Introduction

What is Jenkins?

Below is the architectural diagram of Jenkins:

What is GitHub Actions?

Below is the architectural diagram of GitHub Actions, which shows how it operates in a CI/CD pipeline setup:

Building and Pushing a Docker Image: Jenkins vs. GitHub Actions

Setting Up Jenkins: Build and Push Pipeline

Steps to Install and Configure Jenkins:

Install Jenkins Using Helm

Install Required Plugins

Set Up Docker on Jenkins Node

Create a Pipeline for Docker Build and Push

Run the Pipeline

Setting Up GitHub Actions: Build and Push Workflow

Steps to Configure GitHub Actions:

Add a Workflow File

Define the Workflow

Add Secrets

Commit and Push Changes

Which One Is Better: Jenkins or GitHub Actions?

When Jenkins Might Be the Better Option

When GitHub Actions Might Be the Better Option

Final Thoughts

Do You Really Need to Switch from Jenkins to GitHub Actions?

Are There Alternatives to Jenkins and GitHub Actions?

1. GitLab CI/CD

2. Azure DevOps Pipelines

3. CircleCI

4. Bitbucket Pipelines

Frequently Asked Questions

1. Which is better: Jenkins or GitHub Actions?

2. Is Jenkins outdated compared to GitHub Actions?

3. When should I use GitHub Actions instead of Jenkins?

4. When is Jenkins a better choice than GitHub Actions?

Conclusion

Read More from KubeBlogs Continuous Integration and Delivery is a key part of any software application. Be it a mobile app, a backend app or a website - everything requires CI/CD to make things easier for everyone. From testing and building code to deploying it across environments, CI/CD tools help simplify workflows, reduce manual tasks, and maintain consistency across the development process. There are tons of options available in the market when it comes to CICD. Among the many available, Jenkins and GitHub Actions stand out as two of the most popular and effective options. Jenkins has been there for a very long time, is mature and is being used by thousands of teams across the globe. On the other hand, GitHub Actions is designed to work naturally within GitHub, is comparatively newer and is tightly bound to Github (which can be a deal breaker for some folks). While both are great - which one do you choose? At KubeNine we are inclined towards Github Actions and we’ll tell you why! Jenkins is a widely used open-source automation server that helps developers build, test, and deploy applications efficiently. For over a decade, it has been a cornerstone of CI/CD workflows, providing teams with the tools needed to automate repetitive tasks. Supported by a massive community, Jenkins offers an extensive plugin library with over 1,800 plugins, allowing it to integrate with a wide range of open-source and enterprise tools to handle diverse automation needs. Despite the rise of CI/CD tools like GitLab CI and GitHub Actions, Jenkins is a popular choice among organizations due to its flexibility and extensive capabilities. According to the Developer Ecosystem Report, 54% of developers rely on Jenkins for their CI/CD needs, showcasing its enduring relevance in the industry. GitHub Actions is an automation tool built directly into GitHub, allowing developers to create workflows for building, testing, and deploying applications. It simplifies the process of setting up Continuous Integration (CI) and Continuous Delivery (CD) by using YAML-based configuration files stored in the same repository as the code. Also, its completely managed so the users do not have to worry about setting up and managing any instance. This makes it particularly attractive. One of the key strengths of GitHub Actions is its flexibility. Developers can choose from a vast marketplace of pre-built actions that connect with various tools and services, enabling efficient automation without needing to start from scratch. GitHub Actions is quickly gaining popularity in the CI/CD space. According to the Developer Ecosystem Report, 51% of developers use GitHub Actions regularly for CI/CD tasks, making it the second most widely adopted tool after Jenkins. Its adoption is especially prominent in personal projects, where 37% of developers rely on it. The simplicity of its setup and its native connection with GitHub repositories make it a go-to choice for many developers and small teams. GitHub Actions also plays a significant role in the Software Development Life Cycle (SDLC) by automating repetitive tasks like testing and deployment. This not only saves time but also helps developers maintain focus on coding. Let’s walk through the process of setting up a pipeline for both Jenkins and GitHub Actions to build a Docker image and push it to a Docker repository. By comparing the steps, we can better understand the ease of use, setup complexity, and overall user experience. We will use Helm to install Jenkins on a Kubernetes cluster and create a pipeline for building and pushing a Docker image. Add the Jenkins Helm repository: Install Jenkins on your Kubernetes cluster: Retrieve the admin password: Access Jenkins at http://:8080 and log in using the admin credentials. Go to Manage Jenkins > Plugins and install the required plugins, such as Pipeline and Docker Pipeline. Ensure Docker is installed on the Jenkins agent node.

Add the Jenkins user to the Docker group: In Jenkins, create a new Pipeline item.Add the following script to your pipeline configuration (replace placeholders with your values): Save the pipeline and click Build Now to execute the steps. Jenkins will:Pull the source code from your repository.Build a Docker image.Push the image to your Docker repository. GitHub Actions makes it easier to define workflows directly in the repository using YAML files. In your repository, create a folder .github/workflows if it doesn’t exist.Add a file named docker-build-push.yml. Add the following workflow to the file (replace placeholders with your values): Go to your repository’s Settings > Secrets and variables > Actions.Add two secrets: Push your changes to the main branch.GitHub Actions will automatically run the workflow, building the Docker image and pushing it to Docker Hub.From a practical perspective and based on our experience, we’ve worked extensively with both Jenkins and GitHub Actions, offering services to set up and manage both tools for different teams and projects. What we’ve observed is that there’s nothing wrong with choosing either tool—it all comes down to your unique requirements. The question is: There’s no such thing as a universally “better” tool in the world of CI/CD. However at KubeNine we are inclined more towards Github Actions. The right choice entirely depends on your team’s requirements, project scale, and infrastructure needs Jenkins is ideal if you need a self-hosted solution where everything is completely under your control. You can install Jenkins from scratch and configure it to suit your exact requirements. It has a rich ecosystem of over 1,800 plugins, allowing integration with countless tools and services. Whether you need advanced pipeline customization, on-premises hosting, or compliance with strict organizational policies, Jenkins gives you the flexibility to achieve it all. However, it’s worth noting that the support for plugins in Jenkins has seen a decline in recent years. Some plugins are not actively maintained, and keeping them updated can become a challenge. Additionally, the manual setup and maintenance required for Jenkins can be time-consuming, especially for teams that are new to CI/CD. GitHub Actions is a great choice if you’re looking for something simple and fast. Unlike Jenkins, it doesn’t require a complex setup process. As we demonstrated in the pipeline example above, all you need is a YAML file in your repository. You simply define the steps, like building a Docker image or running tests, and GitHub handles the rest for you. For instance, in our example, setting up a pipeline in GitHub Actions was as easy as writing a few lines of YAML. Want to build a Docker image? Just add one line to specify the Docker build action. Need to push the image to Docker Hub? Add another action for Docker login and push. It’s all optimized for simplicity and speed, making it especially appealing for small to medium-sized teams or personal projects. If you need more control, GitHub Actions also supports self-hosted runners. This allows you to host your workflows on dedicated virtual machines or servers, ensuring enhanced security and compliance. For example, in sensitive environments like banking or healthcare, where dedicated VMs are required for better isolation and control, self-hosted runners provide a strong alternative to Jenkins. Key Considerations:Factor Requires manual setup and maintenance, making it more complex for new users. Minimal setup; simple YAML-based workflows that are ready to use out of the box. Infrastructure Control Fully self-hosted; everything from updates to security patches is in your hands. Offers GitHub-hosted runners for convenience but also supports self-hosted runners for more control. Full control over servers, suitable for environments with strict compliance requirements. Self-hosted runners provide similar security, while GitHub-hosted runners are maintained by GitHub. Highly customizable with plugins and Groovy pipelines, but requires expertise to configure. Simple to customize using pre-built actions or by creating your own custom actions. Slower setup due to manual configurations and plugin management. Faster setup; optimized for GitHub-hosted repositories with minimal effort required. Choose Jenkins if:You require complete control over your CI/CD environment.Your workflows are highly complex and need extensive customization.Your organization has the infrastructure to maintain Jenkins servers and manage plugin updates.Choose GitHub Actions if:You want a quick and straightforward CI/CD solution.Your projects are hosted on GitHub, and you prefer everything in one ecosystem.You’re looking for a scalable solution without the burden of managing infrastructure. Github Actions might look cool and enticing but don’t switch to just because it looks cool. If your CI/CD pipelines are already fully set up in Jenkins, running smoothly, and your team is comfortable with the tool, there’s no strong reason to switch just for the sake of it. Based on what we’ve discussed so far, such a move may be unnecessary and could lead to additional effort without significant benefits. However, if you’re starting fresh—whether in a new company or a new project—and your code is hosted on GitHub, GitHub Actions becomes an obvious choice. It’s easy to set up, integrates natively with GitHub repositories, and provides modern features that align well with today’s DevOps workflows. For teams just getting started, GitHub Actions is undoubtedly the more convenient and efficient option. Ultimately, the need to switch depends on your specific situation. If Jenkins is working well for your team, stick with it. But if you’re looking for a simpler, GitHub-centric solution for new projects, GitHub Actions is the way to go. Yes, there are several other CI/CD tools available, each designed for different workflows and requirements. Here are four popular alternatives: Built into GitLab, this tool helps automate builds, tests, and deployments for projects hosted on GitLab. Microsoft’s CI/CD solution that integrates well with Azure services and supports multiple repositories. A cloud-based CI/CD tool known for its simplicity and support for Docker-based workflows. Atlassian’s CI/CD solution for Bitbucket repositories, tightly integrated with other Atlassian tools. It depends on your use case. Jenkins is more flexible and customizable for complex CI/CD pipelines, while GitHub Actions is easier to set up and integrates seamlessly with GitHub repositories. No, Jenkins is still widely used in production environments. However, GitHub Actions is gaining popularity due to its simplicity and native GitHub integration. Use GitHub Actions if you want: Quick setupTight GitHub integrationMinimal maintenanceIt’s ideal for small to medium projects. Jenkins is better when you need: Advanced customizationComplex pipelinesOn-premise CI/CD setup Choosing the right CI/CD tool depends entirely on your team’s requirements and project needs. Both Jenkins and GitHub Actions have unique strengths—Jenkins offers unmatched control and customization, while GitHub Actions provides simplicity and speed, especially for GitHub-hosted projects. Along with alternatives like GitLab CI/CD, Azure DevOps Pipelines, CircleCI, and Bitbucket Pipelines, there are plenty of options to fit various workflows. At Kubenine, we provide services to help you set up infrastructure, automate CI/CD pipelines, and manage cloud-native environments. Our mission is to handle these technical complexities so you can focus entirely on your product. Whether you need a Jenkins-based solution, GitHub Actions workflows, or support with other tools. Run Streamlit Reliably in Production using SupervisorFix GCP 403 Permission Errors in Compute Engine VMs

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