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lykops / k8s-monitor

monitor kubernetes

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Kubernetes Setup for Prometheus and Grafana

Quick start

To quickly start all the things just do this:

kubectl create namespace monitoring
kubectl --namespace monitoring create \
  --filename https://raw.githubusercontent.com/xiaoping378/k8s-monitor/master/manifests-all.yaml

To shut down all components again:

kubectl delete namespace monitoring

本项目依赖的所有docker镜像已打包放在百度云上,所有镜像均可以在docker hub上找到 下载镜像tar包

More Details

Alternatively follow these steps to get a feeling for the different components of this setup:

kubectl create --filename manifests/prometheus-core-configmap.yaml
# kubectl get configmaps
# kubectl delete configmaps/prometheus

kubectl create --filename manifests/prometheus-core-service.yaml
# kubectl get services/prometheus
# minikube service prometheus

kubectl create --filename manifests/prometheus-core-deployment.yaml
# kubectl get --all-namespaces --output wide pods
# kubectl logs prometheus-2556266794-sd260
# kubectl delete pods/prometheus-2556266794-sd260

kubectl create --filename manifests/node-exporter-service.yaml
kubectl create --filename manifests/node-exporter-daemonset.yaml

# create Alertmanager
kubectl create --filename manifests/prometheus-alert-configmap.yaml
kubectl create --filename manifests/prometheus-alert-service.yaml
kubectl create --filename manifests/prometheus-alert-deployment.yaml

kubectl create --filename manifests/grafana-service.yaml
# kubectl get services/grafana
# minikube service grafana

kubectl create --filename manifests/grafana-deployment.yaml
# kubectl get --all-namespaces --output wide pods

See grafana.net for some example dashboards and plugins.

  • Configure Prometheus data source for Grafana.
    Grafana UI / Data Sources / Add data source

    • Name: prometheus
    • Type: Prometheus
    • Url: http://prometheus:9090
    • Add

  • Import Prometheus Stats:
    Grafana UI / Dashboards / Import

    • Grafana.net Dashboard: https://grafana.net/dashboards/2
    • Load
    • Prometheus: prometheus
    • Save & Open

  • Import Kubernetes cluster monitoring:
    Grafana UI / Dashboards / Import

    • Grafana.net Dashboard: https://grafana.net/dashboards/162
    • Load
    • Prometheus: prometheus
    • Save & Open

Instead of manually configuring the datasource and dashboards you can run the following job. It uses the API to configure Grafana to a state similar to when you manually go through the steps described above.

kubectl create --filename manifests/grafana-import-dashboards-job.yaml

Create one single manifest file

target="./manifests-all.yaml"
rm "$target"
printf -- "# Derived from ./manifests/*.yaml\n---\n" >> "$target"
for file in ./manifests/*.yaml ; do
  if [ -e "$file" ] ; then
     cat "$file" >> "$target"
     printf -- "---\n" >> "$target"
  fi
done

create configmap file

kubectl create configmap prometheus-core --from-file=manifests/prometheus-core-configmap --output yaml --dry-run > manifests/prometheus-core-configmap.yaml
kubectl create configmap grafana-import-dashboards --from-file=manifests/grafana-import-dashboards-configmap --output yaml --dry-run > manifests/grafana-import-dashboards-configmap.yaml
kubectl create configmap prometheus-alert --from-file=manifests/prometheus-alert-configmap --output yaml --dry-run > manifests/prometheus-alert-configmap.yaml

Credits

Based on

https://github.com/giantswarm/kubernetes-prometheus

About

monitor kubernetes