php:8.0.0RC5-cli-alpine not usable - wrong manifest

[ondrejmirtes]

When I try to base my image on php:8.0.0RC5-cli-alpine, it fails when building:

#3 [internal] load metadata for docker.io/library/php:8.0.0RC5-cli-alpine 
#3 ERROR: failed to copy: httpReaderSeeker: failed open: could not fetch content descriptor sha256:133e3779a83d11e84e1c4beda5ee7d5a95aa8c4cbadcd6d2a53b95ee1d4278b5 (application/vnd.docker.distribution.manifest.v1+json) from remote: not found

Interestingly, it works when I use php:rc-cli-alpine.

Someone more proficient in Docker told me on the community Slack:

Hi Ondřej Mirtes yes looks like they have used the wrong manifest for linux/amd64:

$ docker buildx imagetools inspect docker.io/library/php:8.0.0RC5-cli-alpine
Name:      docker.io/library/php:8.0.0RC5-cli-alpine
MediaType: application/vnd.docker.distribution.manifest.list.v2+json
Digest:    sha256:17fad02da30e9704fa03cb88d40468be376fce6dcd47e3dcb431dfdf698ba990
Manifests:
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:133e3779a83d11e84e1c4beda5ee7d5a95aa8c4cbadcd6d2a53b95ee1d4278b5
  MediaType: application/vnd.docker.distribution.manifest.v1+json
  Platform:  linux/amd64
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:9932e36559a0e82f4536024c60f2677e152f04d5d040d2fda3125625bf580ddd
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/arm/v6
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:91cf8a32c59b82604d64f69c1eafe0ff362932ef95e9aa9fbbbe99da72c2b829
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/arm/v7
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:9ebfe293e605619b93279ba0c8fcc1aa8f2512bf9ccdc6743b59ff3dc384d7be
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/arm64/v8
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:a1431a7c30308997ae6b693c7bc705354134b653ac0bf647b8e34e3aec7b06cf
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/386
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:ebbda89728aaa22c80aa16c3a1815f4f42c378c7242b87c875af671164aff2ec
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/ppc64le
  Name:      docker.io/library/php:8.0.0RC5-cli-alpine@sha256:eddec5b10930ad294752d18f5f07da05489c117a0a4e49e18bd1acdde69faeb7
  MediaType: application/vnd.docker.distribution.manifest.v2+json
  Platform:  linux/s390x

[tianon]

Looks like this was another unfortunate instance of docker-library/golang#269 -- however, in this case it's an actively supported tag, so I've gone and re-pushed the built artifact (which appears to have fixed amd64/php:8.0.0RC5-cli-alpine properly), and re-triggered the manifest list which appears to have updated library/php:8.0.0RC5-cli-alpine properly too.