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scripts-admin-quickndirty-p.../sauvegarde_postgresql.sh

35 lines
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Bash
Executable file

#!/bin/bash
# Configuration
# Le fichier sera nommé BASE_DIR/PREFIXEbasenameSUFFIXE
BASE_DIR="/var/backups/postgresql"
PREFIXE="sauv_pgsql"
SUFFIXE=_$( date +%Y%m%d-%H%M ).sql.gz
DUREE_DE_VIE=5
# Exit at first error
# note : check that you receive crontab's mails in case something goes wrong.
set -e
if [ -n "$BASH" ]; then
# Bash required for this. If not available, return code will be 0
# even if pg_dumpall fails (but usually it write something on stderr
# so cron will send a mail nevertheless).
set -o pipefail
fi
# Initial checks
if [ ! -d "$BASE_DIR" ]; then
echo "ERREUR : répertoire de sauvegarde inexistant : $BASE_DIR ." >&2
exit 1
fi
# Backup of the whole default cluster
su -l -c pg_dumpall postgres | gzip -c > "$BASE_DIR/$PREFIXE$SUFFIXE"
# Deletion of old backups
if [ "$1" = "--delete-olds" ]; then
find $BASE_DIR -name "$PREFIXE*" -mtime +$DUREE_DE_VIE -print0 | xargs -n 200 -r -0 rm -f
fi