diff --git a/cps/admin.py b/cps/admin.py
index fedee340..0b90327e 100644
--- a/cps/admin.py
+++ b/cps/admin.py
@@ -159,7 +159,7 @@ def shutdown():
 # needed for docker applications, as changes on metadata.db from host are not visible to application
 @admi.route("/reconnect", methods=['GET'])
 def reconnect():
-    if cli.args.r:
+    if cli.reconnect_enable:
         calibre_db.reconnect_db(config, ub.app_DB_path)
         return json.dumps({})
     else:
diff --git a/cps/cli.py b/cps/cli.py
index a63d7282..36c03513 100644
--- a/cps/cli.py
+++ b/cps/cli.py
@@ -84,10 +84,14 @@ if args.k == "":
 
 # dry run updater
 dry_run = args.d or None
+# enable reconnect endpoint for docker database reconnect
+reconnect_enable = args.r or os.environ.get("CALIBRE_RECONNECT", None)
 # load covers from localhost
-allow_localhost = args.l or None
+allow_localhost = args.l or os.environ.get("CALIBRE_LOCALHOST", None)
 # handle and check ip address argument
 ip_address = args.i or None
+
+
 if ip_address:
     try:
         # try to parse the given ip address with socket
diff --git a/cps/gdriveutils.py b/cps/gdriveutils.py
index 0b704db4..e75f3742 100644
--- a/cps/gdriveutils.py
+++ b/cps/gdriveutils.py
@@ -81,7 +81,7 @@ if gdrive_support:
     if not logger.is_debug_enabled():
         logger.get('googleapiclient.discovery').setLevel(logger.logging.ERROR)
 else:
-    log.debug("Cannot import pydrive,httplib2, using gdrive will not work: %s", importError)
+    log.debug("Cannot import pydrive, httplib2, using gdrive will not work: %s", importError)
 
 
 class Singleton:
@@ -272,8 +272,7 @@ def getEbooksFolderId(drive=None):
         try:
             session.commit()
         except OperationalError as ex:
-            log.error("gdrive.db DB is not Writeable")
-            log.debug('Database error: %s', ex)
+            log.error_or_exception('Database error: %s', ex)
             session.rollback()
         return gDriveId.gdrive_id
 
@@ -322,8 +321,7 @@ def getFolderId(path, drive):
         else:
             currentFolderId = storedPathName.gdrive_id
     except OperationalError as ex:
-        log.error("gdrive.db DB is not Writeable")
-        log.debug('Database error: %s', ex)
+        log.error_or_exception('Database error: %s', ex)
         session.rollback()
     except ApiRequestError as ex:
         log.error('{} {}'.format(ex.error['message'], path))
@@ -547,8 +545,7 @@ def deleteDatabaseOnChange():
         session.commit()
     except (OperationalError, InvalidRequestError) as ex:
         session.rollback()
-        log.debug('Database error: %s', ex)
-        log.error(u"GDrive DB is not Writeable")
+        log.error_or_exception('Database error: %s', ex)
 
 
 def updateGdriveCalibreFromLocal():
@@ -566,8 +563,7 @@ def updateDatabaseOnEdit(ID,newPath):
         try:
             session.commit()
         except OperationalError as ex:
-            log.error("gdrive.db DB is not Writeable")
-            log.debug('Database error: %s', ex)
+            log.error_or_exception('Database error: %s', ex)
             session.rollback()
 
 
@@ -577,8 +573,7 @@ def deleteDatabaseEntry(ID):
     try:
         session.commit()
     except OperationalError as ex:
-        log.error("gdrive.db DB is not Writeable")
-        log.debug('Database error: %s', ex)
+        log.error_or_exception('Database error: %s', ex)
         session.rollback()
 
 
@@ -599,8 +594,7 @@ def get_cover_via_gdrive(cover_path):
             try:
                 session.commit()
             except OperationalError as ex:
-                log.error("gdrive.db DB is not Writeable")
-                log.debug('Database error: %s', ex)
+                log.error_or_exception('Database error: %s', ex)
                 session.rollback()
         return df.metadata.get('webContentLink')
     else:
diff --git a/cps/helper.py b/cps/helper.py
index 4dabcfce..7dd3ca9f 100644
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -435,8 +435,7 @@ def rename_all_authors(first_author, renamed_author, calibre_path="", localbook=
                         new_author_path = os.path.join(calibre_path, new_author_rename_dir)
                         shutil.move(os.path.normcase(old_author_path), os.path.normcase(new_author_path))
                     except OSError as ex:
-                        log.error("Rename author from: %s to %s: %s", old_author_path, new_author_path, ex)
-                        log.debug(ex, exc_info=True)
+                        log.error_or_exception("Rename author from: %s to %s: %s", old_author_path, new_author_path, ex)
                         return _("Rename author from: '%(src)s' to '%(dest)s' failed with error: %(error)s",
                                  src=old_author_path, dest=new_author_path, error=str(ex))
     else:
@@ -550,8 +549,7 @@ def move_files_on_change(calibre_path, new_authordir, new_titledir, localbook, d
         # change location in database to new author/title path
         localbook.path = os.path.join(new_authordir, new_titledir).replace('\\', '/')
     except OSError as ex:
-        log.error("Rename title from: %s to %s: %s", path, new_path, ex)
-        log.debug(ex, exc_info=True)
+        log.error_or_exception("Rename title from: %s to %s: %s", path, new_path, ex)
         return _("Rename title from: '%(src)s' to '%(dest)s' failed with error: %(error)s",
                  src=path, dest=new_path, error=str(ex))
     return False
@@ -572,8 +570,7 @@ def rename_files_on_change(first_author,
         if not gdrive and not renamed_author and not orignal_filepath and len(os.listdir(os.path.dirname(path))) == 0:
             shutil.rmtree(os.path.dirname(path))
     except (OSError, FileNotFoundError) as ex:
-        log.error("Error in rename file in path %s", ex)
-        log.debug(ex, exc_info=True)
+        log.error_or_exception("Error in rename file in path %s", ex)
         return _("Error in rename file in path: %(error)s", error=str(ex))
     return False