer successfully writes a code snippet, they add it to the source code.
The whole system is connected to a Continuous Integration server that runs the modified source code. A successful compilation is forwarded for testing, and a failure is returned to the developer. Eventually, successful testing is immediately updated for the user end.
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In this way, every developer does not need to modify many bugs simultaneously from a large piece of code. They can write and test together plus, the system never suffers the pressure of combination. There are many Continuous Integration servers available such as Bamboo, CruiseControl, TeamCity, and Jenkins. Jenkins has some advantages over the others though.
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Role of Jenkins in Continuous Integration
Jenkins is an API (Application Program Interface) or a tool of automation for continuous integration. It has multiple plugins available to support the procedures of CI such as GitHub, Slack, HTML Publisher, Maven 2 Project, Amazon EC2, and Docker. Jenkins can support a variety of different programming languages on many platforms of the Operating System.
This Java tool can support many stages of development, starting from building, documentation, testing to ending with deployment, and static analysis. Multinational Companies efficiently use Jenkins to upgrade their building strategies. Continuous Integration Jenkins can enhance the speed of development up to multiple times.
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The primitive version of Jenkins was Hudson, which started its journey in 2004. Kohsuke Kawaguchi being tired of developing and testing-built Hudson. Later, Oracle divided Hudson to make Jenkins, which later overtook Hudson in popularity.
Features of Jenkins
- Easy Installation: Jenkins is one of the most popular self-contained Java programs. It is ready to run on multiple platforms such as Windows, Mac OS, and Linux. It is widely used by more than a million users across the globe. It has an installation count of nearly one lakh and forty-seven thousand.
- Easy Configuration: Jenkins is easy to set up. Compared to previous technologies, it has a much-improved procedure with a user-friendly web interface. It also includes error checks and built-in help options.
- Plugins: Jenkins has thousands of plugins. The update centre is responsible for integrating every tool a developer adds through CI and CD toolchain.
- Extensible: It is very extensible for the developer’s end. Due to its user-friendly plugin features and understandable codes, it allows every developer to modify it upon their own needs. So, it eventually creates an infinite amount of opportunities to innovate. Although, extending Jenkins is primarily different from creating a custom version of Jenkins.
- Distribution: Jenkins is very often easily distributed among multiple programming devices to support a faster building mechanism. So, it enables a process of easy deployment.
Also Read: Jenkins Interview Questions & Answers
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Jenkins pipeline is a continuous set of extensible plugins, which implements the Continuous Delivery System. It primarily consists of four stages.
The Build stage refers to the initial code snippet writing or upgrading. Then it is deployed through the Deploy stage. The Test stage, as it says, refers to the testing of the code and, finally if successful, the feature is Released.
Advantages of Jenkins
- Jenkins is monitored by an open community developer society. They arrange meetings almost every month and take suggestive feature ideas from developers. This community enhances the development and makes upgradation of Jenkins very adaptive. The developer audience directly reports the needed features and makes the tool rich in pros.
- With modern advancement in the tech world and the Big Data era, cloud computing is a prominent tool for Computer Science. Jenkins also supports cloud-based architectures. Hence, it can be easily incorporated into any cloud platform, making it even more convenient to use.
- Moreover, to summarise Jenkins, it can be said that it is a tool for developers developed by developers.
Disadvantages of Jenkins
Although Jenkins is a very efficient tool for development, it still has some flaws, which are better to know as a developer.
- Despite its open community and continuous development, its UI is slightly backdated.
- Jenkins runs on a server. So, it’s not easy to always handle it, as the developer needs to have some potential server administration knowledge.
- Sometimes, Continuous Integration Jenkins breaks down even for slight changes in the program. Hence, it requires developer attention, which is often very time-consuming.
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So far, we have discussed the basics of Continuous Integration Jenkins, the role of Jenkins in Continuous Integration, features of Jenkins, and its advantages and disadvantages. If you have already grown your interest to learn Continuous Integration Jenkins compactly and thoroughly, then do not waste your time and register yourself for upGrad’s Advanced Certificate Programme in DevOps from IIIT Bangalore
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What is automatic storage in C?
The allocation of a block of memory to a variable in C++ is known as storage. A heap is used to allocate memory, and the programmer is in charge of managing it. It is critical to release memory when it is no longer required, or the program will crash due to a lack of memory. It's also crucial to make sure the data in the memory block is properly initialized. Automatic storage is a memory allocation strategy that allocates memory for local variables using the stack. When a function is called, the compiler allocates enough memory on the stack to accommodate the function's local variables. When the function returns, the memory is automatically released. It is important to note that the compiler will not allocate memory for local variables if the function is called from another function.
What are the benefits of Jenkins?
Jenkins is an open-source software development platform that aids in the automation of the software development process. It's simple to set up and configure, and it works on a wide range of platforms. It is a tool that developers, testers, and operations personnel can use to facilitate collaboration across various groups. It also ensures that software is always up to date and that regressions are rapidly identified and corrected. Similarly, it is a well-liked program with a sizable user and developer community behind it.
Why should I build a global plugin for my software?
directory contains this directory. It's where you keep plugins that are used by multiple applications. A local plugin directory, meanwhile, is used to store plugins that are needed by a particular application. Its primary use is to store plugins that are unique to that application and are not utilized by any other program. There are several reasons why you should create a global plugin for your product. The first argument is that it increases the accessibility of your product to users all around the world. Users can install and use your product in their own language and area with a global plugin. This can improve the usability of your program and help you reach a wider audience. Another advantage of creating a global plugin is that it might aid in the development of a stronger community around your software. Users from all around the world may cooperate on projects, share ideas, and help enhance your product with a global plugin. This might increase the appeal of your software and help gain popularity.