CircleCI vs Jenkins vs Travis CI: What are the differences?
CircleCI – A cloud-based tool that automates the integration and deployment process. Also focusses on testing every code change before it’s deployed, using methods such as unit tests, integrations tests, and functional tests. It integrates seamlessly with the current version control system.
Jenkins – A name to reckon in the CI market. Started by Sun’s engineers, and expanded into one of the most common open source CI tools. The CI tools help engineering teams automate their deployments. Automate your build, test, and deploy tasks. The tool supports Windows, Mac OSX and various Unix systems.
Travis CI – Created for open source projects, it is focused on the CI level, focused on improving the performance of the build process with automated testing and an alert system. Users can quickly test their code with Travis keeping track of changes and advising whether the change is successful or not.
What is CircleCI?
What is Jenkins?
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What tools integrate with Jenkins?
I initially chose CircleCI for a personal project because I was not satisified with using Travis CI in the past. When it came time to develop my CI/CD config on Circle, I was pleasantly surprised with the fantastic documentation, invaluable collection of example configs and helpful support provided. The free tier they provide is quite robust for most small projects and the platform is updated frequently with nice features.
Areas where CircleCI could improve:
- the UI is a bit slow (you can feel the local machine straining to load all the code) and it is not as intuitive as it could be
- many UI elements receive updates and/or changes that are not always reflected in the current docs
We actually started out on Travis CI, but we've migrated our main builds to CircleCI, and it's been a huge improvement.
The reason it's been a huge improvement is that Travis CI has a fundamentally bad design for their images, where they start with a standard base Linux image containing tons of packages (several versions of postgres, every programming language environment, etc). This is potentially nice for the "get builds for a small project running quickly" use case, but it's a total disaster for a larger project that needs a decent number of dependencies and cares about the performance and reliability of their build.
This issue is exacerbated by their networking infrastructure being unreliable; we usually saw over 1% of builds failing due to transient networking errors in Travis CI, even after we added retries to the most frequently failing operations like
apt update or
pip install. And they never install Ubuntu's point release updates to their images. So doing an
apt install, or especially
apt upgrade would take forever. We ended up writing code to actually uninstall many of their base packages and pin the versions of hundreds of others to get a semi-fast, semi-reliable build. It was infuriating.
The CircleCI v2.0 system has the right design for a CI system: we can customize the base image to start with any expensive-to-install packages we need for our build, and we can update that image if and when we want to. The end result is that when migrating, we were able to delete all the hacky optimizations mentioned above, while still ending up with a 50% faster build latency. And we've also had 5-10x fewer issues with networking-related flakes, which means one doesn't have to constantly check whether a build failure is actually due to an issue with the code under test or "just another networking flake".
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 CircleCI as part of a cross platform mobile app to build and test the app as well as deploying .apk files to an s3 bucket.
Alongside CircleCI this repo also has a TravisCI setup for iOS. The CircleCI build has always been quicker and since moving from CircleCI v1 to CircleCI v2 it blows the TravisCI build out of the water. I'm really impressed with the performance gains from moving to v2. I'm pretty sure I could achieve similar results in Travis as well, but it was really easy to setup the Android CI build in Circle making use of Docker.
In the past we used to run Jenkins. The build server always had weird issues and was a pain to maintain. Travis is a great solution for CI. Their Debug build features makes it trivial to figure out why your build broke. The integration with Github is also very slick. One thing they could improve is the documentation on the .travis.yaml format. All in all, great company and very responsive supports. Over here at getstream.io we're a fan. Keep up the good work guys!
After trying several CI systems, we stuck with CircleCI because of the inference engine in CircleCI 1.0 made setup a breeze. We were up and running quickly. Builds are reliable, nicely integrated into GitHub, and anytime we've had a question, the support team was there to help. The 2.0 system provides Docker support and far more customization and is still fairly easy to set up with helpful documentation.
CircleCI has become our CI of choice. The UI is really good and it has all the integrations we need. The 2.0 upgrade was not yet possible for one of our projects due to outdated gems, however, I have been able to get it working for a different one.
It help us with the automated build and test and also provide us with the build artifacts which we can use for the deployment also give use archive for each of our build, this things save us alot of time and cost
We use CircleCI to deploy to server. It is much easier than other websites like Travis especially for the free tier. It is especially useful for open source projects that need private access behind the scenes.
Travis CI is our pillar for automated deployment, pull request testing, auto-merging (for non-mission-critical projects), and build testing per commit / release.
It is highly configurable, super cheap, and extremely robust (supports every language and configuration we've thrown at it).
We originally used CircleCI as our self-contained build system for our internal node modules. It was very easy to set up and configure. Unfortunately we ended up stepping away from it to Jenkins and then CodePipeline due to better integration with our various applications.
We prefer CircleCI because we care about testing our apps. We found it is better to invest the time writing rSPEC tests to ensure we don't insert any regression bugs with new branches. It's also nice to have a fully-automated deployment process from GitHub to Heroku.
All of our pull requests are automatically tested using Jenkins' integration with GitHub, and we provision and deploy our servers using Jenkins' interface. This is integrated with HipChat, immediately notifying us if anything goes wrong with a deployment.
Used for CI/CD for all proofs of concept and personal projects, because of ease of use, GitHub integrations, and free tier.
Also used for example repos hosted in GitHub, paired with Dependabot, so that example repo dependencies are kept up to date.
Jenkins is our go-to devops automation tool. We use it for automated test builds, all the way up to server updates and deploys. It really helps maintain our homegrown continuous-integration suite. It even does our blue/green deploys.
- Continuous Deploy
- Dev stage: autodeploy by trigger push request from 'develop' branch of Gitlab
- Staging and production stages: Build and rollback quicly with Ansistrano playbook
- Sending messages of job results to Chatwork.
While we usually run tests before commits, Travis goes further and tests with different Python versions and different database backends. It works great, and, best of all, it is free for open source projects.
Currently serves as the location that our QA team builds various automated testing jobs.
At one point we were using it for builds, but we ended up migrating away from them to Code Pipelines.
We use Jenkins to schedule our Browser and API Based regression and acceptance tests on a regular bases. We use additionally to Jenkins GitlabCI for unit and component testing.
Travis CI builds and tests every commit. It's also used to deploy Buildtime Trend as a Service to Heroku and the Buildtime Trend Python library to the PyPi repository.
CircleCI is used as continues integration system for shiro and all of its modules.
It automatically deploys the latest GitHub commit to https://shiro.host/.
Travis CI is critical for Linux and macOS CI tests for the Powershell module. Travis runs the same tests we run in AppVeyor in parallel.
CircleCI will be used for deployment and continuous integration using a scripted configuration that deploys to Amazon EC2.