Default Resource Unit
Default Resource Limit
Lower Limit
1 CPU as in Cloud Services
| Service | Unit |
|---|
| AWS | 1 AWS vCPU |
| Google | 1 GCP Core |
| Azure | 1 Azure Core / 1 Hyperthread |
G vs Gi / M vs Mi / K vs Ki
| Unit | Description | Value |
|---|
| 1 G | Gigabyte | 1,000,000,000 bytes |
| 1 Gi | Gibibyte | 1,073,741,824 bytes |
| | |
| 1 M | Megabyte | 1,000,000 bytes |
| 1 Mi | Mebibyte | 1,048,576 bytes |
| | |
| 1 K | Kilobyte | 1,000 bytes |
| 1 Ki | Kibibyte | 1,024 bytes |
PODSpec
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| apiVersion: v1
kind: Pod
metadata:
name: myapp-pod
labels:
app: my-app
spec:
containers:
- name: nginx-container
image: nginx
ports:
- containerPort: 8080
resources:
requests:
memory: "1Gi"
cpu: 1
limits:
memory: "2Gi"
cpu: 2
|
Exceed Limits
| Unit | Action |
|---|
| CPU | The POD cannot use more CPU over the limit. |
| MEM | The POD can use more memory over the limit, but it’s terminated when the usage is over the Physical limit. |
The resources are not enough in the cluster
The PODs are in the Pending status.
configure memory default resource of container
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| apiVersion: v1
kind: LimitRange
metadata:
name: mem-limit-range
spec:
limits:
- default:
memory: 512Mi
defaultRequest:
memory: 256Mi
type: Container
|
configure cpu default resource of container
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| apiVersion: v1
kind: LimitRange
metadata:
name: cpu-limit-range
spec:
limits:
- default:
cpu: 1
defaultRequest:
cpu: 0.5
type: Container
|
References
CozyFex