As shown here this regression has been introduced very recently:
https://jenkins.opendaylight.org/releng/job/netconf-csit-1node-callhome-only-neon/
The operational info just shows DISCONNECTED:
/restconf/operational/odl-netconf-callhome-server:netconf-callhome-server
{ "netconf-callhome-server": { "allowed-devices": { "device": [ { "unique-id": "netopeer", "callhome-status:device-status": "DISCONNECTED", "ssh-host-key": "AAAAB3NzaC1yc2EAAAADAQABAAABAQDF2UazsHh/amdGT2xpmn5rpSrybUl66cic082NMRS5qEyVyTc8mvgzj4m1gXP/cVOJmZ6TR9AxCUcNnc7MZMpemg4n0kawM4wwwWP43Z46UG342Dz1B1yCgi9WTzsF7/6J1d57xNYIVmX6IQBhg+hbglyM4L658mM22ZkZuWw2AMbMK46HFbRIfwjoqziFi8jjJWU5WtZL5YpCofRb9PkRuH/ejxs/NJXgKA9vEOf8pXQJ8bGNa8WKHBBqidaRdOWa7EMGPIr6bApzN4P/jiY1m3uodaVI64WOg88oc9h1RP6gvJkN8eSBFFLVNuyOgxyNpxXTAyJ84mlTJgDVfmF7" } ] } } }
Karaf log shows this WARN:
2019-05-06T10:33:39,798 | WARN | nioEventLoopGroup-4-2 | DefaultAuthFuture | 132 - org.apache.sshd.osgi - 2.2.0 | notifyListener(DefaultAuthFuture[id=ssh-connection][value=org.apache.sshd.common.SshException: No more authentication methods available]) failed (NullPointerException) to invoke org.opendaylight.netconf.callhome.protocol.NetconfCallHomeServer$2@600d8dea: null
When it worked I can see this instead:
/restconf/operational/odl-netconf-callhome-server:netconf-callhome-server
{ "netconf-callhome-server": { "allowed-devices": { "device": [ { "unique-id": "netopeer", "callhome-status:device-status": "FAILED_AUTH_FAILURE", "ssh-host-key": "AAAAB3NzaC1yc2EAAAADAQABAAABAQDF2UazsHh/amdGT2xpmn5rpSrybUl66cic082NMRS5qEyVyTc8mvgzj4m1gXP/cVOJmZ6TR9AxCUcNnc7MZMpemg4n0kawM4wwwWP43Z46UG342Dz1B1yCgi9WTzsF7/6J1d57xNYIVmX6IQBhg+hbglyM4L658mM22ZkZuWw2AMbMK46HFbRIfwjoqziFi8jjJWU5WtZL5YpCofRb9PkRuH/ejxs/NJXgKA9vEOf8pXQJ8bGNa8WKHBBqidaRdOWa7EMGPIr6bApzN4P/jiY1m3uodaVI64WOg88oc9h1RP6gvJkN8eSBFFLVNuyOgxyNpxXTAyJ84mlTJgDVfmF7" } ] } } }
And in the Karaf log:
2019-04-30T15:43:31,011 | INFO | nioEventLoopGroup-4-2 | CallhomeStatusReporter | 276 - org.opendaylight.netconf.callhome-provider - 1.6.1 | Setting auth failed status for callhome device id:netopeer.