Add a fake git server image for e2e test

test/images/fakegitserver/Dockerfile

+# Copyright 2016 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.
+
+FROM scratch
+ADD GITHASH.txt /
+ADD gitserver /
+ENTRYPOINT ["/gitserver"]

test/images/fakegitserver/Makefile

+.PHONY:	all image push clean
+
+TAG = 0.1
+PREFIX = gcr.io/google_containers
+IMAGE = fakegitserver
+ARCH = amd64
+
+image:
+	./prepare.sh $(ARCH)
+	docker build -t $(PREFIX)/$(IMAGE):$(TAG) .
+
+push: image
+	gcloud docker push $(PREFIX)/$(IMAGE):$(TAG)
+
+all: push
+
+clean:
+	rm -f gitserver GITHASH.txt

test/images/fakegitserver/gitserver.go

+/*
+Copyright 2016 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.
+*/
+
+package main
+
+import (
+	"io"
+	"net/http"
+)
+
+func hello(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "I am a fake git server")
+
+}
+
+// When doing `git clone localhost:8000`, you will clone an empty git repo named "8000" on local.
+// You can also use `git clone localhost:8000 my-repo-name` to rename that repo.
+func main() {
+	http.HandleFunc("/", hello)
+	http.ListenAndServe(":8000", nil)
+}

test/images/fakegitserver/prepare.sh

+#!/bin/bash
+
+# Copyright 2016 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.
+
+set -e
+set -x
+
+ARCH=$1
+
+# Build the binary.
+CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH} go build -a -installsuffix cgo -ldflags '-w' ./gitserver.go
+
+# Write down the current commit hash.
+echo $(git rev-parse HEAD) >> GITHASH.txt