Log VM OS version, Sample VNF branch/commit ID

Added debug logs to track VM, Sample VNF details during testing:
 - Virtual machine OS, kernel version;
 - Sample VNF branch, commit ID.

JIRA: YARDSTICK-1499

Change-Id: I243c435809d4541dfdb8c7c3466f50c5d524ac00
Signed-off-by: Stepan Andrushko <stepanx.andrushko@intel.com>

3 files changed, 84 insertions, 0 deletions

diff --git a/yardstick/benchmark/contexts/standalone/model.py b/yardstick/benchmark/contexts/standalone/model.py
index aa5fdd391..a15426872 100644
--- a/yardstick/benchmark/contexts/standalone/model.py
+++ b/yardstick/benchmark/contexts/standalone/model.py
@@ -26,6 +26,7 @@ import xml.etree.ElementTree as ET
 from yardstick import ssh
 from yardstick.common import constants
 from yardstick.common import exceptions
+from yardstick.common import utils as common_utils
 from yardstick.common import yaml_loader
 from yardstick.network_services.utils import PciAddress
 from yardstick.network_services.helpers.cpu import CpuSysCores
@@ -554,6 +555,16 @@ class StandaloneContextHelper(object):
             ip = cls.get_mgmt_ip(connection, node["mac"], mgmtip, node)
             if ip:
                 node["ip"] = ip
+                client = ssh.SSH.from_node(node)
+                LOG.debug("OS version: %s",
+                          common_utils.get_os_version(client))
+                LOG.debug("Kernel version: %s",
+                          common_utils.get_kernel_version(client))
+                vnfs_data = common_utils.get_sample_vnf_info(client)
+                for vnf_name, vnf_data in vnfs_data.items():
+                    LOG.debug("VNF name: '%s', commit ID/branch: '%s'",
+                              vnf_name, vnf_data["branch_commit"])
+                    LOG.debug("%s", vnf_data["md5_result"])
         return nodes
 
     @classmethod
diff --git a/yardstick/common/utils.py b/yardstick/common/utils.py
index 9eba896e2..7475f6991 100644
--- a/yardstick/common/utils.py
+++ b/yardstick/common/utils.py
@@ -19,6 +19,7 @@ import datetime
 import errno
 import importlib
 import ipaddress
+import json
 import logging
 import os
 import pydoc
@@ -629,3 +630,47 @@ def safe_cast(value, type_to_convert, default_value):
         return _type(value)
     except ValueError:
         return default_value
+
+
+def get_os_version(ssh_client):
+    """Return OS version.
+
+    :param ssh_client: SSH
+    :return str: Linux OS versions
+    """
+    os_ver = ssh_client.execute("cat /etc/lsb-release")[1]
+    return os_ver
+
+
+def get_kernel_version(ssh_client):
+    """Return kernel version.
+
+    :param ssh_client: SSH
+    :return str: Linux kernel versions
+    """
+    kernel_ver = ssh_client.execute("uname -a")[1]
+    return kernel_ver
+
+
+def get_sample_vnf_info(ssh_client,
+                        json_file='/opt/nsb_bin/yardstick_sample_vnf.json'):
+    """Return sample VNF data.
+
+    :param ssh_client: SSH
+    :param json_file: str
+    :return dict: information about sample VNF
+    """
+    rc, json_str, err = ssh_client.execute("cat %s" % json_file)
+    logger.debug("cat  %s: %s, rc: %s, err: %s", json_file, json_str, rc, err)
+
+    if rc:
+        return {}
+    json_data = json.loads(json_str)
+    for vnf_data in json_data.values():
+        out = ssh_client.execute("md5sum %s" % vnf_data["path_vnf"])[1]
+        md5 = out.split()[0].strip()
+        if md5 == vnf_data["md5"]:
+            vnf_data["md5_result"] = "MD5 checksum is valid"
+        else:
+            vnf_data["md5_result"] = "MD5 checksum is invalid"
+    return json_data
diff --git a/yardstick/tests/unit/common/test_utils.py b/yardstick/tests/unit/common/test_utils.py
index 6b8d81907..8fed5ecf1 100644
--- a/yardstick/tests/unit/common/test_utils.py
+++ b/yardstick/tests/unit/common/test_utils.py
@@ -1433,3 +1433,31 @@ class SetupHugepagesTestCase(unittest.TestCase):
         self.assertEqual(hp_size_kb, 1024)
         self.assertEqual(hp_number, 10)
         self.assertEqual(hp_number_set, 5)
+
+
+class GetOSSampleInfoTestCase(unittest.TestCase):
+
+    def test_get_os_version(self, *args):
+        ssh = mock.Mock()
+        ssh.execute.return_value = (0, "18.04", "")
+        utils.get_os_version(ssh)
+        ssh.execute.assert_called_once_with("cat /etc/lsb-release")
+
+    def test_get_kernel_version(self, *args):
+        ssh = mock.Mock()
+        ssh.execute.return_value = (0, "Linux", "")
+        utils.get_kernel_version(ssh)
+        ssh.execute.assert_called_once_with("uname -a")
+
+    def test_get_sample_vnf_info(self, *args):
+        json_out = """
+        {"UDP_Replay": {
+            "branch_commit": "47123bfc1b3c0d0b01884aebbce1a3e09ad7ddb0",
+            "md5": "4577702f6d6848380bd912232a1b9ca5",
+            "path_vnf": "/opt/nsb_bin/UDP_Replay"
+            }
+        }"""
+        json_file = '/opt/nsb_bin/yardstick_sample_vnf.json'
+        ssh = mock.Mock()
+        ssh.execute.return_value = (0, json_out, "")
+        utils.get_sample_vnf_info(ssh, json_file)