设置命名空间中运行的Pod总数量的配额
当前环境
- OS Version: Ubuntu 16.04.2
- Docker Version: 17.12.1
- Kubernetes Version: binary 1.10.1
当前命名空间pods=4
$ kubectl get po
alpine 1/1 Running 0 3d
mysql-748ccddf77-4pb2p 1/1 Running 0 11h
nginx-54b6dcd86f-5qrbv 1/1 Running 0 12m
nginx-54b6dcd86f-ct455 1/1 Running 0 13m
由于nginx副本为2, 现在scale=0
$ kubectl scale deployment nginx --replicas=0
$ kubectl get po
alpine 1/1 Running 0 3d
mysql-748ccddf77-4pb2p 1/1 Running 0 11h
设置命名空间pods资源总数量配额pods=3
apiVersion: v1
kind: ResourceQuota
metadata:
name: pod-demo
spec:
hard:
pods: "3"
重新扩容nginx, scale=2, 因为命名空间配额为3, 所以nginx只会启动一个pod, 并不会报错
$ kubectl scale deployment nginx --replicas=2
$ kubectl get po
alpine 1/1 Running 0 3d
mysql-748ccddf77-4pb2p 1/1 Running 0 12h
nginx-54b6dcd86f-4cdrs 1/1 Running 0 6s
