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diff --git a/tools/jenkins/build_interop_image.sh b/tools/jenkins/build_interop_image.sh
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+++ b/tools/jenkins/build_interop_image.sh
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+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# This script is invoked by run_interop_tests.py to build the docker image
+# for interop testing. You should never need to call this script on your own.
+
+set -x
+
+cd `dirname $0`/../..
+GRPC_ROOT=`pwd`
+MOUNT_ARGS="-v $GRPC_ROOT:/var/local/jenkins/grpc"
+
+GRPC_JAVA_ROOT=`cd ../grpc-java && pwd`
+if [ "$GRPC_JAVA_ROOT" != "" ]
+then
+  MOUNT_ARGS+=" -v $GRPC_JAVA_ROOT:/var/local/jenkins/grpc-java"
+else
+  echo "WARNING: grpc-java not found, it won't be mounted to the docker container."
+fi
+
+GRPC_GO_ROOT=`cd ../grpc-go && pwd`
+if [ "$GRPC_GO_ROOT" != "" ]
+then
+  MOUNT_ARGS+=" -v $GRPC_GO_ROOT:/var/local/jenkins/grpc-go"
+else
+  echo "WARNING: grpc-go not found, it won't be mounted to the docker container."
+fi
+
+mkdir -p /tmp/ccache
+
+# Params:
+#  INTEROP_IMAGE - name of tag of the final interop image
+#  BASE_NAME - base name used to locate the base Dockerfile and build script
+#  TTY_FLAG - optional -t flag to make docker allocate tty.
+
+# Use image name based on Dockerfile checksum
+BASE_IMAGE=${BASE_NAME}_base:`sha1sum tools/jenkins/$BASE_NAME/Dockerfile | cut -f1 -d\ `
+
+# Make sure base docker image has been built. Should be instantaneous if so.
+docker build -t $BASE_IMAGE --force-rm=true tools/jenkins/$BASE_NAME || exit $?
+
+# Create a local branch so the child Docker script won't complain
+git branch -f jenkins-docker
+
+CIDFILE=`mktemp -u --suffix=.cid`
+
+# Prepare image for interop tests, commit it on success.
+(docker run \
+  -e CCACHE_DIR=/tmp/ccache \
+  -i $TTY_FLAG \
+  $MOUNT_ARGS \
+  -v /tmp/ccache:/tmp/ccache \
+  --cidfile=$CIDFILE \
+  $BASE_IMAGE \
+  bash -l /var/local/jenkins/grpc/tools/jenkins/$BASE_NAME/build_interop.sh \
+  && docker commit `cat $CIDFILE` $INTEROP_IMAGE \
+  && echo "Successfully built image $INTEROP_IMAGE")
+EXITCODE=$?
+
+# remove intermediate container, possibly killing it first
+docker rm -f `cat $CIDFILE`
+
+# remove the cidfile
+rm -rf `cat $CIDFILE`
+
+exit $EXITCODE