forked from TrueCloudLab/distribution
39 lines
1.9 KiB
Markdown
39 lines
1.9 KiB
Markdown
---
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title: Image manifest version 2, schema 1
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description: Update deprecated schema v1 images
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keywords: registry, on-prem, images, tags, repository, distribution, api, advanced, manifest
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---
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With the release of image manifest version 2, schema 2, image manifest version
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2, schema 1 has been deprecated. This could lead to compatibility and
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vulnerability issues in images that haven't been updated to image manifest
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version 2, schema 2.
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This page contains information on how to update from image manifest version 2,
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schema 1. However, these instructions will not ensure your new image will run
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successfully. There may be several other issues to troubleshoot that are
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associated with the deprecated image manifest that will block your image from
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running successfully. A list of possible methods to help update your image is
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also included below.
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## Update to image manifest version 2, schema 2
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One way to upgrade an image from image manifest version 2, schema 1 to
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schema 2 is to `docker pull` the image and then `docker push` the image with a
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current version of Docker. Doing so will automatically convert the image to use
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the latest image manifest specification.
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Converting an image to image manifest version 2, schema 2 converts the
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manifest format, but does not update the contents within the image. Images
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using manifest version 2, schema 1 may contain unpatched vulnerabilities. We
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recommend looking for an alternative image or rebuilding it.
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## Update FROM statement
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You can rebuild the image by updating the `FROM` statement in your
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`Dockerfile`. If your image manifest is out-of-date, there is a chance the
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image pulled from your `FROM` statement in your `Dockerfile` is also
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out-of-date. See the [Dockerfile reference](https://docs.docker.com/engine/reference/builder/#from)
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and the [Dockerfile best practices guide](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/)
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for more information on how to update the `FROM` statement in your
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`Dockerfile`.
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