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Bug
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Resolution: Unresolved
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Major
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ubuntu 16.04
docker 18.09.0
jenkins 2.150.1
docker-workflow-plugin 1.17
When enabling buildkit in docker (either via `/etc/docker/daemon.json` or a global env var in jenkins: DOCKER_BUILDKIT=1), the job fails just after building the docker image used for the agent:
https://jenkins.io/doc/book/pipeline/docker/#dockerfile
[Pipeline] // stage
[Pipeline] withEnv
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Agent Setup)
[Pipeline] isUnix
[Pipeline] readFile
[Pipeline] sh
[workspace] Running shell script
+ docker build -t xxxx -f Dockerfile .
... buildkit logs ...
[Pipeline] dockerFingerprintFrom
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] End of Pipeline
java.io.IOException: Cannot retrieve .Id from 'docker inspect ubuntu:18.04'
at org.jenkinsci.plugins.docker.workflow.client.DockerClient.inspectRequiredField(DockerClient.java:220)
at org.jenkinsci.plugins.docker.workflow.FromFingerprintStep$Execution.run(FromFingerprintStep.java:133)
at org.jenkinsci.plugins.docker.workflow.FromFingerprintStep$Execution.run(FromFingerprintStep.java:85)
at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
at hudson.security.ACL.impersonate(ACL.java:290)
at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Finished: FAILURE
Analysis:
jenkins tries to get information about the base image used in the Dockerfile: `dockerFingerprintFrom`. It does so by assuming the base image is available in `docker images`, as it was just used to build the agent image.
(This has a small timing issue if a system-wide `docker image prune` happens between the build and the call to `dockerFingerprintFrom`.)
This worked great with the old docker builder, which effectively did a `docker pull` of the base image, but buildkit does not behave like that: it keeps things completely internally.
$ cat Dockerfile
FROM ubuntu:18.04
$ DOCKER_BUILDKIT=1 docker build .
[+] Building 1.7s (5/5) FINISHED
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 37B 0.0s
=> [internal] load metadata for docker.io/library/ubuntu:18.04 1.6s
=> [1/1] FROM docker.io/library/ubuntu:18.04@sha256:868fd30a0e47b8d8ac485df174795b5e2fe8a6c8f056cc707b232d65b8a1ab68 0.0s
=> => resolve docker.io/library/ubuntu:18.04@sha256:868fd30a0e47b8d8ac485df174795b5e2fe8a6c8f056cc707b232d65b8a1ab68 0.0s
=> exporting to image 0.0s
=> => exporting layers 0.0s
=> => writing image sha256:645e081eb3fdb8c828216921411fc0c08335e4fd098c151b44aba797fa334839 0.0s
$ docker inspect ubuntu:18.04
[]
Error: No such object: ubuntu:18.04
- is related to
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JENKINS-57780 Docker Pipeline: Support for Buildkit
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- Open
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