Knapsack Pro

Buildkite vs Rancher Pipelines comparison of Continuous Integration servers
What are the differences between Buildkite and Rancher Pipelines?

Buildkite

https://buildkite.com

Rancher Pipelines

https://rancher.com/docs/rancher/v2.x/en/project-admin/tools/pipelines/
Unique feature

Runs on own infrastructure, API

DevOps tool for container orchestration

Type of product

SaaS

On Premise

Offers a free plan

Yes

Free for open source projects and selected organizations

Yes

Free, open source project

Predictable pricing

Yes

Clearly defined monthly and annual plans

Yes

It's free!

Support / SLA

Yes

Depending on the plan, ranging from community support, all the way to an assigned Technical Manager, SLAs and live chat support.

Yes

Paid support available: https://rancher.com/pricing/

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

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.

Yes

You can run multiple parallel steps within a build stage

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

Yes

Run an unlimited number of concurrent agents, and an unlimited number of concurrent jobs

N/A

Unclear from the documentation (probably not)

Containers support / Build environment

Yes

Since the agents run on your own infra, you're free to do whatever

Yes

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

The Buildkite UI features great vizualisations that feature build times, error rates, and more.

Yes

Not particularly clear, but it appears you can monitor stats in a Grafana dashboard: https://rancher.com/docs/rancher/v2.x/en/project-admin/tools/monitoring/

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

Yes

Yes

User management is available, with specific roles assigned, or permissions to certain resources and projects

Self-hosted option

No

Yes

Hosted plans / SaaS

Yes

No

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 are defined using an Yaml config file and allow for great flexibility in defining what each step of the process does.

Yes

Pipelines as code (YML files), but also manageable via the UI

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

Yes

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

Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API). Growing number of community plugins: https://buildkite.com/plugins

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

You can find useful plugins like https://github.com/sj26/rspec-buildkite https://github.com/ticky/simplecov-buildkite etc

N/A

Pipelines / CI is just a small part of Rancher. No specific support mentioned.

Specific language support: JavaScript

No

N/A

Pipelines / CI is just a small part of Rancher. No specific support mentioned.

Integrations
1st party support for common tools (like Slack notifications, various VCS platforms, etc)

Yes

Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API)

Yes

Integrations available for GitLab, GitHub and Bitbucket

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

Great GraphQL API, allows building your own dashboard with ease

Yes

REST API available. It provides introspection and documentation: https://github.com/rancher/api-spec/blob/master/specification.md#filtering. It should offer enough access to allow building whatever customizations or integrations with 3rd party tools deemed necessary.

Auditing

Yes

Yes

Allows logging to various systems (Kafka, Elastic, etc) which should make audit possible

Additional notes

Rancher is a full software stack for container orchestration, going as far as building their own Linux distribution (RancherOS). Using Rancher seems more like a decision to be made considering all other features Rancher offers, not just the CI server. Also worth noting that Rancher uses Jenkins under the hood, but the engine is locked so projects can't just be migrated between the two.

Buildkite parallel agents and how to use them for CI parallelisation

Buildkite parallelism integration

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