我安装了 Kubernetes 集群和 Prometheus/Prometheus 适配器。
这是prometheus适配器配置规则：
rules:
custom:
- seriesQuery: '{__name__=~"container_cpu_usage_seconds_total"}'
resources:
overrides:
template: "<<.Resource>>"
# namespace:
# resource: namespace
# pod:
# resource: pod
name:
matches: "container_cpu_usage_seconds_total"
as: "my_custom_metric"
metricsQuery: sum(<<.Series>>{container="php-apache"}) by (<<.GroupBy>>)
这是我的 hpa 配置：
apiVersion: autoscaling/v2beta2
kind: HorizontalPodAutoscaler
metadata:
name: php-apache
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: php-apache
minReplicas: 1
maxReplicas: 6
metrics:
- type: Pods
pods:
metric:
name: my_custom_metric
target:
type: Value
averageValue: 250 //limit
---
apiVersion: v1
kind: Service
metadata:
name: php-apache
labels:
run: php-apache
spec:
ports:
- port: 80
selector:
run: php-apache
这里的问题是我想根据container=php-apache使用的副本的摘要而不是它们的平均值进行扩展。
这是从 Prometheus 适配器返回的值：
{
"kind": "MetricValueList",
"apiVersion": "custom.metrics.k8s.io/v1beta1",
"metadata": {
"selfLink": "/apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/%2A/malakas"
},
"items": [
{
"describedObject": {
"kind": "Pod",
"namespace": "default",
"name": "php-apache-d4cf67d68-8ddbx",
"apiVersion": "/v1"
},
"metricName": "my_custom_metric",
"timestamp": "2021-04-16T10:52:02Z",
"value": "331827m",
"selector": null
},
{
"describedObject": {
"kind": "Pod",
"namespace": "default",
"name": "php-apache-d4cf67d68-zxkrd",
"apiVersion": "/v1"
},
"metricName": "my_custom_metric",
"timestamp": "2021-04-16T10:52:02Z",
"value": "44478m",
"selector": null
}
]
}
在此示例中，有 2 个副本。我想得到一个结果（这两个的总和），而不是像上面那样的两个结果，以便将结果传递给 hpa 并相应地缩放。
我怎样才能做到这一点？