47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
---
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description: |
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The `packer validate` Packer command is used to validate the syntax and
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configuration of a template. The command will return a zero exit status on
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success, and a non-zero exit status on failure. Additionally, if a template
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doesn't validate, any error messages will be outputted.
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page_title: packer validate - Commands
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sidebar_title: <tt>validate</tt>
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---
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# `validate` Command
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The `packer validate` Packer command is used to validate the syntax and
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configuration of a [template](/docs/templates). The command will
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return a zero exit status on success, and a non-zero exit status on failure.
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Additionally, if a template doesn't validate, any error messages will be
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outputted.
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Example usage:
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```shell-session
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$ packer validate my-template.json
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Template validation failed. Errors are shown below.
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Errors validating build 'vmware'. 1 error(s) occurred:
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* Either a path or inline script must be specified.
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```
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## Options
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- `-syntax-only` - Only the syntax of the template is checked. The
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configuration is not validated.
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- `-except=foo,bar,baz` - Validates all the builds except those with the
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comma-separated names. Build names by default are the names of their
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builders, unless a specific `name` attribute is specified within the configuration.
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- `-only=foo,bar,baz` - Only validate the builds with the given comma-separated
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names. Build names by default are the names of their builders, unless a
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specific `name` attribute is specified within the configuration.
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- `-var` - Set a variable in your packer template. This option can be used
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multiple times. This is useful for setting version numbers for your build.
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- `-var-file` - Set template variables from a file.
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