build: Build infrastructure images

Dockerfile.stcrashreceiver

@@ -1,18 +1,8 @@
-ARG GOVERSION=latest
-FROM golang:$GOVERSION AS builder
-
-WORKDIR /src
-COPY . .
-
-ENV CGO_ENABLED=0
-ENV BUILD_HOST=syncthing.net
-ENV BUILD_USER=docker
-RUN rm -f stcrashreceiver && go run build.go build stcrashreceiver
-
 FROM alpine
+ARG TARGETARCH
 
 EXPOSE 8080
 
-COPY --from=builder /src/stcrashreceiver /bin/stcrashreceiver
+COPY stcrashreceiver-linux-${TARGETARCH} /bin/stcrashreceiver
 
 ENTRYPOINT [ "/bin/stcrashreceiver" ]