modules.opnfv: fuel adapter: Switch to MCP

[releng.git] / modules / opnfv / utils / ssh_utils.py

diff --git a/modules/opnfv/utils/ssh_utils.py b/modules/opnfv/utils/ssh_utils.py
index d17f5ae..2272717 100644 (file)
--- a/modules/opnfv/utils/ssh_utils.py
+++ b/modules/opnfv/utils/ssh_utils.py
@@ -15,6 +15,27 @@ import paramiko
 from opnfv.utils import opnfv_logger as logger
 
 logger = logger.Logger("SSH utils").getLogger()
+SSH_TIMEOUT = 60
+
+''' Monkey Patch paramiko _custom_start_client '''
+# We are using paramiko 2.1.1 and in the CI in the SFC
+# test we are facing this issue:
+# https://github.com/robotframework/SSHLibrary/issues/158
+# The fix was merged in paramiko 2.1.3 in this PR:
+# https://github.com/robotframework/SSHLibrary/pull/159/files
+# Until we upgrade we can use this monkey patch to work
+# around the issue
+
+
+def _custom_start_client(self, *args, **kwargs):
+    self.banner_timeout = 45
+    self._orig_start_client(*args, **kwargs)
+
+
+paramiko.transport.Transport._orig_start_client = \
+    paramiko.transport.Transport.start_client
+paramiko.transport.Transport.start_client = _custom_start_client
+''' Monkey Patch paramiko _custom_start_client '''
 
 
 def get_ssh_client(hostname,
@@ -28,9 +49,12 @@ def get_ssh_client(hostname,
             client = paramiko.SSHClient()
         else:
             client = ProxyHopClient()
+            proxy_password = proxy.get('password', None)
+            proxy_pkey_file = proxy.get('pkey_file', '/root/.ssh/id_rsa')
             client.configure_jump_host(proxy['ip'],
                                        proxy['username'],
-                                       proxy['password'])
+                                       proxy_password,
+                                       proxy_pkey_file)
         if client is None:
             raise Exception('Could not connect to client')
 
@@ -40,11 +64,13 @@ def get_ssh_client(hostname,
             client.load_system_host_keys()
             client.connect(hostname,
                            username=username,
-                           pkey=key)
+                           pkey=key,
+                           timeout=SSH_TIMEOUT)
         else:
             client.connect(hostname,
                            username=username,
-                           password=password)
+                           password=password,
+                           timeout=SSH_TIMEOUT)
 
         return client
     except Exception as e:
@@ -92,11 +118,14 @@ class ProxyHopClient(paramiko.SSHClient):
                             jh_ssh_key='/root/.ssh/id_rsa'):
         self.proxy_ip = jh_ip
         self.proxy_ssh_key = jh_ssh_key
+        self.local_ssh_key = os.path.join(os.getcwd(),
+                                          jh_ssh_key.split('/')[-1])
         self.proxy_ssh = paramiko.SSHClient()
         self.proxy_ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
         self.proxy_ssh.connect(jh_ip,
                                username=jh_user,
-                               password=jh_pass)
+                               password=jh_pass,
+                               timeout=SSH_TIMEOUT)
         self.proxy_transport = self.proxy_ssh.get_transport()
 
     def connect(self, hostname, port=22, username='root', password=None,
@@ -114,8 +143,12 @@ class ProxyHopClient(paramiko.SSHClient):
                                     self.local_ssh_key)
             if get_file_res is None:
                 raise Exception('Could\'t fetch SSH key from jump host')
-            proxy_key = (paramiko.RSAKey
-                         .from_private_key_file(self.local_ssh_key))
+            if self.proxy_ssh_key.split('/')[-1] == 'id_dsa':
+                proxy_key = (paramiko.DSSKey
+                             .from_private_key_file(self.local_ssh_key))
+            else:
+                proxy_key = (paramiko.RSAKey
+                             .from_private_key_file(self.local_ssh_key))
 
             self.proxy_channel = self.proxy_transport.open_channel(
                 "direct-tcpip",
@@ -126,7 +159,8 @@ class ProxyHopClient(paramiko.SSHClient):
             super(ProxyHopClient, self).connect(hostname,
                                                 username=username,
                                                 pkey=proxy_key,
-                                                sock=self.proxy_channel)
+                                                sock=self.proxy_channel,
+                                                timeout=timeout)
             os.remove(self.local_ssh_key)
         except Exception as e:
             logger.error(e)