Compile to native arch

This is needed for ARM, where GOARCH is arm64 but the uname reports aarch64.

Author: yselkowitz

Dockerfile

@@ -5,7 +5,7 @@ ADD . /build/
 
 
 RUN mkdir /tmp/cache
-RUN export GARCH="$(uname -m)" && if [[ ${GARCH} == "x86_64" ]]; then export GARCH="amd64"; fi && GOOS=linux GOARCH=${GARCH} CGO_ENABLED=0 GOCACHE=/tmp/cache go build  -mod=vendor -v -o /tmp/api-server .
+RUN CGO_ENABLED=0 GOCACHE=/tmp/cache go build  -mod=vendor -v -o /tmp/api-server .
 
 FROM scratch