Important
This repository has been merged into waok8s/waok8s (v1.31+). All new development is there. Older versions remain here for reference only, but this repository is no longer maintained.
A metrics adapter for Kubernetes Metrics APIs that exposes custom metrics for WAO.
WAO Metrics Adapter exposes the following custom metrics for WAO:
inlet_temp: Server inlet temperature in Celsius.delta_p: Server differential pressure in Pascal.
Note
Make sure you have wao-core set up.
Install WAO Metrics Adapter.
kubectl apply -f https://github.com/waok8s/wao-metrics-adapter/releases/download/v1.30.1/wao-metrics-adapter.yamlWait for the pod to be ready.
kubectl wait pod $(kubectl get pods -n custom-metrics -l app=wao-metrics-adapter -o jsonpath="{.items[0].metadata.name}") -n custom-metrics --for condition=ReadyYou can fetch the metrics using kubectl get --raw command.
# Your node name
NODE=worker-1
# Inlet temperature
kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta2/nodes/$NODE/inlet_temp"
# Differential pressure
kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta2/nodes/$NODE/delta_p"Or you can use client libraries to fetch the metrics.
k8s.io/metrics/pkg/client/custom_metricshas the official clientgithub.com/waok8s/wao-core/pkg/clienthas our cached client
This project is using custom-metrics-apiserver, which is a library b 7CFE ased on Kubernetes API Aggregation Layer.
pkg/provider: Custom metrics provider.
Versioning: we use the same major.minor as Kubernetes, and the patch is our own.
- 2025-03-03
v1.30.2- Bump dependencies.
- 2025-02-26
v1.30.1- Bug fixes and improvements.
- 2024-05-17
v1.30.0- Support Kubernetes v1.30.
- 2024-05-07
v1.29.0- Support Kubernetes v1.29.
- 2024-03-29
v1.28.0- Support Kubernetes v1.28.
- 2024-03-04
v1.27.0- First release.
providerAdd the custom metrics provider.
This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) under its "Program to Develop and Promote the Commercialization of Energy Conservation Technologies to Realize a Decarbonized Society" (JPNP21005).
Copyright 2023 Bitmedia Inc.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.