GKE Node pool does not use a container-optimized OS Affecting Kubernetes (Container) Engine service in Google
Severity Framework
CCSS (Common Configuration Scoring System) is a set of measures used to determine the severity of the rule.
Snyk CCSS
Rule category
Each rule is associated with a high-level category. For example IAM, Container, Monitoring, Logging, Network, etc.
Containers/ APIs
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CIS-Controls
- Snyk IDSNYK-CC-00411
- creditSnyk Research Team
Description
Container-Optimized OS is a secure and speedy operating system image for Compute Engine VMs. Optimize your GKE cluster nodes' security by running them on Container-Optimized OS images.
How to fix?
Set node_config.image_type attribute to a COS based image, or remove attribute.
Example configuration
resource "google_service_account" "default" {
account_id = "service-account-id"
display_name = "Service Account"
}
resource "google_container_cluster" "allowed" {
name = "gke-cluster-411-b1"
location = "us-east1-b"
initial_node_count = 1
}
resource "google_container_node_pool" "primary_preemptible_nodes_b" {
name = "node-pool-411b1"
cluster = google_container_cluster.allowed.id
node_count = 1
node_config {
preemptible = true
machine_type = "e2-medium"
image_type = "COS_CONTAINERD"
service_account = google_service_account.default.email
oauth_scopes = [
"https://www.googleapis.com/auth/cloud-platform"
]
}
}