LGTM Stack for Coolify

This repository contains the configuration for a complete LGTM (Loki, Grafana, Tempo, Mimir/Prometheus) observability stack, designed to be deployed on Coolify.

It includes services for log aggregation, metrics, traces, and visualization, with a secure, public-facing endpoint for telemetry data ingestion.

Services Included

Core Stack

• Grafana: The central dashboard for visualizing all your logs, metrics, and traces.
• Loki: For collecting and querying logs.
• Tempo: For collecting and querying traces.
• Prometheus: For collecting and querying metrics.
• Alloy: The collector that receives OpenTelemetry data (logs, metrics, traces) and forwards it to the appropriate backend service.
• PostgreSQL: The database backend for Grafana.

Setup Instructions

1. Clone the Repository:

   git clone <your-repository-url>
   cd automatearmy-lgtm-stack

2. Configure Environment Variables:

   • Rename the .env.example file to .env.
   • Open the .env file and fill in the required values.
   • SERVICE_FQDN_*: Set the public URLs for Grafana and Alloy. These will be the domains you point to your Coolify instance.
   • Passwords: Set strong passwords for Grafana and PostgreSQL.
   • GCS Credentials: Fill in your Google Cloud Storage bucket name and the full JSON for your service account key.
   • ALLOY_BASIC_AUTH: Generate a credential string for your public Alloy endpoint using the htpasswd utility:

     # Example for user 'my-app' and password 'super-secret'
     htpasswd -nbB my-app super-secret

     Copy the entire output (e.g., my-app:$2y$...) and paste it as the value for ALLOY_BASIC_AUTH.

3. Deploy to Coolify:

   • Point your Coolify instance to this repository.
   • Coolify will detect the docker-compose.yml file and automatically deploy the entire stack.
   • Ensure your domain's DNS records are pointing to your Coolify server's IP address.

Endpoints

• Grafana Dashboard: https://your-grafana-domain.com (as defined in .env)
• Alloy OTLP Ingestion Endpoint: https://your-alloy-domain.com (as defined in .env)