added dockerfile

Dockerfile

@@ -0,0 +1,23 @@
+FROM node as jsbuild
+
+ADD s3browser-frontend /s3browser-frontend
+WORKDIR /s3browser-frontend
+
+RUN yarn install
+RUN yarn run build
+
+FROM golang as gobuild
+
+ADD s3browser-backend /s3browser-backend
+
+WORKDIR /s3browser-backend
+
+COPY --from=jsbuild /s3browser-frontend/build /s3browser-backend/internal/static
+
+RUN go build -o s3browser -tags prod ./cmd/s3Browser.go
+
+FROM gcr.io/distroless/base-debian10
+
+COPY --from=gobuild  /s3browser-backend/s3browser /
+
+CMD [ "/s3browser" ]