project: added docker file. Makefile: added build image app and run container

Author: Lapp

Dockerfile

@@ -0,0 +1,17 @@
+FROM golang:1.16.4-alpine3.13 AS builder
+
+COPY ./ /github.com/Lapp-coder/websocket-chat
+WORKDIR /github.com/Lapp-coder/websocket-chat
+
+RUN go mod download
+RUN go build -o ./build/bin/chat ./...
+
+FROM alpine:latest
+
+WORKDIR /opt/
+
+COPY --from=builder /github.com/Lapp-coder/websocket-chat/build/bin/chat .
+
+EXPOSE 8080
+
+CMD ["./chat"]

Makefile

@@ -6,3 +6,9 @@ build:
 
 run: build
 	./main
+
+docker-build:
+	docker build -t websocket-chat .
+
+docker-run: docker-build
+	docker run --name=chat -e CHAT_HOST=0.0.0.0 -e CHAT_PORT=8080 -p 8080:8080 --rm websocket-chat