Min Replicas
k8s.min-replicas
Enforces minimum replica counts on HorizontalPodAutoscalers. Ensures services maintain capacity during scaling events and failures.
Compatible Integrations
This guardrail works with the following integrations. Click to see how to use Min Replicas 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/k8s@v1.0.0
include: [min-replicas]
# with: ...How This Guardrail Works
This guardrail is part of the Kubernetes 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 |
|---|---|---|---|
min_replicas
|
Optional |
3
|
Minimum replicas required for HPAs (default 3) |
max_limit_to_request_ratio
|
Optional |
4
|
Maximum ratio of limits to requests for CPU/memory (default 4) |
Kubernetes Guardrails
This guardrail is part of the Kubernetes Guardrails policy, which includes 6 guardrails for deployment and infrastructure.
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