.

docker/scripts/backupdb.sh

@@ -1,25 +1,35 @@
 #!/bin/bash
-# Script example for creating a dump
+# mysql database backup.
+# executed by duplicati run-script-before-required
 # required environment variables:
-#   DB_BACKUP_TARGETFOLDER
+#   DESTINATION
 #   DB_HOST
 #   DB_USER
 #   DB_PASSWORD
-#   DB_NAME
-# Duplicati UI configure as a pre script
-# donwload from git
+#   DB_NAME 
+# download directly from git
 # curl  https://git.limbosolutions.com/kb/duplicati/raw/branch/main/docker/scripts/backupdb.sh > backupdb.sh | chmod +x backupdb.sh
 
+#any error must stop execution
 set -e
-if [ -z ${DB_BACKUP_TARGETFOLDER} ]
+
+if [ $DUPLICATI__OPERATIONNAME != "Backup" ]
 then
-      echo "\$DB_BACKUP_TARGETFOLDER cannot be empty empty"
-      exit -1
+    echo "Not a backup operation. exiting!"
+    #OK, run operation
+    return 0
 fi
 
 
+if [ -z ${DESTINATION} ]
+then
+      echo "\$DESTINATION cannot be empty empty"
+      #5: Error don't run operation
+      exit 5
+fi
 
-TARGETFILENAME=db_dump_$(date -d "today" +"%Y%m%d%H%M%S").sql 
+TARGETFILENAME=${DB_NAME}_dump_$(date -d "today" +"%Y%m%d%H%M%S").sql 
+echo "dump file name:$TARGETFILENAME"
 
 if [ -f /tmp/${TARGETFILENAME} ]
 then
@@ -31,9 +41,10 @@ mysqldump -h ${DB_HOST} --user=${DB_USER} -p"${DB_PASSWORD}" ${DB_NAME} > /tmp/$
 
 
 if [ x$(find "$DB_BACKUP_TARGETFOLDER" -prune -empty) = x"$DB_BACKUP_TARGETFOLDER" ]; then
-echo "folder is empty... ignoring clean db dump folder"
+    echo "folder is empty... ignoring clean db dump folder"
 else
-rm -r ${DB_BACKUP_TARGETFOLDER}/* 
+    rm -r ${DB_BACKUP_TARGETFOLDER} /* 
 fi
 
-mv /tmp/${TARGETFILENAME} ${DB_BACKUP_TARGETFOLDER}/${TARGETFILENAME}
+mv /tmp/${TARGETFILENAME} ${DB_BACKUP_TARGETFOLDER}/${TARGETFILENAME}
+return 0