chore: goreleaser and buildx

buildx.Dockerfile

@@ -0,0 +1,17 @@
+# syntax=docker/dockerfile:1.2
+FROM golang:1-alpine as builder
+
+RUN apk --no-cache --no-progress add git ca-certificates tzdata make \
+    && update-ca-certificates \
+    && rm -rf /var/cache/apk/*
+
+# syntax=docker/dockerfile:1.2
+# Create a minimal container to run a Golang static binary
+FROM scratch
+
+COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY whoami /
+
+ENTRYPOINT ["/whoami"]
+EXPOSE 80