Is it possible to force snapshot BEFORE shutdown, using packer?

[William Fernando Oquendo Patiño]

Hi,

I need to create a snapshot of a virtual machine, configured through packer virtualbox-vm, BEFORE the shutdown command. Is it possible? for now I am doing it manually.

This is different to the "target_snapshot" option that runs at the end. I need the snapshot with the machine "turned on".

Thanks in advance for any suggestion.

[Dan Linder]

I don’t know of an option in Packer to do exactly that.  If not, you could write up a script to call the API in your VM host to trigger the snapshot.  Then that script could be one of the last builder scripts in the Packer JSON file.

[William Oquendo]

Hi,

yours is a good idea. I added a provisioner to do that. I was not able to pass the machine name, I put it explicitly, but is working

  "provisioners":
  [
    {
      "type": "shell-local",
      "environment_vars": ["VMNAME={{.Name}}"],
      "inline": ["/usr/local/bin/VBoxManage snapshot base_slack_machine take 'After slackware package install'"]
    }
  ]

Thank you!

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Best regards / Cordialmente,

William-Fernando Oquendo

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