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Sep 8, 2025
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bake: add pattern matching for targets input #23360

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bake: add pattern matching for targets input
aevesdocker Sep 4, 2025
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aevesdocker Sep 8, 2025
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36 changes: 36 additions & 0 deletions content/manuals/build/bake/targets.md
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Expand Up @@ -96,6 +96,42 @@ command.
$ docker buildx bake all
```

## Pattern matching for targets and groups

Bake supports shell-style wildcard patterns when specifying target or grouped targets.
This makes it easier to build multiple targets without listing each one explicitly.

Supported patterns:

- `*` matches any sequence of characters
- `?` matches any single character
- `[abc]` matches any character in brackets

Examples:

```console
# Match all targets starting with 'foo-'
$ docker buildx bake foo-*
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@crazy-max crazy-max Sep 8, 2025

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Suggested change
$ docker buildx bake foo-*
$ docker buildx bake "foo-*"


# Match all targets
$ docker buildx bake *
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@thaJeztah thaJeztah Sep 8, 2025

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We should probably call out that the value must be quoted to prevent the user's shell from expanding. Without quotes, the shell will expand to files in the current directory, which will fail in most cases, e.g.;

docker buildx bake *
[+] Building 0.0s (1/1) FINISHED                                                                                docker:desktop-linux
 => [internal] load local bake definitions                                                                                      0.0s
 => => reading docker-bake.hcl 4.02kB / 4.02kB                                                                                  0.0s
ERROR: failed to find target api

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@crazy-max crazy-max Sep 8, 2025 •
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Yes should be quoted, a note would be good to explain this

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@crazy-max crazy-max Sep 8, 2025

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Suggested change
$ docker buildx bake *
$ docker buildx bake "*"


# Matches: foo-baz, foo-caz, foo-daz, etc.
$ docker buildx bake "foo-?az"

# Matches: foo-bar, boo-bar
$ docker buildx bake "[fb]oo-bar"

# Matches: mtx-a-b-d, mtx-a-b-e, mtx-a-b-f
$ docker buildx bake "mtx-a-b-*"
```

You can also combine multiple patters:
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@crazy-max crazy-max Sep 8, 2025

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You can also combine multiple patters:
You can also combine multiple patterns:


```console
$ docker buildx bake "*" "tests"
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@crazy-max crazy-max Sep 8, 2025

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tests would not be necessary here as we glob everything already. Maybe instead:

Suggested change
$ docker buildx bake "*" "tests"
$ docker buildx bake "foo*" "tests"

```

## Additional resources

Refer to the following pages to learn more about Bake's features:
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