如何在Prometheus中编写嵌套的label_replace查询？

Question

我具有followinf形式的指标：

kube_deployment_labels{deployment="application1-deployment",endpoint="http",instance="10.273.78.36:8180",job="kube-state-metrics",label_app="applcation-request-adapter",label_environment="dev",label_version="dev",namespace="default",pod="kore-prom-kube-state-metrics-654d86c799-2kqzs",service="kore-prom-kube-state-metrics"}

我需要在名称空间上对dev_namespace进行标签替换，对label_version对dev_version进行标签替换。如何编写嵌套的label_replace语句？我可以将它们分别应用于：

label_replace(kube_deployment_labels{label_app=~".*",label_environment=~"dev",label_version=~"dev"}, "dev_namespace", "$1", "namespace", "(.*)")

和

label_replace(kube_deployment_labels{label_app=~".*",label_environment=~"dev",label_version=~"dev"}, "dev_version", "$1", "label_version", "(.*)")

如何将它们组合在一起以在Prometheus中同时重命名或替换多个标签？

Answer 1

经过一些解决，我找到了解决方案。我以为我会在这里张贴它，以便其他人可以看看：

label_replace(label_replace(kube_deployment_labels{label_app=~".*",label_environment=~"dev",label_version=~"dev"}, "dev_namespace", "$1", "namespace", "(.*)"), "dev_version", "$1", "label_version", "(.*)")