feat: Added multistage build, removed unnecessary stuff from final image by only leaving the built binary. Added env variables reading instructions in Makefile

Dockerfile

@@ -10,6 +10,10 @@ COPY ./ ./
 WORKDIR /app/cmd/versitygw
 RUN go build -o versitygw
 
+FROM alpine:latest
+
 RUN mkdir /tmp/vgw
 
-ENTRYPOINT [ "./versitygw" ]
+COPY --from=0 /app/cmd/versitygw/versitygw /app/versitygw
+
+ENTRYPOINT [ "/app/versitygw" ]

Makefile

@@ -78,12 +78,12 @@ dist: $(BIN).spec
 # Creates and runs S3 gateway instance in a docker container
 .PHONY: up-posix
 up-posix:
-	docker compose up posix
+	docker compose --env-file .env.dev up posix
 
 # Creates and runs S3 gateway proxy instance in a docker container
 .PHONY: up-proxy
 up-proxy:
-	docker compose up proxy
+	docker compose --env-file .env.dev up proxy
 
 # Creates and runs both S3 gateway and proxy server instances in docker containers
 .PHONY: up-app