Tools » teuthology

teuthology/task/internal.py loses the host key in the commented out code below.

def connect(ctx, config):
    """ 
    Open a connection to a remote host.
    """ 
    log.info('Opening connections...')
    from ..orchestra import remote
    from ..orchestra import cluster
    remotes = []
    machs = []
    for name in ctx.config['targets'].iterkeys():
        machs.append(name)
    for t, key in ctx.config['targets'].iteritems():
        log.debug('connecting to %s', t)
        try:
            if ctx.config['sshkeys'] == 'ignore':
                key = None
        except (AttributeError, KeyError):
            pass
        """   DOES ANYONE KNOW WHY THESE NEXT 3 LINES ARE HERE?
        if key.startswith('ssh-rsa ') or key.startswith('ssh-dss '):
            if teuthology.is_vm(t):
                key = None
        """ 
        remotes.append(
            remote.Remote(name=t, host_key=key, keep_alive=True, console=None))
    ctx.cluster = cluster.Cluster()
    if 'roles' in ctx.config:
        for rem, roles in zip(remotes, ctx.config['roles']):
            assert all(isinstance(role, str) for role in roles), \
                "Roles in config must be strings: %r" % roles
            ctx.cluster.add(rem, roles)
            log.info('roles: %s - %s' % (rem, roles))
    else:
        for rem in remotes:
            ctx.cluster.add(rem, rem.name)

The results of running teuthology install before the indicated lines were commented out were:

014-07-22 14:02:56,542.542 INFO:teuthology.task.internal:Opening connections...
2014-07-22 14:02:56,543.543 DEBUG:teuthology.task.internal:connecting to ubuntu@vpm042.front.sepia.ceph.com
2014-07-22 14:03:05,148.148 INFO:teuthology.orchestra.connection:{'username': 'ubuntu', 'hostname': 'vpm042.front.sepia.ceph.com', 'timeout': 60}
2014-07-22 14:03:06,713.713 DEBUG:teuthology.task.internal:connecting to ubuntu@vpm034.front.sepia.ceph.com
2014-07-22 14:03:14,992.992 INFO:teuthology.orchestra.connection:{'username': 'ubuntu', 'hostname': 'vpm034.front.sepia.ceph.com', 'timeout': 60}
2014-07-22 14:03:16,201.201 ERROR:teuthology.run_tasks:Saw exception from tasks.
Traceback (most recent call last):
  File "/home/wusui/src/teuthology/teuthology/run_tasks.py", line 43, in run_tasks
    manager = run_one_task(taskname, ctx=ctx, config=config)
  File "/home/wusui/src/teuthology/teuthology/run_tasks.py", line 31, in run_one_task
    return fn(**kwargs)
  File "/home/wusui/src/teuthology/teuthology/task/internal.py", line 221, in connect
    remote.Remote(name=t, host_key=key, keep_alive=True, console=None))
  File "/home/wusui/src/teuthology/teuthology/orchestra/remote.py", line 50, in __init__
    self.ssh = ssh or self.connect()
  File "/home/wusui/src/teuthology/teuthology/orchestra/remote.py", line 55, in connect
    keep_alive=self.keep_alive)
  File "/home/wusui/src/teuthology/teuthology/orchestra/connection.py", line 99, in connect
    ssh.connect(**connect_args)
  File "/home/wusui/src/teuthology/virtualenv/local/lib/python2.7/site-packages/paramiko/client.py", line 262, in connect
    raise BadHostKeyException(hostname, server_key, our_server_key)
BadHostKeyException: ('vpm034.front.sepia.ceph.com', <paramiko.rsakey.RSAKey object at 0x2a0cf50>, <paramiko.rsakey.RSAKey object at 0x28e4490>)
2014-07-22 14:03:16,203.203 DEBUG:teuthology.run_tasks:Exception was not quenched, exiting: BadHostKeyException: ('vpm034.front.sepia.ceph.com', <paramiko.rsakey.RSAKey object at 0x2a0cf50>, <paramiko.rsakey.RSAKey object at 0x28e4490>)
2014-07-22 14:03:16,209.209 INFO:teuthology.run:Summary data:
{failure_reason: '(''vpm034.front.sepia.ceph.com'', <paramiko.rsakey.RSAKey object
    at 0x2a0cf50>, <paramiko.rsakey.RSAKey object at 0x28e4490>)', owner: wusui@aardvark,
  success: false}

Things seem to work better without those lines.