Fix Docker buildx compatibility and secure database credentials

- Remove hardcoded credentials from docker-compose.yml
- Use environment variables from .env file for database config
- Add DOCKER_BUILDKIT=0 to Mage docker commands for buildx compatibility
- Update documentation with legacy builder workarounds
- Fix Caddyfile access_log directive error

Author: dunamismax

Caddyfile

@@ -33,11 +33,6 @@ localhost, localhost:80, localhost:443 {
 		format console
 		level INFO
 	}
-
-	# Access logging
-	access_log stdout {
-		format console
-	}
 }
 
 # Production domain configuration (uncomment and configure for production)

README.md

@@ -91,6 +91,8 @@ docker compose up --build
 
 **Requirements:** Docker and Docker Compose
 
+> **Note:** This project uses the legacy Docker builder (`DOCKER_BUILDKIT=0`) for maximum compatibility. The Mage commands handle this automatically.
+
 ### Local Development
 
 ```bash
@@ -173,6 +175,18 @@ mage dockerReset      # Reset Docker environment (remove volumes)
 mage dockerLogs       # Show logs from all Docker services
 ```
 
+**Docker Build Issues:**
+
+If you encounter buildx plugin errors, the Mage commands automatically use the legacy builder. For manual commands:
+
+```bash
+# Use legacy builder for compatibility
+DOCKER_BUILDKIT=0 docker compose up --build
+
+# Or use the Mage command (handles this automatically)
+mage docker
+```
+
 **Quality & Production:**
 
 ```bash

docker-compose.override.yml

@@ -21,7 +21,7 @@ services:
       LOG_LEVEL: debug
 
       # Development database connection
-      DATABASE_URL: postgres://user:password@postgres:5432/gowebserver?sslmode=disable
+      DATABASE_URL: postgres://${DATABASE_USER}:${DATABASE_PASSWORD}@postgres:5432/gowebserver?sslmode=disable
 
       # Enable development features
       FEATURES_ENABLE_METRICS: "true"

docs/deployment.md

@@ -11,7 +11,7 @@ scp bin/server user@server:/opt/app/
 
 # Set environment and run
 export APP_ENVIRONMENT=production
-export DATABASE_URL=postgres://user:password@localhost:5432/gowebserver?sslmode=disable
+export DATABASE_URL=postgres://${DATABASE_USER}:${DATABASE_PASSWORD}@localhost:5432/gowebserver?sslmode=disable
 /opt/app/server
 ```
 

docs/docker.md

@@ -21,8 +21,8 @@ cd go-web-server
 cp .env.example .env
 # Edit .env with your database credentials (DATABASE_USER, DATABASE_PASSWORD, etc.)
 
-# Start all services
-docker compose up --build
+# Start all services (uses legacy builder for compatibility)
+DOCKER_BUILDKIT=0 docker compose up --build
 
 # Access application
 open http://localhost        # Via Caddy reverse proxy
@@ -243,6 +243,16 @@ docker compose logs postgres
 docker exec -it gowebserver-postgres psql -U user -d gowebserver -c "SELECT 1;"
 ```
 
+**Docker buildx issues:**
+
+```bash
+# If you see "fork/exec docker-buildx" errors, use legacy builder
+DOCKER_BUILDKIT=0 docker compose up --build
+
+# Or use Mage commands (handles this automatically)
+mage docker
+```
+
 ### Performance Optimization
 
 **Database tuning in docker-compose.yml:**

docs/security.md

@@ -180,7 +180,7 @@ PostgreSQL connection security:
 
 ```bash
 # Secure connection strings
-DATABASE_URL="postgres://user:password@localhost:5432/gowebserver?sslmode=require"
+DATABASE_URL="postgres://${DATABASE_USER}:${DATABASE_PASSWORD}@localhost:5432/gowebserver?sslmode=require"
 
 # Connection pooling limits
 DATABASE_MAX_CONNECTIONS=25

internal/config/config.go

@@ -146,7 +146,7 @@ func getDefaults() Config {
 			RunMigrations   bool          `koanf:"run_migrations"`
 			SSLMode         string        `koanf:"ssl_mode"`
 		}{
-			URL:             "postgres://user:password@localhost:5432/gowebserver?sslmode=disable",
+			URL:             "postgres://${DATABASE_USER}:${DATABASE_PASSWORD}@localhost:5432/gowebserver?sslmode=disable",
 			MaxConnections:  25,
 			MinConnections:  5,
 			Timeout:         30 * time.Second,