packer-cn/website/content/docs/datasources/index.mdx

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---
description: |
Data sources allow data to be fetched for use in Packer configuration. Use of data sources
allows a build to use information defined outside of Packer.
page_title: Data Sources
sidebar_title: Data Sources
---
# Data Sources
Data sources allow data to be fetched for use in Packer configuration. Use of data sources
allows a build to use information defined outside of Packer.
See the [`data`](/docs/templates/hcl_templates/datasources) block documentation to learn more
about working with data sources. For information on an individual data source,
choose it from the sidebar.
-> **Note:** Data sources is a feature exclusively available to HCL2 templates included in Packer `v1.7.0` (and newer).