Rosti/database-backup-image
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Enhance backup script: add default history variable and improve filename formatting
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This commit is contained in:
Adam Štrauch 2025-10-18 23:57:40 +02:00
parent 2ab7be67fa
commit 5b172385ca
Signed by: cx
GPG key ID: 7262DAFE292BCE20
1 changed files with 16 additions and 3 deletions
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19
backup_local.sh
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@ -7,6 +7,7 @@ set -e
# CONTAINER - name of the container where the database is running
# NOTIFY_URL - optional, URL to send notification to
# TARGET_DIR - directory where to store the backup
# HISTORY - number of backups to keep (default: 3)
if [ -z "$CONTAINER" ]; then
echo "CONTAINER environment variable is not set."
@ -18,6 +19,10 @@ if [ -z "$TARGET_DIR" ]; then
exit 1
fi
if [ -z "$HISTORY" ]; then
HISTORY=3
fi
docker info > /dev/null 2>&1
if [ ! $? -eq 0 ]; then
echo "Docker is not available."
@ -33,7 +38,7 @@ fi
echo "Starting backup for container: $CONTAINER"
if [ `docker exec -i $CONTAINER test -e /usr/bin/mariadb-dump && echo "yes" || echo "no"` = "yes" ]; then
DBTYPE="mariadb"
FILENAME=`date +"%Y%m%d_%H%M%S"`_$DBTYPE_$CONTAINER_$DB_NAME.sql.zst
FILENAME=`date +"%Y%m%d_%H%M%S"`_$DBTYPE_$CONTAINER.sql.zst
docker exec -i $CONTAINER mariadb-dump \
--all-databases \
--user=root \
@ -50,8 +55,8 @@ if [ `docker exec -i $CONTAINER test -e /usr/bin/mariadb-dump && echo "yes" || e
mv $TARGET_DIR/$FILENAME.tmp $TARGET_DIR/$FILENAME
elif [ `docker exec -i $CONTAINER test -e /usr/bin/pg_dump && echo "yes" || echo "no"` = "yes" ]; then
DBTYPE="pgsql"
FILENAME=`date +"%Y%m%d_%H%M%S"`_$DBTYPE_$CONTAINER_$DB_NAME.sql.zst
docker exec -i $CONTAINER pg_dump --username=$DB_USER --password=$PGPASSWORD $DB_NAME | zstd -1 > $TARGET_DIR/$FILENAME.tmp
FILENAME=`date +"%Y%m%d_%H%M%S"`_$DBTYPE_$CONTAINER.sql.zst
docker exec -i $CONTAINER pg_dumpall --username=$DB_USER --password=$PGPASSWORD | zstd -1 > $TARGET_DIR/$FILENAME.tmp
mv $TARGET_DIR/$FILENAME.tmp $TARGET_DIR/$FILENAME
else
echo "Unsupported database type or database client not found in the container."
@ -60,6 +65,14 @@ fi
echo "Backup completed successfully."
# Remove old backups
echo "Removing old backups, keeping last $HISTORY backups..."
cd $TARGET_DIR
ls -1t *_$DBTYPE_$CONTAINER.sql.zst | tail -n +$((HISTORY + 1)) | xargs -r rm --
cd -
echo "Old backups removed."
if [ -n "$NOTIFY_URL" ]; then
curl $NOTIFY_URL
fi