No event for snapshot deletion

[svinopterix]

Hello,

We need to send email notifications for creation and deletion of VM shapshots on VMware.
When creating snapshot we catch the respective event and trigger state machine on it, which sends a notification.
MiqAeEvent.build_evm_event >> event=<:request_vm_create_snapshot> inputs=<{:vm=>#<ManageIQ::Providers::Vmware::InfraManager::Vm ......

But when deleting a snapshot we get as follows. Is it possble to turn this message into event and trigger state machine on it?

#<DRb::DRbUnknown:0x000055f19ba9c508 @name="MiqQueue", @buf="\x04\bo:\rMiqQueue\x16:\x10@new_recordF:\x10@attributeso:\x1EActiveModel::AttributeSet\x06;\a{!I\"\aid\x06:\x06ETo:)ActiveModel::Attribute::FromDatabase\n:\n@name@\b:\x1C@value_before_type_casti\x03Z\xA4\xA1:\n@typeo:\x1FActiveModel::Type::Integer\t:\x0F@precision0:\v@scale0:\v@limiti\r:\v@rangeo:\nRange\b:\texclT:\nbeginl-\t\x00\x00\x00\x00\x00\x00\x00\x80:\bendl+\t\x00\x00\x00\x00\x00\x00\x00\x80:\x18@original_attribute0:\v@valuei\x03Z\xA4\xA1I\"\x0Etarget_id\x06;\tTo;\n\n;\v@\x0E;\f0;\r@\n;\x170;\x180I\"\rpriority\x06;\tTo;\n\n;\v@\x10;\fii;\ro;\x0E\t;\x0F0;\x100;\x11i\t;\x12o;\x13\b;\x14T;\x15l-\a\x00\x00\x00\x80;\x16l+\a\x00\x00\x00\x80;\x170;\x18iiI\"\x10method_name\x06;\tTo;\n\n;\v@\x16;\fI\"\x11invoke_tasks\x06;\tT;\ro:\x1EActiveModel::Type::String\b;\x0F0;\x100;\x110;\x170;\x18I\"\x11invoke_tasks\x06;\tTI\"\nstate\x06;\tTo;\n\n;\v@\e;\fI\"\nready\x06;\tT;\r@\x19;\x170;\x18I\"\nready\x06;\tTI\"\x0Fcreated_on\x06;\tTo;\n\t;\v@\x1F;\fIu:\tTime\r\xA7\xA1\x1E\xC02+?B\t:\rnano_numi%:\rnano_deni\x06:\rsubmicro\"\a\x03 :\tzoneI\"\bUTC\x06;\tF;\rU:JActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter[\t:\v__v2__[\x00[\x00o:@ActiveRecord::ConnectionAdapters::PostgreSQL::OID::DateTime\b;\x0F0;\x100;\x110;\x170I\"\x0Fupdated_on\x06;\tTo;\n\t;\v@);\f@#;\rU;\x1F[\t; [\x00[\x00@(;\x170I\"\x11lock_version\x06;\tTo;\n\t;\v@/;\fi\x00;\rU:'ActiveRecord::Locking::LockingType[\t; [\x00[\x00@\x12;\x170I\"\ftask_id\x06;\tTo;\n\n;\v@5;\f0;\r@\x19;\x170;\x180I\"\x0Fdeliver_on\x06;\tTo;\n\n;\v@7;\f0;\rU;\x1F[\t; [\x00[\x00@(;\x170;\x180I\"\x0Fqueue_name\x06;\tTo;\n\n;\v@=;\fI\"\fgeneric\x06;\tT;\r@\x19;\x170;\x18I\"\fgeneric\x06;\tTI\"\x0Fclass_name\x06;\tTo;\n\n;\v@A;\fI\"\aVm\x06;\tF;\r@\x19;\x170;\x18I\"\aVm\x06;\tFI\"\x10instance_id\x06;\tTo;\n\n;\v@E;\f0;\r@\n;\x170;\x180I\"\targs\x06;\tTo;\n\n;\v@G;\fI\"Z---\n- :snap_selected: 426\n :ids:\n - 480\n :task: remove_snapshot\n :userid: system\n\x06;\tT;\rU:#ActiveRecord::Type::Serialized[\t; [\a:\r@subtype:\v@coder[\ao:\x1DActiveRecord::Type::Text .......

[Fryguy]

I'm not even sure what's going on here as that's a DRb error - @agrare Thoughts here?

[agrare]

@svinopterix I think your best bet is to use the removesnapshot_task.yaml and removeallsnapshots_task.yaml event handlers in content/automate/ManageIQ/System/Event/EmsEvent/VC.class/ These will be invoked when the event catcher detects those commands were run and should happen a little bit faster than a before_delete handler on the model.

Is it possble to turn this message

Where did you find that message? I don't think that is a DRb failure it looks more like the DRb based queue preloading between workers and MiqServer

[svinopterix]

@agrare The events from EmsEvent do work. But I can't distinguish if this event is triggered in MIQ or outside of MIQ (f.e. if the snapshot is created by backup software). That's why we're looking for MIQ event instead of EMS event. The DRb message seems to be related with snapshot request from MIQ interface, but I'm not sure.