documentation/ansible/roles/postgresql/templates/postgresql-dump-full.sh.j2
2025-05-28 11:31:55 +02:00

93 lines
2.9 KiB
Django/Jinja
Executable File

#!/bin/bash
set -eu
DATE=$(date '+%Y%m%d %H%M%S')
TODAY=$(date '+%Y%m%d')
HOSTNAME=$(hostname -s)
STATUS=0
LOGFILE="/data/log/scripts/postgresql-dump-databases.log"
PGSQL_HOST="localhost"
PGSQL_USER="{{ postgresql_backup_user }}"
COMPRESS=false
touch ${LOGFILE}
#
# Fonctions
#
checkNas()
{
if [ ! -e "${BACKUPDIR}/.mount" ]; then
echo "${BACKUPDIR} not mounted. Backup aborted." | tee -a ${LOGFILE}
exit 1
fi
}
usage()
{
echo "$0 -r <retention> -d <repertoire> -c (compression)"
echo "Exemple : /data/scripts/postgresql-dump-full.sh -r 20 -d /nas -c"
}
#
# Main
#
while getopts "hcr:d:" option
do
case "${option}"
in
r)
RETENTION=${OPTARG};;
d)
BACKUPDIR=${OPTARG};;
c)
COMPRESS=true;;
h | *)
usage
exit 1;;
esac
done
echo "Lancement du dump - Retention : ${RETENTION} - Repertoire : ${BACKUPDIR}" | tee -a ${LOGFILE}
mkdir -p "$BACKUPDIR"/postgresqldump/ | tee -a ${LOGFILE}
find "$BACKUPDIR"/postgresqldump/ -mindepth 1 -maxdepth 1 -type f -daystart -mtime +"${RETENTION}" -delete | tee -a ${LOGFILE}
# Ne marche pas quand le backup tourne sur un replica
#echo "[${DATE}] - Granting superuser to ${PGSQL_USER} user" | tee -a ${LOGFILE}
#/usr/bin/su - postgres -c "psql --command 'ALTER USER ${PGSQL_USER} WITH SUPERUSER'" | tee -a ${LOGFILE}
DB_LIST=$(/usr/bin/su - postgres -c "psql --csv --command 'select datname from pg_catalog.pg_database'")
for db in ${DB_LIST} ; do
if [ ! "$db" = "datname" ] && [ ! "$db" = "template0" ] ; then
echo "[${DATE}] - Dumping database : $db" | tee -a ${LOGFILE}
if [ $COMPRESS = true ] ; then
/usr/bin/pg_dump -Z gzip -f "${BACKUPDIR}"/postgresqldump/"${TODAY}"-"${HOSTNAME}"-"${db}".gz -U "${PGSQL_USER}" -w -h "${PGSQL_HOST}" "${db}" | tee -a ${LOGFILE}
STATUS=${PIPESTATUS[0]}
else
/usr/bin/pg_dump -f "${BACKUPDIR}"/postgresqldump/"${TODAY}"-"${HOSTNAME}"-"${db}".sql -U "${PGSQL_USER}" -w -h "${PGSQL_HOST}" "${db}" | tee -a "${LOGFILE}"
STATUS=${PIPESTATUS[0]}
fi
if [ ! ${STATUS} -eq 0 ]; then
echo "[${DATE}][CRIT] Dump of $db failed" | tee -a ${LOGFILE}
echo "[${DATE}] - Revoking superuser from ${PGSQL_USER} user" | tee -a ${LOGFILE}
/usr/bin/su - postgres -c "psql --command 'ALTER USER ${PGSQL_USER} WITH NOSUPERUSER'" | tee -a ${LOGFILE}
OUTPUT="${OUTPUT} $db"
break
fi
fi
done
# Ne marche pas quand le backup tourne sur un replica
#echo "[${DATE}] - Revoking superuser from ${PGSQL_USER} user" | tee -a ${LOGFILE}
#/usr/bin/su - postgres -c "psql --command 'ALTER USER ${PGSQL_USER} WITH NOSUPERUSER'" | tee -a ${LOGFILE}
STATUS=$?
# output in statusfile for checkmk
echo "$(date +%s)|${STATUS}|Check log file ${LOGFILE}" > /var/tmp/batch."$(basename "$0")"
echo "Fin du dump - Retention : ${RETENTION} - Repertoire : ${BACKUPDIR}" | tee -a ${LOGFILE}