k8s deployment控制器水平扩容
1. k8s-deployment水平扩缩容(启动多实例,提高并发)
-
第一种方式,修改配置文件
修改yaml里replicas值,再apply
-
使用命令方式扩容
kubectl scale deployment web --replicas=10
-
注:replicas参数控制Pod副本数量
2. 使用命令方式进行扩容
-
先查询pod
[root@k8s-master deployment]# kubectl get pods NAME READY STATUS RESTARTS AGE web-548b9bcc8-fktlm 1/1 Running 0 97m web-548b9bcc8-njf5m 1/1 Running 0 97m web-548b9bcc8-prxff 1/1 Running 0 97m
-
进行扩容
[root@k8s-master deployment]# kubectl scale deployment web --replicas=9 deployment.apps/web scaled
-
验证
[root@k8s-master deployment]# kubectl get pods NAME READY STATUS RESTARTS AGE web-548b9bcc8-2mrx9 1/1 Running 0 74s web-548b9bcc8-2qg7h 1/1 Running 0 74s web-548b9bcc8-fktlm 1/1 Running 0 98m web-548b9bcc8-kn8zp 1/1 Running 0 74s web-548b9bcc8-njf5m 1/1 Running 0 98m web-548b9bcc8-prxff 1/1 Running 0 98m web-548b9bcc8-rxflx 1/1 Running 0 74s web-548b9bcc8-wnfp6 1/1 Running 0 74s web-548b9bcc8-x24pv 1/1 Running 0 74s