def test_ssh_proxy_auth_fail(self):
"""Test failures while connecting via proxy"""
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
self.server.kill()
server = start_server(listen_socket,
fail_auth=True)
proxy_server_socket = make_socket('127.0.0.2')
proxy_server_port = proxy_server_socket.getsockname()[1]
proxy_server = start_server(proxy_server_socket)
proxy_user = '******'
proxy_password = '******'
gevent.sleep(2)
client = ParallelSSHClient([self.host], port=listen_port,
pkey=self.user_key,
proxy_host='127.0.0.2',
proxy_port=proxy_server_port,
proxy_user=proxy_user,
proxy_password='******',
proxy_pkey=self.user_key,
)
gevent.sleep(2)
self.assertRaises(AuthenticationException, client.run_command, self.fake_cmd)
del client
server.kill()
proxy_server.kill()
def test_pssh_hosts_iterator_hosts_modification(self):
"""Test using iterator as host list and modifying host list in place"""
server2_socket = make_socket("127.0.0.2", port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
server3_socket = make_socket("127.0.0.3", port=self.listen_port)
server3_port = server3_socket.getsockname()[1]
server3 = start_server(server3_socket)
hosts = [self.host, "127.0.0.2"]
client = ParallelSSHClient(iter(hosts), port=self.listen_port, pkey=self.user_key, pool_size=1)
output = client.run_command(self.fake_cmd)
stdout = [list(output[k]["stdout"]) for k in output]
expected_stdout = [[self.fake_resp], [self.fake_resp]]
self.assertEqual(
len(hosts),
len(output),
msg="Did not get output from all hosts. Got output for " "%s/%s hosts" % (len(output), len(hosts)),
)
# Run again without re-assigning host list, should do nothing
output = client.run_command(self.fake_cmd)
self.assertFalse(hosts[0] in output, msg="Expected no host output, got %s" % (output,))
self.assertFalse(output, msg="Expected empty output, got %s" % (output,))
# Re-assigning host list with new hosts should work
hosts = ["127.0.0.2", "127.0.0.3"]
client.hosts = iter(hosts)
output = client.run_command(self.fake_cmd)
self.assertEqual(
len(hosts),
len(output),
msg="Did not get output from all hosts. Got output for " "%s/%s hosts" % (len(output), len(hosts)),
)
self.assertTrue(hosts[1] in output, msg="Did not get output for new host %s" % (hosts[1],))
del client, server2, server3
def test_ssh_proxy_auth_fail(self):
"""Test failures while connecting via proxy"""
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
self.server.kill()
server = start_server(listen_socket,
fail_auth=True)
proxy_server_socket = make_socket('127.0.0.2')
proxy_server_port = proxy_server_socket.getsockname()[1]
proxy_server = start_server(proxy_server_socket)
proxy_user = '******'
proxy_password = '******'
gevent.sleep(2)
client = ParallelSSHClient([self.host], port=listen_port,
pkey=self.user_key,
proxy_host='127.0.0.2',
proxy_port=proxy_server_port,
proxy_user=proxy_user,
proxy_password='******',
proxy_pkey=self.user_key,
)
gevent.sleep(2)
self.assertRaises(AuthenticationException, client.run_command, self.fake_cmd)
del client
server.kill()
proxy_server.kill()
def test_per_host_tuple_args(self):
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
server3_socket = make_socket('127.0.0.3', port=self.listen_port)
server3_port = server3_socket.getsockname()[1]
server3 = start_server(server3_socket)
hosts = [self.host, '127.0.0.2', '127.0.0.3']
host_args = ('arg1', 'arg2', 'arg3')
cmd = 'echo %s'
client = ParallelSSHClient(hosts, port=self.listen_port,
pkey=self.user_key)
output = client.run_command(cmd, host_args=host_args)
for i, host in enumerate(hosts):
expected = [host_args[i]]
stdout = list(output[host]['stdout'])
self.assertEqual(expected, stdout)
self.assertTrue(output[host]['exit_code'] == 0)
host_args = (('arg1', 'arg2'), ('arg3', 'arg4'), ('arg5', 'arg6'),)
cmd = 'echo %s %s'
output = client.run_command(cmd, host_args=host_args)
for i, host in enumerate(hosts):
expected = ["%s %s" % host_args[i]]
stdout = list(output[host]['stdout'])
self.assertEqual(expected, stdout)
self.assertTrue(output[host]['exit_code'] == 0)
self.assertRaises(HostArgumentException, client.run_command,
cmd, host_args=[host_args[0]])
def test_per_host_dict_args(self):
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
server3_socket = make_socket('127.0.0.3', port=self.listen_port)
server3_port = server3_socket.getsockname()[1]
server3 = start_server(server3_socket)
hosts = [self.host, '127.0.0.2', '127.0.0.3']
hosts_gen = (h for h in hosts)
host_args = [dict(zip(('host_arg1', 'host_arg2',),
('arg1-%s' % (i,), 'arg2-%s' % (i,),)))
for i, _ in enumerate(hosts)]
cmd = 'echo %(host_arg1)s %(host_arg2)s'
client = ParallelSSHClient(hosts, port=self.listen_port,
pkey=self.user_key)
output = client.run_command(cmd, host_args=host_args)
for i, host in enumerate(hosts):
expected = ["%(host_arg1)s %(host_arg2)s" % host_args[i]]
stdout = list(output[host]['stdout'])
self.assertEqual(expected, stdout)
self.assertTrue(output[host]['exit_code'] == 0)
self.assertRaises(HostArgumentException, client.run_command,
cmd, host_args=[host_args[0]])
# Host list generator should work also
client.hosts = hosts_gen
output = client.run_command(cmd, host_args=host_args)
for i, host in enumerate(hosts):
expected = ["%(host_arg1)s %(host_arg2)s" % host_args[i]]
stdout = list(output[host]['stdout'])
self.assertEqual(expected, stdout)
self.assertTrue(output[host]['exit_code'] == 0)
client.hosts = (h for h in hosts)
self.assertRaises(HostArgumentException, client.run_command,
cmd, host_args=[host_args[0]])
def test_ssh_proxy_auth(self):
"""Test connecting to remote destination via SSH proxy
client -> proxy -> destination
Proxy SSH server accepts no commands and sends no responses, only
proxies to destination. Destination accepts a command as usual."""
proxy_server_socket = make_socket('127.0.0.2')
proxy_server_port = proxy_server_socket.getsockname()[1]
proxy_server = start_server(proxy_server_socket)
proxy_user = '******'
proxy_password = '******'
gevent.sleep(2)
client = ParallelSSHClient([self.host], port=self.listen_port,
pkey=self.user_key,
proxy_host='127.0.0.2',
proxy_port=proxy_server_port,
proxy_user=proxy_user,
proxy_password='******',
proxy_pkey=self.user_key,
)
gevent.sleep(2)
output = client.run_command(self.fake_cmd)
stdout = list(output[self.host]['stdout'])
expected_stdout = [self.fake_resp]
self.assertEqual(expected_stdout, stdout,
msg="Got unexpected stdout - %s, expected %s" % (
stdout, expected_stdout,))
self.assertEqual(client.host_clients[self.host].proxy_user, proxy_user)
self.assertEqual(client.host_clients[self.host].proxy_password, proxy_password)
self.assertTrue(client.host_clients[self.host].proxy_pkey)
self.server.kill()
proxy_server.kill()
def test_ssh_proxy_auth(self):
"""Test connecting to remote destination via SSH proxy
client -> proxy -> destination
Proxy SSH server accepts no commands and sends no responses, only
proxies to destination. Destination accepts a command as usual."""
proxy_server_socket = make_socket('127.0.0.2')
proxy_server_port = proxy_server_socket.getsockname()[1]
proxy_server = start_server(proxy_server_socket)
proxy_user = '******'
proxy_password = '******'
gevent.sleep(2)
client = ParallelSSHClient([self.host], port=self.listen_port,
pkey=self.user_key,
proxy_host='127.0.0.2',
proxy_port=proxy_server_port,
proxy_user=proxy_user,
proxy_password='******',
proxy_pkey=self.user_key,
)
gevent.sleep(2)
output = client.run_command(self.fake_cmd)
stdout = list(output[self.host]['stdout'])
expected_stdout = [self.fake_resp]
self.assertEqual(expected_stdout, stdout,
msg="Got unexpected stdout - %s, expected %s" % (
stdout, expected_stdout,))
self.assertEqual(client.host_clients[self.host].proxy_user, proxy_user)
self.assertEqual(client.host_clients[self.host].proxy_password, proxy_password)
self.assertTrue(client.host_clients[self.host].proxy_pkey)
self.server.kill()
proxy_server.kill()
def test_ssh_exception(self):
"""Test that we get ssh exception in output with correct arguments"""
self.server.kill()
host = '127.0.0.10'
_socket = make_socket(host)
port = _socket.getsockname()[1]
server = start_server(_socket, ssh_exception=True)
hosts = [host]
client = ParallelSSHClient(hosts, port=port,
user='******', password='******',
pkey=paramiko.RSAKey.generate(1024))
output = client.run_command(self.fake_cmd, stop_on_errors=False)
gevent.sleep(1)
client.pool.join()
self.assertTrue('exception' in output[host],
msg="Got no exception for host %s - expected connection error" % (
host,))
try:
raise output[host]['exception']
except SSHException, ex:
self.assertEqual(ex.args[1], host,
msg="Exception host argument is %s, should be %s" % (
ex.args[1], host,))
self.assertEqual(ex.args[2], port,
msg="Exception port argument is %s, should be %s" % (
ex.args[2], port,))
def test_authentication_exception(self):
"""Test that we get authentication exception in output with correct arguments"""
self.server.kill()
_socket = make_socket(self.host)
port = _socket.getsockname()[1]
server = start_server(_socket, fail_auth=True)
hosts = [self.host]
client = ParallelSSHClient(hosts,
port=port,
pkey=self.user_key,
agent=self.agent)
output = client.run_command(self.fake_cmd, stop_on_errors=False)
client.pool.join()
self.assertTrue(
'exception' in output[self.host],
msg="Got no exception for host %s - expected connection error" %
(self.host, ))
try:
raise output[self.host]['exception']
except AuthenticationException, ex:
self.assertEqual(
ex.args[1],
self.host,
msg="Exception host argument is %s, should be %s" % (
ex.args[1],
self.host,
))
self.assertEqual(
ex.args[2],
port,
msg="Exception port argument is %s, should be %s" % (
ex.args[2],
port,
))
def test_pssh_hosts_more_than_pool_size(self):
"""Test we can successfully run on more hosts than our pool size and
get logs for all hosts"""
# Make a second server on the same port as the first one
server2_socket = make_socket("127.0.0.2", port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
hosts = [self.host, "127.0.0.2"]
client = ParallelSSHClient(hosts, port=self.listen_port, pkey=self.user_key, pool_size=1)
output = client.run_command(self.fake_cmd)
stdout = [list(output[k]["stdout"]) for k in output]
expected_stdout = [[self.fake_resp], [self.fake_resp]]
self.assertEqual(
len(hosts),
len(output),
msg="Did not get output from all hosts. Got output for " "%s/%s hosts" % (len(output), len(hosts)),
)
self.assertEqual(
expected_stdout,
stdout,
msg="Did not get expected output from all hosts. \
Got %s - expected %s"
% (stdout, expected_stdout),
)
del client
del server2
def test_pssh_client_hosts_list_part_failure(self):
"""Test getting output for remainder of host list in the case where one
host in the host list has a failure"""
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket, fail_auth=True)
hosts = [self.host, '127.0.0.2']
client = ParallelSSHClient(hosts,
port=self.listen_port,
pkey=self.user_key,
agent=self.agent)
output = client.run_command(self.fake_cmd,
stop_on_errors=False)
client.join(output)
self.assertTrue(hosts[0] in output,
msg="Successful host does not exist in output - output is %s" % (output,))
self.assertTrue(hosts[1] in output,
msg="Failed host does not exist in output - output is %s" % (output,))
self.assertTrue('exception' in output[hosts[1]],
msg="Failed host %s has no exception in output - %s" % (hosts[1], output,))
try:
raise output[hosts[1]]['exception']
except AuthenticationException:
pass
else:
raise Exception("Expected AuthenticationException, got %s instead" % (
output[hosts[1]]['exception'],))
del client
server2.kill()
def test_pssh_client_timeout(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server_timeout=0.2
client_timeout=server_timeout-0.1
server = start_server(listen_socket,
timeout=server_timeout)
client = ParallelSSHClient([self.host], port=listen_port,
pkey=self.user_key,
timeout=client_timeout)
output = client.run_command(self.fake_cmd)
# Handle exception
try:
gevent.sleep(server_timeout+0.2)
client.pool.join()
if not server.exception:
raise Exception(
"Expected gevent.Timeout from socket timeout, got none")
raise server.exception
except gevent.Timeout:
pass
# chan_timeout = output[self.host]['channel'].gettimeout()
# self.assertEqual(client_timeout, chan_timeout,
# msg="Channel timeout %s does not match requested timeout %s" %(
# chan_timeout, client_timeout,))
del client
server.join()
def test_ssh_exception(self):
"""Test that we get ssh exception in output with correct arguments"""
self.server.kill()
host = '127.0.0.10'
_socket = make_socket(host)
port = _socket.getsockname()[1]
server = start_server(_socket, ssh_exception=True)
hosts = [host]
client = ParallelSSHClient(hosts, port=port,
user='******', password='******',
pkey=paramiko.RSAKey.generate(1024))
output = client.run_command(self.fake_cmd, stop_on_errors=False)
gevent.sleep(.2)
client.pool.join()
self.assertTrue('exception' in output[host],
msg="Got no exception for host %s - expected connection error" % (
host,))
try:
raise output[host]['exception']
except SSHException, ex:
self.assertEqual(ex.args[1], host,
msg="Exception host argument is %s, should be %s" % (
ex.args[1], host,))
self.assertEqual(ex.args[2], port,
msg="Exception port argument is %s, should be %s" % (
ex.args[2], port,))
def test_openssh_config(self):
"""Test reading and using OpenSSH config file"""
config_file = tempfile.NamedTemporaryFile()
_host = "127.0.0.2"
_user = "******"
_listen_socket = make_socket(_host)
_server = start_server(_listen_socket)
_port = _listen_socket.getsockname()[1]
_key = USER_KEY_PATH
content = [
("""Host %s\n""" % (_host, )),
(""" User %s\n""" % (_user, )),
(""" Port %s\n""" % (_port, )),
(""" IdentityFile %s\n""" % (_key, )),
]
config_file.writelines([s.encode('utf-8') for s in content])
config_file.flush()
host, user, port, pkey = utils.read_openssh_config(
_host, config_file=config_file.name)
client = SSHClient(_host, _openssh_config_file=config_file.name)
config_file.close()
self.assertEqual(host, _host)
self.assertEqual(user, _user)
self.assertEqual(port, _port)
self.assertTrue(pkey)
self.assertEqual(client.host, _host)
self.assertEqual(client.user, _user)
self.assertEqual(client.port, _port)
self.assertTrue(client.pkey)
del _server, _listen_socket
def test_openssh_config(self):
"""Test reading and using OpenSSH config file"""
config_file = tempfile.NamedTemporaryFile()
_host = "127.0.0.2"
_user = "******"
_listen_socket = make_socket(_host)
_server = start_server(_listen_socket)
_port = _listen_socket.getsockname()[1]
_key = USER_KEY_PATH
content = [("""Host %s\n""" % (_host,)),
(""" User %s\n""" % (_user,)),
(""" Port %s\n""" % (_port,)),
(""" IdentityFile %s\n""" % (_key,)),
]
config_file.writelines([s.encode('utf-8') for s in content])
config_file.flush()
host, user, port, pkey = utils.read_openssh_config(
_host, config_file=config_file.name)
client = SSHClient(_host, _openssh_config_file=config_file.name)
config_file.close()
self.assertEqual(host, _host)
self.assertEqual(user, _user)
self.assertEqual(port, _port)
self.assertTrue(pkey)
self.assertEqual(client.host, _host)
self.assertEqual(client.user, _user)
self.assertEqual(client.port, _port)
self.assertTrue(client.pkey)
del _server, _listen_socket
def test_host_config(self):
"""Test per-host configuration functionality of ParallelSSHClient"""
hosts = ['127.0.0.%01d' % n for n in xrange(1,3)]
host_config = dict.fromkeys(hosts)
servers = []
user = '******'
password = '******'
for host in hosts:
_socket = make_socket(host)
port = _socket.getsockname()[1]
host_config[host] = {}
host_config[host]['port'] = port
host_config[host]['user'] = user
host_config[host]['password'] = password
server = start_server(_socket, fail_auth=hosts.index(host))
servers.append((server, port))
pkey_data = load_private_key(PKEY_FILENAME)
host_config[hosts[0]]['private_key'] = pkey_data
client = ParallelSSHClient(hosts, host_config=host_config)
output = client.run_command(self.fake_cmd, stop_on_errors=False)
client.join(output)
for host in hosts:
self.assertTrue(host in output)
try:
raise output[hosts[1]]['exception']
except AuthenticationException, ex:
pass
def test_pssh_hosts_more_than_pool_size(self):
"""Test we can successfully run on more hosts than our pool size and
get logs for all hosts"""
# Make a second server on the same port as the first one
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
hosts = [self.host, '127.0.0.2']
client = ParallelSSHClient(
hosts,
port=self.listen_port,
pkey=self.user_key,
pool_size=1,
)
output = client.run_command(self.fake_cmd)
stdout = [list(output[k]['stdout']) for k in output]
expected_stdout = [[self.fake_resp], [self.fake_resp]]
self.assertEqual(
len(hosts),
len(output),
msg="Did not get output from all hosts. Got output for \
%s/%s hosts" % (
len(output),
len(hosts),
))
self.assertEqual(expected_stdout,
stdout,
msg="Did not get expected output from all hosts. \
Got %s - expected %s" % (
stdout,
expected_stdout,
))
del client
del server2
def test_host_config(self):
"""Test per-host configuration functionality of ParallelSSHClient"""
hosts = ['127.0.0.%01d' % n for n in xrange(1,3)]
host_config = dict.fromkeys(hosts)
servers = []
user = '******'
password = '******'
for host in hosts:
_socket = make_socket(host)
port = _socket.getsockname()[1]
host_config[host] = {}
host_config[host]['port'] = port
host_config[host]['user'] = user
host_config[host]['password'] = password
server = start_server(_socket, fail_auth=hosts.index(host))
servers.append((server, port))
pkey_data = load_private_key(PKEY_FILENAME)
host_config[hosts[0]]['private_key'] = pkey_data
client = ParallelSSHClient(hosts, host_config=host_config)
output = client.run_command(self.fake_cmd, stop_on_errors=False)
client.join(output)
for host in hosts:
self.assertTrue(host in output)
try:
raise output[hosts[1]]['exception']
except AuthenticationException, ex:
pass
def test_pssh_client_timeout(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server_timeout=0.2
client_timeout=server_timeout-0.1
server = start_server(listen_socket,
timeout=server_timeout)
client = ParallelSSHClient([self.host], port=listen_port,
pkey=self.user_key,
timeout=client_timeout)
output = client.run_command(self.fake_cmd)
# Handle exception
try:
gevent.sleep(server_timeout+0.2)
client.pool.join()
if not server.exception:
raise Exception(
"Expected gevent.Timeout from socket timeout, got none")
raise server.exception
except gevent.Timeout:
pass
# chan_timeout = output[self.host]['channel'].gettimeout()
# self.assertEqual(client_timeout, chan_timeout,
# msg="Channel timeout %s does not match requested timeout %s" %(
# chan_timeout, client_timeout,))
del client
server.kill()
def test_pssh_client_hosts_list_part_failure(self):
"""Test getting output for remainder of host list in the case where one
host in the host list has a failure"""
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket, fail_auth=True)
hosts = [self.host, '127.0.0.2']
client = ParallelSSHClient(hosts,
port=self.listen_port,
pkey=self.user_key,
agent=self.agent)
output = client.run_command(self.fake_cmd,
stop_on_errors=False)
self.assertFalse(client.finished(output))
client.join(output)
self.assertTrue(client.finished(output))
self.assertTrue(hosts[0] in output,
msg="Successful host does not exist in output - output is %s" % (output,))
self.assertTrue(hosts[1] in output,
msg="Failed host does not exist in output - output is %s" % (output,))
self.assertTrue('exception' in output[hosts[1]],
msg="Failed host %s has no exception in output - %s" % (hosts[1], output,))
try:
raise output[hosts[1]]['exception']
except AuthenticationException:
pass
else:
raise Exception("Expected AuthenticationException, got %s instead" % (
output[hosts[1]]['exception'],))
del client
server2.kill()
def setUp(self):
self.fake_cmd = "echo me"
self.fake_resp = "me"
self.user_key = USER_KEY
self.host = "127.0.0.1"
self.listen_socket = make_socket(self.host)
self.listen_port = self.listen_socket.getsockname()[1]
self.server = start_server(self.listen_socket)
def setUp(self):
self.fake_cmd = 'echo me'
self.fake_resp = 'me'
self.user_key = USER_KEY
self.host = '127.0.0.1'
self.listen_socket = make_socket(self.host)
self.listen_port = self.listen_socket.getsockname()[1]
self.server = start_server(self.listen_socket)
def setUp(self):
self.fake_cmd = 'echo "me"'
self.fake_resp = 'me'
self.long_cmd = lambda lines: 'for (( i=0; i<%s; i+=1 )) do echo $i; sleep 1; done' % (lines,)
self.user_key = USER_KEY
self.host = '127.0.0.1'
self.listen_socket = make_socket(self.host)
self.listen_port = self.listen_socket.getsockname()[1]
self.server = start_server(self.listen_socket)
def setUp(self):
self.fake_cmd = 'echo "me"'
self.fake_resp = "me"
self.long_cmd = lambda lines: "for (( i=0; i<%s; i+=1 )) do echo $i; sleep 1; done" % (lines,)
self.user_key = USER_KEY
self.host = "127.0.0.1"
self.listen_socket = make_socket(self.host)
self.listen_port = self.listen_socket.getsockname()[1]
self.server = start_server(self.listen_socket)
self.agent = FakeAgent()
self.agent.add_key(USER_KEY)
self.client = ParallelSSHClient([self.host], port=self.listen_port, pkey=self.user_key, agent=self.agent)
def test_pssh_client_ssh_exception(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket,
ssh_exception=True)
client = ParallelSSHClient([self.host],
user='******', password='******',
port=listen_port,
pkey=RSAKey.generate(1024),
)
self.assertRaises(SSHException, client.run_command, self.fake_cmd)
del client
server.kill()
def test_pssh_client_ssh_exception(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket,
ssh_exception=True)
client = ParallelSSHClient([self.host],
user='******', password='******',
port=listen_port,
pkey=paramiko.RSAKey.generate(1024),
)
self.assertRaises(SSHException, client.run_command, self.fake_cmd)
del client
server.kill()
def test_pssh_hosts_iterator_hosts_modification(self):
"""Test using iterator as host list and modifying host list in place"""
server2_socket = make_socket('127.0.0.2', port=self.listen_port)
server2_port = server2_socket.getsockname()[1]
server2 = start_server(server2_socket)
server3_socket = make_socket('127.0.0.3', port=self.listen_port)
server3_port = server3_socket.getsockname()[1]
server3 = start_server(server3_socket)
hosts = [self.host, '127.0.0.2']
client = ParallelSSHClient(
iter(hosts),
port=self.listen_port,
pkey=self.user_key,
pool_size=1,
)
output = client.run_command(self.fake_cmd)
stdout = [list(output[k]['stdout']) for k in output]
expected_stdout = [[self.fake_resp], [self.fake_resp]]
self.assertEqual(len(hosts), len(output),
msg="Did not get output from all hosts. Got output for " \
"%s/%s hosts" % (len(output), len(hosts),))
# Run again without re-assigning host list, should do nothing
output = client.run_command(self.fake_cmd)
self.assertFalse(hosts[0] in output,
msg="Expected no host output, got %s" % (output, ))
self.assertFalse(output,
msg="Expected empty output, got %s" % (output, ))
# Re-assigning host list with new hosts should work
hosts = ['127.0.0.2', '127.0.0.3']
client.hosts = iter(hosts)
output = client.run_command(self.fake_cmd)
self.assertEqual(len(hosts), len(output),
msg="Did not get output from all hosts. Got output for " \
"%s/%s hosts" % (len(output), len(hosts),))
self.assertTrue(hosts[1] in output,
msg="Did not get output for new host %s" %
(hosts[1], ))
del client, server2, server3
def test_pssh_client_auth_failure(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket, fail_auth=True)
client = ParallelSSHClient([self.host], port=listen_port, pkey=self.user_key, agent=self.agent)
cmd = client.exec_command(self.fake_cmd)[0]
# Handle exception
try:
cmd.get()
raise Exception("Expected AuthenticationException, got none")
except AuthenticationException:
pass
del client
server.join()
def setUp(self):
self.fake_cmd = 'echo "me"'
self.fake_resp = 'me'
self.long_cmd = lambda lines: 'for (( i=0; i<%s; i+=1 )) do echo $i; sleep 1; done' % (lines,)
self.user_key = USER_KEY
self.host = '127.0.0.1'
self.listen_socket = make_socket(self.host)
self.listen_port = self.listen_socket.getsockname()[1]
self.server = start_server(self.listen_socket)
self.agent = FakeAgent()
self.agent.add_key(USER_KEY)
self.client = ParallelSSHClient([self.host], port=self.listen_port,
pkey=self.user_key,
agent=self.agent)
def example_hosts():
'''Fixture providing two temporary SSH servers
Returns a nightbus.ssh_config.SSHConfig instance.
'''
server_host_1 = '127.0.0.1'
server_socket_1 = embedded_server.make_socket(server_host_1)
server_listen_port_1 = server_socket_1.getsockname()[1]
server_1 = embedded_server.start_server(server_socket_1)
server_host_2 = '127.0.0.2'
server_socket_2 = embedded_server.make_socket(server_host_2)
server_listen_port_2 = server_socket_2.getsockname()[1]
server_2 = embedded_server.start_server(server_socket_2)
hosts = '''
%s: { port: %s }
%s: { port: %s }
''' % (server_host_1, server_listen_port_1, server_host_2,
server_listen_port_2)
return nightbus.ssh_config.SSHConfig(hosts)
def test_pssh_client_ssh_exception(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket, ssh_exception=True)
client = ParallelSSHClient(
[self.host], user="******", password="******", port=listen_port, pkey=paramiko.RSAKey.generate(1024)
)
# Handle exception
try:
client.run_command(self.fake_cmd)
raise Exception("Expected SSHException, got none")
except SSHException:
pass
del client
server.join()
def test_pssh_client_auth_failure(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket, fail_auth=True)
client = ParallelSSHClient([self.host], port=listen_port,
pkey=self.user_key,
agent=self.agent)
cmd = client.exec_command(self.fake_cmd)[0]
# Handle exception
try:
cmd.get()
raise Exception("Expected AuthenticationException, got none")
except AuthenticationException:
pass
del client
server.kill()
def test_pssh_client_ssh_exception(self):
listen_socket = make_socket(self.host)
listen_port = listen_socket.getsockname()[1]
server = start_server(listen_socket, ssh_exception=True)
client = ParallelSSHClient(
[self.host],
user='******',
password='******',
port=listen_port,
pkey=paramiko.RSAKey.generate(1024),
)
# Handle exception
try:
client.run_command(self.fake_cmd)
raise Exception("Expected SSHException, got none")
except SSHException:
pass
del client
server.join()
def test_ssh_proxy(self):
"""Test connecting to remote destination via SSH proxy
client -> proxy -> destination
Proxy SSH server accepts no commands and sends no responses, only
proxies to destination. Destination accepts a command as usual."""
proxy_server_socket = make_socket("127.0.0.2")
proxy_server_port = proxy_server_socket.getsockname()[1]
proxy_server = start_server(proxy_server_socket)
gevent.sleep(2)
client = ParallelSSHClient(
[self.host], port=self.listen_port, pkey=self.user_key, proxy_host="127.0.0.2", proxy_port=proxy_server_port
)
gevent.sleep(2)
output = client.run_command(self.fake_cmd)
stdout = list(output[self.host]["stdout"])
expected_stdout = [self.fake_resp]
self.assertEqual(
expected_stdout, stdout, msg="Got unexpected stdout - %s, expected %s" % (stdout, expected_stdout)
)
self.server.kill()
proxy_server.kill()
def test_authentication_exception(self):
"""Test that we get authentication exception in output with correct arguments"""
self.server.kill()
_socket = make_socket(self.host)
port = _socket.getsockname()[1]
server = start_server(_socket, fail_auth=True)
hosts = [self.host]
client = ParallelSSHClient(hosts, port=port, pkey=self.user_key, agent=self.agent)
output = client.run_command(self.fake_cmd, stop_on_errors=False)
client.pool.join()
self.assertTrue(
"exception" in output[self.host],
msg="Got no exception for host %s - expected connection error" % (self.host,),
)
try:
raise output[self.host]["exception"]
except AuthenticationException, ex:
self.assertEqual(
ex.args[1], self.host, msg="Exception host argument is %s, should be %s" % (ex.args[1], self.host)
)
self.assertEqual(ex.args[2], port, msg="Exception port argument is %s, should be %s" % (ex.args[2], port))
def test_pssh_copy_file(self):
"""Test parallel copy file"""
test_file_data = 'test'
local_filename = 'test_file'
remote_test_dir, remote_filename = 'remote_test_dir', 'test_file_copy'
remote_filename = os.path.sep.join([remote_test_dir, remote_filename])
test_file = open(local_filename, 'w')
test_file.writelines([test_file_data + os.linesep])
test_file.close()
server = start_server({ self.fake_cmd : self.fake_resp },
self.listen_socket)
client = ParallelSSHClient([self.host], port=self.listen_port,
pkey=self.user_key)
cmds = client.copy_file(local_filename, remote_filename)
cmds[0].get()
self.assertTrue(os.path.isdir(remote_test_dir),
msg="SFTP create remote directory failed")
self.assertTrue(os.path.isfile(remote_filename),
msg="SFTP copy failed")
for filepath in [local_filename, remote_filename]:
os.unlink(filepath)
del client
server.join()
