K8s Monitoring with Prometheus + cAdvisor DaemonSet

1. Run cAdvisor Daemonset which K8s deploys the cAdvisor on every node in cluster

   kubectl create -f https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/cadvisor-daemonset.yml
   

2. Run Prometheus Configmap which provides config for prometheus server. If nessasary edit the config and run

   kubectl create -f https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/prometheus-configmap.yml
   

3. Apply RBAC

   kubectl apply -f https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/prometheus-rbac.yml
   

4. Now create Deployment which K8s creates Prometheus POD, Service with a NodePort 30900

   kubectl create -f https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/prometheus-deployment.yml
   

   • Open TCP port 30900 on any node in the cluster.
   • Access the Prometheus UI http://<NODE IP>:30900

     NOTE

   • I have relabeled __meta_kubernetes_pod_name to container_label_io_kubernetes_pod_name and __meta_kubernetes_namespace to container_label_io_kubernetes_pod_namespace which look like cAdvisor’s metric tag. So carefull it will add exported_ for those two metrics like exported_container_label_io_kubernetes_pod_namespace and exported_container_label_io_kubernetes_pod_name

• run.sh - https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/run.sh
• kill.sh - https://raw.githubusercontent.com/veerendra2/prometheus-k8s-monitoring/master/kill.sh