Switch to use multi stage build for container

Remove binary build in ci_e2e_test.sh

Author: Cheng Pan

.dockerignore

@@ -1,2 +1 @@
-*
 !server

Dockerfile

@@ -11,9 +11,14 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-FROM amazonlinux:2 as amazonlinux
 
+FROM golang:1.12.7-stretch as builder
+WORKDIR /go/src/github.com/kubernetes-sigs/aws-alb-ingress-controller/
+COPY . .
+RUN make server
+
+FROM amazonlinux:2 as amazonlinux
 FROM scratch
 COPY --from=amazonlinux /etc/ssl/certs/ca-bundle.crt /etc/ssl/certs/
-COPY server server
+COPY --from=builder /go/src/github.com/kubernetes-sigs/aws-alb-ingress-controller/server server
 ENTRYPOINT ["/server"]

Makefile

@@ -38,7 +38,7 @@ LDFLAGS=-X $(PKG)/version.COMMIT=$(GIT_COMMIT) -X $(PKG)/version.RELEASE=$(TAG)
 server: cmd/main.go
 	CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH) go build -a -installsuffix cgo -ldflags '-s -w $(LDFLAGS)' -o server ./cmd
 
-container: server
+container:
 	docker build --pull -t $(PREFIX):$(TAG) .
 
 push:

scripts/ci_e2e_test.sh

@@ -128,13 +128,6 @@ build_push_controller_image() {
         return 1
     fi
 
-    echo "Building aws-alb-ingress-controller binary"
-    make clean && make server
-    if [[ $? -ne 0 ]]; then
-        echo "Unable to build aws-alb-ingress-controller binary" >&2
-        return 1
-    fi
-
     echo "Building aws-alb-ingress-controller image"
     if ! docker build -t "$CONTROLLER_IMAGE_NAME" ./; then
         echo "Unable to build aws-alb-ingress-controller image" >&2
@@ -203,4 +196,4 @@ main() {
     test $cluster_name
 }
 
-main $@
+main $@