[type/__postgres_conf] Restart PostgreSQL server based on pending_restart column of pg_settings

This commit is contained in:
Dennis Camera 2021-01-19 16:37:43 +01:00
parent 5051d4f40b
commit 0f2ff47738
2 changed files with 6 additions and 53 deletions

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@ -1,43 +0,0 @@
#!/bin/sh -e
# -*- mode: sh; indent-tabs-mode: t -*-
#
# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
# Returns the "context" of the configuration setting.
# cf. also https://www.postgresql.org/docs/10/view-pg-settings.html
os=$("${__explorer:?}/os")
case ${os}
in
(openbsd)
postgres_user='_postgresql'
;;
(devuan)
postgres_user='postgres'
;;
(*)
echo "Unsupported OS: ${os}" >&2
exit 1
;;
esac
conf_name=${__object_id:?}
# NOTE: SHOW/SET are case-insentitive, so this command should also be.
su - "${postgres_user}" -c "psql postgres -twAc \"SELECT context FROM pg_settings WHERE lower(name) = lower('${conf_name}')\""

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@ -98,15 +98,11 @@ in
;;
esac
# check success (makes only sense if setting to a non-default value)
# and restart server if needed
if test "${state_should}" = 'present'
then
cat <<-EOF
# Restart PostgreSQL server if required to apply new configuration value
cat <<EOF
$(psql_cmd postgres -twAc "SHOW ${conf_name}") \\
| cmp -s "\${__object:?}/parameter/value" - || {
if test 't' = "\$($(psql_cmd postgres -twAc "SELECT pending_restart FROM pg_settings WHERE lower(name) = lower('${conf_name}')"))"
then
${restart_command}
}
EOF
fi
EOF