1.开启prometheus 插件
部署的是 EMQX 4.4 开源版, 则需要通过 EmqxPlugin CRD 开启emqx_prometheus 插件:
cat << "EOF" | kubectl apply -f -
apiVersion: apps.emqx.io/v1beta4
kind: EmqxPlugin
metadata:name: emqx-prometheus
spec:pluginName: emqx_prometheusselector:apps.emqx.io/instance: emqxapps.emqx.io/managed-by: emqx-operator
获取AppID和AppSecret
curl -u {AppID}:{AppSecret} -X GET localhost:18083/api/v4/emqx_prometheus?type=prometheus
2.配置 EMQX 服务的 Kubernetes Service
确保 EMQX 的接口通过一个 Kubernetes Service 暴露。
kind: Service
apiVersion: v1
metadata:name: emqx-prometheuslabels:app: emqx
spec:ports:- name: prometheusprotocol: TCPport: 18083targetPort: 18083type: ClusterIPselector:apps.emqx.io/instance: emqxapps.emqx.io/managed-by: emqx-operator
3.创建 ServiceMonitor
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:name: emqx-monitor
spec:endpoints:- basicAuth:password:key: passwordname: emqx-basic-authusername:key: usernamename: emqx-basic-authparams:type:- prometheuspath: /api/v4/emqx_prometheusport: prometheusscheme: httpnamespaceSelector:matchNames:- mes-emqxselector:matchLabels:app: emqx
4.创建 BasicAuth Secret
kubectl create secret generic emqx-basic-auth \--from-literal=username={AppID} \--from-literal=password={AppSecret}
5.验证Promethues 是否已经能读取到emqx的metric
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