dockerfile added

Dockerfile

@@ -0,0 +1,19 @@
+FROM golang:alpine as build
+RUN apk add --no-cache ca-certificates openssh-client
+
+ARG SSH_PRIVATE_KEY
+
+WORKDIR /go/src/github.com/RapidCodeLab/rapid-prebid-server
+ADD . .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -ldflags '-extldflags "-static"' -o server ./cmd/app
+
+FROM scratch
+
+COPY --from=build /etc/ssl/certs/ca-certificates.crt \
+     /etc/ssl/certs/ca-certificates.crt
+
+COPY --from=build /go/src/github.com/RapidCodeLab/rapid-prebid-server/server 
+    /server
+
+ENTRYPOINT ["/server"]