Min Ruby Version
ruby.min-ruby-version
Ensures the project uses at least the minimum required Ruby version. Helps maintain security and compatibility standards.
Compatible Integrations
This guardrail works with the following integrations. Click to see how to use Min Ruby Version with each collector.
Enable This Guardrail
Add the parent policy to your lunar-config.yml to enable this guardrail.
policies:
- uses: github://earthly/lunar-lib/policies/ruby@v1.0.5
include: [min-ruby-version]
# with: ...How This Guardrail Works
This guardrail is part of the Ruby Project Guardrails policy. It evaluates data collected by integrations and produces a pass/fail check with actionable feedback.
When enabled, this check runs automatically on every PR and in AI coding workflows, providing real-time enforcement of your engineering standards.
Learn How Lunar Works →Configuration Options
These inputs can be configured in your lunar-config.yml to customize
how the parent policy (and this guardrail) behaves.
| Input | Required | Default | Description |
|---|---|---|---|
max_audit_vulnerabilities
|
Optional |
0
|
Maximum allowed known vulnerabilities from bundler-audit (0 = must be clean) |
min_ruby_version
|
Optional |
3.0
|
Minimum required Ruby version (e.g., "3.0", "3.2") |
min_ruby_version_cicd
|
Optional |
3.0
|
Minimum required Ruby version for CI/CD commands |
min_bundler_version_cicd
|
Optional |
2.4
|
Minimum required Bundler version for CI/CD commands |
min_rake_version_cicd
|
Optional |
13.0
|
Minimum required Rake version for CI/CD commands |
Ruby Project Guardrails
This guardrail is part of the Ruby Project Guardrails policy, which includes 8 guardrails for devex build and ci.
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