feat: default log size per service (#20)

Author: pilat

docs/index.md

@@ -35,3 +35,6 @@ Automatically generates and manages SSL certificates for local development.
 
 ### Automatic Host File Updates
 Manages your `/etc/hosts` file automatically — no manual editing required.
+
+### Sensible Defaults
+Applies reasonable defaults to prevent common issues. For example, container logs are automatically limited to 10MB per service to prevent disk space exhaustion.

docs/logs.md

@@ -26,3 +26,18 @@ devbox logs service1 service2
 # View logs from a specific project
 devbox --name project-name logs
 ```
+
+## Log Size Limits
+
+DevBox automatically limits container logs to **10MB per service** to prevent disk space exhaustion. This is applied to all services that don't have explicit logging configuration.
+
+To override for a specific service, add a `logging` section in your `docker-compose.yaml`:
+
+```yaml
+services:
+  verbose-service:
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "50m"
+```

internal/project/project.go

@@ -92,6 +92,7 @@ func New(ctx context.Context, projectName string, profiles []string) (*Project,
 		applyHosts,
 		applyCert,
 		setupGracePeriod,
+		applyDefaultLogging,
 		applyLabels,
 		mountSourceVolumes,
 	}
@@ -287,6 +288,24 @@ func setupGracePeriod(p *Project) error {
 	return nil
 }
 
+func applyDefaultLogging(p *Project) error {
+	for name, svc := range p.Services {
+		if svc.Logging != nil {
+			continue
+		}
+
+		svc.Logging = &types.LoggingConfig{
+			Options: map[string]string{
+				"max-size": "10m",
+				"max-file": "1",
+			},
+		}
+		p.Services[name] = svc
+	}
+
+	return nil
+}
+
 func applyLabels(p *Project) error {
 	for name, s := range p.Services {
 		s.CustomLabels = map[string]string{