Traefik failing postStart

Traefik Traefik v2
1 
        lifecycle:
          postStart:
            httpGet:
              host: localhost
              path: /ping
              port: 9000
              scheme: HTTP

but deployment is getting:

  Warning  FailedPostStartHook  7m24s (x3 over 9m8s)   kubelet            PostStartHook failed
  Normal   Killing              7m24s (x3 over 9m8s)   kubelet            FailedPostStartHook