Separate interop images and interop_stress images
diff --git a/tools/jenkins/build_interop_stress_image.sh b/tools/jenkins/build_interop_stress_image.sh
new file mode 100755
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+++ b/tools/jenkins/build_interop_stress_image.sh
@@ -0,0 +1,86 @@
+#!/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
+
+# 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
+# BUILD_INTEROP_DOCKER_EXTRA_ARGS - optional args to be passed to the
+# docker run command
+
+cd `dirname $0`/../..
+GRPC_ROOT=`pwd`
+MOUNT_ARGS="-v $GRPC_ROOT:/var/local/jenkins/grpc:ro"
+
+mkdir -p /tmp/ccache
+
+# Mount service account dir if available.
+# If service_directory does not contain the service account JSON file,
+# some of the tests will fail.
+if [ -e $HOME/service_account ]
+then
+ MOUNT_ARGS+=" -v $HOME/service_account:/var/local/jenkins/service_account:ro"
+fi
+
+# Use image name based on Dockerfile checksum
+BASE_IMAGE=${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 $?
+
+# Create a local branch so the child Docker script won't complain
+git branch -f jenkins-docker
+
+CONTAINER_NAME="build_${BASE_NAME}_$(uuidgen)"
+
+# Prepare image for interop tests, commit it on success.
+(docker run \
+ -e CCACHE_DIR=/tmp/ccache \
+ -e THIS_IS_REALLY_NEEDED='see https://github.com/docker/docker/issues/14203 for why docker is awful' \
+ -i $TTY_FLAG \
+ $MOUNT_ARGS \
+ $BUILD_INTEROP_DOCKER_EXTRA_ARGS \
+ -v /tmp/ccache:/tmp/ccache \
+ --name=$CONTAINER_NAME \
+ $BASE_IMAGE \
+ bash -l /var/local/jenkins/grpc/tools/jenkins/$BASE_NAME/build_interop_stress.sh \
+ && docker commit $CONTAINER_NAME $INTEROP_IMAGE \
+ && echo "Successfully built image $INTEROP_IMAGE")
+EXITCODE=$?
+
+# remove intermediate container, possibly killing it first
+docker rm -f $CONTAINER_NAME
+
+exit $EXITCODE