*: moved docker files to the packaging folder

Makefile

@@ -5,6 +5,9 @@ GOPATH := $(shell go env GOPATH)
 JSFILES = $(shell find client -path client/node_modules -prune -o -type f -name '*.js')
 STATIC = build/static/index.html
 CHANNEL ?= release
+DOCKER_IMAGE_DEV_NAME=adguardhome-dev
+DOCKERFILE=packaging/docker/Dockerfile
+DOCKERFILE_HUB=packaging/docker/Dockerfile.travis
 
 TARGET=AdGuardHome
 
@@ -26,6 +29,11 @@ $(TARGET): $(STATIC) *.go home/*.go dhcpd/*.go dnsfilter/*.go dnsforward/*.go
 	CGO_ENABLED=0 go build -ldflags="-s -w -X main.version=$(GIT_VERSION) -X main.channel=$(CHANNEL) -X main.goarm=$(GOARM)" -asmflags="-trimpath=$(PWD)" -gcflags="-trimpath=$(PWD)"
 	PATH=$(GOPATH)/bin:$(PATH) packr clean
 
+docker:
+	docker build -t "$(DOCKER_IMAGE_DEV_NAME)" -f "$(DOCKERFILE)" .
+	@echo Now you can run the docker image:
+	@echo docker run --name "$(DOCKER_IMAGE_DEV_NAME)" -p 53:53/tcp -p 53:53/udp -p 3000:3000/tcp $(DOCKER_IMAGE_DEV_NAME)
+
 clean:
 	$(MAKE) cleanfast
 	rm -rf build