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ECR Repository Missing Lifecycle Policy Affecting ECR service in AWS

Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Data / Lifecycle

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  • Snyk ID SNYK-CC-00755
  • credit Snyk Research Team
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Description

Enabling a lifecycle policy on an ECR repository ensures that images are managed efficiently by defining rules to clean up unused images, which reduces the risk of reaching storage limits and helps in cost management. Without a lifecycle policy, there is no automated way to manage the retention of images, which can lead to storage bloat, increased costs, and potential exposure of old and possibly vulnerable images.

How to fix?

Set repository attribute in aws_ecr_lifecycle_policy resource to a valid aws_ecr_repository name.

Example Configuration


resource "aws_ecr_repository" "allow1" {
  name = "snyk-repository1"
}

resource "aws_ecr_lifecycle_policy" "allow1_policy" {
  repository = aws_ecr_repository.allow1.name

  policy = <<EOF
{
    "rules": [
        {
            "rulePriority": 1,
            "description": "Expire images older than 14 days",
            "selection": {
                "tagStatus": "untagged",
                "countType": "sinceImagePushed",
                "countUnit": "days",
                "countNumber": 14
            },
            "action": {
                "type": "expire"
            }
        }
    ]
}
EOF
}