Kubernetes plugin containers can't connect back to Jenkins
Do you have a Root directory not writable message in the container log?
[...]Exception in thread "main" java.lang.RuntimeException: Root directory not writable at hudson.remoting.FileSystemJarCache.<init>(FileSystemJarCache.java:44) at hudson.remoting.Engine.<init>(Engine.java:139) at hudson.remoting.jnlp.Main.createEngine(Main.java:164) at hudson.remoting.jnlp.Main.main(Main.java:148) at hudson.remoting.jnlp.Main._main(Main.java:144) at hudson.remoting.jnlp.Main.main(Main.java:110)In this case, you might have a problem similar to this.
PS: If you cannot see the logs, try removing the "Allocate pseudotty" option