DEV-1058 bugfix backup process

- removed hard coded database server

create-remote-database-backup.yml

@@ -1,5 +1,14 @@
 ---
 
+#    ******         **         ******    **   **   **     **   *******    #
+#   /*////**       ****       **////**  /**  **   /**    /**  /**////**   #
+#   /*   /**      **//**     **    //   /** **    /**    /**  /**   /**   #
+#   /******      **  //**   /**         /****     /**    /**  /*******    #
+#   /*//// **   **********  /**         /**/**    /**    /**  /**////     #
+#   /*    /**  /**//////**  //**    **  /**//**   /**    /**  /**         #
+#   /*******   /**     /**   //******   /** //**  //*******   /**         #
+#   ///////    //      //     //////    //   //    ///////    //          #
+
 # creates remote database backup
 #   - postgres
 #     - executed on stage specific server: {{ shared_service_postgres_secondary }} (currently: slave)
@@ -25,12 +34,7 @@
   connection: local
   gather_facts: false
 
-  pre_tasks:
-    - name: "Import constraints check"
-      import_tasks: tasks/constraints_check.yml
-      tags:
-        - always
-
+  tasks:
 #     add virtual server to load stage specific variables as context
     - name: "Add <{{ stage }}-virtual-host-to-read-groups-vars> to hosts"
       add_host:
@@ -39,6 +43,17 @@
         - "stage_{{ stage }}"
       changed_when: False
 
+- hosts: "{{ stage }}-virtual-host-to-read-groups-vars"
+  serial: "{{ serial_number | default(1) }}"
+  gather_facts: false
+  connection: local
+
+  pre_tasks:
+    - name: "Import constraints check"
+      import_tasks: tasks/constraints_check.yml
+      tags:
+        - always
+
   tasks:
     - name: "Add {{ database_engine }} servers to hosts if necessary"
       add_host:
@@ -63,7 +78,7 @@
         name: "{{ stage }}-backup-01"
         groups:
         - "stage_{{ stage }}"
-        - storage
+        - "storage"
 
 ##############################################################
 ##   Creating remote database backups for created inventory