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Jenkins vs Packer: What are the differences?
Introduction
In this article, we will discuss the key differences between Jenkins and Packer in the context of website development.
Architecture: Jenkins is a continuous integration and continuous delivery (CI/CD) tool that runs on a server and allows automating the build, test, and deployment processes. Packer, on the other hand, is an open-source tool that creates identical machine images for multiple platforms from a single source configuration. While Jenkins focuses on the CI/CD pipeline, Packer deals with creating machine images.
Functionality: Jenkins primarily focuses on automating the software development lifecycle by providing features like building, testing, and deploying applications. It integrates with various tools and plugins to perform these actions. Packer, on the other hand, specializes in building machine images that can be used across different cloud platforms or virtualization platforms. It provides a template-based approach to create machine images using various builders and provisioners.
Deployment: Jenkins provides a wide range of plugins for deploying applications to different environments or platforms like AWS, Azure, Google Cloud, etc. It can handle various types of deployments, including code deployments, container deployments, and infrastructure deployments. Packer, on the other hand, focuses on creating machine images that can be easily deployed to various platforms. It creates machine images that are ready to be used for application deployment.
Flexibility: Jenkins is a highly flexible CI/CD tool that can be customized to meet specific requirements. It supports scripting languages, allows defining custom build steps, and integrates with other tools to create a tailor-made automation pipeline. Packer, although it provides flexibility in terms of image creation, may not be as flexible in terms of the deployment process. It mainly focuses on image creation and leaves the deployment to other tools.
Community Support: Jenkins has been around for a long time and has a large community of users and contributors. It has a vast repository of plugins and documentation available, making it easier to find solutions to problems or to extend its functionality. Packer, being a relatively newer tool compared to Jenkins, may have a smaller community. However, it still has an active developer community and has gained popularity due to its simplicity and effectiveness.
Integration: Jenkins is known for its extensive integration capabilities. It can integrate with various source control systems, build tools, testing frameworks, and deployment tools. This integration allows for seamless automation of the CI/CD pipeline. Packer, on the other hand, focuses on the image creation aspect and does not offer as many integrations as Jenkins. It can be integrated with other tools through scripting or by using custom provisioners.
In summary, Jenkins is a CI/CD tool that focuses on automating the software development lifecycle, while Packer is an image creation tool that can create machine images for different platforms. Jenkins provides extensive deployment options, flexibility, and community support, while Packer specializes in creating machine images and offers simplicity and effectiveness.
We are currently using Azure Pipelines for continous integration. Our applications are developed witn .NET framework. But when we look at the online Jenkins is the most widely used tool for continous integration. Can you please give me the advice which one is best to use for my case Azure pipeline or jenkins.
If your source code is on GitHub, also take a look at Github actions. https://github.com/features/actions
I'm open to anything. just want something that break less and doesn't need me to pay for it, and can be hosted on Docker. our scripting language is powershell core. so it's better to support it. also we are building dotnet core in our pipeline, so if they have anything related that helps with the CI would be nice.
Google cloud build can help you. It is hosted on cloud and also provide reasonable free quota.
I'm planning to setup complete CD-CD setup for spark and python application which we are going to deploy in aws lambda and EMR Cluster. Which tool would be best one to choose. Since my company is trying to adopt to concourse i would like to understand what are the lack of capabilities concourse have . Thanks in advance !
I would definetly recommend Concourse to you, as it is one of the most advanced modern methods of making CI/CD while Jenkins is an old monolithic dinosaur. Concourse itself is cloudnative and containerbased which helps you to build simple, high-performance and scalable CI/CD pipelines. In my opinion, the only lack of skills you have with Concourse is your own knowledge of how to build pipelines and automate things. Technincally there is no lack, i would even say you can extend it way more easily. But as a Con it is more easy to interact with Jenkins if you are only used to UIs. Concourse needs someone which is capable of using CLIs.
From a StackShare Community member: "Currently we use Travis CI and have optimized it as much as we can so our builds are fairly quick. Our boss is all about redundancy so we are looking for another solution to fall back on in case Travis goes down and/or jacks prices way up (they were recently acquired). Could someone recommend which CI we should go with and if they have time, an explanation of how they're different?"
We use CircleCI because of the better value it provides in its plans. I'm sure we could have used Travis just as easily but we found CircleCI's pricing to be more reasonable. In the two years since we signed up, the service has improved. CircleCI is always innovating and iterating on their platform. We have been very satisfied.
As the maintainer of the Karate DSL open-source project - I found Travis CI very easy to integrate into the GitHub workflow and it has been steady sailing for more than 2 years now ! It works well for Java / Apache Maven projects and we were able to configure it to use the latest Oracle JDK as per our needs. Thanks to the Travis CI team for this service to the open-source community !
I use Google Cloud Build because it's my first foray into the CICD world(loving it so far), and I wanted to work with something GCP native to avoid giving permissions to other SaaS tools like CircleCI and Travis CI.
I really like it because it's free for the first 120 minutes, and it's one of the few CICD tools that enterprises are open to using since it's contained within GCP.
One of the unique things is that it has the Kaniko cache, which speeds up builds by creating intermediate layers within the docker image vs. pushing the full thing from the start. Helpful when you're installing just a few additional dependencies.
Feel free to checkout an example: Cloudbuild Example
I use Travis CI because of various reasons - 1. Cloud based system so no dedicated server required, and you do not need to administrate it. 2. Easy YAML configuration. 3. Supports Major Programming Languages. 4. Support of build matrix 6. Supports AWS, Azure, Docker, Heroku, Google Cloud, Github Pages, PyPi and lot more. 7. Slack Notifications.
You are probably looking at another hosted solution: Jenkins is a good tool but it way too work intensive to be used as just a backup solution.
I have good experience with Circle-CI, Codeship, Drone.io and Travis (as well as problematic experiences with all of them), but my go-to tool is Gitlab CI: simple, powerful and if you have problems with their limitations or pricing, you can always install runners somewhere and use Gitlab just for scheduling and management. Even if you don't host your git repository at Gitlab, you can have Gitlab pull changes automatically from wherever you repo lives.
If you are considering Jenkins I would recommend at least checking out Buildkite. The agents are self-hosted (like Jenkins) but the interface is hosted for you. It meshes up some of the things I like about hosted services (pipeline definitions in YAML, managed interface and authentication) with things I like about Jenkins (local customizable agent images, secrets only on own instances, custom agent level scripts, sizing instances to your needs).
Jenkins is a friend of mine. 😀
There are not much space for Jenkins competitors for now from my point of view. With declarative pipelines now in place, its super easy to maintain them and create new ones(altho I prefer scripted still). Self-hosted, free, huge community makes it the top choice so honestly for me it was an easy pick.
Within our deployment pipeline, we have a need to deploy to multiple customer environments, and manage secrets specifically in a way that integrates well with AWS, Kubernetes Secrets, Terraform and our pipelines ourselves.
Jenkins offered us the ability to choose one of a number of credentials/secrets management approaches, and models secrets as a more dynamic concept that GitHub Actions provided.
Additionally, we are operating Jenkins within our development Kubernetes cluster as a kind of system-wide orchestrator, allowing us to use Kubernetes pods as build agents, avoiding the ongoing direct costs associated with GitHub Actions minutes / per-user pricing. Obviously as a consequence we take on the indirect costs of maintain Jenkins itself, patching it, upgrading etc. However our experience with managing Jenkins via Kubernetes and declarative Jenkins configuration has led us to believe that this cost is small, particularly as the majority of actual building and testing is handled inside docker containers and Kubernetes, alleviating the need for less supported plugins that may make Jenkins administration more difficult.
Jenkins is a pretty flexible, complete tool. Especially I love the possibility to configure jobs as a code with Jenkins pipelines.
CircleCI is well suited for small projects where the main task is to run continuous integration as quickly as possible. Travis CI is recommended primarily for open-source projects that need to be tested in different environments.
And for something a bit larger I prefer to use Jenkins because it is possible to make serious system configuration thereby different plugins. In Jenkins, I can change almost anything. But if you want to start the CI chain as soon as possible, Jenkins may not be the right choice.
Pros of Jenkins
- Hosted internally523
- Free open source469
- Great to build, deploy or launch anything async318
- Tons of integrations243
- Rich set of plugins with good documentation211
- Has support for build pipelines111
- Easy setup68
- It is open-source66
- Workflow plugin53
- Configuration as code13
- Very powerful tool12
- Many Plugins11
- Continuous Integration10
- Great flexibility10
- Git and Maven integration is better9
- 100% free and open source8
- Slack Integration (plugin)7
- Github integration7
- Self-hosted GitLab Integration (plugin)6
- Easy customisation6
- Pipeline API5
- Docker support5
- Fast builds4
- Hosted Externally4
- Excellent docker integration4
- Platform idnependency4
- AWS Integration3
- JOBDSL3
- It's Everywhere3
- Customizable3
- Can be run as a Docker container3
- It`w worked3
- Loose Coupling2
- NodeJS Support2
- Build PR Branch Only2
- Easily extendable with seamless integration2
- PHP Support2
- Ruby/Rails Support2
- Universal controller2
Pros of Packer
- Cross platform builds27
- Vm creation automation9
- Bake in security4
- Good documentation1
- Easy to use1
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Cons of Jenkins
- Workarounds needed for basic requirements13
- Groovy with cumbersome syntax10
- Plugins compatibility issues8
- Lack of support7
- Limited abilities with declarative pipelines7
- No YAML syntax5
- Too tied to plugins versions4
Cons of Packer
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