Merge pull request #497 from afourmy/IOS_get_network_instances

IOS get network instances

napalm/ios/ios.py

@@ -2146,6 +2146,52 @@ def traceroute(self, destination, source=C.TRACEROUTE_SOURCE,
         traceroute_dict['success'] = results
         return traceroute_dict
 
+    def get_network_instances(self, name=''):
+
+        instances = {}
+        sh_vrf_detail = self._send_command('show vrf detail')
+        show_ip_int_br = self._send_command('show ip interface brief')
+
+        # retrieve all interfaces for the default VRF
+        interface_dict = {}
+        show_ip_int_br = show_ip_int_br.strip()
+        for line in show_ip_int_br.splitlines():
+            if 'Interface ' in line:
+                continue
+            interface = line.split()[0]
+            interface_dict[interface] = {}
+
+        instances['default'] = {
+                                'name': 'default',
+                                'type': 'DEFAULT_INSTANCE',
+                                'state': {'route_distinguisher': ''},
+                                'interfaces': {'interface': interface_dict}
+                                }
+
+        for vrf in sh_vrf_detail.split('\n\n'):
+
+            first_part = vrf.split('Address family')[0]
+
+            # retrieve the name of the VRF and the Route Distinguisher
+            vrf_name, RD = re.match(r'^VRF (\S+).*RD (.*);', first_part).groups()
+            if RD == '<not set>':
+                RD = ''
+
+            # retrieve the interfaces of the VRF
+            if_regex = re.match(r'.*Interfaces:(.*)', first_part, re.DOTALL)
+            if 'No interfaces' in first_part:
+                interfaces = {}
+            else:
+                interfaces = {itf: {} for itf in if_regex.group(1).split()}
+
+            instances[vrf_name] = {
+                                   'name': vrf_name,
+                                   'type': 'L3VRF',
+                                   'state': {'route_distinguisher': RD},
+                                   'interfaces': {'interface': interfaces}
+                                   }
+        return instances if not name else instances[name]
+
     def get_config(self, retrieve='all'):
         """Implementation of get_config for IOS.
 

test/ios/mocked_data/test_get_network_instances/normal/expected_result.json

@@ -0,0 +1,78 @@
+{
+   "default":{
+      "interfaces":{
+         "interface":{
+            "GigabitEthernet0/0/0":{
+
+            },
+            "Gi0/0/0.152":{
+
+            },
+            "GigabitEthernet0/0/2":{
+
+            },
+            "Gi0/0/0.1774":{
+
+            },
+            "GigabitEthernet0/0/4":{
+
+            },
+            "Gi0/0/0.1772":{
+
+            },
+            "GigabitEthernet0/0/3":{
+
+            },
+            "Gi0/0/0.154":{
+
+            },
+            "GigabitEthernet0/0/1":{
+
+            },
+            "GigabitEthernet0":{
+
+            },
+            "Gi0/0/0.1776":{
+
+            },
+            "Gi0/0/0.600":{
+
+            },
+            "Loopback2":{
+
+            }
+         }
+      },
+      "state":{
+         "route_distinguisher":""
+      },
+      "type":"DEFAULT_INSTANCE",
+      "name":"default"
+   },
+   "Mgmt-intf":{
+      "interfaces":{
+         "interface":{
+            "Gi0":{
+
+            }
+         }
+      },
+      "state":{
+         "route_distinguisher":""
+      },
+      "type":"L3VRF",
+      "name":"Mgmt-intf"
+   },
+   "opsnet":{
+      "interfaces":{
+         "interface":{
+
+         }
+      },
+      "state":{
+         "route_distinguisher":"10283:1021312690"
+      },
+      "type":"L3VRF",
+      "name":"opsnet"
+   }
+}

test/ios/mocked_data/test_get_network_instances/normal/show_ip_interface_brief.txt

@@ -0,0 +1,17 @@
+Load for five secs: 0%/0%; one minute: 1%; five minutes: 1%
+Time source is NTP, 09:30:03.851 DST Wed Nov 8 2017
+
+Interface              IP-Address      OK? Method Status                Protocol
+GigabitEthernet0/0/0   unassigned      YES NVRAM  up                    up
+Gi0/0/0.152            192.168.241.21  YES NVRAM  up                    up
+Gi0/0/0.154            192.168.241.30  YES NVRAM  up                    up
+Gi0/0/0.600            192.168.241.141 YES NVRAM  up                    up
+Gi0/0/0.1772           120.177.177.1   YES NVRAM  up                    up
+Gi0/0/0.1774           101.177.177.1   YES NVRAM  up                    up
+Gi0/0/0.1776           100.177.177.1   YES NVRAM  up                    up
+GigabitEthernet0/0/1   unassigned      YES NVRAM  administratively down down
+GigabitEthernet0/0/2   unassigned      YES NVRAM  administratively down down
+GigabitEthernet0/0/3   unassigned      YES NVRAM  administratively down down
+GigabitEthernet0/0/4   unassigned      YES NVRAM  administratively down down
+GigabitEthernet0       192.168.243.80  YES NVRAM  up                    up
+Loopback2              192.168.242.152 YES NVRAM  up                    up

test/ios/mocked_data/test_get_network_instances/normal/show_vrf_detail.txt

@@ -0,0 +1,45 @@
+Load for five secs: 0%/0%; one minute: 0%; five minutes: 1%
+Time source is NTP, 09:28:50.737 DST Wed Nov 8 2017
+
+VRF Mgmt-intf (VRF Id = 1); default RD <not set>; default VPNID <not set>
+  New CLI format, supports multiple address-families
+  Flags: 0x1808
+  Interfaces:
+    Gi0
+Address family ipv4 unicast (Table ID = 0x1):
+  Flags: 0x0
+  No Export VPN route-target communities
+  No Import VPN route-target communities
+  No import route-map
+  No global export route-map
+  No export route-map
+  VRF label distribution protocol: not configured
+  VRF label allocation mode: per-prefix
+Address family ipv6 unicast (Table ID = 0x1E000001):
+  Flags: 0x0
+  No Export VPN route-target communities
+  No Import VPN route-target communities
+  No import route-map
+  No global export route-map
+  No export route-map
+  VRF label distribution protocol: not configured
+  VRF label allocation mode: per-prefix
+Address family ipv4 multicast not active
+
+VRF opsnet (VRF Id = 2); default RD 10283:1021312690; default VPNID <not set>
+  New CLI format, supports multiple address-families
+  Flags: 0x180C
+  No interfaces
+Address family ipv4 unicast (Table ID = 0x2):
+  Flags: 0x0
+  Export VPN route-target communities
+    RT:10283:50000
+  Import VPN route-target communities
+    RT:10283:50000
+  No import route-map
+  No global export route-map
+  No export route-map
+  VRF label distribution protocol: not configured
+  VRF label allocation mode: per-prefix
+Address family ipv6 unicast not active
+Address family ipv4 multicast not active