我配置了一个自定义指标。
当我跑步时:
kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta1/namespaces/my-namespace/deployments.extensions/sample-app/queue_length" | jq
我知道了
...
"items": [
{
"describedObject": {
"kind": "Deployment",
"namespace": "my-namespace",
"name": "sample-app",
"apiVersion": "extensions/v1beta1"
},
"metricName": "queue_length",
"timestamp": "2018-10-09T18:14:15Z",
"value": "30"
}
]
...
因此,我想使用此指标扩展部署:
kind: HorizontalPodAutoscaler
apiVersion: autoscaling/v2beta1
metadata:
name: sample-app
namespace: my-namespace
spec:
scaleTargetRef:
apiVersion: extensions/v1beta1
kind: Deployment
name: sample-app
minReplicas: 1
maxReplicas: 10
metrics:
- type: Object
object:
metricName: queue_length
target:
apiVersion: extensions/v1beta1
kind: Deployment
name: sample-app
targetValue: 20
但是它似乎不起作用,也许我必须指定- type: Object
有点不同。
我尝试将kind
更改为Deployments,Deployments.extension,Deployments.extensions等,但我不断收到错误FailedGetScale
更新。:我发现HPA对象和目标对象的名称空间应该相同,因此我对其进行了更改。现在我得到
the HPA was unable to compute the replica count: unable to get metric queue_length: Deployment on default sample-app/unable to fetch metrics from custom metrics API: the server could not find the metric queue_length for deployments.extensions sample-app
Upd2。:弄清楚:hpa在命名空间default
中,而指标暴露在my-namespace
中。因此,应谨慎使用名称空间!
答案 0 :(得分:0)
尝试一下:
---
kind: HorizontalPodAutoscaler
apiVersion: autoscaling/v2beta1
metadata:
name: sample-app
namespace: my-namespace
spec:
scaleTargetRef:
apiVersion: extensions/v1beta1
kind: Deployment
name: sample-app
minReplicas: 1
maxReplicas: 10
metrics:
- type: Object
object:
target:
kind: Service
name: sample-app
metricName: queue_length
targetValue: 20