Well, it was a stupid thing the URL that I pass to the Docker container is the JNLP agent URL ( https://jenkins:9443/computer/jnlp-agent/slave-agent.jnlp ), it should be the Jenkins URL (https://jenkins:9443 <https://jenkins:9443/computer/jnlp-agent/slave-agent.jnlp>), so that's my error.
This command works as expected :palmface: docker run --name jnlp-agent -it --rm --network net jenkins/jnlp-slave -disableHttpsCertValidation -credentials jenkins:"SuP3rP4ssw0rd" -url https://jenkins:9443 <https://jenkins:9443/computer/jnlp-agent/slave-agent.jnlp> 224a6accfb5b9728e3db3dfc43ae8d2d986b24c09b2d8701497ca13c474d3dde jnlp-agent BTW the error message is completely unrelated to the fail that was what confuses me. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/88f0e8d3-97c6-42d6-8a53-850b73bc2f05%40googlegroups.com.