Prometheus & Grafana deployment on AKS with Helm.

Required tools:

• Helm - The package manager for Kubernetes.
• kubectl - Kubernetes command-line tool.
• AKS-cli - Azure command-line interface.

Tools Installation:

Install helm -> https://helm.sh/docs/intro/install/ + Install kubectl -> https://kubernetes.io/docs/tasks/tools/install-kubectl/ + Install AKS-cli -> https://docs.microsoft.com/en-us/cli/azure/install-azure-cli-apt?view=azure-cli-latest

Connect to AKS:

1. Login to your azure account:

az login

2. Set default subscription:

az account set --subscription <subscription>>

3. Get AKS ~/.kube/config:

az aks get-credentials --resource-group <resource-group> --name <name>

4. Set context to it:

kubectl config use-context <context>

Deploy Prometheus & Grafana into AKS:

1. Clone this repository (with SSH):

git clone git@github.com:jzizka91/deploy-prometheusgrafana.git

2. Run install_prometheus script

bash install_prometheus

The script will create a new namespace "monitoring" if it doesn't exist yet, and deploy Prometheus and Grafana into AKS with predefined simple custom configuration by using prometheus.yaml file. The script can also be used for deploying configuration changes made to prometheus-operator.yaml file.

• prometheus-operator.yaml file is used to overwrite original configuration values with custom values.
• All custom configuration changes can be seen in changelog_prometheus file.

Usage

Access Grafana (internally)

1. Get the Pod name and store it in the environment variable $POD_NAME:

export POD_NAME=$(kubectl get pods --namespace monitoring -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}' | grep grafana)

2. Expose grafana port within the cluster:

kubectl --namespace monitoring port-forward $POD_NAME 3000

3. Open Grafana in Browser:

127.0.0.1:3000

Access Grafana (externally)

Since Grafana was deployed with service type "LoadBalancer" we can access Grafana externally by using external IP address which was automatically assigned to Grafana.

1. Get Grafana assigned external IP address:

export EXT_IP=$(kubectl get services --namespace monitoring prometheus-grafana --template "{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}") && echo "Grafana external IP address is: $EXT_IP"

2 Copy external IP address and use it to access Grafana via Browser.

Login: admin | admin

Grafana Dashboards

There is many Dashboards you can choose from -> link:https://grafana.com/grafana/dashboards?direction=asc&orderBy=name&dataSource=prometheus[Grafana Dashboards] + Grafana is currenty using this Dashboard -> link:https://grafana.com/grafana/dashboards/11074[Node Exporter for Prometheus Dashboard]