Let's asume I have a Packer file named windows_10.json. I ran packer build windows_10.json and it takes 3 to 4 hours to build a VirtualBox image of Windows 10. The build process finishes successfully and creates a VirtualBox image consisting of a .ovf and a .vmdk file compressed in a .zip file. Let's further asume that I have forgotten to add the code below for a vagrant post-processor to my windows_10.json file which should produce a Vagrant box:
"post-processors": [
{
"type": "vagrant",
"only": ["virtualbox-iso"],
"keep_input_artifact": true,
"output": "windows_10_{{.Provider}}.box",
"vagrantfile_template": "vagrantfile-windows_10.template"
}
Now my question is: After adding the above code to windows_10.json file can I instruct Packer to do the post-process step ONLY and create a Vagrant box skipping the long build process? I don´t want to wait 3 to 4 hours again but instead continue with the creation of the Vagrant box.
As far as I am aware you cannot skip the build process as some of the inputs it will use for the post processor will come from part of the builders steps.