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Bug
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Resolution: Not A Defect
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Major
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None
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At the VM host:
libvirt-1.2.8-16.el7_1.4.x86_64
systemd-208-20.el7_1.6.x86_64
at Jenkins host:
libvirt 1.2.8
systemd 208
libvirt-0.4.7.jar
I am able to do a "virsh connect qemu+ssh:" command line and is able to get console.
While configuring if do not select "Use Native Java libvirt client" then, then during testing the connection I am getting the below error.
org.libvirt.LibvirtException: Cannot recv data: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). : Connection reset by peer
At the same time the daemon prints no messages (/var/log/messages at host).
But if "Use Native Java libvirt client" is selected then, I could see messages like below at the host.
Sep 29 15:20:01 XXX systemd: Starting Session 12256 of user root.
Sep 29 15:20:01 XXX systemd: Started Session 12256 of user root.
Sep 29 15:20:01 XXX systemd: Failed to reset devices.list on /machine.slice: Invalid argument
But in Jenkins, I am getting the error "java.lang.reflect.UndeclaredThrowableException".
Sep 29, 2015 3:24:45 PM net.schmizz.sshj.transport.TransportImpl init
INFO: Client identity string: SSH-2.0-SSHJ_0_9_0
Sep 29, 2015 3:24:45 PM net.schmizz.sshj.transport.TransportImpl init
INFO: Server identity string: SSH-2.0-OpenSSH_6.6.1
Sep 29, 2015 3:24:46 PM net.schmizz.sshj.connection.channel.direct.SessionChannel exec
INFO: Will request to exec `netcat -U /var/run/libvirt/libvirt-sock`
Sep 29, 2015 3:24:46 PM com.nirima.libvirt.xdr.XDRInvocationHandler invoke
INFO: Invoking connectOpen
Sep 29, 2015 3:24:46 PM hudson.plugins.libvirt.Hypervisor$DescriptorImpl doTestConnection
WARNING: Failed to check hypervisor connection to 10.43.16.25 as root/******
hudson.plugins.libvirt.lib.VirtException: java.lang.reflect.UndeclaredThrowableException
at hudson.plugins.libvirt.lib.jlibvirt.JLibVirtConnectImpl.<init>(JLibVirtConnectImpl.java:27)
at hudson.plugins.libvirt.lib.ConnectionBuilder.build(ConnectionBuilder.java:87)
at hudson.plugins.libvirt.Hypervisor$DescriptorImpl.doTestConnection(Hypervisor.java:455)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121)
[JENKINS-30691] Unable to connect to remote server
Debashis Prusty
added a comment - As I mentioned earlier, ssh is working fine(see output below). After adding the key to store, the plugin started working. I think this should be documented or else plugin should be enhanced to accept external passwords.
vagrant@webdev:~$ virsh -c qemu+ssh://root@X.X.X.X/system list --all
root@X.X.X.X's password:
Id Name State
----------------------------------
406 laa_6wind running
- 6wind shut off
- generic-app shut off
vagrant@webdev:~$
Debashis Prusty
added a comment - As I mentioned earlier, ssh is working fine(see output below). After adding the key to store, the plugin started working. I think this should be documented or else plugin should be enhanced to accept external passwords.
vagrant@webdev:~$ virsh -c qemu+ssh://root@X.X.X.X/system list --all
root@X.X.X.X's password:
Id Name State
----------------------------------
406 laa_6wind running
6wind shut off
generic-app shut off
vagrant@webdev:~$ 
G. Kr.
added a comment - can you make a suggestion were should what exactly be documented ?
when you configure the cloud you also need to configure credentials, is that too hidden away in the UI? also what do you mean with accepting external passwords ?
G. Kr.
added a comment - can you make a suggestion were should what exactly be documented ?
when you configure the cloud you also need to configure credentials, is that too hidden away in the UI? also what do you mean with accepting external passwords ? 
Ravindra Singh
added a comment - I am still facing the issue with Centos 6.5 , Centos 7 and Ubuntu 14.04
virsh -c qmue+ssh://root@servername/system list – works fine from commandline
tried all possible combincation of credentials with both username/password and ssh name/phasphrase.
Have already setup the password less ssh between my jenkins server and the hypervisor still facing the issue with the plugin.
Ravindra Singh
added a comment - I am still facing the issue with Centos 6.5 , Centos 7 and Ubuntu 14.04
virsh -c qmue+ssh://root@servername/system list – works fine from commandline
tried all possible combincation of credentials with both username/password and ssh name/phasphrase.
Have already setup the password less ssh between my jenkins server and the hypervisor still facing the issue with the plugin. Ravindra Singh
added a comment - Already commented G. Kr.
added a comment - raboos can you check whether this is related to JENKINS-25258 
tarun munjal
added a comment - Hi Debashish, can you explain what do you mean by "After adding the key to store, the plugin started working.'?
tarun munjal
added a comment - Hi Debashish, can you explain what do you mean by "After adding the key to store, the plugin started working.'? 
Bastian Germann
added a comment - The README says: "You will have to set up public key authentication for the connection that can be used by the Jenkins service user."
I think not following that advise is the problem here. Please check if the virsh connection works for the system user that you run Jenkins with and that user has the SSH private key available by default.
I am closing this issue. If you still have issues please create a new one.
Bastian Germann
added a comment - The README says: "You will have to set up public key authentication for the connection that can be used by the Jenkins service user."
I think not following that advise is the problem here. Please check if the virsh connection works for the system user that you run Jenkins with and that user has the SSH private key available by default.
I am closing this issue. If you still have issues please create a new one. 
please provide more configuration details
jenkins and plugin versions, credentials type used (i.e. user+password or ssh key)
also please test plain ssh connection and paste debug output (ssh -v ...), make sure you are testing as the jenkins user
thanks