Continuous Integration and Continuous Deployment, Delivery

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What is CI/CD?

CI/CD is a testing handle highly used in the software industry. The CI/CD pipeline is one among the simplest practices for DevOps teams to implement, for delivering code changes more frequently and reliably.

These practices would be highly helpful for all DevOps members to test the code from the online repositories. This practice is actually done by using various tools and will see those tools later in this article.

Why do we need CI/CD ?

In yearly days the software modules are allocated to the team members once the developer completes the work he/she must wait to get the return message from the tester about bugs in his/her developed module.

After the information or message arrives from the tester then only he or she may start another developing work on their respective modules. By handling this type of method, they will lose the time and also it would be little complex for the client to get the products on time.

To overcome this situation we use a Continuous integration process to do the parallel work for developers and testers. The workflow of the CI/CD pipeline will be discussed later.

Continuos Deployment and Delivery

Before going to the CI/CD workflow it is essential to know the concepts of Continuous deployment and delivery. The CD- Continuous Deployment and Delivery is an action of continuously deploying the bug free software to the server and delivering those products to the market.

Workflow of CI

There is no any complex workflow; it is actually a normal workflow which happens in continuous integration.

1. We all know how the software project gets accomplished by allocating a module to team members (developers). Then the developing work will be done.
2. Once a developer can complete the work he or she will send those codes to the online repositories like GitHub, Bitbucket, Gitlab etc.

To know about one of the online repositories GitHub kindly read this article Open source Contribution with GitHub.

If there is absence of any bugs found on several tools send that code to the developer if they detect any bugs over there. This is the work flow of DevOps engineers in the software industry.

Workflow of pipeline

3. Once committed they work to the repository, they start doing the next given modules. This type of activity or methods highly help them to get sufficient time to complete their other works. They need not wait for the tester’s message.

4. The Tester who will test all the codes in the online repository by using the CI tools like Jenkins, Travis etc. will see later about the tools.

5. These tools will help to check the code. In test case analysis if there are any bugs present, it will automatically return the failure message directly to the developer while they committed their work to the repository.

6. By this logic developers can immediately get the test case result after committing, and they will correct those mistakes or bugs immediately then recommit that work.

7. After the Continuous integration process completes, the next process deployment and delivery will happen.

Tools and Pipeline of CI

Tools are helpful to do the entire process in DevOps. Like Jenkins, Travis, CircleCI, Team city, Bamboo etc. are highly helpful testing tools.

The pipeline is the normal flow algorithms or fixed steps for those tools to carry the entire testing process. Each and every software project the pipeline may be varied according to the client’s need.

Pipeline process

Jenkin tool

Now we are going to see one of the popular tools, Jenkins. Jenkins is an open source automation server written in Java. It is wont to continuously build and test software projects, enabling developers to line up a CI/CD environment. It also supports version control tools like Subversion, Git, Mercurial, and Maven. This tool is a more popular tool which has more plugins to support the test case.

This is all about continuous integration and continuous deployment and delivery. I hope you spent time reading this is article it is fruitful and helpful.

Thank you !