Add linux KVM integration tests, wait in StartStop

The KVM driver has trouble starting and stopping immediately.  This
happens with docker-machine also.

hack/jenkins/linux_integration_tests_kvm.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.
+
+
+# This script runs the integration tests on a Linux machine for the KVM Driver
+
+# The script expects the following env variabls:
+# MINIKUBE_LOCATION: GIT_COMMIT from upstream build.
+# COMMIT: Actual commit ID from upstream build
+# EXTRA_BUILD_ARGS (optional): Extra args to be passed into the minikube integrations tests
+# access_token: The Github API access token. Injected by the Jenkins credential provider. 
+
+set -e
+
+# Copy only the files we need to this workspace
+mkdir -p out/
+gsutil cp gs://minikube-builds/${MINIKUBE_LOCATION}/minikube-linux-amd64 out/
+gsutil cp gs://minikube-builds/${MINIKUBE_LOCATION}/e2e-linux-amd64 out/
+gsutil cp -r gs://minikube-builds/${MINIKUBE_LOCATION}/testdata .
+
+chmod +x out/e2e-linux-amd64
+chmod +x out/minikube-linux-amd64
+
+MINIKUBE_WANTREPORTERRORPROMPT=False \
+	./out/minikube-linux-amd64 delete || true
+    
+rm -rf $HOME/.minikube || true
+
+# Allow this to fail, we'll switch on the return code below.
+set +e
+out/e2e-linux-amd64 -minikube-args="--vm-driver=kvm --cpus=4 --show-libmachine-logs --v=100 ${EXTRA_BUILD_ARGS}" -test.v -test.timeout=30m -binary=out/minikube-linux-amd64
+result=$?
+set -e
+
+if [[ $result -eq 0 ]]; then
+  status="success"
+else
+  status="failure"
+fi
+
+set +x
+target_url="https://storage.googleapis.com/minikube-builds/logs/${MINIKUBE_LOCATION}/Linux-KVM.txt"
+curl "https://api.github.com/repos/kubernetes/minikube/statuses/${COMMIT}?access_token=$access_token" \
+  -H "Content-Type: application/json" \
+  -X POST \
+  -d "{\"state\": \"$status\", \"description\": \"Jenkins\", \"target_url\": \"$target_url\", \"context\": \"Linux-KVM\"}"
+set -x
+
+exit $result

hack/jenkins/minikube_set_pending.sh

@@ -27,7 +27,7 @@
 set -e
 set +x
 
-for job in "OSX-Virtualbox" "OSX-XHyve" "OSX-Virtualbox-SystemD" "Linux-Virtualbox"; do
+for job in "OSX-Virtualbox" "OSX-XHyve" "OSX-Virtualbox-SystemD" "Linux-Virtualbox" "Linux-KVM"; do
   target_url="https://storage.googleapis.com/minikube-builds/logs/${ghprbPullId}/${job}.txt"
   curl "https://api.github.com/repos/kubernetes/minikube/statuses/${ghprbActualCommit}?access_token=$access_token" \
     -H "Content-Type: application/json" \

test/integration/start_stop_delete_test.go

@@ -22,6 +22,7 @@ import (
 	"net"
 	"strings"
 	"testing"
+	"time"
 
 	"k8s.io/minikube/test/integration/util"
 )
@@ -44,6 +45,10 @@ func TestStartStop(t *testing.T) {
 		t.Fatalf("IP command returned an invalid address: %s", ip)
 	}
 
+	// TODO:r2d4 The KVM driver can't handle
+	// starting and stopping immediately
+	time.Sleep(30 * time.Second)
+
 	runner.RunCommand("stop", true)
 	runner.CheckStatus("Stopped")