#2 Fix mysql backup in apps and update alerta command

templates/app.yaml

@@ -31,11 +31,11 @@ consistency:
         - archives
 hooks:
     mysql_databases:
-        - name: '{{ application_id }}'
+        - name: '{{ application_db }}'
           hostname: db
           port: 3306
-          username: '{{ application_id }}'
-          password: '{{ application_id }}'
+          username: '{{ application_db }}'
+          password: '{{ application_db }}'
           options: '--skip-comments --no-tablespaces'
     before_backup:
         - echo "`date` - Starting backup"