use minimal base docker image (#2197)

Author: M00nF1sh

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:experimental
 
-FROM --platform=${BUILDPLATFORM} golang:1.15.0 AS base
+FROM --platform=${TARGETPLATFORM} golang:1.16 AS base
 WORKDIR /workspace
 # Copy the Go Modules manifests
 COPY go.mod go.mod
@@ -21,17 +21,11 @@ RUN --mount=type=bind,target=. \
     GOOS=${TARGETOS} GOARCH=${TARGETARCH} GO111MODULE=on \
     CGO_CPPFLAGS="-D_FORTIFY_SOURCE=2" \
     CGO_LDFLAGS="-Wl,-z,relro,-z,now" \
-    go build -ldflags="-s -w -X ${VERSION_PKG}.GitVersion=${GIT_VERSION} -X ${VERSION_PKG}.GitCommit=${GIT_COMMIT} -X ${VERSION_PKG}.BuildDate=${BUILD_DATE}" -buildmode=pie -mod=readonly -a -o /out/controller main.go
-
-FROM amazonlinux:2 as bin-unix
-
-RUN yum update -y && \
-    yum clean all && \
-    rm -rf /var/cache/yum
+    go build -buildmode=pie -tags 'osusergo,netgo,static_build' -ldflags="-s -w -linkmode=external -extldflags '-static-pie' -X ${VERSION_PKG}.GitVersion=${GIT_VERSION} -X ${VERSION_PKG}.GitCommit=${GIT_COMMIT} -X ${VERSION_PKG}.BuildDate=${BUILD_DATE}" -mod=readonly -a -o /out/controller main.go
 
+FROM public.ecr.aws/eks-distro-build-tooling/eks-distro-minimal-base-nonroot:2021-08-22-1629654770 as bin-unix
 
 COPY --from=build /out/controller /controller
-USER 1002
 ENTRYPOINT ["/controller"]
 
 FROM bin-unix AS bin-linux

go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/aws-load-balancer-controller
 
-go 1.13
+go 1.16
 
 require (
 	github.com/aws/aws-sdk-go v1.40.10