openstack-ansible/scripts/run-aio-build.sh
Toby Oxborrow 05f10294e6 Redirect "apt-get install -y" stdin to /dev/null
According to debian bug 728775 [1] apt-get by design will consume stdin
(even when not run interactively).

When the run-aio-build.sh script is used as part of a curl-pipe-bash
such as described in the quick start docs [2] apt-get will effectively
halt execution of the script after installing git. The next time the
script is run it will get past the step because git is now installed and
apt-get no longer consumes stdin. In addition to run-aio-build.sh,
bootstrap-aio.sh and bootstrap-ansible.sh call apt-get and so exhibit
the same behaviour when called by run-aio-build.sh when used as part of
a curl-pipe-bash.

In addition to apt-get install -y, apt-get purge -y exhibits the same
behaviour.

The result for the end user is they must run the command multiple times
to get it to work.

Using the bash method to close stdin (0<&- [3]) causes apt-get to print
out "E: Write error - write (14: Bad address)" and fail. The solution is
to explicitly set stdin to nothing, such as "echo '' | apt-get ..." or
"apt-get ... < /dev/null". The latter is chosen for its aesthetics.

yum install -y does not exhibit this behaviour and so does not require
its stdin redirected.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=728775
[2] http://docs.openstack.org/developer/openstack-ansible/developer-docs/quickstart-aio.html#running-an-aio-build-in-one-step
[3] http://www.tldp.org/LDP/abs/html/io-redirection.html

Change-Id: I57484590e257956e1d1bc8e10ce8a35207622672
Closes-Bug: 1504546
2015-10-09 21:42:56 +08:00

74 lines
2.6 KiB
Bash
Executable File

#!/usr/bin/env bash
# Copyright 2014, Rackspace US, Inc.
#
# 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.
## Shell Opts ----------------------------------------------------------------
set -e -u +x
## Variables -----------------------------------------------------------------
export REPO_URL=${REPO_URL:-"https://github.com/openstack/openstack-ansible.git"}
export REPO_BRANCH=${REPO_BRANCH:-"master"}
export WORKING_FOLDER=${WORKING_FOLDER:-"/opt/openstack-ansible"}
## Main ----------------------------------------------------------------------
# set verbosity
set -x
# install git so that we can fetch the repo
# note: the redirect of stdin to /dev/null is necessary for when this script is
# run as part of a curl-pipe-shell. otherwise apt-get will consume the rest of
# this file as if it was its own stdin (despite using -y to skip interaction).
apt-get update && apt-get install -y git < /dev/null
# fetch the repo
git clone -b ${REPO_BRANCH} ${REPO_URL} ${WORKING_FOLDER}
# change into the expected root directory
cd ${WORKING_FOLDER}
# first, bootstrap the AIO host
source scripts/bootstrap-aio.sh
# next, bootstrap Ansible
source scripts/bootstrap-ansible.sh
# finally, run all the playbooks
bash scripts/run-playbooks.sh
# put a motd in place to help the user know what stuff is accessible once the build is complete
cat > /etc/update-motd.d/20-openstack<< EOF
#!/usr/bin/env bash
echo ""
echo "############ openstack-ansible all-in-one build #############"
echo ""
echo " OpenStack Services are now listening on $(ip -o -4 addr show dev eth0 | awk -F '[ /]+' '/global/ {print $4}')"
echo ""
EOF
chmod +x /etc/update-motd.d/20-openstack
# put an motd in place to help the user know how to restart galera after reboot
cat > /etc/update-motd.d/21-galera<< EOF
#!/usr/bin/env bash
echo ""
echo "If this server has been rebooted, you will need to re-bootstrap"
echo "Galera to get the cluster operational. To do this execute:"
echo ""
echo "This requires you to identify the most advanced node. For details see http://galeracluster.com/documentation-webpages/quorumreset.html
echo ""
EOF
chmod +x /etc/update-motd.d/21-galera