CodeFresh CI vs Semaphore CI comparison of Continuous Integration servers
What are the differences between CodeFresh CI and Semaphore CI?

CodeFresh CI

https://codefresh.io

Semaphore CI

https://semaphoreci.com
Unique feature

Built for Kubernetes

Autoscaling made easy / Great CLI

Type of product

SaaS / On Premise

SaaS

Offers a free plan

Yes

Offers a minimal free plan (only one concurrent job, 3 users, various other limitations)

Yes

1,300 service minutes every month. Plans to release a free tier for open source projects.
Predictable pricing

Yes

Easy price calculator, based on the number of machines, concurrent jobs and special features.

Yes

Semaphore doesn't have traditional pricing tiers, instead it lists the types of machines you can use and their pricing per second of service. They plan to release an annual plan at some point.
Support / SLA

Yes

Paid support for enterprise plans

N/A

Not clear if they offer any real SLA on support.
Paralellism
Every CI servers tends to address this differently (parallel, distributed, build matrix). Some of it is just marketing, and some is just nuance. For this table, parallel means that tasks can be run concurrently on the same machine, distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in optimal way with Knapsack Pro

Yes

Yes

Allows defining a custom build matrix such that your build can be parallelized accross several different environments.
Distributed builds
distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in optimal way with Knapsack Pro

N/A

Unclear from the documentation (probably not)

N/A

Containers support / Build environment

Yes

Built for Kubernetes, so containers are a must.

Yes

Allows running builds inside docker containers
Analytics / Status overview
Analytics and overview referrs to the ability to, at a glance, see what's breaking (be it a certain task, or the build for a specific project)

Yes

They seem to provide pretty great status overview, depending on the type of plan you're using.

Yes

Management support
How easy is it to manage users / projects / assign roles and permissions and so on

Yes

Yes

Self-hosted option

Yes

Only available for enterprise plans

No

Hosted plans / SaaS

Yes

Yes

Build pipelines
A continuous delivery pipeline is a description of the process that the software goes through from a new code commit, through testing and other statical analysis steps all the way to the end-users of the product.

Yes

Pipelines as code (YML files)

Yes

Allows defining complex build workflows with ease
Reports
Reports are about the abilty to see specific reports (like code coverage or custom ones), but not necesarily tied in into a larger dashboard.

Yes

N/A

Ecosystem
Besides the official documentation and software, is there a large community using this product? Are there any community-driven tools / plugins that you can use?

Yes

Every step in a CodeFresh pipeline is a Docker image. A wide array of steps is available over at https://steps.codefresh.io/

N/A

Specific language support: Ruby
Some CI servers have built-in support for parsing RSpec or Istanbul output for example and we mention those. Some others make it even easier by detecting Gemfiles or package.json and automate parts of the process for the developer.

Yes

Specific documentation for a sample Ruby-on-Rails project: https://codefresh.io/docs/docs/learn-by-example/ruby/

Yes

Provides rich documentation on integrating Semaphore CI in Ruby projects. Also provides sudo access if you need to install system dependencies or C extensions.
Specific language support: JavaScript

Yes

There's an 'npm publish' step available, and they also provide a few Javascript examples over at https://codefresh.io/docs/docs/learn-by-example/nodejs/ (one is just a sample, one is a little more complex, using Redis, Python, etc., and one is a React App)

Yes

Provides rich documentation on integrating Semaphore CI in Javascript projects
Integrations
1st party support for common tools (like Slack notifications, various VCS platforms, etc)

Yes

https://steps.codefresh.io

Yes

Integration with GitHub and Slack. They allow building iOS projects via their macOS Mojave VM image.
API
Custom integreation is available, via an API or otherwise, it's mentioned separately as it allows further customization than any of the Ecosystem/Integration options

Yes

Rich REST API available, well documented at https://g.codefresh.io/api/

No

Auditing

Yes

Audit logs available: https://codefresh.io/docs/docs/enterprise/audit-logs/

Yes

Additional notes

List of features is based on Semaphore 2.0

How to run parallel tests on CodeFresh CI and Semaphore CI
to execute 1-hour test suite in 2 minutes?

How it works

1. Install Knapsack Pro client in your project


2. Add Knapsack Pro client to your current CI server and run your tests in parallel



3. Update your CI server config file to run tests in parallel with Knapsack Pro

Knapsack Pro in Queue Mode will split tests in a dynamic way across parallel CI nodes to ensure each CI node finish work at a similar time. Thanks to that your CI build time is as fast as possible. It works with many supported CI servers.

Do you know

Start using Knapsack Pro

Sign up and speed up your tests.

Get faster feedback from CodeFresh CI and Semaphore CI server

  • save time & money
  • deliver features faster
  • catch errors earlier

Running Rails tests in parallel on Semaphore CI 2.0 with dynamic test files split

Semaphore CI parallelism integration

Introduction to CI parallelisation with Knapsack Pro

Run tests in parallel on CodeFresh CI and Semaphore CI in optimal way and avoid bottleneck parallel jobs.

How much can you save with faster tests
on CodeFresh CI and Semaphore CI?

minutes
$

Monthly you can save hours
and up to $
on faster development cycle.

Features that make your tests perform better

  • Queue mode see video

    Dynamic tests allocation across CodeFresh CI and Semaphore CI parallel jobs. Autobalance tests to get optimal test suite split betweeen CI nodes.

  • Regular mode see video

    Test suite split based on time execution. Generates subset of test suite per CI node before running tests.

  • Fallback mode

    Network issues? Not a problem, run tests anyway! Auto switch to the fallback mode to not depend on Knapsack Pro API.

  • All supported test runners

    Ruby: RSpec, Minitest, Test::Unit, Cucumber, Spinach, Turnip.

    JavaScript: Cypress.io, Jest

    Do you use different programming language or test runner? Let us know in the poll

Discover all features or see
how to use Knapsack Pro with your CI

Trusted solution

Join the teams optimizing their tests with Knapsack Pro.

We've been really enjoying Knapsack Pro, it's been saving us a ton of time.

Devin Brown Software Engineer at Pivotal

This is a fantastic product, it's been a total game-changer for us.

Geoff Harcourt CTO at CommonLit

We are using CircleCI and we noticed that builds were being limited by the slowest parallelized container. Knapsack Pro was really east to setup and we saw huge improvements right away. Thank you for making this tool!

Martin Sieniawski Software Engineer at Collage

Knapsack Pro has helped us build an insanely fast and scaleable build pipeline with almost no setup or maintenance.

Tim Lucas Co-founder of buildkite.com

Knapsack Pro saves us hours of engineer waiting time every week, and is the best solution for keeping our tests load balanced that we've used to date.

Michael Amygdalidis Senior Software Engineer at Popular Pays

I just logged into my account expecting it to say that I needed to add a credit card and was so surprised and delighted to see the trial doesn't count usage by calendar days but by testing days! This is incredible! I love it!!!

I just wanted to say that I really appreciate that small but very huge feature. Thank you for being so thoughtful :)

Shannon Baffoni Senior Software Engineer
at Blue Bottle Coffee

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