Docker image build tool BuildKit can use Docker Registry as a remote build cache: https://github.com/moby/buildkit#registry-push-image-and-cache-separately
Unfortunately, Artifactory is not compatible with this feature.
How to reproduce
Create Dockerfile with content:
FROM busybox:latest
RUN echo "Hello, world!!!"
Run command like:
#!/bin/bash REGISTRY=artifactory.example.net/test-docker/example docker run \ --rm \ -it \ --privileged \ -v $(pwd):/tmp/work \ -v $HOME/.docker:/root/.docker \ --entrypoint buildctl-daemonless.sh \ moby/buildkit:v0.9.0 \ build \ --frontend dockerfile.v0 \ --local context=/tmp/work \ --local dockerfile=/tmp/work \ --progress plain \ --import-cache type=registry,ref=${REGISTRY}:buildcache \ --export-cache type=registry,ref=${REGISTRY}:buildcache,push=true,mode=max \ --output type=image,name=${REGISTRY}:latest,push=true
Expected result
Command completed sucessfully
Actual result
Build failed with error like:
#8 exporting to image #8 pushing layers 0.7s done #8 pushing manifest for artifactory.example.net/test-docker/example:latest@sha256:fa18d5f75f92c19cb1ba239bd059dd551d6007694a2d681b7d513884bde6d0a5 #8 pushing manifest for artifactory.example.net/test-docker/example:latest@sha256:fa18d5f75f92c19cb1ba239bd059dd551d6007694a2d681b7d513884bde6d0a5 0.5s done #8 DONE 1.5s #12 exporting cache #12 preparing build cache for export 0.0s done #12 writing layer sha256:b71f96345d44b237decc0c2d6c2f9ad0d17fde83dad7579608f1f0764d9686f2 #12 writing layer sha256:b71f96345d44b237decc0c2d6c2f9ad0d17fde83dad7579608f1f0764d9686f2 0.1s done #12 writing layer sha256:ee8d7f86d1f90694b6410247c1895632739009a59e080673b29965a808ce63f9 0.1s done #12 writing config sha256:2f8e49086de6ee9255833bfe7191deb2f5966dc9aa824288f0091f54a593bc19 #12 writing config sha256:2f8e49086de6ee9255833bfe7191deb2f5966dc9aa824288f0091f54a593bc19 0.3s done #12 writing manifest sha256:36716a9180f8189f16dec3c52031d0c0afcd32f036930ba9e8ffaf6b76c99e23 #12 writing manifest sha256:36716a9180f8189f16dec3c52031d0c0afcd32f036930ba9e8ffaf6b76c99e23 0.1s done #12 ERROR: error writing manifest blob: failed commit on ref "sha256:36716a9180f8189f16dec3c52031d0c0afcd32f036930ba9e8ffaf6b76c99e23": unexpected status: 400 Bad Request ------ > importing cache manifest from artifactory.example.net/test-docker/example:buildcache: ------ ------ > exporting cache: ------ error: failed to solve: error writing manifest blob: failed commit on ref "sha256:36716a9180f8189f16dec3c52031d0c0afcd32f036930ba9e8ffaf6b76c99e23": unexpected status: 400 Bad Request
Related error in /opt/jfrog/artifactory/var/log/console.log:
#62428:2021-07-25T21:14:20.461Z [jfrt ] [INFO ] [30fd0c627473d3bd] [h.DockerManifestPutHandler:103] [ttp-nio-8081-exec-12] - Deploying docker manifest for image 'example' and tag 'buildcache' in repo 'test-docker' #62429:2021-07-25T21:14:20.461Z [jfrt ] [ERROR] [30fd0c627473d3bd] [h.DockerManifestPutHandler:374] [ttp-nio-8081-exec-12] - Error uploading manifest: 'N/A (through reference chain: org.jfrog.repomd.docker.manifest.ManifestListJson["manifests"]->java.util.ArrayList[0]->org.jfrog.repomd.docker.manifest.ManifestListJson$ManifestJson["annotations"])'
Workaround
Use stock Docker Registry (https://docs.docker.com/registry/deploying/) for docker image build cache.
