github.com/hashicorp/packer@v1.14.3/website/content/partials/from-1.5/variables/assignment.mdx (about)

     1  ## Assigning Values to input Variables
     2  
     3  Once a variable is declared in your configuration, you can set it:
     4  
     5  - Individually, with the `-var foo=bar` command line option.
     6  - In variable definitions files, either specified on the command line with the `-var-files values.pkrvars.hcl` or automatically loaded (`*.auto.pkrvars.hcl`).
     7  - As environment variables, for example: `PKR_VAR_foo=bar`