Merge pull request #49402 from windsonsea/quotae
Fix consistency issues and use code_sample for resource-quotaspull/49429/head
commit
33dc1b0d8d
|
@ -36,7 +36,7 @@ Resource quotas work like this:
|
||||||
- If creating or updating a resource violates a quota constraint, the request will fail with HTTP
|
- If creating or updating a resource violates a quota constraint, the request will fail with HTTP
|
||||||
status code `403 FORBIDDEN` with a message explaining the constraint that would have been violated.
|
status code `403 FORBIDDEN` with a message explaining the constraint that would have been violated.
|
||||||
|
|
||||||
- If quota is enabled in a namespace for compute resources like `cpu` and `memory`, users must specify
|
- If quotas are enabled in a namespace for compute resources like `cpu` and `memory`, users must specify
|
||||||
requests or limits for those values; otherwise, the quota system may reject pod creation. Hint: Use
|
requests or limits for those values; otherwise, the quota system may reject pod creation. Hint: Use
|
||||||
the `LimitRanger` admission controller to force defaults for pods that make no compute resource requirements.
|
the `LimitRanger` admission controller to force defaults for pods that make no compute resource requirements.
|
||||||
|
|
||||||
|
@ -222,8 +222,8 @@ Resources specified on the quota outside of the allowed set results in a validat
|
||||||
|
|
||||||
| Scope | Description |
|
| Scope | Description |
|
||||||
| ----- | ----------- |
|
| ----- | ----------- |
|
||||||
| `Terminating` | Match pods where `.spec.activeDeadlineSeconds >= 0` |
|
| `Terminating` | Match pods where `.spec.activeDeadlineSeconds` >= `0` |
|
||||||
| `NotTerminating` | Match pods where `.spec.activeDeadlineSeconds is nil` |
|
| `NotTerminating` | Match pods where `.spec.activeDeadlineSeconds` is `nil` |
|
||||||
| `BestEffort` | Match pods that have best effort quality of service. |
|
| `BestEffort` | Match pods that have best effort quality of service. |
|
||||||
| `NotBestEffort` | Match pods that do not have best effort quality of service. |
|
| `NotBestEffort` | Match pods that do not have best effort quality of service. |
|
||||||
| `PriorityClass` | Match pods that references the specified [priority class](/docs/concepts/scheduling-eviction/pod-priority-preemption). |
|
| `PriorityClass` | Match pods that references the specified [priority class](/docs/concepts/scheduling-eviction/pod-priority-preemption). |
|
||||||
|
@ -308,60 +308,14 @@ works as follows:
|
||||||
- Pods in the cluster have one of the three priority classes, "low", "medium", "high".
|
- Pods in the cluster have one of the three priority classes, "low", "medium", "high".
|
||||||
- One quota object is created for each priority.
|
- One quota object is created for each priority.
|
||||||
|
|
||||||
Save the following YAML to a file `quota.yml`.
|
Save the following YAML to a file `quota.yaml`.
|
||||||
|
|
||||||
```yaml
|
{{% code_sample file="policy/quota.yaml" %}}
|
||||||
apiVersion: v1
|
|
||||||
kind: List
|
|
||||||
items:
|
|
||||||
- apiVersion: v1
|
|
||||||
kind: ResourceQuota
|
|
||||||
metadata:
|
|
||||||
name: pods-high
|
|
||||||
spec:
|
|
||||||
hard:
|
|
||||||
cpu: "1000"
|
|
||||||
memory: 200Gi
|
|
||||||
pods: "10"
|
|
||||||
scopeSelector:
|
|
||||||
matchExpressions:
|
|
||||||
- operator : In
|
|
||||||
scopeName: PriorityClass
|
|
||||||
values: ["high"]
|
|
||||||
- apiVersion: v1
|
|
||||||
kind: ResourceQuota
|
|
||||||
metadata:
|
|
||||||
name: pods-medium
|
|
||||||
spec:
|
|
||||||
hard:
|
|
||||||
cpu: "10"
|
|
||||||
memory: 20Gi
|
|
||||||
pods: "10"
|
|
||||||
scopeSelector:
|
|
||||||
matchExpressions:
|
|
||||||
- operator : In
|
|
||||||
scopeName: PriorityClass
|
|
||||||
values: ["medium"]
|
|
||||||
- apiVersion: v1
|
|
||||||
kind: ResourceQuota
|
|
||||||
metadata:
|
|
||||||
name: pods-low
|
|
||||||
spec:
|
|
||||||
hard:
|
|
||||||
cpu: "5"
|
|
||||||
memory: 10Gi
|
|
||||||
pods: "10"
|
|
||||||
scopeSelector:
|
|
||||||
matchExpressions:
|
|
||||||
- operator : In
|
|
||||||
scopeName: PriorityClass
|
|
||||||
values: ["low"]
|
|
||||||
```
|
|
||||||
|
|
||||||
Apply the YAML using `kubectl create`.
|
Apply the YAML using `kubectl create`.
|
||||||
|
|
||||||
```shell
|
```shell
|
||||||
kubectl create -f ./quota.yml
|
kubectl create -f ./quota.yaml
|
||||||
```
|
```
|
||||||
|
|
||||||
```
|
```
|
||||||
|
@ -405,33 +359,14 @@ pods 0 10
|
||||||
```
|
```
|
||||||
|
|
||||||
Create a pod with priority "high". Save the following YAML to a
|
Create a pod with priority "high". Save the following YAML to a
|
||||||
file `high-priority-pod.yml`.
|
file `high-priority-pod.yaml`.
|
||||||
|
|
||||||
```yaml
|
{{% code_sample file="policy/high-priority-pod.yaml" %}}
|
||||||
apiVersion: v1
|
|
||||||
kind: Pod
|
|
||||||
metadata:
|
|
||||||
name: high-priority
|
|
||||||
spec:
|
|
||||||
containers:
|
|
||||||
- name: high-priority
|
|
||||||
image: ubuntu
|
|
||||||
command: ["/bin/sh"]
|
|
||||||
args: ["-c", "while true; do echo hello; sleep 10;done"]
|
|
||||||
resources:
|
|
||||||
requests:
|
|
||||||
memory: "10Gi"
|
|
||||||
cpu: "500m"
|
|
||||||
limits:
|
|
||||||
memory: "10Gi"
|
|
||||||
cpu: "500m"
|
|
||||||
priorityClassName: high
|
|
||||||
```
|
|
||||||
|
|
||||||
Apply it with `kubectl create`.
|
Apply it with `kubectl create`.
|
||||||
|
|
||||||
```shell
|
```shell
|
||||||
kubectl create -f ./high-priority-pod.yml
|
kubectl create -f ./high-priority-pod.yaml
|
||||||
```
|
```
|
||||||
|
|
||||||
Verify that "Used" stats for "high" priority quota, `pods-high`, has changed and that
|
Verify that "Used" stats for "high" priority quota, `pods-high`, has changed and that
|
||||||
|
@ -550,9 +485,9 @@ metadata:
|
||||||
spec:
|
spec:
|
||||||
hard:
|
hard:
|
||||||
requests.cpu: "1"
|
requests.cpu: "1"
|
||||||
requests.memory: 1Gi
|
requests.memory: "1Gi"
|
||||||
limits.cpu: "2"
|
limits.cpu: "2"
|
||||||
limits.memory: 2Gi
|
limits.memory: "2Gi"
|
||||||
requests.nvidia.com/gpu: 4
|
requests.nvidia.com/gpu: 4
|
||||||
EOF
|
EOF
|
||||||
```
|
```
|
||||||
|
|
|
@ -0,0 +1,18 @@
|
||||||
|
apiVersion: v1
|
||||||
|
kind: Pod
|
||||||
|
metadata:
|
||||||
|
name: high-priority
|
||||||
|
spec:
|
||||||
|
containers:
|
||||||
|
- name: high-priority
|
||||||
|
image: ubuntu
|
||||||
|
command: ["/bin/sh"]
|
||||||
|
args: ["-c", "while true; do echo hello; sleep 10;done"]
|
||||||
|
resources:
|
||||||
|
requests:
|
||||||
|
memory: "10Gi"
|
||||||
|
cpu: "500m"
|
||||||
|
limits:
|
||||||
|
memory: "10Gi"
|
||||||
|
cpu: "500m"
|
||||||
|
priorityClassName: high
|
|
@ -0,0 +1,45 @@
|
||||||
|
apiVersion: v1
|
||||||
|
kind: List
|
||||||
|
items:
|
||||||
|
- apiVersion: v1
|
||||||
|
kind: ResourceQuota
|
||||||
|
metadata:
|
||||||
|
name: pods-high
|
||||||
|
spec:
|
||||||
|
hard:
|
||||||
|
cpu: "1000"
|
||||||
|
memory: "200Gi"
|
||||||
|
pods: "10"
|
||||||
|
scopeSelector:
|
||||||
|
matchExpressions:
|
||||||
|
- operator: In
|
||||||
|
scopeName: PriorityClass
|
||||||
|
values: ["high"]
|
||||||
|
- apiVersion: v1
|
||||||
|
kind: ResourceQuota
|
||||||
|
metadata:
|
||||||
|
name: pods-medium
|
||||||
|
spec:
|
||||||
|
hard:
|
||||||
|
cpu: "10"
|
||||||
|
memory: "20Gi"
|
||||||
|
pods: "10"
|
||||||
|
scopeSelector:
|
||||||
|
matchExpressions:
|
||||||
|
- operator: In
|
||||||
|
scopeName: PriorityClass
|
||||||
|
values: ["medium"]
|
||||||
|
- apiVersion: v1
|
||||||
|
kind: ResourceQuota
|
||||||
|
metadata:
|
||||||
|
name: pods-low
|
||||||
|
spec:
|
||||||
|
hard:
|
||||||
|
cpu: "5"
|
||||||
|
memory: "10Gi"
|
||||||
|
pods: "10"
|
||||||
|
scopeSelector:
|
||||||
|
matchExpressions:
|
||||||
|
- operator: In
|
||||||
|
scopeName: PriorityClass
|
||||||
|
values: ["low"]
|
Loading…
Reference in New Issue