Binding nexus credentials to maven deploy job in jenkins build - maven

Question

I have a maven pom project with defined distributionManagement section in pom.xml
<project>
...
<distributionManagement>
<repository>
<id>my-repo</id>
<url>http://nexus.my.local/repository/my-private</url>
</repository>
</distributionManagement>
</project>
in the settings.xml file I have set up the servers section
<servers>
<server>
<id>my-repo</id>
<username>${env.CI_DEPLOY_USERNAME}</username>
<password>${env.CI_DEPLOY_PASSWORD}</password>
</server>
</servers>
in jenkins, I binded the credentials to these variables
But doing mvn clean deploy gives me following error
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project XY:
Failed to deploy artifacts:
Could not transfer artifact XY:pom:1.0.0 from/to my-repo (http://nexus.my.local/repository/my-private):
Failed to transfer file: http://nexus.my.local/repository/my-private/XY-1.0.0.pom.
Return code is: 401, ReasonPhrase: Unauthorized. -> [Help 1]
When I echoed the variable ${CI_DEPLOY_USERNAME} in shell before build, it gave me **** output -> I think that is ok.
Where else should I provide the variables? Is my project's settings.xml get used in maven deploy command?

Answer 1

Using environment variables as properties in Maven requires that they're prefixed with env., so it should be:
<servers>
<server>
<id>my-repo</id>
<username>${env.CI_DEPLOY_USERNAME}</username>
<password>${env.CI_DEPLOY_PASSWORD}</password>
</server>
</servers>
Reference:
http://maven.apache.org/pom.html#Properties