openstack-ansible/scripts/run-upgrade.sh
Jesse Pretorius 3fb15ad780 Clean-up and simplify the major upgrade
The major upgrade procedure has been collecting new bits over time,
but has not really had bits cleaned out of it when unnecessary. Some
parts have also never been used.

This patch does the following:

1.  Consolidates the basic deploy node changes into a single playbook
    which is tagged, and therefore easy to run stand alone and use
    with skip-tags if necessary.
2.  Removes the ceph-galaxy-removal playbook which was for the P->Q
    upgrade only.
3.  Removes the ansible_fact_cleanup playbook and script - the first
    ran the second which was a bit pointless, given it could be done
    in a playbook task instead. This has been rolled into the
    deploy-config-changes playbook.
4.  Removes the memcached-flush playbook which was only actually
    required for the N->O upgrade. The functionality to enable the
    flush more surgically was enabled via a var in the keystone role
    in [a], so that can be used in the future if need be.
5.  Consolidates user-secrets-adjustment into the
    deploy-config-changes playbook, and also removes the var renames
    which were only appropriate for the Q->R upgrade.
6.  Removes the make_rst_table, migrate_openstack_vars and
    test_migrate_openstack_vars scripts which do not ever appear to
    have been used.
7.  Changes the limited playbook run for galera_all/rabbitmq_all from
    only doing lxc-containers-create.yml to all of setup_hosts to
    ensure that any hosts missed out in the previous step is handled
    in that step. This is useful if rabbitmq/galera are installed on
    hosts instead of in containers.
8.  Removed the extra backup of the /etc/openstack_deploy directory
    given that it is already archived by the run-upgrade script.
9.  Made the backup of the OSA configuration done in run-upgrade
    idempotent.
10. Removes the reference content for upgrades, given that most of
    it is duplicated and the simplified structure negates the need
    for a reference guide.
11. Change the infrastructure part of the upgrade to be simpler,
    and use the setup-infrastructure playbook.

[a] https://review.openstack.org/#/q/topic:bug/1793389
Related-Bug: #1808041
Change-Id: I58732dc181ee985364e97aa890987a98544ed06c
2019-01-23 10:45:09 +00:00

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#!/usr/bin/env bash
# Copyright 2015, 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.
# NOTICE: To run this in an automated fashion run the script via
# root@HOSTNAME:/opt/openstack-ansible# echo "YES" | bash scripts/run-upgrade.sh
## Shell Opts ----------------------------------------------------------------
set -e -u
## Vars ----------------------------------------------------------------------
# The path from which this script is being run
export SCRIPTS_PATH="$(dirname "$(readlink -f "${0}")")"
# The git checkout root path
export MAIN_PATH="$(dirname "${SCRIPTS_PATH}")"
# The expected source series name
export SOURCE_SERIES="rocky"
# The expected target series name
export TARGET_SERIES="stein"
## Functions -----------------------------------------------------------------
function run_lock {
set +e
run_item="${RUN_TASKS[$1]}"
file_part="${run_item}"
# note(sigmavirus24): this handles tasks like:
# "-e 'rabbitmq_upgrade=true' setup-infrastructure.yml"
# "/tmp/fix_container_interfaces.yml || true"
# so we can get the appropriate basename for the upgrade_marker
for part in $run_item; do
if [[ "$part" == *.yml ]];then
file_part="$part"
break
fi
done
if [ ! -d "/etc/openstack_deploy/upgrade-${TARGET_SERIES}" ]; then
mkdir -p "/etc/openstack_deploy/upgrade-${TARGET_SERIES}"
fi
upgrade_marker_file=$(basename ${file_part} .yml)
upgrade_marker="/etc/openstack_deploy/upgrade-${TARGET_SERIES}/$upgrade_marker_file.complete"
if [ ! -f "$upgrade_marker" ];then
# note(sigmavirus24): use eval so that we properly turn strings like
# "/tmp/fix_container_interfaces.yml || true"
# into a command, otherwise we'll get an error that there's no playbook
# named ||
eval "openstack-ansible $2"
playbook_status="$?"
echo "ran $run_item"
if [ "$playbook_status" == "0" ];then
RUN_TASKS=("${RUN_TASKS[@]/$run_item}")
touch "$upgrade_marker"
echo "$run_item has been marked as success"
else
echo "******************** failure ********************"
echo "The upgrade script has encountered a failure."
echo "Failed on task \"$run_item\""
echo "Re-run the run-upgrade.sh script, or"
echo "execute the remaining tasks manually:"
# NOTE:
# List the remaining, incompleted tasks from the tasks array.
# Using seq to genertate a sequence which starts from the spot
# where previous exception or failures happened.
# run the tasks in order
for item in $(seq $1 $((${#RUN_TASKS[@]} - 1))); do
if [ -n "${RUN_TASKS[$item]}" ]; then
echo "openstack-ansible ${RUN_TASKS[$item]}"
fi
done
echo "******************** failure ********************"
exit 99
fi
else
RUN_TASKS=("${RUN_TASKS[@]/$run_item.*}")
fi
set -e
}
function check_for_current {
if [[ ! -d "/etc/openstack_deploy" ]]; then
echo "--------------ERROR--------------"
echo "/etc/openstack_deploy directory not found."
echo "It appears you do not have a current environment installed."
exit 2
fi
}
function pre_flight {
## Library Check -------------------------------------------------------------
info_block "Checking for required libraries." 2> /dev/null ||
source ${SCRIPTS_PATH}/scripts-library.sh
## Pre-flight Check ----------------------------------------------------------
# Clear the screen and make sure the user understands whats happening.
clear
# Notify the user.
echo -e "
This script will perform a ${SOURCE_SERIES^} to ${TARGET_SERIES^} upgrade.
Once you start the upgrade there is no going back.
Note that the upgrade targets impacting the data
plane as little as possible, but assumes that the
control plane can experience some down time.
This script executes a one-size-fits-all upgrade,
and given that the tests implemented for it are
not monitored as well as those for a greenfield
environment, the results may vary with each release.
Please use it against a test environment with your
configurations to validate whether it suits your
needs and does a suitable upgrade.
Are you ready to perform this upgrade now?
"
# Confirm the user is ready to upgrade.
read -p 'Enter "YES" to continue or anything else to quit: ' UPGRADE
if [ "${UPGRADE}" == "YES" ]; then
echo "Running Upgrade from ${SOURCE_SERIES^} to ${TARGET_SERIES^}"
else
exit 99
fi
}
## Main ----------------------------------------------------------------------
function main {
pre_flight
check_for_current
# Backup source series artifacts
source_series_backup_file="/openstack/backup-openstack-ansible-${SOURCE_SERIES}.tar.gz"
if [[ ! -e ${source_series_backup_file} ]]; then
tar zcf ${source_series_backup_file} /etc/openstack_deploy /etc/ansible/ /usr/local/bin/openstack-ansible.rc
fi
# ANSIBLE_INVENTORY may be set to a previous/incorrect location. To
# ensure this is not the case, we unset the environment variable.
unset ANSIBLE_INVENTORY
"${SCRIPTS_PATH}/bootstrap-ansible.sh"
pushd ${MAIN_PATH}/playbooks
RUN_TASKS+=("${SCRIPTS_PATH}/upgrade-utilities/deploy-config-changes.yml")
# we don't want to trigger container restarts for these groups yet
RUN_TASKS+=("setup-hosts.yml --limit '!galera_all:!rabbitmq_all'")
# add new container config to containers but don't restart
RUN_TASKS+=("setup-hosts.yml -e 'lxc_container_allow_restarts=false' --limit 'galera_all:rabbitmq_all'")
# upgrade infrastructure
RUN_TASKS+=("setup-infrastructure.yml -e 'galera_upgrade=true' -e 'rabbitmq_upgrade=true'")
# explicitly perform controlled galera cluster restart with new lxc config
RUN_TASKS+=("${SCRIPTS_PATH}/upgrade-utilities/galera-cluster-rolling-restart.yml")
# upgrade openstack
RUN_TASKS+=("setup-openstack.yml")
# Run the tasks in order
for item in ${!RUN_TASKS[@]}; do
run_lock $item "${RUN_TASKS[$item]}"
done
popd
}
main