2.3. API资源配额-Kubernets合辑9-资源约束

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```
apiVersion: v1
kind: ResourceQuota
metadata:
  name: computer-resource
  namespace: apps
spec:
  hard:
    requests.cpu: 1000m
    requests.memory: 2048Mi
    limits.cpu: 6000m
    limits.memory: 8192Mi
    pods: 3

```

```
[root@maxiaoke local-k8s-yaml]# kubectl describe ns apps 
Name:         apps
Labels:       <none>
Annotations:  Status:  Active

Resource Quotas
 Name:            computer-resource
 Resource         Used  Hard
 --------         ---   ---
 limits.cpu       0     6
 limits.memory    0     8Gi
 pods             0     3
 requests.cpu     0     1
 requests.memory  0     2Gi

Resource Limits
 Type       Resource  Min   Max  Default Request  Default Limit  Max Limit/Request Ratio
 ----       --------  ---   ---  ---------------  -------------  -----------------------
 Container  cpu       50m   1    100m             500m           -
 Container  memory    64Mi  2Gi  128Mi            1Gi            -

```

```
apiVersion: apps/v1
kind: Deployment
metadata:
  name: slb-deploy
  namespace: apps
spec:
  replicas: 2
  selector:
    matchLabels:
      app: slb
  template:
    metadata:
      labels:
        app: slb
    spec:
      containers:
      - name: slb-demo
        image: linuxmaxiaoke/nginx:v1.0.0

```

```
[root@maxiaoke local-k8s-yaml]# kubectl get deployments.apps -n apps slb-deploy  # 当副本数为2时，能运行正常
NAME         READY   UP-TO-DATE   AVAILABLE   AGE
slb-deploy   2/2     2            2           11s
[root@maxiaoke local-k8s-yaml]# kubectl describe ns apps 
Name:         apps
Labels:       <none>
Annotations:  Status:  Active

Resource Quotas
 Name:            computer-resource
 Resource         Used   Hard
 --------         ---    ---
 limits.cpu       1      6
 limits.memory    2Gi    8Gi
 pods             2      3
 requests.cpu     200m   1
 requests.memory  256Mi  2Gi

```
[root@maxiaoke local-k8s-yaml]# kubectl get deployments.apps -n apps slb-deploy # 当副本数超过3时，超过的部分无法启动
NAME         READY   UP-TO-DATE   AVAILABLE   AGE
slb-deploy   3/5     3            3           38s
[root@maxiaoke local-k8s-yaml]# kubectl describe ns apps 
Name:         apps
Labels:       <none>
Annotations:  Status:  Active

Resource Quotas
 Name:            computer-resource
 Resource         Used   Hard
 --------         ---    ---
 limits.cpu       1500m  6
 limits.memory    3Gi    8Gi
 pods             3      3
 requests.cpu     300m   1
 requests.memory  384Mi  2Gi

该分类下的相关小册推荐：

Kubernetes中文教程(三)

Kubernets合辑11-持续集成

Kubernets合辑6-服务发现

Kubernets合辑10-网络

Kubernets合辑3-kubernetes介绍

Kubernetes中文教程(五)

Kubernets合辑8-权限控制

Kubernets合辑2-部署Ingress

Kubernets合辑15-持续部署

Kubernets合辑7-存储

Kubernets合辑14-日志收集

云原生-K8S入门实战