Limit ranges for defaults in Kubernetes - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the YAML to define a LimitRange with default CPU and memory limits.

Kubernetes

apiVersion: v1
kind: LimitRange
metadata:
  name: limits
spec:
  limits:
  - type: Container
    default:
      cpu: [1]
      memory: 512Mi

Drag options to blanks, or click blank then click option'

A500m

B1Gi

C100m

D256Mi

Attempts:

3 left

💡 Hint

Common Mistakes

Using memory units for CPU value

Omitting the 'm' suffix for CPU

The cpu default limit is set using millicores, so 100m means 0.1 CPU.

2fill in blank

medium

Complete the YAML to set default request values for CPU and memory in a LimitRange.

Kubernetes

apiVersion: v1
kind: LimitRange
metadata:
  name: limits
spec:
  limits:
  - type: Container
    defaultRequest:
      cpu: [1]
      memory: 256Mi

Drag options to blanks, or click blank then click option'

A200m

B1Gi

C100m

D512Mi

Attempts:

3 left

💡 Hint

Common Mistakes

Using memory units for CPU request

Setting request higher than limit

The defaultRequest for CPU is typically set in millicores, here 200m means 0.2 CPU.

3fill in blank

hard

Fix the error in the LimitRange YAML by completing the missing field for default CPU limit.

Kubernetes

apiVersion: v1
kind: LimitRange
metadata:
  name: limits
spec:
  limits:
  - type: Container
    default:
      cpu: [1]
      memory: 1Gi

Drag options to blanks, or click blank then click option'

A1000m

B1m

C1Gi

D100m

Attempts:

3 left

💡 Hint

Common Mistakes

Using memory units for CPU

Using too large or invalid CPU values

The CPU limit should be in millicores. 100m means 0.1 CPU, which is valid. 1Gi is a memory unit and invalid for CPU.

4fill in blank

hard

Fill both blanks to set default and defaultRequest memory limits in the LimitRange YAML.

Kubernetes

apiVersion: v1
kind: LimitRange
metadata:
  name: limits
spec:
  limits:
  - type: Container
    default:
      memory: [1]
    defaultRequest:
      memory: [2]

Drag options to blanks, or click blank then click option'

A512Mi

B256Mi

C1Gi

D128Mi

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping default and defaultRequest values

Using CPU units for memory

The default memory limit is usually higher than the defaultRequest. Here, 512Mi is the default limit and 256Mi is the default request.

5fill in blank

hard

Fill all three blanks to complete the LimitRange YAML with default CPU, defaultRequest CPU, and defaultRequest memory.

Kubernetes

apiVersion: v1
kind: LimitRange
metadata:
  name: limits
spec:
  limits:
  - type: Container
    default:
      cpu: [1]
    defaultRequest:
      cpu: [2]
      memory: [3]

Drag options to blanks, or click blank then click option'

A100m

B200m

C256Mi

D512Mi

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing CPU and memory units

Setting requests higher than limits

The default CPU limit is 100m, defaultRequest CPU is 200m, and defaultRequest memory is 256Mi. Requests are usually less than or equal to limits.