Refactor build of docker images

images/e2e-prow/Makefile

@@ -1,3 +1,17 @@
+# Copyright 2018 The Kubernetes Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+
 TAG ?=v$(shell date +%m%d%Y)-$(shell git rev-parse --short HEAD)
 REGISTRY ?= quay.io/kubernetes-ingress-controller
 
@@ -5,13 +19,8 @@ IMAGE = $(REGISTRY)/e2e-prow
 
 .PHONY: image
 image:
-	docker buildx build \
-		--pull \
-		--push \
-		--progress plain \
-		--platform amd64 \
+	docker build \
 		--build-arg K8S_RELEASE=v1.17.0 \
-		--build-arg ETCD_VERSION=v3.3.18 \
 		--build-arg KIND_VERSION=v0.8.0 \
 		--build-arg GO_VERSION=1.14.2 \
-		-t $(IMAGE):$(TAG) .
+		-t $(IMAGE):$(TAG) rootfs