docker: Add ARM64 image build support (#3876)

.travis.yml

@@ -16,24 +16,21 @@ env:
 - ARCH=i686
 
 script:
-# Refer https://blog.hypriot.com/post/setup-simple-ci-pipeline-for-arm-images/
-# prepare qemu
-- docker run --rm --privileged multiarch/qemu-user-static:register --reset
-# build image
-- docker build -t minio/minio:edge-armhf . -f Dockerfile.armhf
-# test image
-- docker run --rm minio/minio:edge-armhf version
-
 ## Run all the tests
 - make
 - make test GOFLAGS="-timeout 15m -race -v"
 - make coverage
 
+# Refer https://blog.hypriot.com/post/setup-simple-ci-pipeline-for-arm-images/
 # push image
 - >
   if [ "$TRAVIS_BRANCH" == "master" ] && [ "$TRAVIS_PULL_REQUEST" == "false" ] && [ "$ARCH" == "x86_64" ]; then
+    docker run --rm --privileged multiarch/qemu-user-static:register --reset
+    docker build -t minio/minio:edge-armhf . -f Dockerfile.armhf
+    docker build -t minio/minio:edge-aarch64 . -f Dockerfile.aarch64
     docker login -u="$DOCKER_USER" -p="$DOCKER_PASS"
     docker push minio/minio:edge-armhf
+    docker push minio/minio:edge-aarch64
   fi
 
 after_success:

Dockerfile.aarch64

@@ -0,0 +1,19 @@
+FROM resin/aarch64-alpine:3.5
+
+ENV GOPATH /go
+ENV PATH $PATH:$GOPATH/bin
+ENV CGO_ENABLED 0
+
+WORKDIR /go/src/github.com/minio/
+
+RUN  \
+     apk add --no-cache ca-certificates && \
+     apk add --no-cache --virtual .build-deps git go musl-dev && \
+     go get -v -d github.com/minio/minio && \
+     cd /go/src/github.com/minio/minio && \
+     go install -v -ldflags "$(go run buildscripts/gen-ldflags.go)" && \
+     rm -rf /go/pkg /go/src /usr/local/go && apk del .build-deps
+
+EXPOSE 9000
+ENTRYPOINT ["minio"]
+VOLUME ["/export"]