Add ARGs for cross-compiling

Add build args. Defaults to Linux/x64 so no change to existing image, but can build for other platforms - e.g. ``` docker build --build-arg GOOS=windows -t distribution-builder:windows . ``` Signed-off-by: Elton Stoneman <[email protected]>
distribution · May 23, 2017 · 646fc97 · 646fc97
1 parent a528cc1
commit 646fc97
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -3,6 +3,9 @@ FROM golang:1.8-alpine
 ENV DISTRIBUTION_DIR /go/src/github.com/docker/distribution
 ENV DOCKER_BUILDTAGS include_oss include_gcs
 
+ARG GOOS=linux
+ARG GOARCH=amd64
+
 RUN set -ex \
     && apk add --no-cache make git