Yardstick virtualenv support
[yardstick.git] / yardstick / benchmark / contexts / node.py
index 78bce82..a4a2cfc 100644 (file)
@@ -7,19 +7,25 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
-import sys
+from __future__ import absolute_import
+import errno
+import subprocess
 import os
-import yaml
+import collections
 import logging
 
+import yaml
+import pkg_resources
+
+from yardstick import ssh
 from yardstick.benchmark.contexts.base import Context
-from yardstick.definitions import YARDSTICK_ROOT_PATH
+from yardstick.common import constants as consts
 
 LOG = logging.getLogger(__name__)
 
 
 class NodeContext(Context):
-    '''Class that handle nodes info'''
+    """Class that handle nodes info"""
 
     __context_type__ = "Node"
 
@@ -30,64 +36,165 @@ class NodeContext(Context):
         self.controllers = []
         self.computes = []
         self.baremetals = []
-        super(self.__class__, self).__init__()
+        self.env = {}
+        super(NodeContext, self).__init__()
+
+    def read_config_file(self):
+        """Read from config file"""
+
+        with open(self.file_path) as stream:
+            LOG.info("Parsing pod file: %s", self.file_path)
+            cfg = yaml.load(stream)
+        return cfg
 
     def init(self, attrs):
-        '''initializes itself from the supplied arguments'''
+        """initializes itself from the supplied arguments"""
         self.name = attrs["name"]
         self.file_path = attrs.get("file", "pod.yaml")
-        if not os.path.exists(self.file_path):
-            self.file_path = os.path.join(YARDSTICK_ROOT_PATH, self.file_path)
-
-        LOG.info("Parsing pod file: %s", self.file_path)
 
         try:
-            with open(self.file_path) as stream:
-                cfg = yaml.load(stream)
+            cfg = self.read_config_file()
         except IOError as ioerror:
-            sys.exit(ioerror)
+            if ioerror.errno == errno.ENOENT:
+                self.file_path = \
+                    os.path.join(consts.YARDSTICK_ROOT_PATH, self.file_path)
+                cfg = self.read_config_file()
+            else:
+                raise
 
         self.nodes.extend(cfg["nodes"])
         self.controllers.extend([node for node in cfg["nodes"]
-                                if node["role"] == "Controller"])
+                                 if node["role"] == "Controller"])
         self.computes.extend([node for node in cfg["nodes"]
-                             if node["role"] == "Compute"])
+                              if node["role"] == "Compute"])
         self.baremetals.extend([node for node in cfg["nodes"]
-                               if node["role"] == "Baremetal"])
+                                if node["role"] == "Baremetal"])
         LOG.debug("Nodes: %r", self.nodes)
         LOG.debug("Controllers: %r", self.controllers)
         LOG.debug("Computes: %r", self.computes)
         LOG.debug("BareMetals: %r", self.baremetals)
 
+        self.env = attrs.get('env', {})
+        LOG.debug("Env: %r", self.env)
+
     def deploy(self):
-        '''don't need to deploy'''
-        pass
+        config_type = self.env.get('type', '')
+        if config_type == 'ansible':
+            self._dispatch_ansible('setup')
+        elif config_type == 'script':
+            self._dispatch_script('setup')
 
     def undeploy(self):
-        '''don't need to undeploy'''
-        pass
+        config_type = self.env.get('type', '')
+        if config_type == 'ansible':
+            self._dispatch_ansible('teardown')
+        elif config_type == 'script':
+            self._dispatch_script('teardown')
+        super(NodeContext, self).undeploy()
+
+    def _dispatch_script(self, key):
+        steps = self.env.get(key, [])
+        for step in steps:
+            for host, info in step.items():
+                self._execute_script(host, info)
+
+    def _dispatch_ansible(self, key):
+        try:
+            step = self.env[key]
+        except KeyError:
+            pass
+        else:
+            self._do_ansible_job(step)
+
+    def _do_ansible_job(self, path):
+        cmd = 'ansible-playbook -i inventory.ini %s' % path
+        p = subprocess.Popen(cmd, shell=True, cwd=consts.ANSIBLE_DIR)
+        p.communicate()
 
     def _get_server(self, attr_name):
-        '''lookup server info by name from context
+        """lookup server info by name from context
         attr_name: a name for a server listed in nodes config file
-        '''
-        if type(attr_name) is dict:
+        """
+        if isinstance(attr_name, collections.Mapping):
             return None
 
         if self.name != attr_name.split(".")[1]:
             return None
         node_name = attr_name.split(".")[0]
-        nodes = [n for n in self.nodes
-                 if n["name"] == node_name]
-        if len(nodes) == 0:
+        matching_nodes = (n for n in self.nodes if n["name"] == node_name)
+
+        try:
+            # A clone is created in order to avoid affecting the
+            # original one.
+            node = dict(next(matching_nodes))
+        except StopIteration:
             return None
-        elif len(nodes) > 1:
-            LOG.error("Duplicate nodes!!!")
-            LOG.error("Nodes: %r", nodes)
-            sys.exit(-1)
-
-        # A clone is created in order to avoid affecting the
-        # original one.
-        node = dict(nodes[0])
+
+        try:
+            duplicate = next(matching_nodes)
+        except StopIteration:
+            pass
+        else:
+            raise ValueError("Duplicate nodes!!! Nodes: %s %s",
+                             (matching_nodes, duplicate))
+
         node["name"] = attr_name
         return node
+
+    def _execute_script(self, node_name, info):
+        if node_name == 'local':
+            self._execute_local_script(info)
+        else:
+            self._execute_remote_script(node_name, info)
+
+    def _execute_remote_script(self, node_name, info):
+        prefix = self.env.get('prefix', '')
+        script, options = self._get_script(info)
+
+        script_file = pkg_resources.resource_filename(prefix, script)
+
+        self._get_client(node_name)
+        self.client._put_file_shell(script_file, '~/{}'.format(script))
+
+        cmd = 'sudo bash {} {}'.format(script, options)
+        status, stdout, stderr = self.client.execute(cmd)
+        if status:
+            raise RuntimeError(stderr)
+
+    def _execute_local_script(self, info):
+        script, options = self._get_script(info)
+        script = os.path.join(consts.YARDSTICK_ROOT_PATH, script)
+        cmd = ['bash', script, options]
+
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
+        LOG.debug('\n%s', p.communicate()[0])
+
+    def _get_script(self, info):
+        return info.get('script'), info.get('options', '')
+
+    def _get_client(self, node_name):
+        node = self._get_node_info(node_name.strip())
+
+        if node is None:
+            raise SystemExit('No such node')
+
+        user = node.get('user', 'ubuntu')
+        ssh_port = node.get("ssh_port", ssh.DEFAULT_PORT)
+        ip = node.get('ip')
+        pwd = node.get('password')
+        key_fname = node.get('key_filename', '/root/.ssh/id_rsa')
+
+        if pwd is not None:
+            LOG.debug("Log in via pw, user:%s, host:%s, password:%s",
+                      user, ip, pwd)
+            self.client = ssh.SSH(user, ip, password=pwd, port=ssh_port)
+        else:
+            LOG.debug("Log in via key, user:%s, host:%s, key_filename:%s",
+                      user, ip, key_fname)
+            self.client = ssh.SSH(user, ip, key_filename=key_fname,
+                                  port=ssh_port)
+
+        self.client.wait(timeout=600)
+
+    def _get_node_info(self, name):
+        return next((n for n in self.nodes if n['name'].strip() == name))