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Provide outputs as env vars

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Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
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CrazyMax
2023-01-13 10:45:14 +01:00
parent 05d22bf317
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README.md
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@ -297,6 +297,23 @@ Following outputs are available
| `json` | String | JSON output of tags and labels |
| `bake-file` | File | [Bake file definition](https://docs.docker.com/build/customize/bake/file-definition/) path |
Alternatively, each output is also exported as an environment variable:
* `DOCKER_METADATA_OUTPUT_VERSION`
* `DOCKER_METADATA_OUTPUT_TAGS`
* `DOCKER_METADATA_OUTPUT_LABELS`
* `DOCKER_METADATA_OUTPUT_JSON`
* `DOCKER_METADATA_OUTPUT_BAKE_FILE`
So it can be used with our [Docker Build Push action](https://github.com/docker/build-push-action/):
```yaml
- uses: docker/build-push-action@v3
with:
build-args: |
DOCKER_METADATA_OUTPUT_JSON
```
### environment variables
| Name | Type | Description |