Semaphore CIhttps://semaphoreci.com |
Buildkitehttps://buildkite.com |
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Unique feature |
Autoscaling made easy / Great CLI
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Runs on own infrastructure, API
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Type of product |
SaaS
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SaaS
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Offers a free plan |
Yes 1,300 service minutes every month. Plans to release a free tier for open source projects. |
Yes Free for open source projects and selected organizations |
Predictable pricing |
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. |
Yes Clearly defined monthly and annual plans |
Support / SLA |
N/A Not clear if they offer any real SLA on support. |
Yes Depending on the plan, ranging from community support, all the way to an assigned Technical Manager, SLAs and live chat 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 the optimal way with Knapsack Pro |
Yes Allows defining a custom build matrix such that your build can be parallelized accross several different environments. |
Yes Run an unlimited number of concurrent agents, and an unlimited number of concurrent jobs. You can run your tests in isolated Docker container per agent. |
Distributed builds
distributed means that tasks can be scaled horizontally, on multiple machines How to split tests in parallel in the optimal way with Knapsack Pro |
N/A
|
Yes Run an unlimited number of concurrent agents, and an unlimited number of concurrent jobs |
Containers support / Build environment |
Yes Allows running builds inside docker containers |
Yes Since the agents run on your own infra, you're free to do whatever |
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
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Yes The Buildkite UI features great vizualisations that feature build times, error rates, and more. |
Management support
How easy is it to manage users / projects / assign roles and permissions and so on |
Yes
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Yes
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Self-hosted option |
No
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No
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Hosted plans / SaaS |
Yes
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Yes
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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 Allows defining complex build workflows with ease |
Yes Pipelines are defined using an Yaml config file and allow for great flexibility in defining what each step of the process does. |
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. |
N/A
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Yes
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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? |
N/A
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Yes Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API). Growing number of community plugins: https://buildkite.com/plugins |
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 Provides rich documentation on integrating Semaphore CI in Ruby projects. Also provides sudo access if you need to install system dependencies or C extensions. |
Yes You can find useful plugins like https://github.com/sj26/rspec-buildkite https://github.com/ticky/simplecov-buildkite etc |
Specific language support: JavaScript |
Yes Provides rich documentation on integrating Semaphore CI in Javascript projects |
No
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Integrations
1st party support for common tools (like Slack notifications, various VCS platforms, etc) |
Yes Integration with GitHub and Slack. They allow building iOS projects via their macOS Mojave VM image. |
Yes Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API) |
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 |
No
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Yes Great GraphQL API, allows building your own dashboard with ease |
Auditing |
Yes
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Yes
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Additional notes |
List of features is based on Semaphore 2.0 |
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