readme: update following latest buildx/buildkit releases

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>
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CrazyMax 2024-04-15 09:50:33 +02:00
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@ -118,14 +118,6 @@ to the default Git context:
tags: user/app:latest
```
> **Warning**
>
> Subdirectory for Git context is available from [BuildKit v0.9.0](https://github.com/moby/buildkit/releases/tag/v0.9.0).
> If you're using the `docker` builder (default if `setup-buildx-action` not used),
> then BuildKit in Docker Engine will be used. As Docker Engine < v22.x.x embeds
> Buildkit 0.8.2 at the moment, it does not support this feature. It's therefore
> required to use the `setup-buildx-action` at the moment.
Building from the current repository automatically uses the [GitHub Token](https://docs.github.com/en/actions/security-guides/automatic-token-authentication),
so it does not need to be passed. If you want to authenticate against another
private repository, you have to use a [secret](https://docs.docker.com/build/ci/github-actions/secrets)
@ -232,7 +224,7 @@ Following inputs can be used as `step.with` keys
| `network` | String | Set the networking mode for the `RUN` instructions during build |
| `no-cache` | Bool | Do not use cache when building the image (default `false`) |
| `no-cache-filters` | List/CSV | Do not cache specified stages |
| `outputs`¹ | List | List of [output destinations](https://docs.docker.com/engine/reference/commandline/buildx_build/#output) (format: `type=local,dest=path`) |
| `outputs` | List | List of [output destinations](https://docs.docker.com/engine/reference/commandline/buildx_build/#output) (format: `type=local,dest=path`) |
| `platforms` | List/CSV | List of [target platforms](https://docs.docker.com/engine/reference/commandline/buildx_build/#platform) for build |
| `provenance` | Bool/String | Generate [provenance](https://docs.docker.com/build/attestations/slsa-provenance/) attestation for the build (shorthand for `--attest=type=provenance`) |
| `pull` | Bool | Always attempt to pull all referenced images (default `false`) |
@ -248,10 +240,6 @@ Following inputs can be used as `step.with` keys
| `ulimit` | List | [Ulimit](https://docs.docker.com/engine/reference/commandline/buildx_build/#ulimit) options (e.g., `nofile=1024:1024`) |
| `github-token` | String | GitHub Token used to authenticate against a repository for [Git context](#git-context) (default `${{ github.token }}`) |
> **Note**
>
> * ¹ multiple `outputs` are [not yet supported](https://github.com/moby/buildkit/issues/1555)
### outputs
The following outputs are available: