Add Dockerfile and image

Dockerfile

@@ -0,0 +1,22 @@
+FROM golang:alpine as build
+
+WORKDIR /build
+
+RUN apk add --no-cache git
+
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 go build -tags jpeg -o cam2ip -ldflags "-s -w"
+
+
+FROM scratch
+
+COPY --from=build /build/cam2ip /cam2ip
+
+EXPOSE 56000
+
+ENTRYPOINT ["/cam2ip"]

README.md

@@ -48,6 +48,10 @@ Binaries are compiled with static OpenCV/libjpeg-turbo libraries, they should ju
 
 This will install app in `$GOPATH/bin/cam2ip`.
 
+### Run in Docker container
+
+    docker run --device=/dev/video0:/dev/video0 -p56000:56000 -it gen2brain/cam2ip
+
 ### Usage
 
 ```