zulip/scripts/setup/upgrade-postgresql

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#!/usr/bin/env bash
set -eo pipefail
if [ "$EUID" -ne 0 ]; then
echo "Error: This script must be run as root" >&2
exit 1
fi
# Force a known locale; some OS X terminals set an invalid LC_CTYPE
# which crashes pg_upgradecluster
export LC_ALL=C.UTF-8
export LANG=C.UTF-8
export LANGUAGE=C.UTF-8
UPGRADE_TO=${1:-14}
UPGRADE_FROM=$(crudini --get /etc/zulip/zulip.conf postgresql version)
ZULIP_PATH="$(dirname "$0")/../.."
if [ "$UPGRADE_TO" = "$UPGRADE_FROM" ]; then
echo "Already running PostgreSQL $UPGRADE_TO!"
exit 1
fi
set -x
"$ZULIP_PATH"/scripts/lib/setup-apt-repo
apt-get install -y "postgresql-$UPGRADE_TO" "postgresql-client-$UPGRADE_TO"
drop_main_cluster="$(
pg_lsclusters --json \
| jq --arg pg_version "$UPGRADE_TO" -r \
'.[] | select((.version|tostring == $ARGS.named.pg_version) and (.cluster == "main")) | .cluster'
)"
if [ -n "$drop_main_cluster" ]; then
pg_dropcluster "$UPGRADE_TO" main --stop
fi
(
# Two-stage application of Puppet; we apply the bare-bones
# PostgreSQL configuration first, so that FTS will be configured
# prior to the pg_upgradecluster.
TEMP_CONF_DIR=$(mktemp -d)
cp /etc/zulip/zulip.conf "$TEMP_CONF_DIR"
ZULIP_CONF="${TEMP_CONF_DIR}/zulip.conf"
crudini --set "$ZULIP_CONF" postgresql version "$UPGRADE_TO"
crudini --set "$ZULIP_CONF" machine puppet_classes zulip::profile::base,zulip::postgresql_base
touch "/usr/share/postgresql/$UPGRADE_TO/pgroonga_setup.sql.applied"
FACTER_LEAVE_SUPERVISOR=true "$ZULIP_PATH"/scripts/zulip-puppet-apply -f --config "$ZULIP_CONF"
rm -rf "$TEMP_CONF_DIR"
)
# Capture the output so we know where the path to the post-upgrade scripts is
UPGRADE_LOG=$(mktemp "/var/log/zulip/upgrade-postgresql-$UPGRADE_FROM-$UPGRADE_TO.XXXXXXXXX.log")
pg_upgradecluster -v "$UPGRADE_TO" "$UPGRADE_FROM" main --method=upgrade --link | tee "$UPGRADE_LOG"
SCRIPTS_PATH=$(grep -o "/var/log/postgresql/pg_upgradecluster-$UPGRADE_FROM-$UPGRADE_TO-main.*" "$UPGRADE_LOG" || true)
# If the upgrade completed successfully, lock in the new version in
# our configuration immediately
crudini --set /etc/zulip/zulip.conf postgresql version "$UPGRADE_TO"
# Make sure the new PostgreSQL is running
start_main_cluster="$(
pg_lsclusters --json \
| jq --arg pg_version "$UPGRADE_TO" -r \
'.[] | select((.version|tostring == $ARGS.named.pg_version) and (.cluster == "main") and (.running != 1)) | .cluster'
)"
if [ -n "$start_main_cluster" ]; then
pg_ctlcluster "$UPGRADE_TO" main start
fi
# Update the statistics
su postgres -c "/usr/lib/postgresql/$UPGRADE_TO/bin/vacuumdb --all --analyze-only --jobs 10"
# Start the database up cleanly
"$ZULIP_PATH"/scripts/zulip-puppet-apply -f
# Drop the old data, binaries, and scripts
pg_dropcluster "$UPGRADE_FROM" main
apt remove -y "postgresql-$UPGRADE_FROM"
if [ -n "$SCRIPTS_PATH" ]; then
if [ -f "$SCRIPTS_PATH/update_extensions.sql" ]; then
su postgres -c "psql $SCRIPTS_PATH/update_extensions.sql"
fi
su postgres -c "$SCRIPTS_PATH/delete_old_cluster.sh"
rm -rf "$SCRIPTS_PATH"
else
set +x
echo
echo
echo ">>>>> pg_upgradecluster succeeded, but post-upgrade scripts path could not"
echo " be parsed out! Please read the pg_upgradecluster output to understand"
echo " the current status of your cluster:"
echo " $UPGRADE_LOG"
echo " and report this bug with the PostgreSQL $UPGRADE_FROM -> $UPGRADE_TO upgrade to:"
echo " https://github.com/zulip/zulip/issues"
echo
echo
fi