Create docker

Makefile

@@ -1,3 +1,7 @@
+CONTAINER_NAME=pingator
+IMAGE_NAME=pingator
+EXTERNAL_PORT=8080
+
 run:
 	@npm start
 
@@ -6,3 +10,19 @@ build:
 	- @rm -rf build
 	@npm run build
 	@rm build/static/js/*.map
+
+docker-build:
+	- @docker image rm $(IMAGE_NAME)
+	@docker \
+		build \
+		--progress plain \
+		--tag $(IMAGE_NAME) \
+		.
+
+docker-run:
+	@docker \
+		run \
+		--publish $(EXTERNAL_PORT):3000 \
+		--name=$(CONTAINER_NAME) \
+		--detach \
+		$(IMAGE_NAME)