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DM-41568: Expose the built image ID as an output #6

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Nov 16, 2023
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DM-41568: Expose the built image ID as an output #6

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3 changes: 3 additions & 0 deletions README.md
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Expand Up @@ -56,6 +56,9 @@ To automatically set that, the above example uses the context variable `${{ gith

### Outputs

- `fully_qualified_image_digest` (string) A complete, unique, and immutable identifier for the built image,
e.g. `ghcr.io/owner/repo@sha256:4dcaf15076e027f272dc8aba14b1bab77fec44f8aac94c94f1b01ceee8d099d4`.
This string may be used to reference the built image in `docker pull`, `docker run`, etc.
- `tag` (string) the tag of the image that was pushed to ghcr.io.

## Developer guide
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4 changes: 4 additions & 0 deletions action.yaml
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Expand Up @@ -25,6 +25,9 @@ outputs:
tag:
description: "The tag of the Docker image that was built."
value: ${{ steps.tag.outputs.tag }}
fully_qualified_image_digest:
description: "A complete, unique, immutable identifier for the built image, including the registry and digest"
value: "ghcr.io/${{ inputs.image }}@${{ steps.build.outputs.digest }}"

runs:
using: "composite"
Expand All @@ -47,6 +50,7 @@ runs:
password: ${{ inputs.github_token }}

- name: Build and push
id: build
uses: docker/build-push-action@v4
with:
context: "${{ inputs.context }}"
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