Example Ruby Pipeline
Updated 2 years ago
by
Admin
This guide covers configuring continuous integration pipelines for Ruby projects. If you’re new to Drone please read our Tutorial and build configuration guides first.
Build and Test
In the below example we demonstrate a pipeline that executes bundle install and rake commands. These commands are executed inside the ruby Docker container, downloaded at runtime from DockerHub.
kind: pipeline
name: default
steps:
- name: test
image: ruby
commands:
- bundle install --jobs=3 --retry=3
- rake
Please note that you can use any Docker image in your pipeline from any Docker registry. You can use the official ruby images, or you can bring your own.
Dependencies
If you decide to split your pipeline into multiple steps you need to make sure each step has access to project dependencies. Dependencies are downloaded to /usr/local/bundle which is outside of the shared workspace. Create a named volume to share this directory with all pipeline steps:
kind: pipeline
name: default
steps:
- name: install
image: ruby
volumes:
- name: bundle
path: /usr/local/bundle
commands:
- bundle install --jobs=3 --retry=3
- name: test
image: ruby
volumes:
- name: bundle
path: /usr/local/bundle
commands:
- rake
volumes:
- name: bundle
temp: {}
Test Multiple Versions
You can use Drone’s multi-pipeline feature to concurrently test against multiple versions of Ruby. This is equivalent to matrix capabilities found in other continuous integration systems.
---
kind: pipeline
name: ruby-2-4
steps:
- name: test
image: ruby:2.4
commands:
- bundle install --jobs=3 --retry=3
- rake
---
kind: pipeline
name: ruby-2-3
steps:
- name: test
image: ruby:2.3
commands:
- bundle install --jobs=3 --retry=3
- rake
...
If you find this syntax too verbose we recommend using jsonnet. If you are unfamiliar with jsonnet please read our guide.
local Pipeline(name, image) = {
kind: "pipeline",
name: name,
steps: [
{
name: "test",
image: image,
commands: [
"bundle install --jobs=3 --retry=3",
"rake"
]
}
]
};
[
Pipeline("ruby23", "ruby:2.3"),
Pipeline("ruby24", "ruby:2.4"),
]Test Multiple Architectures
You can use Drone’s multi-pipeline feature to concurrently test your code on multiple architectures and operating systems.
---
kind: pipeline
name: test-on-amd64
platform:
arch: amd64
steps:
- name: test
image: ruby
commands:
- bundle install --jobs=3 --retry=3
- rake
---
kind: pipeline
name: test-on-arm64
platform:
arch: arm64
steps:
- name: test
image: ruby
commands:
- bundle install --jobs=3 --retry=3
- rake
...
If you find this syntax too verbose we recommend using jsonnet. If you are unfamiliar with jsonnet please read our guide.
