Refactored link finders

Mappings are now defined in a configuration file and fetched dynamically.

Change-Id: I250c22967fc66fc0aca173d4c9d65581d879b5d2
Signed-off-by: Ilia Abashin <abashinos@gmail.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/app/discover/link_finders/find_links_for_instance_vnics.py b/app/discover/link_finders/find_links_for_instance_vnics.py
new file mode 100644
index 0000000..7e0273d
--- /dev/null
+++ b/app/discover/link_finders/find_links_for_instance_vnics.py
@@ -0,0 +1,60 @@
+###############################################################################
+# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems)   #
+# and others                                                                  #
+#                                                                             #
+# All rights reserved. This program and the accompanying materials            #
+# are made available under the terms of the Apache License, Version 2.0       #
+# which accompanies this distribution, and is available at                    #
+# http://www.apache.org/licenses/LICENSE-2.0                                  #
+###############################################################################
+from discover.link_finders.find_links import FindLinks
+
+
+class FindLinksForInstanceVnics(FindLinks):
+    def __init__(self):
+        super().__init__()
+
+    def add_links(self):
+        self.log.info("adding links of type: instance-vnic")
+        vnics = self.inv.find_items({
+            "environment": self.get_env(),
+            "type": "vnic",
+            "vnic_type": "instance_vnic"
+        })
+        for v in vnics:
+            self.add_link_for_vnic(v)
+
+    def add_link_for_vnic(self, v):
+        instance = self.inv.get_by_id(self.get_env(), v["instance_id"])
+        if "network_info" not in instance:
+            self.log.warn("add_link_for_vnic: " +
+                          "network_info missing in instance: %s ",
+                          instance["id"])
+            return
+        host = self.inv.get_by_id(self.get_env(), instance["host"])
+        host_types = host["host_type"]
+        if "Network" not in host_types and "Compute" not in host_types:
+            return []
+        source = instance["_id"]
+        source_id = instance["id"]
+        target = v["_id"]
+        target_id = v["id"]
+        link_type = "instance-vnic"
+        # find related network
+        network_name = None
+        network_id = None
+        for net in instance["network_info"]:
+            if net["devname"] == v["id"]:
+                network_name = net["network"]["label"]
+                network_id = net['network']['id']
+                v['network'] = network_id
+                self.inv.set(v)
+                break
+        state = "up"  # TBD
+        link_weight = 0  # TBD
+        attributes = {} if not network_id else {'network': network_id}
+        self.create_link(self.get_env(),
+                         source, source_id, target, target_id,
+                         link_type, network_name, state, link_weight,
+                         host=host["name"],
+                         extra_attributes=attributes)