Unified command execution in Docker containers.

[osm/vim-emu.git] / src / emuvim / api / openstack / compute.py

diff --git a/src/emuvim/api/openstack/compute.py b/src/emuvim/api/openstack/compute.py
index 405fa6f..d7e944b 100755 (executable)
--- a/src/emuvim/api/openstack/compute.py
+++ b/src/emuvim/api/openstack/compute.py
@@ -491,18 +491,19 @@ class OpenstackCompute(object):
                         port.assigned_container = c
 
         # Start the real emulator command now as specified in the dockerfile
-        # ENV SON_EMU_CMD
         config = c.dcinfo.get("Config", dict())
         env = config.get("Env", list())
         for env_var in env:
-            if "SON_EMU_CMD=" in env_var:
-                cmd = str(env_var.split("=")[1])
-                server.son_emu_command = cmd
+            var, cmd = map(str.strip, map(str, env_var.split('=', 1)))
+            if var == "SON_EMU_CMD" or var == "VIM_EMU_CMD":
+                LOG.info("Executing script in '{}': {}={}"
+                         .format(server.name, var, cmd))
                 # execute command in new thread to ensure that GK is not
                 # blocked by VNF
                 t = threading.Thread(target=c.cmdPrint, args=(cmd,))
                 t.daemon = True
                 t.start()
+                break  # only execute one command
 
     def stop_compute(self, server):
         """
@@ -687,12 +688,6 @@ class OpenstackCompute(object):
         :return: Returns the created port.
         :rtype: :class:`heat.resources.port`
         """
-        port = self.find_port_by_name_or_id(name)
-        if port is not None and not stack_operation:
-            LOG.warning(
-                "Creating port with name %s failed, as it already exists" % name)
-            raise Exception("Port with name %s already exists." % name)
-        LOG.debug("Creating port with name %s" % name)
         port = Port(name)
         if not stack_operation:
             self.ports[port.id] = port
@@ -708,12 +703,19 @@ class OpenstackCompute(object):
         :return: Returns the port reference if it was found or None
         :rtype: :class:`heat.resources.port`
         """
+        # find by id
         if name_or_id in self.ports:
             return self.ports[name_or_id]
-        for port in self.ports.values():
-            if port.name == name_or_id or port.template_name == name_or_id:
-                return port
-
+        # find by name
+        matching_ports = filter(
+            lambda port: port.name == name_or_id or port.template_name == name_or_id,
+            self.ports.values()
+        )
+        matching_ports_count = len(matching_ports)
+        if matching_ports_count == 1:
+            return matching_ports[0]
+        if matching_ports_count > 1:
+            raise RuntimeError("Ambiguous port name %s" % name_or_id)
         return None
 
     def delete_port(self, name_or_id):