Add GCE DinD based CI test job for IPv6

This change adds a CI test job for testing Kubernetes IPv6-only functionality.
This CI test uses deployment scripts from the Mirantis/kubeadm-dind-cluster
github repo to set up a containerized (Docker-in-Docker) Kubernetes
cluster that is running on a GCE instance. (A containerized environment
is needed because GCE does not support IPv6 connectivity between GCE
instances.

Note that when the kubeadm-dind-cluster scripts are used to spin up
a Kubernetes cluster in IPv6 mode, it will create the following
container on the GCE instance:
- bind9 container that performs DNS64 functionality
- tayga container that performs NAT64 functionality
- kube-master node container
- kube-node-1 node container
- kube-node-2 node container

NOTE: Unit tests for gce_dind.go will be coming shortly.

images/gce-dind/Dockerfile

@@ -0,0 +1,38 @@
+# Copyright 2018 The Kubernetes Authors.
+#
+# 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 gcr.io/k8s-testimages/kubekins-e2e:v20180102-0e2b24a0b-master
+LABEL maintainer "leblancd@cisco.com"
+
+# add env we can debug with the image name:tag
+ARG IMAGE_ARG
+ENV IMAGE=${IMAGE_ARG}
+
+RUN apt-get update && apt-get install -y \
+    git \
+    wget \
+    liblz4-1 && \
+    apt-get clean
+
+# Install kubeadm-dind-cluster scripts
+RUN cd /root && \
+    git clone -b k8s_ipv6_ci https://github.com/leblancd/kubeadm-dind-cluster.git
+
+# Install docker-machine
+RUN curl -L https://github.com/docker/machine/releases/download/v0.13.0/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine && install /tmp/docker-machine /usr/local/bin/docker-machine
+
+ENV SHELL bash
+WORKDIR /workspace
+ADD runner /
+ENTRYPOINT ["/bin/bash", "/runner"]

images/gce-dind/Makefile

@@ -0,0 +1,25 @@
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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.
+
+VERSION = $(shell date +v%Y%m%d)-$(shell git describe --tags --always --dirty)
+
+IMG = "gcr.io/k8s-testimages/e2e-gce-dind"
+
+image:
+	docker build --no-cache -t "$(IMG):$(VERSION)" --build-arg "IMAGE_ARG=$(IMG):$(VERSION)" .
+
+push: image
+	gcloud docker -- push "$(IMG):$(VERSION)"
+
+.PHONY: image push

images/gce-dind/runner

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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 -o errexit
+set -o nounset
+set -o pipefail
+
+if [ ! -e test-infra ]; then
+  git clone https://github.com/kubernetes/test-infra
+fi
+
+./test-infra/jenkins/bootstrap.py \
+    --job="${JOB_NAME}" \
+    --service-account="${GOOGLE_APPLICATION_CREDENTIALS}" \
+    "$@"

jobs/config.json

@@ -11500,6 +11500,29 @@
       "sig-cluster-lifecycle"
     ]
   },
+  "pull-kubernetes-e2e-gce-dind-ipv6": {
+    "args": [
+      "--cluster=",
+      "--deployment=gce-dind",
+      "--env-file=jobs/platform/gce.env",
+      "--gcp-zone=us-central1-f",
+      "--ginkgo-parallel=30",
+      "--gce-dind-scripts-path=/root/kubeadm-dind-cluster",
+      "--gce-dind-image=rpothier/kubeadm-dind-cluster:k8s-1.10",
+      "--gce-dind-build-kubeadm=true",
+      "--gce-dind-build-hyperkube=true",
+      "--gce-dind-ipv6-only=true",
+      "--gce-dind-num-nodes=2",
+      "--gce-dind-dump-cluster-logs=true",
+      "--provider=gce",
+      "--test_args=--ginkgo.focus=Networking|Services --ginkgo.skip=IPv4|Networking-Performance|Federation|preserve\ssource\spod|session\saffinity:\sudp|functioning\sNodePort --num-nodes=2 --minStartupPods=8",
+      "--timeout=55m"
+    ],
+    "scenario": "kubernetes_e2e",
+    "sigOwners": [
+      "sig-network"
+    ]
+  },
   "pull-kubernetes-integration": {
     "args": [
       "--branch=${PULL_BASE_REF}",