packer-cn/website/source/docs/command-line/build.html.markdown

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description: |
    The `packer build` Packer command takes a template and runs all the builds
    within it in order to generate a set of artifacts. The various builds specified
    within a template are executed in parallel, unless otherwise specified. And the
    artifacts that are created will be outputted at the end of the build.
layout: docs
page_title: 'Build - Command-Line'
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# Command-Line: Build

The `packer build` Packer command takes a template and runs all the builds
within it in order to generate a set of artifacts. The various builds specified
within a template are executed in parallel, unless otherwise specified. And the
artifacts that are created will be outputted at the end of the build.

## Options

- `-color=false` - Disables colorized output. Enabled by default.

- `-debug` - Disables parallelization and enables debug mode. Debug mode flags
  the builders that they should output debugging information. The exact behavior
  of debug mode is left to the builder. In general, builders usually will stop
  between each step, waiting for keyboard input before continuing. This will
  allow the user to inspect state and so on.

- `-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.

- `-force` - Forces a builder to run when artifacts from a previous build
  prevent a build from running. The exact behavior of a forced build is left to
  the builder. In general, a builder supporting the forced build will remove the
  artifacts from the previous build. This will allow the user to repeat a build
  without having to manually clean these artifacts beforehand.

- `-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.