I configure the Kubernetes container template and set the container name as "jnlp" to use my own images as agent. But when I build the job, the slave can't connect to master. Jenkins master logs as below

INFO: Created Pod: kube-system/jnlp-n3vb7 May 13, 2019 8:13:36 AM okhttp3.internal.platform.Platform log INFO: ALPN callback dropped: HTTP/2 is disabled. Is alpn-boot on the boot class path? May 13, 2019 8:13:40 AM org.csanchez.jenkins.plugins.kubernetes.KubernetesLauncher launch INFO: Pod is running: kube-system/jnlp-n3vb7 May 13, 2019 8:13:40 AM org.csanchez.jenkins.plugins.kubernetes.KubernetesLauncher launch INFO: Waiting for agent to connect (0/100): jnlp-n3vb7 May 13, 2019 8:13:41 AM org.csanchez.jenkins.plugins.kubernetes.KubernetesLauncher launch INFO: Waiting for agent to connect (1/100): jnlp-n3vb7 May 13, 2019 8:13:42 AM org.csanchez.jenkins.plugins.kubernetes.KubernetesLauncher launch INFO: Waiting for agent to connect (2/100): jnlp-n3vb7

Please help.