CPU requests not set

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Metadata

Id: ca469dd4-c736-448f-8ac1-30a642705e0a

Cloud Provider: Kubernetes

Platform: Kubernetes

Severity: Low

Category: Resource Management

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Description

CPU requests should be set to ensure the total resource requests of scheduled containers are less than the node’s capacity. This rule checks both initContainers and containers for the presence of a resources field, a resources.requests map, and a cpu entry within requests. It reports a MissingAttribute issue when any container is missing resources, missing requests, or missing CPU requests to help enforce proper schedulability and capacity planning.

Compliant Code Examples

apiVersion: v1
kind: Pod
metadata:
  name: frontend
spec:
  containers:
    - name: app
      image: images.my-company.example/app:v4
      resources:
        requests:
          memory: "64Mi"
          cpu: "250m"
        limits:
          memory: "128Mi"
          cpu: "500m"
    - name: log-aggregator
      image: images.my-company.example/log-aggregator:v6
      resources:
        requests:
          memory: "64Mi"
          cpu: "250m"
        limits:
          memory: "128Mi"
          cpu: "500m"
---
apiVersion: serving.knative.dev/v1
kind: Configuration
metadata:
  name: dummy-config
  namespace: knative-sequence
spec:
  template:
    spec:
      containers:
        - name: app
          image: images.my-company.example/app:v4
          resources:
            requests:
              memory: "64Mi"
              cpu: "250m"
            limits:
              memory: "128Mi"
              cpu: "500m"
        - name: log-aggregator
          image: images.my-company.example/log-aggregator:v6
          resources:
            requests:
              memory: "64Mi"
              cpu: "250m"
            limits:
              memory: "128Mi"
              cpu: "500m"

Non-Compliant Code Examples

apiVersion: v1
kind: Pod
metadata:
  name: frontend
spec:
  containers:
    - name: app
      image: images.my-company.example/app:v4
      resources:
        requests:
          memory: "64Mi"
        limits:
          memory: "128Mi"
          cpu: "500m"
    - name: log-aggregator
      image: images.my-company.example/log-aggregator:v6
      resources:
        limits:
          memory: "128Mi"
          cpu: "500m"
---
apiVersion: serving.knative.dev/v1
kind: Configuration
metadata:
  name: dummy-config
  namespace: knative-sequence
spec:
  template:
    spec:
      containers:
        - name: app
          image: images.my-company.example/app:v4
          resources:
            requests:
              memory: "64Mi"
            limits:
              memory: "128Mi"
              cpu: "500m"
        - name: log-aggregator
          image: images.my-company.example/log-aggregator:v6
          resources:
            limits:
              memory: "128Mi"
              cpu: "500m"