[쿠버네티스 DevOps 구축] - Prometheus 와 Grafana 설치하기
목차 [쿠버네티스 DevOps 구축] - OpenSearch 설치하기 [쿠버네티스 DevOps 구축] - Prometheus 와 Grafana 설치하기 [쿠버네티스 DevOps 구축] - Keycloak 설치하기 [쿠버네티스 DevOps 구축] - Ingress Nginx Controller 설치하기 [쿠버네티스 DevOps 구축] - Local PC 쿠버네티스 동적 프로비저닝을 위한 StorageClass 설치 [쿠버네티스 DevOps 구축] - Local PC 에 쿠버네티스 설치하기 ✅ 메트릭 수집을 위한 Prometheus서비스를 올렸다고 해서 끝이 아니다! 서비스를 운용하는 입장에서는 시스템이 안정적인지 지속적으로 확인을 해야 하는데, 운영하는 서비스의 CPU 사용률, 메모리 사용률과 같은 메트릭 정보를 지속적으로 수집하는 시스템을 구축해야 합니다. 저는 대중적으로 많이 알려진 Prometheus 를 이용해 쿠버네티스에서 운영중인 서비스에 대한 메트릭 정보를 수집하려고 합니다. Helm 을 이용한 Prometheus 설치# helm repo 추가helm repo add prometheus-community https://prometheus-community.github.io/helm-charts# prometheus 설치helm upgrade --install -f ./values-prometheus.yaml prometheus prometheus-community/prometheus -n monitoring --create-namespace Release "prometheus" does not exist. Installing it now.NAME: prometheusLAST DEPLOYED: Fri Nov 15 10:11:47 2024NAMESPACE: monitoringSTATUS: deployedREVISION: 1TEST SUITE: NoneNOTES:The Prometheus server can be accessed via port 80 on the following DNS name from within your cluster:prometheus-server.monitoring.svc.cluster.localGet the Prometheus server URL by running these commands in the same shell: export POD_NAME=$(kubectl get pods --namespace monitoring -l "app.kubernetes.io/name=prometheus,app.kubernetes.io/instance=prometheus" -o jsonpath="{.items[0].metadata.name}") kubectl --namespace monitoring port-forward $POD_NAME 9090####################################################################################### WARNING: Persistence is disabled!!! You will lose your data when ########### the Server pod is terminated. ######################################################################################The Prometheus alertmanager can be accessed via port 9093 on the following DNS name from within your cluster:prometheus-alertmanager.monitoring.svc.cluster.localGet the Alertmanager URL by running these commands in the same shell: export POD_NAME=$(kubectl get pods --namespace monitoring -l "app.kubernetes.io/name=alertmanager,app.kubernetes.io/instance=prometheus" -o jsonpath="{.items[0].metadata.name}") kubectl --namespace monitoring port-forward $POD_NAME 9093####################################################################################### WARNING: Persistence is disabled!!! You will lose your data when ########### the AlertManager pod is terminated. ############################################################################################################################################################################# WARNING: Pod Security Policy has been disabled by default since ########### it deprecated after k8s 1.25+. use ########### (index .Values "prometheus-node-exporter" "rbac" ########### . "pspEnabled") with (index .Values ########### "prometheus-node-exporter" "rbac" "pspAnnotations") ########### in case you still need it. ######################################################################################The Prometheus PushGateway can be accessed via port 9091 on the following DNS name from within your cluster:prometheus-prometheus-pushgateway.monitoring.svc.cluster.localGet the PushGateway URL by running these commands in the same shell: export POD_NAME=$(kubectl get pods --namespace monitoring -l "app=prometheus-pushgateway,component=pushgateway" -o jsonpath="{.items[0].metadata.name}") kubectl --namespace monitoring port-forward $POD_NAME 9091For more information on running Prometheus, visit:https://prometheus.io/ ✅ 모니터링을 위한 Grafana메트릭 수집을 위한 Prometheus 를 설치 했는데! 단순 메트릭 정보만 있으면 운영하는 입장에서 가시적으로 와 닿지 않습니다.