How to define pod with yaml in jenkinsci/kubernetes-plugin
Based on a quick look at your pipeline DSL and YAML spec. The following snippet is what a direct translation of your DSL would look like (untested).
apiVersion: v1kind: Podmetadata: labels: label: label spec: containers: - name: jnlp image: artifactory.baorg.com:5001/sum/coreimage:1 tty: true imagePullSecrets: - name: ad-artifactory-credIn your original configuration you specified that the default "jnlp" container not be used and instead use the container you specified. In your YAML version, you used the name "jenkins-slave" thereby indicating to the the plugin that you want the default jnlp container (jenkins/jnlp-slave:alpine) to be launched in the pod along with your "jenkins-slave" container.
As for why the pull fails, this is likely a network configuration issue (firewall or proxy) as indicated in the events. If you have access to the node, try doing a docker pull jenkins/jnlp-slave:aline manually to debug.