Add max retries to sftp

.gitlab-ci.yml

@@ -18,8 +18,9 @@ prod-ftp:
   stage: deploy
   image: harbor.sch.bme.hu/kszk/lftp:latest
   script:
-    - lftp -e "set dns:order 'inet inet6';
-      mirror --parallel=5 --delete --verbose -R public/ site/kszk/ ; quit"
+    - lftp -e "set dns:order 'inet inet6'; set net:timeout 5; 
+      set net:max-retries 2; set net:reconnect-interval-base 5;
+      mirror --parallel=10 --delete --verbose -R public/ site/kszk/ ; quit"
       -u $FTP_USER,$FTP_PASS $FTP_HOST
   only:
     - master