Adding flags to ssh cmd to bypass host checking

* Moved the ssh command to a central spot

fixes bug 1100001

Change-Id: Ic055fe065a5d6ca8023bd15c4ef2a17e25970e50

reddwarf/tests/__init__.py

@@ -2,3 +2,4 @@ DBAAS_API = "dbaas.api"
 PRE_INSTANCES = "dbaas.api.pre_instances"
 INSTANCES = "dbaas.api.instances"
 POST_INSTANCES = "dbaas.api.post_instances"
+SSH_CMD = 'ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no'

reddwarf/tests/api/instances_actions.py

@@ -216,18 +216,20 @@ class RebootTestBase(ActionTestBase):
     def mess_up_mysql(self):
         """Ruin MySQL's ability to restart."""
         self.fix_mysql()  # kill files
-        cmd = """ssh %s 'sudo cp /dev/null /var/lib/mysql/ib_logfile%d'"""
+        cmd = """%s %s 'sudo cp /dev/null /var/lib/mysql/ib_logfile%d'"""
         for index in range(2):
-            full_cmd = cmd % (self.instance_address, index)
+            full_cmd = cmd % (tests.SSH_CMD, self.instance_address, index)
             print("RUNNING COMMAND: %s" % full_cmd)
             util.process(full_cmd)
 
     def fix_mysql(self):
         """Fix MySQL's ability to restart."""
         if not FAKE_MODE:
-            cmd = "ssh %s 'sudo rm /var/lib/mysql/ib_logfile%d'"
+            cmd = "%s %s 'sudo rm /var/lib/mysql/ib_logfile%d'"
             for index in range(2):
-                util.process(cmd % (self.instance_address, index))
+                util.process(cmd % (tests.SSH_CMD,
+                                    self.instance_address,
+                                    index))
 
     def wait_for_failure_status(self):
         """Wait until status becomes running."""

reddwarf/tests/util/__init__.py

@@ -55,6 +55,7 @@ from proboscis.asserts import ASSERTION_ERROR
 from proboscis import SkipTest
 from reddwarfclient import Dbaas
 from reddwarfclient.client import ReddwarfHTTPClient
+from reddwarf import tests
 from reddwarf.tests.util import test_config as CONFIG
 from reddwarf.tests.util.client import TestClient as TestClient
 from reddwarf.tests.util.users import Requirements
@@ -232,8 +233,8 @@ def mysql_connection():
 
 def find_mysql_procid_on_instance(ip_address):
     """Returns the process id of MySql on an instance if running, or None."""
-    cmd = "ssh %s ps aux | grep /usr/sbin/mysqld " \
-          "| awk '{print $2}'" % ip_address
+    cmd = "%s %s ps aux | grep /usr/sbin/mysqld " \
+          "| awk '{print $2}'" % (tests.SSH_CMD, ip_address)
     stdout, stderr = process(cmd)
     try:
         return int(stdout)

reddwarf/tests/util/mysql.py

@@ -1,6 +1,7 @@
 import pexpect
 import re
 from sqlalchemy import create_engine
+from reddwarf import tests
 from reddwarf.tests.config import CONFIG
 from sqlalchemy.exc import OperationalError
 try:
@@ -105,7 +106,7 @@ class PexpectMySqlConnection(object):
         self.host = host
         self.user = user
         self.password = password
-        cmd = 'ssh %s' % ssh_args
+        cmd = '%s %s' % (tests.SSH_CMD, ssh_args)
         self.proc = pexpect.spawn(cmd)
         print(cmd)
         self.proc.expect(":~\$", timeout=self.TIME_OUT)