Oct 27 2023

How to Supercharge DevOps with Docker and Jenkins

DevOps teams can work more quickly while eliminating coding errors.

In the world of software development, a continuous integration and continuous deployment pipeline is a series of steps that must be performed in order to deliver a new version of software. CI/CD pipelines provide a method of improving software delivery throughout the software development lifecycle via automation.

Two useful tools, Docker Compose and Jenkins, make it easier for developers to streamline their CI/CD pipelines. Compose is used to define and run multicontainer Docker applications, while Jenkins is open-source CI/CD automation software that integrates with Docker. Here’s how to set up a streamlined, efficient deployment process for containerized applications.

1. How to Run Software Components Automatically

Docker Compose lets developers focus on the component they are working on, running all other components automatically. This is why it is used on a CI/CD pipeline, automatically building and running all of the application components at once.

By combining the tool with orchestrator tools, such as Kubernetes and OpenShift, Docker Compose files will be executed at different stages to deliver a streamlined CI/CD pipeline. This ensures that the focus can remain purely on coding.

DISCOVER: Learn more tips on how to effectively use DevOps to build digital products.

2. How to Conduct Rapid Code Testing with Jenkins

In most cases, there will be many developers working on the same project, each needing to test code at different times using a software configuration management tool. Jenkins and its various plug-ins can help to create a secure and automated CI environment to test code quickly, preventing any delays in the pipeline.

Jenkins allows you to integrate a range of testing tools and provides real-time feedback. For example, to simplify report generation and compliance documentation, many developers integrate a software development kit, or a collection of software development tools and resources, into their pipelines. This can hyperautomate the creation of test reports, making them easily accessible and shareable for compliance and auditing purposes.

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3. How to Use Jenkins to Deploy Code Faster

Jenkins verifies code automatically, alerting developers of any potential bugs so they can be fixed as soon as possible. Once amended, the committed code is already in a usable state to enter the production stage and be deployed as a routine activity. 

Using the tool for real-time verification purposes will significantly speed up the transition from testing to deployment. 

4. Three Ways to Further Streamline CI/CD Processes

Speed is paramount when it comes to an optimized CI/CD environment, which is why it is wise to consider ways to streamline Docker Compose even further. You might consider using a minimalistic Linux distribution such as Alpine to help reduce the size of Docker images, keeping elements such as port openings consistent to avoid an unnecessary rebuild and copying dependencies first before setting the working directory to avoid reproducibility issues.

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