Heat context code refactor part 2

Heat context code refactor to cater for the evolution of the
Yardstick framework.

Refactor runner_cfg host/target info handle, as specified at
https://etherpad.opnfv.org/p/yardstick_framework
step 4. Get general Context info (use Context.get).

Before this refactor host and target vm must have the same user name
and ssh key, that is not general enough for later extension.

test_case.yaml do NOT need to change.

JIRA: YARDSTICK-168

Change-Id: I5cfe868f3c6f633214ef550bc9676fe1de0709db
Signed-off-by: QiLiang <liangqi1@huawei.com>

1 files changed, 25 insertions, 21 deletions

diff --git a/yardstick/benchmark/scenarios/compute/lmbench.py b/yardstick/benchmark/scenarios/compute/lmbench.py
index d2558c936..03caff525 100644
--- a/yardstick/benchmark/scenarios/compute/lmbench.py
+++ b/yardstick/benchmark/scenarios/compute/lmbench.py
@@ -35,8 +35,9 @@ class Lmbench(base.Scenario):
 
     TARGET_SCRIPT = "lmbench_benchmark.bash"
 
-    def __init__(self, context):
-        self.context = context
+    def __init__(self, scenario_cfg, context_cfg):
+        self.scenario_cfg = scenario_cfg
+        self.context_cfg = context_cfg
         self.setup_done = False
 
     def setup(self):
@@ -44,12 +45,13 @@ class Lmbench(base.Scenario):
         self.target_script = pkg_resources.resource_filename(
             "yardstick.benchmark.scenarios.compute",
             Lmbench.TARGET_SCRIPT)
-        user = self.context.get("user", "ubuntu")
-        host = self.context.get("host", None)
-        key_filename = self.context.get('key_filename', "~/.ssh/id_rsa")
+        host = self.context_cfg["host"]
+        user = host.get("user", "ubuntu")
+        ip = host.get("ip", None)
+        key_filename = host.get('key_filename', "~/.ssh/id_rsa")
 
-        LOG.info("user:%s, host:%s", user, host)
-        self.client = ssh.SSH(user, host, key_filename=key_filename)
+        LOG.info("user:%s, host:%s", user, ip)
+        self.client = ssh.SSH(user, ip, key_filename=key_filename)
         self.client.wait(timeout=600)
 
         # copy script to host
@@ -58,13 +60,13 @@ class Lmbench(base.Scenario):
 
         self.setup_done = True
 
-    def run(self, args, result):
+    def run(self, result):
         """execute the benchmark"""
 
         if not self.setup_done:
             self.setup()
 
-        options = args['options']
+        options = self.scenario_cfg['options']
         stride = options.get('stride', 128)
         stop_size = options.get('stop_size', 16)
 
@@ -75,11 +77,10 @@ class Lmbench(base.Scenario):
         if status:
             raise RuntimeError(stderr)
 
-        result.update(json.loads(stdout))
-
-        if "sla" in args:
+        result.update({"latencies": json.loads(stdout)})
+        if "sla" in self.scenario_cfg:
             sla_error = ""
-            sla_max_latency = int(args['sla']['max_latency'])
+            sla_max_latency = int(self.scenario_cfg['sla']['max_latency'])
             for t_latency in result:
                 latency = t_latency['latency']
                 if latency > sla_max_latency:
@@ -92,20 +93,23 @@ def _test():
     """internal test function"""
     key_filename = pkg_resources.resource_filename('yardstick.resources',
                                                    'files/yardstick_key')
-    ctx = {'host': '172.16.0.137',
-           'user': 'ubuntu',
-           'key_filename': key_filename
-           }
+    ctx = {
+        'host': {
+            'ip': '10.229.47.137',
+            'user': 'root',
+            'key_filename': key_filename
+        }
+    }
 
     logger = logging.getLogger('yardstick')
     logger.setLevel(logging.DEBUG)
 
-    p = Lmbench(ctx)
-
     options = {'stride': 128, 'stop_size': 16}
-
     args = {'options': options}
-    result = p.run(args)
+    result = {}
+
+    p = Lmbench(args, ctx)
+    p.run(result)
     print result
 
 if __name__ == '__main__':