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The `packer validate` Packer command is used to validate the syntax and configuration of a template. The command will return a zero exit status on success, and a non-zero exit status on failure. Additionally, if a template doesn't validate, any error messages will be outputted. docs packer validate - Commands docs-commands-validate

validate Command

The packer validate Packer command is used to validate the syntax and configuration of a template. The command will return a zero exit status on success, and a non-zero exit status on failure. Additionally, if a template doesn't validate, any error messages will be outputted.

Example usage:

$ packer validate my-template.json
Template validation failed. Errors are shown below.

Errors validating build 'vmware'. 1 error(s) occurred:

* Either a path or inline script must be specified.

Options

  • -syntax-only - Only the syntax of the template is checked. The configuration is not validated.

  • -except=foo,bar,baz - Builds all the builds except those with the given comma-separated names. Build names by default are the names of their builders, unless a specific name attribute is specified within the configuration.

  • -only=foo,bar,baz - Only build the builds with the given comma-separated names. Build names by default are the names of their builders, unless a specific name attribute is specified within the configuration.

  • -var - Set a variable in your packer template. This option can be used multiple times. This is useful for setting version numbers for your build.

  • -var-file - Set template variables from a file.