401 Unauthorized error when uploading maven package to project registry

GitLab CI/CD
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1

Hi all,

I work with a self-managed GitLab (Community Edition, v13.8.8) instance at the University of Bergen.

  • Our main project uses maven and it builds the package properly, but when I try to upload it to the project package registry I always get this error:

Caused by: org.eclipse.aether.deployment.DeploymentException: Failed to deploy artifacts: Could not transfer artifact no.nels:nels.core:jar:1.0 from/to uib-gitlab-maven (https://git.app.uib.no/api/v4/projects/1719/packages/maven): authentication failed for https://git.app.uib.no/api/v4/projects/1719/packages/maven/no/nels/nels.core/1.0/nels.core-1.0.jar, status: 401 Unauthorized

  • I’ve tried different approaches: (deploy tokens, project access tokens…)) but I’m always shown an
    unauthorised response when trying to publish any artifact, even when I’m the owner of the project.
    I have the package registry enabled.

  • The workflow consists on:

    • GitLab ci/cd job based on a docker container with maven
    • call to mvn deploy using a ci_settings.xml file with the token to be used
    • the pom.xml file contains the project maven repo url as specified in the documentation.

  • I attach the main pieces of the files implied on this problematic workflow using as an example the deploy token “example_deploy_token” with permissions:

read_repository, read_registry, write_registry

– gitlab-ci-yml :

deploy_stage:
 stage: deploy
 image: maven:3.8.1-openjdk-15-slim
 script:
 - 'mvn clean deploy -s ci_settings.xml -e'

– ci_settings.xml :


<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
 <localRepository/>
 <interactiveMode/>
 <offline/>
 <pluginGroups/>
 <servers>
 <server>
 <id>uib-gitlab-maven</id>
 <configuration>
 <httpHeaders>
 <property>
 <name>Deploy-Token</name>
 <value>example_deploy_token</value>
 </property>
 </httpHeaders>
 </configuration>
 </server>
 </servers>
 <mirrors/>
 <proxies/>
 <profiles/>
 <activeProfiles/>
</settings>

– pom.xml :


<repositories>
 <repository>
 <id>uib-gitlab-maven</id>
 <url>https://git.app.uib.no/api/v4/projects/1719/packages/maven</url>
 <layout>default</layout>
 <releases>
 <enabled>true</enabled>
 </releases>
 <snapshots>
 <enabled>true</enabled>
 </snapshots>
 </repository>
 </repositories>
 <distributionManagement>
 <repository>
 <id>uib-gitlab-maven</id>
 <url>https://git.app.uib.no/api/v4/projects/1719/packages/maven</url>
 </repository>
 <snapshotRepository>
 <id>uib-gitlab-maven</id>
 <url>https://git.app.uib.no/api/v4/projects/1719/packages/maven</url>
 </snapshotRepository>
 </distributionManagement>

Greetings,
Carlos