Hi Luis,

I got an error message pushing to Dockerhub in Lab 7, chapter 9, page 11 of the lab (when pushing to registry is added) as follows: (see error at end of message).

this was the message from the build before, which seemed to work:

9 exporting to image

9 exporting layers

9 exporting layers 0.5s done

9 writing image sha256:97464fd7b8adadb872e11517b68530760e5cfc0df46fe27f374a1d1028bc39ea done

#9 naming to docker.io/xxxx/worker:v11 done

9 DONE 0.5s****

THIS WAS THE ERROR AT END OF BUILD AND IMAGES NOT PUSHED TO DOCKERHUB: From the messages i conclude some image validation triggers and maybe prevents the push to the registry. But thats the code from the lab and i doubt there is a mistake (as the image name is being exactly as the code suggests)?

docker.withRegistry('https://index.docker.io/v1/',
'dockerlogin') { def workerImage =
docker.build("xxxxxxxx/worker:v${env.BUILD_ID}", './worker')
workerImage.push('{env.BRANCH_NAME}')
workerImage.push('latest')
}
}
}

Also: org.jenkinsci.plugins.workflow.actions.ErrorAction$ErrorId: 470c23a5-79de-4104-93aa-a9ba7d01d6cb
ERROR: Tag must follow the pattern '^:a-zA-Z0-9_{0,127}'
at hudson.util.FormValidation._errorWithMarkup(FormValidation.java:268)
at hudson.util.FormValidation.errorWithMarkup(FormValidation.java:254)
at hudson.util.FormValidation.error(FormValidation.java:145)
at hudson.util.FormValidation.error(FormValidation.java:170)
at org.jenkinsci.plugins.docker.commons.credentials.ImageNameValidator.validateTag(ImageNameValidator.java:244)
at org.jenkinsci.plugins.docker.commons.credentials.ImageNameValidator.validateUserAndRepo(ImageNameValidator.java:116)
at org.jenkinsci.plugins.docker.commons.credentials.DockerRegistryEndpoint.imageName(DockerRegistryEndpoint.java:331)
at jdk.internal.reflect.GeneratedMethodAccessor682.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)