14.2. 配额
资源配额 由 ResourceQuota 对象定义，提供约束来限制各个项目的聚合资源消耗。它可根据类型限制项目中创建的对象数量，以及该项目中资源可以消耗的计算资源和存储的总和。
注意
配额由集群管理员设置，并可限定到给定项目。
14.2.1. 查看配额
您可以在 Web 控制台导航到项目的 Quota 页面，查看与项目配额中定义的硬限值相关的使用量统计。
您还可以使用 CLI 查看配额详情：
首先，获取项目中定义的配额列表。例如，对于名为 demoproject 的项目：
$ oc get quota -n demoproject NAME AGE besteffort 11m compute-resources 2m core-object-counts 29m
然后，描述您需要的配额，如 core-object-counts 配额：
$ oc describe quota core-object-counts -n demoproject Name: core-object-counts Namespace: demoproject Resource Used Hard -------- ---- ---- configmaps 3 10 persistentvolumeclaims 0 4 replicationcontrollers 3 20 secrets 9 10 services 2 10
可以通过在对象上运行 oc get --export 来查看完整的配额定义。以下显示了一些配额定义示例：
core-object-counts.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: core-object-counts
spec:
hard:
configmaps: "10" 1
persistentvolumeclaims: "4" 2
replicationcontrollers: "20" 3
secrets: "10" 4
services: "10" 5
openshift-object-counts.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: openshift-object-counts
spec:
hard:
openshift.io/imagestreams: "10" 1
- 1
- 项目中可以存在的镜像流的总数。
compute-resources.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: compute-resources
spec:
hard:
pods: "4" 1
requests.cpu: "1" 2
requests.memory: 1Gi 3
requests.ephemeral-storage: 2Gi 4
limits.cpu: "2" 5
limits.memory: 2Gi 6
limits.ephemeral-storage: 4Gi 7
besteffort.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: besteffort
spec:
hard:
pods: "1" 1
scopes:
- BestEffort 2
compute-resources-long-running.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: compute-resources-long-running
spec:
hard:
pods: "4" 1
limits.cpu: "4" 2
limits.memory: "2Gi" 3
limits.ephemeral-storage: "4Gi" 4
scopes:
- NotTerminating 5
compute-resources-time-bound.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: compute-resources-time-bound
spec:
hard:
pods: "2" 1
limits.cpu: "1" 2
limits.memory: "1Gi" 3
limits.ephemeral-storage: "1Gi" 4
scopes:
- Terminating 5
storage-consumption.yaml
apiVersion: v1
kind: ResourceQuota
metadata:
name: storage-consumption
spec:
hard:
persistentvolumeclaims: "10" 1
requests.storage: "50Gi" 2
gold.storageclass.storage.k8s.io/requests.storage: "10Gi" 3
silver.storageclass.storage.k8s.io/requests.storage: "20Gi" 4
silver.storageclass.storage.k8s.io/persistentvolumeclaims: "5" 5
bronze.storageclass.storage.k8s.io/requests.storage: "0" 6
bronze.storageclass.storage.k8s.io/persistentvolumeclaims: "0" 7
