I recently got the Jenkins appliance running on Turnkey Hub. I tried connecting to a private git repository (I added my ssh key to the home directory of tomcat6 - which Jenkins runs under, added it to Jenkins and installed the ssh plugin, but so far I still haven't been able to connect). I even copied my known_hosts file from my system over to Jenkins, but I still keep getting the same error.

I changed the shell for the tomcat user to sh (it used to be /usr/false), and running 

$ ssh -vT git@bitbucket.org

OpenSSH_5.5p1 Debian-6+squeeze2, OpenSSL 0.9.8o 01 Jun 2010

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: Applying options for *

debug1: Applying options for bitbucket.org

debug1: Connecting to bitbucket.org [207.223.240.182] port 22.

debug1: Connection established.

debug1: identity file /usr/share/tomcat6/.ssh/id_rsa type -1

debug1: identity file /usr/share/tomcat6/.ssh/id_rsa-cert type -1

debug1: identity file /usr/share/tomcat6/.ssh/id_dsa type -1

debug1: identity file /usr/share/tomcat6/.ssh/id_dsa-cert type -1

debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3

debug1: match: OpenSSH_5.3 pat OpenSSH*

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_5.5p1 Debian-6+squeeze2

debug1: SSH2_MSG_KEXINIT sent

debug1: SSH2_MSG_KEXINIT received

debug1: kex: server->client aes128-ctr hmac-md5 none

debug1: kex: client->server aes128-ctr hmac-md5 none

debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent

debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP

debug1: SSH2_MSG_KEX_DH_GEX_INIT sent

debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY

Failed to add the host to the list of known hosts (/usr/share/tomcat6/.ssh/known_hosts).

debug1: ssh_rsa_verify: signature correct

debug1: SSH2_MSG_NEWKEYS sent

debug1: expecting SSH2_MSG_NEWKEYS

debug1: SSH2_MSG_NEWKEYS received

debug1: Roaming not allowed by server

debug1: SSH2_MSG_SERVICE_REQUEST sent

debug1: SSH2_MSG_SERVICE_ACCEPT received

debug1: Authentications that can continue: publickey

debug1: Next authentication method: publickey

debug1: Trying private key: /usr/share/tomcat6/.ssh/id_rsa

debug1: Trying private key: /usr/share/tomcat6/.ssh/id_dsa

debug1: No more authentication methods to try.

Permission denied (publickey).

I'm at my wits end at the moment, and am considering either getting tomcat to run as root or making my repo public. What can I do to get this working?