[JENKINS-71889] Unable to configure mTLS connection to Registry

My private docker registry is using mTLS (https://docs.docker.com/engine/security/certificates/#understand-the-configuration) to authenticate clients. Credentials provided via registryCredentialsId can only be used for providing username/password.

dockerfile {

    filename 'Dockerfile.jenkins'

    registryUrl 'https://registry/'

    registryCredentialsId 'client-certificate'

} 

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Originally reported by bbucko, imported from: Unable to configure mTLS connection to Registry

• status: Open
  
• priority: Minor
  
• component(s): docker-commons-plugin, docker-workflow-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-07
  

My private docker registry is using mTLS (https://docs.docker.com/engine/security/certificates/#understand-the-configuration) to authenticate clients. Credentials provided via registryCredentialsId can only be used for providing username/password.



dockerfile {

    filename 'Dockerfile.jenkins'

    registryUrl 'https://registry/'

    registryCredentialsId 'client-certificate'

}