feat: add Docker build

Makefile

@@ -1,4 +1,4 @@
-.PHONY: build run test clean
+.PHONY: build run test clean docker-build docker-run docker-push
 
 # Build the application
 build:
@@ -16,7 +16,6 @@ test:
 clean:
 	rm -f spore-registry
 	rm -rf registry/
-	rm -f registry.db
 
 # Run tests with coverage
 test-coverage:
@@ -35,3 +34,21 @@ lint:
 deps:
 	go mod download
 	go mod tidy
+
+# Docker variables
+DOCKER_REGISTRY ?= 
+IMAGE_NAME = wirelos/spore-registry
+IMAGE_TAG ?= latest
+FULL_IMAGE_NAME = $(if $(DOCKER_REGISTRY),$(DOCKER_REGISTRY)/$(IMAGE_NAME),$(IMAGE_NAME)):$(IMAGE_TAG)
+
+# Build Docker image
+docker-build:
+	docker build -t $(FULL_IMAGE_NAME) .
+
+# Run Docker container
+docker-run:
+	docker run -p 8080:8080 -v registry-data:/data/registry --rm $(FULL_IMAGE_NAME)
+
+# Push Docker image
+docker-push:
+	docker push $(FULL_IMAGE_NAME)