Add e2e test. (#353)

Signed-off-by: Lantao Liu <lantaol@google.com>

test/configure.sh

@@ -0,0 +1,87 @@
+#!/bin/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 xtrace
+set -o errexit
+set -o nounset
+set -o pipefail
+
+# CRI_CONTAINERD_HOME is the directory for cri-containerd.
+CRI_CONTAINERD_HOME="/home/cri-containerd"
+cd "${CRI_CONTAINERD_HOME}"
+
+# fetch_metadata fetches metadata from GCE metadata server.
+# Var set:
+# 1. Metadata key: key of the metadata.
+fetch_metadata() {
+  local -r key=$1
+  local -r attributes="http://metadata.google.internal/computeMetadata/v1/instance/attributes"
+  if curl --fail --retry 5 --retry-delay 3 --silent --show-error -H "X-Google-Metadata-Request: True" "${attributes}/" | \
+    grep -q "${key}"; then
+    curl --fail --retry 5 --retry-delay 3 --silent --show-error -H "X-Google-Metadata-Request: True" \
+      "${attributes}/${key}"
+  fi
+}
+
+# DEPLOY_PATH is the gcs path where cri-containerd tarball is stored.
+DEPLOY_PATH=${DEPLOY_PATH:-"cri-containerd-staging"}
+# PULL_REFS_METADATA is the metadata key of PULL_REFS from prow.
+PULL_REFS_METADATA="PULL_REFS"
+pull_refs=$(fetch_metadata "${PULL_REFS_METADATA}")
+if [ ! -z "${pull_refs}" ]; then
+  deploy_dir=$(echo "${pull_refs}" | sha1sum | awk '{print $1}') 
+  DEPLOY_PATH="${DEPLOY_PATH}/${deploy_dir}"
+fi
+
+# PKG_PREFIX is the prefix of the cri-containerd tarball name.
+# By default use the release tarball with cni built in.
+PKG_PREFIX=${PKG_PREFIX:-"cri-containerd-cni"}
+# PKG_PREFIX_METADATA is the metadata key of PKG_PREFIX.
+PKG_PREFIX_METADATA="pkg_prefix"
+pkg_prefix=$(fetch_metadata "${PKG_PREFIX_METADATA}")
+if [ ! -z "${pkg_prefix}" ]; then
+  PKG_PREFIX=${pkg_prefix}
+fi
+
+# VERSION is the latest cri-containerd version got from cri-containerd gcs
+# bucket.
+VERSION=$(curl -f --ipv4 --retry 6 --retry-delay 3 --silent --show-error \
+  https://storage.googleapis.com/${DEPLOY_PATH}/latest)
+# TARBALL_GCS_PATH is the path to download cri-containerd tarball for node e2e.
+TARBALL_GCS_PATH="https://storage.googleapis.com/${DEPLOY_PATH}/${PKG_PREFIX}-${VERSION}.tar.gz"
+# TARBALL is the name of the tarball after being downloaded.
+TARBALL="cri-containerd.tar.gz"
+
+# Download and untar the release tar ball.
+curl -f --ipv4 -Lo "${TARBALL}" --connect-timeout 20 --max-time 300 --retry 6 --retry-delay 10 "${TARBALL_GCS_PATH}"
+tar xvf "${TARBALL}"
+
+# TODO(random-liu): Stop docker on the node, this may break docker.
+echo "export PATH=${CRI_CONTAINERD_HOME}/usr/local/bin/:${CRI_CONTAINERD_HOME}/usr/local/sbin/:\$PATH" > \
+  /etc/profile.d/cri-containerd_env.sh
+
+# EXTRA_INIT_SCRIPT is the name of the extra init script after being downloaded.
+EXTRA_INIT_SCRIPT="extra-init.sh"
+# EXTRA_INIT_SCRIPT_METADATA is the metadata key of init script.
+EXTRA_INIT_SCRIPT_METADATA="extra-init-sh"
+extra_init=$(fetch_metadata "${EXTRA_INIT_SCRIPT_METADATA}")
+# Return if extra-init-sh is not set.
+if [ -z "${extra_init}" ]; then
+  exit 0
+fi
+echo "${extra_init}" > "${EXTRA_INIT_SCRIPT}"
+chmod 544 "${EXTRA_INIT_SCRIPT}"
+./${EXTRA_INIT_SCRIPT}