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tonistiigi merged 1 commit into from
Feb 4, 2023
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docs: update syntax for labs channel in examples #3577

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6 changes: 4 additions & 2 deletions frontend/dockerfile/docs/reference.md
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Expand Up @@ -1323,17 +1323,19 @@ ADD [--keep-git-dir=<boolean>] <git ref> <dir>
```

```dockerfile
# syntax=docker/dockerfile-upstream:master-labs
# syntax=docker/dockerfile:1-labs
FROM alpine
ADD --keep-git-dir=true https://github.com/moby/buildkit.git#v0.10.1 /buildkit
```

The `--keep-git-dir=true` flag adds the `.git` directory. This flag defaults to false.

### Adding a private git repository

To add a private repo via SSH, create a Dockerfile with the following form:

```dockerfile
# syntax = docker/dockerfile-upstream:master-labs
# syntax=docker/dockerfile:1-labs
FROM alpine
ADD git@git.example.com:foo/bar.git /bar
```
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