Using environ variables in packer json file

[ksac...@gmail.com]

I have a provisioners section that has a following snippet

 {

      "type":"file",

      "source":"my-init.sh",

      "destination":"/root/myuser/run/my-init.sh"

  },

The source value may not always be in same directory where I am running the packer build from. For example my packer.json might be at "/home/user1/packer.json" and I have the "my-init.sh" at "/home/user1/somedir". I want to replace the source with something like a bash variable which is the $HOME on linux like 

 {

      "type":"file",

      "source":"$HOME/my-init.sh",

      "destination":"/root/myuser/run/my-init.sh"

  },

How do I do that?

[Rickard von Essen]

See https://www.packer.io/docs/templates/user-variables.html#using-home-variable

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