Add Jenkins e2e script

This commit adds and documents the e2e script that Jenkins runs

hack/jenkins/e2e.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+
+# Copyright 2015 Google Inc. 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.
+
+# kubernetes-e2e-{gce, gke, gke-ci} jobs: This script is triggered by
+# the kubernetes-build job, or runs every half hour. We abort this job
+# if it takes more than 75m. As of initial commit, it typically runs
+# in about half an hour.
+#
+# The "Workspace Cleanup Plugin" is installed and in use for this job,
+# so the ${WORKSPACE} directory (the current directory) is currently
+# empty.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+set -o xtrace
+
+if [[ $(find . | wc -l) != 1 ]]; then
+    echo $PWD not empty, bailing!
+    exit 1
+fi
+
+# Unlike the kubernetes-build script, we expect some environment
+# variables to be set. We echo these immediately and presume "set -o
+# nounset" will force the caller to set them: (The first several are
+# Jenkins variables.)
+
+echo "JOB_NAME: ${JOB_NAME}"
+echo "BUILD_NUMBER: ${BUILD_NUMBER}"
+echo "WORKSPACE: ${WORKSPACE}"
+echo "KUBERNETES_PROVIDER: ${KUBERNETES_PROVIDER}" # Cloud provider
+echo "E2E_CLUSTER_NAME: ${E2E_CLUSTER_NAME}"       # Name of the cluster (e.g. "e2e-test-jenkins")
+echo "E2E_NETWORK: ${E2E_NETWORK}"                 # Name of the network (e.g. "e2e")
+echo "E2E_ZONE: ${E2E_ZONE}"                       # Name of the GCE zone (e.g. "us-central1-f")
+echo "E2E_OPT: ${E2E_OPT}"                         # hack/e2e.go options
+echo "--------------------------------------------------------------------------------"
+
+# GCE variables
+export INSTANCE_PREFIX=${E2E_CLUSTER_NAME}
+export KUBE_GCE_ZONE=${E2E_ZONE}
+export KUBE_GCE_NETWORK=${E2E_NETWORK}
+
+# GKE variables
+export CLUSTER_NAME=${E2E_CLUSTER_NAME}
+export ZONE=${E2E_ZONE}
+export KUBE_GKE_NETWORK=${E2E_NETWORK}
+
+export PATH=${PATH}:/usr/local/go/bin
+export HOME=${WORKSPACE} # Nothing should want Jenkins $HOME
+export KUBE_SKIP_CONFIRMATIONS=y
+
+# sudo gcloud components update -q
+
+GITHASH=$(gsutil cat gs://kubernetes-release/ci/latest.txt)
+gsutil -m cp gs://kubernetes-release/ci/${GITHASH}/kubernetes.tar.gz gs://kubernetes-release/ci/${GITHASH}/kubernetes-test.tar.gz .
+md5sum kubernetes*.tar.gz
+tar -xzf kubernetes.tar.gz
+tar -xzf kubernetes-test.tar.gz
+cd kubernetes
+
+# This variable is only relevant on GKE-CI
+export CLUSTER_API_VERSION=$(echo ${GITHASH} | cut -c 2-)
+
+go run ./hack/e2e.go ${E2E_OPT} -v -down
+go run ./hack/e2e.go ${E2E_OPT} -v -up
+go run ./hack/e2e.go -v -ctl="version --match-server-version=false"
+go run ./hack/e2e.go ${E2E_OPT} --test -tap | tee ../e2e.${JOB_NAME}.${BUILD_NUMBER}.${GITHASH}.tap
+go run ./hack/e2e.go ${E2E_OPT} -v -down