CPU Requests Not Set

• Query id: ca469dd4-c736-448f-8ac1-30a642705e0a
• Query name: CPU Requests Not Set
• Platform: Kubernetes
• Severity: Medium
• Category: Resource Management
• URL: Github

Description

CPU requests should be set to ensure the sum of the resource requests of the scheduled Containers is less than the capacity of the node
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - yaml file

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"

Code samples without security vulnerabilities

Negative test num. 1 - yaml file

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"