To set up Prometheus on the worker cluster, users need to install this script. The script will automatically set up everything in the Monitoring namespace.
Requirements:
- Helm needs to be installed on the system.
- You need the Cortex endpoint with the Username & Password of the Tenant, managed by the users.
Script:
#!/bin/bash
#create Namespace
kubectl create namespace monitoring
# Adding Helm repository for Prometheus
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
# Installing Prometheus server using Helm
helm install prometheus-server prometheus-community/prometheus -n monitoring
# Asking user for the Cortex-nginx IP or Domain and Basic Auth credentials
echo "Enter Cortex-nginx IP or Domain (e.g., http://8005.server.xyz.np , http://192.168.12.12):"
read cortexNginx
echo "Enter Basic Auth username and password (format: username password):"
read UserName PasswordHttpAuth
# Creating the Prometheus custom values file
cat << EOF > prometheus_values.yaml
rbac:
create: true
podSecurityPolicy:
enabled: false
configmapReload:
prometheus:
enabled: true
server:
remoteWrite:
- url: $cortexNginx/api/prom/push
basic_auth:
username: $UserName
password: $PasswordHttpAuth
EOF
# Upgrading Prometheus using the custom values file
helm upgrade -f prometheus_values.yaml prometheus-server prometheus-community/prometheus -n monitoring