Containerfile and build target

container/Containerfile

@@ -0,0 +1,24 @@
+FROM docker.io/golang:alpine as go
+WORKDIR /build
+# ADD rex_server/go.mod rex_server/go.sum ./ # WARNING: Include go.sum
+ADD rex_server/go.mod ./
+
+RUN go mod download
+
+# Add the rest of the source
+ADD . .
+
+RUN go build -o ./rexserver ./rex_server/server.go
+
+# Runner image, drop privileges
+FROM docker.io/alpine:latest as runner
+RUN adduser -D nonroot
+RUN addgroup nonroot nonroot
+WORKDIR /app
+RUN chown nonroot:nonroot /app
+
+COPY --from=go /build/rexserver rexserver
+EXPOSE 8080
+USER nonroot:nonroot
+CMD ["./rexserver"]
+