Bake does not show target stage for COPY --link

[ciaranmcnulty]

When I build multiple targets (e.g. via a group or explicitly) it's not often clear which target a build(ing) stage corresponds to

sample log
Dockerfile

The build steps that don't have a TARGET name are the ones that do COPY --link, but not all of the them are missing it.

I'm not clear what is happening behind the scenes to cause this!

[jedevc]

I assume you mean like here?

#78 [debian php-configured  8/19] RUN php -m | grep ast
#78 CACHED

#79 [php-configured  7/19] COPY --link <<EOF /usr/local/etc/php/conf.d/phpqa.ini
#79 CACHED

Could you share what your bake file looks like, or a minimal reproduction? 😄 Sorry, I'm having a tricky time parsing the exact issue you're spotting 👀

[ciaranmcnulty]

That's a good example where the debian target is present in one line and not the other

[ciaranmcnulty]

I'm not sure if this is the same issue but I today got this output from a bake:

[Edit: removed loads of detail]

[ciaranmcnulty]

This is reproducible without the cache stuff actually so ignore the detail above!

services:
  localstack:
    build:
      context: .
  other:
    build:
      context: ./other

# syntax=docker/dockerfile:1.4
FROM localstack/localstack:0.14.5
COPY --link docker-entrypoint-initaws.d /docker-entrypoint-initaws.d

other/Dockerfile is just FROM scratch

docker buildx bake --pull --no-cache:

[+] Building 2.0s (14/14) FINISHED                                                                                                                                                                                                                                                                                      
 => [localstack internal] load build definition from Dockerfile                                                                                                                                                                                                                                                    0.0s
 => => transferring dockerfile: 173B                                                                                                                                                                                                                                                                               0.0s
 => [localstack internal] load .dockerignore                                                                                                                                                                                                                                                                       0.0s
 => => transferring context: 2B                                                                                                                                                                                                                                                                                    0.0s
 => [other internal] load build definition from Dockerfile                                                                                                                                                                                                                                                         0.0s
 => => transferring dockerfile: 50B                                                                                                                                                                                                                                                                                0.0s
 => [other internal] load .dockerignore                                                                                                                                                                                                                                                                            0.0s
 => => transferring context: 2B                                                                                                                                                                                                                                                                                    0.0s
 => [localstack] resolve image config for docker.io/docker/dockerfile:1.4                                                                                                                                                                                                                                          1.3s
 => [auth] docker/dockerfile:pull token for registry-1.docker.io                                                                                                                                                                                                                                                   0.0s
 => CACHED [localstack] docker-image://docker.io/docker/dockerfile:1.4@sha256:443aab4ca21183e069e7d8b2dc68006594f40bddf1b15bbd83f5137bd93e80e2                                                                                                                                                                     0.0s
 => => resolve docker.io/docker/dockerfile:1.4@sha256:443aab4ca21183e069e7d8b2dc68006594f40bddf1b15bbd83f5137bd93e80e2                                                                                                                                                                                             0.0s
 => [localstack internal] load metadata for docker.io/localstack/localstack:0.14.5                                                                                                                                                                                                                                 0.4s
 => [auth] localstack/localstack:pull token for registry-1.docker.io                                                                                                                                                                                                                                               0.0s
 => [localstack internal] load build context                                                                                                                                                                                                                                                                       0.0s
 => => transferring context: 104B                                                                                                                                                                                                                                                                                  0.0s
 => [localstack 1/2] FROM docker.io/localstack/localstack:0.14.5@sha256:2f44dbb2af684c498892cfd6e493f2fea177edbf53322e0d6b28c28f32a454fb                                                                                                                                                                           0.0s
 => => resolve docker.io/localstack/localstack:0.14.5@sha256:2f44dbb2af684c498892cfd6e493f2fea177edbf53322e0d6b28c28f32a454fb                                                                                                                                                                                      0.0s
 => CACHED [2/2] COPY --link docker-entrypoint-initaws.d /docker-entrypoint-initaws.d      

The [2/2] doesn't say which target it belongs to

[ciaranmcnulty]

And to confirm, if I remove --link that stage says [localstack 2/2]