From e88a5a4cf4b0e2c2a6f1cb6bec337963ad0c34ea Mon Sep 17 00:00:00 2001
From: Jose Henrique <jose.henrique.ivan@gmail.com>
Date: Fri, 12 Sep 2025 21:25:39 -0300
Subject: [PATCH] improving db connection

---
 docker-compose.yaml  |   5 +-
 monitoring/README.md | 149 -------------------------------------------
 2 files changed, 3 insertions(+), 151 deletions(-)
 delete mode 100644 monitoring/README.md

diff --git a/docker-compose.yaml b/docker-compose.yaml
index e639ac1..ff9a379 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -7,10 +7,11 @@ services:
     restart: unless-stopped
     image: git.ivanch.me/ivanch/opencand.api:latest
     ports:
-      - "5100:8080" 
+      - "5100:8080"
     environment:
       ASPNETCORE_ENVIRONMENT: "Production"
-      DatabaseSettings__ConnectionString: "Host=db;Port=5432;Database=opencand;Username=root;Password=root"
+      Logging__LogLevel__Default: "Information"
+      DatabaseSettings__ConnectionString: "Host=db;Port=5432;Database=opencand;Username=root;Password=root;Pooling=true;Minimum Pool Size=1;Maximum Pool Size=20;Connection Lifetime=300;Command Timeout=30;Application Name=OpenCand.API;Include Error Detail=true"
       FotosSettings__ApiBasePath: "https://api.opencand.ivanch.me/assets/fotos"
     volumes:
       - ./fotos_cand:/app/fotos_cand
diff --git a/monitoring/README.md b/monitoring/README.md
deleted file mode 100644
index 145956a..0000000
--- a/monitoring/README.md
+++ /dev/null
@@ -1,149 +0,0 @@
-# OpenCand Monitoring Setup
-
-This monitoring stack provides comprehensive log aggregation and visualization for the OpenCand project, with special focus on the ETL service.
-
-## Services Overview
-
-### 🔍 **Grafana Loki** (Port 3100)
-- **Purpose**: Log aggregation and storage
-- **Access**: http://localhost:3100
-- **Description**: Collects and stores all container logs in a structured format
-
-### 📊 **Grafana** (Port 3000)
-- **Purpose**: Log visualization and dashboards
-- **Access**: http://localhost:3000
-- **Credentials**: 
-  - Username: `admin`
-  - Password: `admin`
-- **Pre-configured Dashboards**: OpenCand ETL Monitoring dashboard
-
-### 📈 **Prometheus** (Port 9090)
-- **Purpose**: Metrics collection and storage
-- **Access**: http://localhost:9090
-- **Description**: Collects system and application metrics
-
-### 🖥️ **Node Exporter** (Port 9100)
-- **Purpose**: System metrics collection
-- **Access**: http://localhost:9100/metrics
-- **Description**: Provides host system metrics (CPU, memory, disk, etc.)
-
-### 🚚 **Promtail**
-- **Purpose**: Log collection agent
-- **Description**: Automatically discovers and ships Docker container logs to Loki
-
-## Key Features
-
-### ETL-Specific Monitoring
-- ✅ Real-time ETL process logs
-- ✅ Error tracking and alerting capabilities
-- ✅ Performance metrics monitoring
-- ✅ Data processing progress tracking
-
-### Container Log Management
-- ✅ Automatic log rotation (10MB max size, 3 files)
-- ✅ Structured log labeling
-- ✅ Multi-service log aggregation
-
-### Pre-built Dashboards
-- ✅ OpenCand ETL Logs viewer
-- ✅ API logs monitoring
-- ✅ Database logs tracking
-- ✅ Container resource usage
-
-## Getting Started
-
-1. **Start the monitoring stack**:
-   ```bash
-   docker-compose up -d
-   ```
-
-2. **Access Grafana**:
-   - Open http://localhost:3000
-   - Login with admin/admin
-   - Navigate to "Dashboards" → "OpenCand ETL Monitoring"
-
-3. **View ETL Logs in Real-time**:
-   - In Grafana, go to "Explore"
-   - Select "Loki" as datasource
-   - Use query: `{container_name="opencand_etl"}`
-
-4. **Monitor System Metrics**:
-   - Access Prometheus at http://localhost:9090
-   - View system metrics from Node Exporter
-
-## Log Queries Examples
-
-### ETL Service Logs
-```logql
-{container_name="opencand_etl"}
-```
-
-### Error Logs Only
-```logql
-{container_name="opencand_etl"} |= "ERROR"
-```
-
-### API Logs with Filtering
-```logql
-{container_name="opencand_api"} |= "Microsoft.AspNetCore"
-```
-
-### Database Connection Logs
-```logql
-{container_name="opencand_db"} |= "connection"
-```
-
-## Configuration Files
-
-- **Loki**: `./monitoring/loki-config.yaml`
-- **Promtail**: `./monitoring/promtail-config.yaml`
-- **Prometheus**: `./monitoring/prometheus.yml`
-- **Grafana Datasources**: `./monitoring/grafana/provisioning/datasources/`
-- **Grafana Dashboards**: `./monitoring/grafana/provisioning/dashboards/`
-
-## Data Persistence
-
-The following volumes are created for data persistence:
-- `loki-data`: Loki log storage
-- `prometheus-data`: Prometheus metrics storage
-- `grafana-data`: Grafana dashboards and settings
-
-## Troubleshooting
-
-### ETL Logs Not Appearing
-1. Check if ETL container is running: `docker ps`
-2. Verify Promtail is collecting logs: `docker logs opencand_promtail`
-3. Check Loki status: `curl http://localhost:3100/ready`
-
-### Grafana Dashboard Issues
-1. Verify datasources are configured correctly
-2. Check if Loki is accessible from Grafana container
-3. Restart Grafana container: `docker-compose restart grafana`
-
-### Performance Issues
-1. Monitor disk usage for log storage
-2. Adjust log retention in `loki-config.yaml`
-3. Increase resource limits if needed
-
-## Customization
-
-### Adding More Dashboards
-1. Create JSON dashboard files in `./monitoring/grafana/provisioning/dashboards/`
-2. Restart Grafana container
-
-### Log Retention Configuration
-Edit `./monitoring/loki-config.yaml` to adjust retention policies:
-```yaml
-limits_config:
-  retention_period: 168h  # 7 days
-```
-
-### Alert Configuration
-Add alerting rules to Prometheus configuration for ETL failure notifications.
-
-## Security Notes
-
-- Change default Grafana admin password in production
-- Restrict network access to monitoring ports
-- Consider using authentication for external access
-- Regularly update monitoring stack images