ironic-python-agent/imagebuild/coreos/docker_build.bash

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#!/bin/bash
#
# docker_build.bash - Prepares and outputs a tarball'd docker repository
# suitable for injection into a coreos pxe image
#
set -e
OUTPUT_FILE="oem/container.tar.gz"
# If there's already a container.tar.gz, don't overwrite it -- instead, bail
if [[ -e "${OUTPUT_FILE}" ]]; then
echo "${OUTPUT_FILE} already exists. Will not overwrite. Exiting."
exit 1
fi
# Build the docker image
cd ../../
# TODO(jlvilla): Once Docker 1.9 is widely deployed, switch to using the 'ARG'
# command which was added in Docker 1.9. Currently Ubuntu 14.04 uses Docker
# 1.6. Using the ARG command will be a much cleaner solution.
mv proxy.sh .proxy.sh.save || true
# Create a temporary proxy.sh script, that will be used by the Dockerfile.
# Since we are calling 'docker build' we can not use --env-file/--env as those
# are arguments to 'docker run'
echo '#!/bin/sh' > proxy.sh
echo 'echo Running: $*' >> proxy.sh
echo "http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} no_proxy=${no_proxy:-} "'$*' >> proxy.sh
chmod 0755 proxy.sh
docker build -t oemdocker .
# Restore saved copy
mv .proxy.sh.save proxy.sh || true
cd -
# Create a UUID to identify the build
CONTAINER_UUID=`uuidgen`
# Export the oemdocker repository to a tarball so it can be embedded in CoreOS
# TODO: Investigate running a container and using "export" to flatten the
# image to shrink the CoreOS fs size. This will also require run.sh to
# use docker import instead of docker load as well.
docker run oemdocker echo $CONTAINER_UUID
CONTAINER=`docker ps -a --no-trunc |grep $CONTAINER_UUID|awk '{print $1}'|head -n1`
echo $CONTAINER
docker export $CONTAINER | gzip > ${OUTPUT_FILE}