dummy GK now executes emulator specific entrypoint scripts specified in Dockerfiles...

[osm/vim-emu.git] / src / emuvim / api / sonata / dummygatekeeper.py

diff --git a/src/emuvim/api/sonata/dummygatekeeper.py b/src/emuvim/api/sonata/dummygatekeeper.py
index 2047ff8..c6421dc 100755 (executable)
--- a/src/emuvim/api/sonata/dummygatekeeper.py
+++ b/src/emuvim/api/sonata/dummygatekeeper.py
@@ -14,6 +14,7 @@ import yaml
 from docker import Client as DockerClient
 from flask import Flask, request
 import flask_restful as fr
+from collections import defaultdict
 
 logging.basicConfig()
 LOG = logging.getLogger("sonata-dummy-gatekeeper")
@@ -31,8 +32,7 @@ BUILD_DOCKERFILE = False
 GK_STANDALONE_MODE = False
 
 # should a new version of an image be pulled even if its available
-FORCE_PULL = True
-
+FORCE_PULL = False
 
 class Gatekeeper(object):
 
@@ -78,6 +78,7 @@ class Service(object):
         self.local_docker_files = dict()
         self.remote_docker_image_urls = dict()
         self.instances = dict()
+        self.vnfname2num = dict()
 
     def onboard(self):
         """
@@ -126,16 +127,33 @@ class Service(object):
             self.instances[instance_uuid]["vnf_instances"].append(vnfi)
 
         # 3. Configure the chaining of the network functions (currently only E-Line links supported)
+        nfid2name = defaultdict(lambda :"NotExistingNode", 
+                                reduce(lambda x,y: dict(x, **y),
+                                       map(lambda d:{d["vnf_id"]:d["vnf_name"]},
+                                           self.nsd["network_functions"])))
+        
         vlinks = self.nsd["virtual_links"]
         fwd_links = self.nsd["forwarding_graphs"][0]["constituent_virtual_links"]
         eline_fwd_links = [l for l in vlinks if (l["id"] in fwd_links) and (l["connectivity_type"] == "E-Line")]
 
+        cookie = 1 # not clear why this is needed - to check with Steven
         for link in eline_fwd_links:
             src_node, src_port = link["connection_points_reference"][0].split(":")
             dst_node, dst_port = link["connection_points_reference"][1].split(":")
 
-            network = self.vnfds[src_node].get("dc").net  # there should be a cleaner way to find the DCNetwork
-            network.setChain(src_node, dst_node, vnf_src_interface=src_port, vnf_dst_interface=dst_port)
+            srcname = nfid2name[src_node]
+            dstname = nfid2name[dst_node]
+            LOG.debug("src name: "+srcname+" dst name: "+dstname)
+
+            if (srcname in self.vnfds) and (dstname in self.vnfds) :
+                network = self.vnfds[srcname].get("dc").net  # there should be a cleaner way to find the DCNetwork
+                src_vnf = self.vnfname2num[srcname]
+                dst_vnf = self.vnfname2num[dstname]
+                ret = network.setChain(src_vnf, dst_vnf, vnf_src_interface=src_port, vnf_dst_interface=dst_port, bidirectional = True, cmd="add-flow", cookie = cookie)
+                cookie += 1
+
+        # 4. run the emulator specific entrypoint scripts in the VNFIs of this service instance
+        self._trigger_emulator_start_scripts_in_vnfis(self.instances[instance_uuid]["vnf_instances"])
 
         LOG.info("Service started. Instance id: %r" % instance_uuid)
         return instance_uuid
@@ -162,10 +180,21 @@ class Service(object):
             # 3. do the dc.startCompute(name="foobar") call to run the container
             # TODO consider flavors, and other annotations
             intfs = vnfd.get("connection_points")
-            vnfi = target_dc.startCompute(GK.get_next_vnf_name(), network=intfs, image=docker_name, flavor_name="small")
-            # 6. store references to the compute objects in self.instances
+            self.vnfname2num[vnf_name] = GK.get_next_vnf_name()
+            LOG.info("VNF "+vnf_name+" mapped to "+self.vnfname2num[vnf_name]+" on dc "+str(vnfd.get("dc")))
+            vnfi = target_dc.startCompute(self.vnfname2num[vnf_name], network=intfs, image=docker_name, flavor_name="small")
             return vnfi
 
+    def _trigger_emulator_start_scripts_in_vnfis(self, vnfi_list):
+        for vnfi in vnfi_list:
+            config = vnfi.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])
+                    LOG.info("Executing entrypoint script in %r: %r" % (vnfi.name, cmd))
+                    vnfi.cmdPrint(cmd)
+
     def _unpack_service_package(self):
         """
         unzip *.son file and store contents in CATALOG_FOLDER/services/<service_uuid>/