Cross-compile binaries on native platform using xgo

Massive speed boost

Dockerfile

@@ -1,19 +1,25 @@
 # build binary
-FROM golang:1.21 AS builder
+FROM --platform=$BUILDPLATFORM ghcr.io/crazy-max/xgo:latest AS builder
 
-COPY . /go/src/github.com/nimbolus/terraform-backend
+COPY . /source
+WORKDIR /source
 
-WORKDIR /go/src/github.com/nimbolus/terraform-backend
-
-RUN GOOS=linux CGO_ENABLED=1 go build ./cmd/terraform-backend
+ARG TARGETPLATFORM
+ENV TARGETS=$TARGETPLATFORM
+ENV PACK=cmd/terraform-backend
+ENV OUT=terraform-backend
+ENV GO111MODULE=on
+RUN xgo-build .
 
 # start clean for final image
 FROM debian:12
 
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get -q update && \
   apt-get -yq install ca-certificates && \
   apt-get autoclean
 
-COPY --from=builder /go/src/github.com/nimbolus/terraform-backend/terraform-backend /terraform-backend
+ARG TARGETPLATFORM
+COPY --from=builder /build/terraform-backend-${TARGETPLATFORM/\//-} /terraform-backend
 
 ENTRYPOINT ["/terraform-backend"]

go.mod

@@ -1,5 +1,6 @@
 module github.com/nimbolus/terraform-backend
 
+// warning: upgrading this might break the release flow (xgo)
 go 1.21
 
 require (