Others: Grafana Upgrade

Table Of Content

Grafana Upgrade

Prometheus/Grafana Setup

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Prerequisite 

• Kubernetes service is already installed in the Azure environment.

• Require VPN Connection (Perimeter for Onshore, SSL VPN Client for Offshore) to access the Azure cluster from your local laptop 

• Require Admin permission of local machine to install Azure CLI, Helm & Kubectl (Provided by Ashfaque for Offshore and by IT Tech Support for Onshore)

• Require  Azure AKS access credential from the IT administrator (Setup for individual user by Infrastructure Administrator)

• A decompression tool like WinRAR, 7Zip is required to be preinstalled to unzip .tar files

Monitoring Tool - Grafana 

kube-prometheus-stack collects Kubernetes manifests, Grafana dashboards, and Prometheus rules combined with documentation and scripts to provide easy to operate end-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator.

Prometheus collects all the matrics in backend and Grafana presents User interface, both work collectively to provide monitoring.

Grafana - Grafana is a pictorial representation of your data. 

Prometheus - Prometheus collects and stores its metrics as time series data, i.e. metrics information is stored with the timestamp at which it was recorded, alongside optional key-value pairs called labels.

Follow the Deployment steps below:

1. Open the following link: 

kube-prometheus-stack 69.3.1 · prometheus/prometheus-community  

2. Choose the Install option, screenshot below.

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Screenshot below:

3. Follow the below steps.

   1. Run the following command to Add repository: helm repo add prometheus-community Prometheus Community Kubernetes Helm Charts

Here, Iis the new namespace monitoring

Note: In the above command the highlighted word is just a release name that could be anything.

4. Run the following command to see the services and pods of  kube-prometheus-stack deployment.

5. Follow the below instructions to access Grafana in browser: 

   1. Run the following command to edit grafana-prometheus deployment file.

Note - To access the Grafana page directly from the browser need to change ClusterIP to LoadBalancer so that external IP of the service can be used for direct access.

Note: Incase change will not applied or don’t generate external IP then Run the following command to restart deployment : 

kubectl rollout restart deployment grafana-prometheus -n monitoring

Home Page Screenshot below : 

Open Browser highlighted in the above screenshot.

Scroll down and select the Namespace dashboard, Screenshot below.

Select the Namespace, Screenshot below.

All data will be shown in the dashboard .

Service Monitor - It monitor specific service and pods of the service which is having match label app/ kubernetes.io/name: event 

Upgrading Grafana on Debian/Ubuntu

1. Stop Grafana Service:

   bash

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   sudo systemctl stop grafana-server

2. Update the Package Repository:

   • Ensure that the package repository information is up to date.

   bash

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   sudo apt-get update

3. Upgrade Grafana:

   • Install the latest version of Grafana.

   bash

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   sudo apt-get install -y grafana

4. Start Grafana Service:

   • Restart the Grafana service to apply the upgrade.

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   sudo systemctl start grafana-server

5. Check Grafana Service Status:

   • Verify that Grafana is running correctly.

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   sudo systemctl status grafana-server