GuillaumeHemmen/docker-mysql-cron-backup
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Create a link to the latest backup

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The symlink is not considered a backup itself and never deleted according to the backup quota
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Manuel 2018-11-08 11:15:00 +01:00 committed by GitHub
parent 4c71297f03
commit bcc8f68f72
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 2 deletions
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7
backup.sh
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@ -11,9 +11,12 @@ do
then then
echo "Dumping database: $db" echo "Dumping database: $db"
FILENAME=/backup/$DATE.$db.sql FILENAME=/backup/$DATE.$db.sql
LATEST=/backup/latest.$db.sql.gz
if mysqldump -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" --databases "$db" $MYSQLDUMP_OPTS > "$FILENAME" if mysqldump -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" --databases "$db" $MYSQLDUMP_OPTS > "$FILENAME"
then then
gzip -f "$FILENAME" gzip -f "$FILENAME"
rm "$LATEST"
ln -s "$FILENAME" "$LATEST"
else else
rm -rf "$FILENAME" rm -rf "$FILENAME"
fi fi
@ -22,9 +25,9 @@ done
if [ -n "$MAX_BACKUPS" ] if [ -n "$MAX_BACKUPS" ]
then then
while [ "$(find /backup -maxdepth 1 -name "*.sql.gz" | wc -l)" -gt "$MAX_BACKUPS" ] while [ "$(find /backup -maxdepth 1 -name "*.sql.gz" -type f | wc -l)" -gt "$MAX_BACKUPS" ]
do do
TARGET=$(find /backup -maxdepth 1 -name "*.sql.gz" | sort | head -n 1) TARGET=$(find /backup -maxdepth 1 -name "*.sql.gz" -type f | sort | head -n 1)
echo "Backup $TARGET is deleted" echo "Backup $TARGET is deleted"
rm -rf "$TARGET" rm -rf "$TARGET"
done done