在Ubuntu上管理Kubernetes資源,主要通過Kubernetes自身的資源管理機制及相關工具實現,具體如下:
resources
字段設置容器的資源請求(requests
)和限制(limits
)。例如:apiVersion: v1
kind: Pod
metadata:
name: my-pod
spec:
containers:
- name: my-container
image: nginx
resources:
requests:
memory: "64Mi"
cpu: "250m"
limits:
memory: "128Mi"
cpu: "500m"
ResourceQuota
對象在命名空間級別限制資源總量,包括CPU、內存、存儲及對象數量等。如:apiVersion: v1
kind: ResourceQuota
metadata:
name: compute-resources
namespace: my-namespace
spec:
hard:
requests.cpu: "1"
requests.memory: "1Gi"
limits.cpu: "2"
limits.memory: "2Gi"
pods: "4"
services: "5"
persistentvolumeclaims: "10"
kubectl top
命令或集成監控工具(如Prometheus、Grafana)監控資源使用情況,根據監控數據調整資源請求和限制,優化資源分配。[1,2,3,4,6,7,8,9,10,11]