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Fix inline YAML in resource quota (#9906) 

Closes: #9905
pull/9918/merge
Qiming 2018-08-21 04:36:46 +08:00 committed by k8s-ci-robot
parent 1089ebbf41
commit 4050303130
1 changed files with 133 additions and 132 deletions
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265
content/en/docs/concepts/policy/resource-quotas.md
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@ -213,159 +213,160 @@ works as follows:
- Pods in the cluster have one of the three priority classes, "low", "medium", "high".
- One quota object is created for each priority.
1. Save the following YAML to a file `quota.yml`.
Save the following YAML to a file `quota.yml`.
```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"]
```
```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"]
```
2. Apply it using `kubectl create`.
Apply the YAML using `kubectl create`.
```shell
kubectl create -f ./quota.yml
```shell
kubectl create -f ./quota.yml
resourcequota/pods-high created
resourcequota/pods-medium created
resourcequota/pods-low created
```
resourcequota/pods-high created
resourcequota/pods-medium created
resourcequota/pods-low created
```
3. Verify that `Used` quota is `0` using `kubectl describe quota`.
Verify that `Used` quota is `0` using `kubectl describe quota`.
```shell
kubectl describe quota
```shell
kubectl describe quota
Name: pods-high
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 1k
memory 0 200Gi
pods 0 10
Name: pods-high
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 1k
memory 0 200Gi
pods 0 10
Name: pods-low
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 5
memory 0 10Gi
pods 0 10
Name: pods-low
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 5
memory 0 10Gi
pods 0 10
Name: pods-medium
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 10
memory 0 20Gi
pods 0 10
```
4. Create a pod with priority "high". Save the following YAML to a
file `high-priority-pod.yml`.
Name: pods-medium
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 10
memory 0 20Gi
pods 0 10
```
```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
```
Create a pod with priority "high". Save the following YAML to a
file `high-priority-pod.yml`.
Apply it with `kubectl create`.
```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
```
```shell
kubectl create -f ./high-priority-pod.yml
```
Apply it with `kubectl create`.
5. Verify that "Used" stats for "high" priority quota, `pods-high`, has changed and that
the other two quotas are unchanged.
```shell
kubectl create -f ./high-priority-pod.yml
```
```shell
kubectl describe quota
Verify that "Used" stats for "high" priority quota, `pods-high`, has changed and that
the other two quotas are unchanged.
Name: pods-high
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 500m 1k
memory 10Gi 200Gi
pods 1 10
```shell
kubectl describe quota
Name: pods-high
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 500m 1k
memory 10Gi 200Gi
pods 1 10
Name: pods-low
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 5
memory 0 10Gi
pods 0 10
Name: pods-low
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 5
memory 0 10Gi
pods 0 10
Name: pods-medium
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 10
memory 0 20Gi
pods 0 10
```
Name: pods-medium
Namespace: default
Resource Used Hard
-------- ---- ----
cpu 0 10
memory 0 20Gi
pods 0 10
```
`scopeSelector` supports the following values in the `operator` field: