prerelease-version

Code	prerelease-version
Severity	info
Category	Best Practice

What it means

A version constraint references a pre-release version -- one that includes a suffix like -alpha, -beta, -rc, -dev, or -pre.

Why it matters

Pre-release versions are explicitly marked as unstable by their authors. APIs may change, bugs are expected, and there is no guarantee of forward compatibility. Using pre-release versions in production infrastructure increases the risk of unexpected behavior.

This finding is reported at info severity because there are legitimate reasons to use pre-release versions in non-production environments (e.g., testing upcoming features).

Example

This HCL triggers the finding:

module "k8s" {
  source  = "terraform-aws-modules/eks/aws"
  version = "20.0.0-beta1"
}

MonPhare output:

INFO [prerelease-version] 'k8s' uses pre-release version
  --> main.tf:1
  Suggestion: Consider using a stable release version

How to fix

Switch to the latest stable release:

module "k8s" {
  source  = "terraform-aws-modules/eks/aws"
  version = "~> 20.0"
}

If you need to use a pre-release version intentionally, you can disable this check:

# monphare.yaml
analysis:
  check_prerelease: false